Saturday, June 30, 2012

Mesoscale Discussion 17:56:23.6393717

AREAS AFFECTED...CNTRL/SRN OH...CNTRL/SRN IND...CNTRL/SRN IL...NRN
KY

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 302255Z - 010130Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...SRN IL/IND/OH AND NRN KY ARE BEING MONITORED FOR POSSIBLE
SVR TSTM WATCH ISSUANCE THROUGH THE EVENING...WHILE THE SVR THREAT
WILL BE MUCH LOWER FARTHER NORTH FROM CNTRL IL TO CNTRL OH.

DISCUSSION...LATEST SFC MESOANALYSIS PLACES A WAVY QUASI-STATIONARY
FRONT EXTENDING FROM 20 WNW QUINCY IL TO 25 SE BLOOMINGTON IND TO
JUST SOUTH OF CINCINNATI OH TO NEAR CHARLESTON WV. TO THE NORTH OF
THIS FRONT...A 1011-MB SFC MESO-HIGH AND ASSOCIATED W-E-ORIENTED
MESO-RIDGE LIES FROM CNTRL IL TO CNTRL OH...AND IS THE RESULT OF
MULTIPLE ROUNDS OF CONVECTIVE OVERTURNING DURING THE PAST 30
HOURS...WITH REINFORCEMENT PROVIDED BY ONGOING CONVECTIVE DEBRIS
CLOUDS/SHOWERS/ISOLATED ELEVATED STORMS. ABUNDANT INHIBITION
COLOCATED WITH THE MESO-HIGH/RIDGE WILL LARGELY MITIGATE ANY SVR
THREAT FROM CNTRL IL EWD TO CNTRL OH.

MEANWHILE...WEAK WAA/ISENTROPIC ASCENT AND THE GLANCING INFLUENCE OF
A MID-LEVEL SHORTWAVE TROUGH ARE SUPPORTING A 20-MILE
WIDE...W-E-ELONGATED SEMI-ORGANIZED BAND OF CONVECTION ACROSS CNTRL
IL. WHILE CNTRL IL 0.5-DEGREE RADAR REFLECTIVITY DATA INDICATE
OUTFLOW LYING WELL IN ADVANCE OF PARENT CONVECTION -- SUGGESTING
ANAFRONTAL CHARACTER TO THE BAND -- MLCAPE VALUES OF 2500-3000 J/KG
PER MODIFIED CENTRAL IL 12Z RAOB COULD SUPPORT ADDITIONAL
DEVELOPMENT OF ONGOING ACTIVITY. SHOULD MORE STORMS DEVELOP AND A
LARGER COLD POOL BECOME ESTABLISHED...THEN A MESOSCALE CONVECTIVE
SYSTEM AND ASSOCIATED SVR THREAT COULD TRACK ESEWD INVOF THE FRONT
GIVEN 30-40 KT OF 0-6-KM BULK SHEAR PER WILMINGTON OH...INDIANAPOLIS
IND...AND CNTRL IL VWP DATA. THIS CONDITIONAL POTENTIAL WOULD
INCLUDE SRN IL/IND/OH AND NRN KY. HOWEVER...LARGE UNCERTAINTY IN
UPSCALE CONVECTIVE GROWTH EXISTS OWING TO THE ABSENCE OF STRONGER
FORCING FOR ASCENT...AS WELL AS THE LACK OF BOUNDARY-LAYER CU PER
VISIBLE SATELLITE IMAGERY ACROSS THE OH VALLEY -- PERHAPS INDICATING
ABUNDANT DRY AIR/INHIBITION THROUGH THE BOUNDARY LAYER.

..COHEN/HART.. 06/30/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...PBZ...RLX...CLE...JKL...ILN...LMK...IWX...IND...
PAH...LOT...ILX...LSX...

LAT...LON 37918473 37878614 38158802 38998988 39998993 40488865
40618812 40778692 40768580 40538284 39918220 38658229
37978358 37918473

Special Weather Statement 16:59:00.6052860

...EXTENDED HEAT WAVE EXPECTED...

HEAT AND HUMIDITY IS FORECAST TO BUILD NORTHWARD BACK INTO THE
AREA LATE THIS WEEKEND AND CONTINUE THROUGH NEXT WEEK. THE HEAT IS
FORECAST TO SPREAD NORTH SUNDAY WITH AFTERNOON HEAT INDICES NEAR
OR POSSIBLY ABOVE 100 DEGREES ACROSS THE ENTIRE AREA SUNDAY AND
EACH AFTERNOON THROUGH NEXT WEEK. DURING THE HOTTEST AFTERNOONS
HEAT INDEX READINGS OVER 105 DEGREES ARE POSSIBLE.

A FRONT IS FORECAST TO STALL OUT NORTH OF THE REGION AND ITS NOT
OUT OF THE QUESTION THAT THUNDERSTORMS COULD PUSH THIS FRONT SOUTH
AND BRING BRIEF BOUTS OF RELIEF FROM THE HEAT...BUT CURRENT
INDICATIONS ARE THE HEAT WAVE WILL BE RATHER UNRELENTING. THE LONG
DURATION OF THIS HEAT WAVE WILL TAKE A TOLL ON THOSE MOST
SUSCEPTIBLE TO HEAT. HOSPITALS...EMERGENCY MANAGERS...AND THOSE
RESPONSIBLE FOR HANDLING HEAT RELATED ILLNESS SHOULD PREPARE NOW
FOR THE POTENTIAL OF AN EXTENDED HEAT WAVE.

Special Weather Statement 05:24:12.1925748

...EXTENDED HEAT WAVE EXPECTED...

AFTER A BRIEF RESPITE FRIDAY...HEAT AND HUMIDITY IS FORECAST TO
BUILD NORTHWARD BACK INTO THE AREA THIS WEEKEND AND CONTINUE
THROUGH NEXT WEEK. AFTERNOON HEAT INDICES WILL LIKELY CLIMB ABOVE
100 DEGREES THIS AFTERNOON SOUTH OF INTERSTATE 80. THE HEAT IS
FORECAST TO SPREAD NORTH SUNDAY WITH AFTERNOON HEAT INDICES NEAR
OR POSSIBLY ABOVE 100 DEGREES ACROSS THE ENTIRE AREA SUNDAY AND
EACH AFTERNOON THROUGH NEXT WEEK. DURING THE HOTTEST AFTERNOONS
HEAT INDEX READINGS OVER 105 DEGREES ARE POSSIBLE.

A FRONT IS FORECAST TO STALL OUT NORTH OF THE REGION AND ITS NOT
OUT OF THE QUESTION THAT THUNDERSTORMS COULD PUSH THIS FRONT
SOUTH AND BRING BRIEF BOUTS OF RELIEF FROM THE HEAT...BUT CURRENT
INDICATIONS ARE THE HEAT WAVE WILL BE RATHER UNRELENTING. THE LONG
DURATION OF THIS HEAT WAVE WILL TAKE A TOLL ON THOSE MOST
SUSCEPTIBLE TO HEAT. HOSPITALS...EMERGENCY MANAGERS...AND THOSE
RESPONSIBLE FOR HANDLING HEAT RELATED ILLNESS SHOULD PREPARE NOW
FOR THE POTENTIAL OF AN EXTENDED HEAT WAVE.

Friday, June 29, 2012

Mesoscale Discussion 23:47:14.8477766

AREAS AFFECTED...W-CNTRL/CNTRL OH...NRN/CNTRL IND...NRN/CNTRL
IL...SERN IA

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 300446Z - 300645Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...A THREAT FOR SVR STORMS WILL PERSIST INTO THE OVERNIGHT
HOURS...PERHAPS SPREADING INTO PARTS OF W-CNTRL/CNTRL OHIO LATE IN
THE NIGHT. TRENDS WILL CONTINUE TO BE MONITORED...AND THE ISSUANCE
OF A SVR TSTM WATCH IS POSSIBLE.

DISCUSSION...A LOOSELY ORGANIZED...ELEVATED CONVECTIVE SYSTEM IS
CURRENTLY COMPRISED OF A FORWARD-PROPAGATING LINEAR SEGMENT
CURRENTLY APPROACHING THE IND/IL BORDER SOUTH OF CHICAGO...AND A
BACK-BUILDING SEGMENT OVER SERN IA AND ADJACENT PARTS OF NWRN IL
NEAR AND SOUTH OF MOLINE. THIS ACTIVITY PERSISTS AMIDST A
STRENGTHENING 850-700-MB WAA REGIME...AIDED BY INTENSIFICATION OF
THE BOUNDARY-LAYER WIND MAXIMUM. WITH MUCAPE VALUES IN EXCESS OF
2000 J/KG ACROSS MANY AREAS ROBUST UPDRAFTS WILL ENSUE. EFFECTIVE
BULK SHEAR MAGNITUDES OF 40-50 KT MAY CONTINUE TO SUPPORT CONVECTIVE
ORGANIZATION...AND PERHAPS UPSCALE GROWTH INTO A MORE
SUBSTANTIAL...NEAR-SFC BASED CONVECTIVE COMPLEX SHOULD A
LARGER/STRONGER COLD POOL MATERIALIZE. IF CONVECTIVE TRENDS APPEAR
TO SUGGEST A MORE WIDESPREAD SVR THREAT...THEN A SVR TSTM WATCH MAY
BE NEEDED DURING THE OVERNIGHT HOURS.

..COHEN/HART.. 06/30/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...ILN...IWX...IND...LOT...ILX...DVN...

LAT...LON 41728853 41528648 40958451 40088285 39598313 39478407
39818593 39908731 39948958 40419129 41159178 41639102
41728853

Mesoscale Discussion 19:34:08.6974351

AREAS AFFECTED...CNTRL/ERN IA...NRN/CNTRL IL...NWRN IND

CONCERNING...SEVERE THUNDERSTORM WATCH 437...

VALID 300033Z - 300200Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 437
CONTINUES.

SUMMARY...THE SVR THREAT ACROSS WW 437 WILL LIKELY HAVE DIMINISHED
BY THE SCHEDULED EXPIRATION TIME OF 02Z. REMAINING VALID PORTIONS OF
THE WW BEHIND ERN/SRN-FLANKING OUTFLOW BOUNDARY MAY BE CANCELLED
PRIOR TO EXPIRATION TIME. AREAS DOWNSTREAM ACROSS NRN/CNTRL IL INTO
NWRN IND WILL CONTINUE TO BE MONITORED FOR ADDITIONAL WW ISSUANCE
THROUGH THE NIGHT.

DISCUSSION...CONVECTION HAS BECOME LARGELY DISORGANIZED ACROSS WW
437 DURING THE LAST COUPLE OF HOURS...AFTER OUTFLOW FROM THE SMALL
SVR COMPLEX THAT CROSSED THE CEDAR RAPIDS AREA SURGED AHEAD OF
PARENT CONVECTION. THIS OUTFLOW BOUNDARY NOW EXTENDS WSWWD FROM 35
ENE MOLINE IL TO 45 E LAMONI IA. ISOLATED ELEVATED CONVECTION WITHIN
30 MILES N/W OF THIS BOUNDARY MAY POSE A MARGINAL SVR
THREAT...THOUGH THIS THREAT MAY SUBSIDE AS OUTFLOW SURGES AHEAD OF
THE CONVECTION. FARTHER WEST...WEAK ISENTROPIC ASCENT ATOP THE COLD
POOL IS SUPPORTING SCATTERED ELEVATED STORMS INTO WRN PARTS OF THE
WW AREA...AND AN ISOLATED MARGINALLY SVR HAIL THREAT CANNOT BE RULED
OUT. OVERALL...HOWEVER...THIS LOOSELY ORGANIZED CONVECTIVE SYSTEM
APPEARS TO BE EXHIBITING MORE ANAFRONTAL CHARACTERISTICS...WITH A
DIMINISHING SVR THREAT ANTICIPATED THROUGH 02Z.

MEANWHILE FOR DOWNSTREAM AREAS...A CONVECTIVELY AUGMENTED BOUNDARY
IS ADVANCING NEWD ACROSS IL INTO IND...WITH VERY UNSTABLE AIR
OBSERVED TO ITS SOUTH -- REF. CENTRAL ILLINOIS 00Z RAOB FEATURING
3260 J/KG OF MLCAPE /THOUGH WITH SUBSTANTIAL DRY AIR ALOFT/.
HOWEVER...MODEST MIXED-LAYER INHIBITION IS PRESENT...AND IS FORECAST
TO INCREASE THROUGH THE NIGHT OWING TO NOCTURNAL/DIABATIC COOLING.
REGARDLESS...WITH A NOCTURNAL INCREASE IN WAA COMMENSURATE WITH
STRENGTHENING WSWLY 700-850 MB FLOW/STRENGTHENING BOUNDARY-LAYER
WIND MAXIMUM...ADDITIONAL STORMS -- LIKELY INITIALLY ELEVATED --
MIGHT DEVELOP ACROSS PARTS OF IL/IND. SHOULD A SUFFICIENT NUMBER OF
STORMS MATERIALIZE WITH COLD POOL DEVELOPMENT/UPSCALE GROWTH
ENSUING...A MORE WIDESPREAD SVR THREAT WARRANTING WW ISSUANCE COULD
CONDITIONALLY DEVELOP LATER IN THE NIGHT DOWNSTREAM OF WW 437
PROVIDED 30-45 KT OF EFFECTIVE BULK SHEAR. HOWEVER...LARGE
UNCERTAINTY IN THIS THREAT REMAINS OWING TO THE AFOREMENTIONED
INHIBITION/LACK OF STRONGER DEEP FORCING FOR ASCENT.

..COHEN.. 06/30/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...IND...LOT...ILX...DVN...DMX...

LAT...LON 42319237 42309060 42058897 41618777 41038739 40288749
39948786 39808823 39778889 39888922 40579071 40709213
41069314 41819327 42319237

Air Quality Message 16:20:58.5826942

AEUS73 KLOT 292117
AQALOT

AIR QUALITY ALERT MESSAGE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
RELAYED BY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
356 PM CDT FRI JUN 29 2012

ILZ005-006-012>014-020>022-300500-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
417 PM CDT FRI JUN 29 2012

...AIR QUALITY ALERT IN EFFECT FROM TODAY THROUGH TONIGHT...

THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS DECLARED TODAY
AN AIR POLLUTION ACTION DAY FOR THE GREATER CHICAGO METROPOLITAN
AREA INCLUDING THE COUNTIES OF...

COOK...DUPAGE...KANE...KENDALL...GRUNDY...LAKE...MCHENRY AND WILL.

AN AIR POLLUTION ACTION DAY IS DECLARED WHEN WEATHER CONDITIONS
ARE SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS ARE
EXPECTED TO BE AT OR ABOVE THE UNHEALTHY FOR SENSITIVE GROUPS
CATEGORY OF THE AIR QUALITY INDEX. ACTIVE CHILDREN AND ADULTS AND
ESPECIALLY PEOPLE WITH PULMONARY OR RESPIRATORY DISEASE SUCH AS
ASTHMA SHOULD LIMIT PROLONGED OUTDOOR ACTIVITY.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. AREA RESIDENTS ARE ALSO URGED TO
REDUCE POLLUTION LEVELS. AQI FORECASTS AND TIPS ON HOW YOU CAN
REDUCE YOUR EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US

$$

INZ001-002-300500-
LAKE IN-PORTER-
417 PM CDT FRI JUN 29 2012

...AIR QUALITY ALERT IN EFFECT FROM TODAY THROUGH TONIGHT...

THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT HAS DECLARED AN
AIR POLLUTION ACTION DAY FOR LAKE AND PORTER COUNTIES IN NORTHWEST
INDIANA.

OZONE LEVELS ARE EXPECTED TO BE IN THE ORANGE OR UNHEALTHY
FOR SENSITIVE GROUPS RANGE. ACTIVE CHILDREN AND ADULTS AND PEOPLE
WITH RESPIRATORY DISEASE SUCH AS ASTHMA SHOULD LIMIT PROLONGED
OUTDOOR EXERTION. FOR ADDITIONAL INFORMATION PLEASE VISIT THE
FOLLOWING WEBSITE...

HTTP://WWW.IN.GOV/APPS/IDEM/SMOG/ OR

HTTP://WWW.AIRNOW.GOV/ AND CLICK ON INDIANA.

DUE TO THE EXPECTED ELEVATED POLLUTION LEVELS...PERSONS ARE
ENCOURAGED TO AVOID PROLONGED OUTDOOR EXERTION...PARTICULARLY THOSE
WITH PRE-EXISTING RESPIRATORY PROBLEMS.

$$

RODRIGUEZ

Mesoscale Discussion 09:22:42.3342437

AREAS AFFECTED...NRN/CNTRL IL/IND

CONCERNING...SEVERE POTENTIAL...SEVERE THUNDERSTORM WATCH LIKELY

VALID 291422Z - 291645Z

PROBABILITY OF WATCH ISSUANCE...80 PERCENT

SUMMARY...CLUSTER OF ELEVATED TSTMS CROSSING THE MS VALLEY IN IA/IL
SHOULD GROW UPSCALE AND BECOME SURFACE-BASED AS DOWNSTREAM HEATING
INTENSIFIES. PRIMARY SEVERE THREATS WILL BE DAMAGING WINDS AND LARGE
HAIL...WHICH SHOULD BECOME SCATTERED IN COVERAGE THIS AFTERNOON.

DISCUSSION...DOWNSTREAM OF AN MCV OVER ERN NEB...CLUSTER OF ELEVATED
TSTMS HAS ERUPTED IN ERN IA INTO NWRN IL. THIS ACTIVITY IS N OF THE
QUASI-STATIONARY FRONT EXTENDING FROM NEAR BRL TO IND. WITH
EXTREMELY BUOYANT MU PARCELS NOTED IN THE 12Z DVN/ILX RAOBS...MUCAPE
AOA 6000 J/KG...CONVECTION-ALLOWING MODELS ARE FAIRLY CONSISTENT
THAT AN MCS SHOULD EVOLVE E/SEWD FROM THE MS VALLEY
ACTIVITY...ESPECIALLY RECENT HRRR RUNS. WITH INTENSE SURFACE HEATING
EXPECTED DOWNSTREAM...THIS SCENARIO APPEARS PROBABLE WITHIN A
MODERATE NEARLY UNIDIRECTIONAL WLY FLOW REGIME. GIVEN THE DEGREE OF
INSTABILITY...THREATS FOR LARGE HAIL AND DAMAGING WINDS SHOULD
INCREASE THROUGH THE AFTERNOON ESPECIALLY WITHIN BOWING LINEAR
SEGMENTS.

..GRAMS/RACY/THOMPSON.. 06/29/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...ILN...IWX...IND...LOT...ILX...DVN...

LAT...LON 41828936 41368696 40728455 39758465 39268486 39218579
39708853 40319008 40679057 41289033 41828936

Air Quality Message 05:17:55.1888425

AEUS73 KLOT 291018
AQALOT

AIR QUALITY ALERT MESSAGE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
RELAYED BY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
512 AM CDT FRI JUN 29 2012

ILZ005-006-012>014-020>022-300000-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
518 AM CDT FRI JUN 29 2012

...AIR QUALITY ALERT IN EFFECT FROM EARLY TODAY THROUGH TONIGHT...

THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS DECLARED TODAY
AN AIR POLLUTION ACTION DAY FOR THE GREATER CHICAGO METROPOLITAN
AREA INCLUDING THE COUNTIES OF...

COOK...DUPAGE...KANE...KENDALL...GRUNDY...LAKE...MCHENRY AND WILL.

AN AIR POLLUTION ACTION DAY IS DECLARED WHEN WEATHER CONDITIONS ARE
SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS ARE EXPECTED TO
BE AT OR ABOVE THE UNHEALTHY FOR SENSITIVE GROUPS CATEGORY OF THE
AIR QUALITY INDEX. ACTIVE CHILDREN AND ADULTS AND ESPECIALLY PEOPLE
WITH PULMONARY OR RESPIRATORY DISEASE SUCH AS ASTHMA SHOULD LIMIT
PROLONGED OUTDOOR ACTIVITY.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. AREA RESIDENTS ARE ALSO URGED TO
REDUCE POLLUTION LEVELS. AQI FORECASTS AND TIPS ON HOW YOU CAN
REDUCE YOUR EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US


$$

INZ001-002-300000-
LAKE IN-PORTER-
518 AM CDT FRI JUN 29 2012

...AIR QUALITY ALERT IN EFFECT FROM EARLY TODAY THROUGH TONIGHT...

THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT HAS DECLARED AN
AIR POLLUTION ACTION DAY FOR LAKE AND PORTER COUNTIES IN NORTHWEST
INDIANA.

OZONE LEVELS ARE EXPECTED TO BE IN THE ORANGE OR UNHEALTHY
FOR SENSITIVE GROUPS RANGE. ACTIVE CHILDREN AND ADULTS AND PEOPLE
WITH RESPIRATORY DISEASE SUCH AS ASTHMA SHOULD LIMIT PROLONGED
OUTDOOR EXERTION. FOR ADDITIONAL INFORMATION PLEASE VISIT THE
FOLLOWING WEBSITE...

HTTP://WWW.IN.GOV/APPS/IDEM/SMOG/ OR

HTTP://WWW.AIRNOW.GOV/ AND CLICK ON INDIANA.

DUE TO THE EXPECTED ELEVATED POLLUTION LEVELS...PERSONS ARE
ENCOURAGED TO AVOID PROLONGED OUTDOOR EXERTION...PARTICULARLY THOSE
WITH PRE-EXISTING RESPIRATORY PROBLEMS.

$$

IZZI

Thursday, June 28, 2012

Mesoscale Discussion 20:27:08.7289172

AREAS AFFECTED...NRN IND...A SMALL PART OF NERN IL

CONCERNING...SEVERE THUNDERSTORM WATCH 433...

VALID 290126Z - 290230Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 433
CONTINUES.

SUMMARY...THE SVR THREAT CONTINUES ACROSS WW 433...AND THE WW MAY
NEED TO BE LOCALLY EXPANDED EWD INTO MARSHALL AND FULTON COUNTIES IN
NRN IND.

DISCUSSION...A SMALL CONVECTIVE SEGMENT HAS BECOME ORGANIZED AND
WILL CONTINUE TO BE STEERED ESEWD GIVEN 30-50 KT OF WNWLY FLOW
WITHIN THE 2-7-KM-AGL LAYER PER NORTHERN INDIANA VWP DATA. DMGG WIND
AND SVR HAIL WILL BE OF CONCERN WITH THIS ACTIVITY.

ELEVATED -- YET STRONGLY UNSTABLE -- INFLOW ATOP SWD/SWWD-SURGING
OUTFLOW...CURRENTLY EXTENDING FROM JASPER COUNTY IND TO
KANKAKEE/WILL COUNTIES IL...SHOULD MAINTAIN CONVECTION DURING THE
NEXT HOUR OR TWO OVER THE WRN FLANKS OF THE COLD POOL. THIS COULD
PROVIDE SOME LOCALIZED SVR THREAT JUST WEST OF THE WW AREA.
MEANWHILE...INFLOW INTO THE ERN-FLANK OF CONVECTION ENTERING STARKE
COUNTY IS LIKELY MORE SFC-BASED...AND FORWARD-PROPAGATION OF THIS
COMPONENT MAY BRING A SVR THREAT EAST OF THE WW AREA INTO MARSHALL
AND FULTON COUNTIES. AS SUCH...THE WW MAY NEED TO BE LOCALLY
EXPANDED EWD BY A TIER OF COUNTIES.

..COHEN.. 06/29/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...IWX...LOT...

LAT...LON 41368615 41168607 40978620 40838664 40898722 41308783
41618798 41728769 41628716 41488658 41368615

Non-Precipitation Watch, Warning, Advisory 19:48:08.7057512

...HEAT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE HEAT
ADVISORY.

Mesoscale Discussion 17:30:58.6242742

AREAS AFFECTED...NERN IL...NRN IND...SWRN LOWER MI

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 282230Z - 290000Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...AN AT LEAST ISOLATED SVR THREAT MAY MATERIALIZE ACROSS
PARTS OF NERN IL/NRN IND/SWRN LOWER MI. CONVECTIVE TRENDS WILL
CONTINUE TO BE MONITORED...AND A WW IS POSSIBLE IF A MORE WIDESPREAD
SVR THREAT APPEARS TO ENSUE.

DISCUSSION...ISOLATED CONVECTION IS DEVELOPING INVOF A SFC FRONT AND
NEARBY WIND-SHIFT AXES...ENHANCED BY LOCALIZED LAKE-BREEZE
CIRCULATIONS NEAR AND NORTH OF THE CHICAGO AREA. THE AREAS OF
GREATEST CONCERN FOR POSSIBLY SVR CONVECTION DURING THE NEXT HOUR OR
TWO INCLUDE KANE COUNTY EWD TO COOK COUNTY INTO SRN LAKE
MICHIGAN...WITH POTENTIAL IMPACTS TO THE CHICAGO AREA BETWEEN 2300
AND 2330 UTC.

THE CONVECTION APPEARS TO BE COLOCATED WITH THE WARM SIDE OF A
700-MB THERMAL GRADIENT. WHILE HOT INLAND SFC TEMPERATURES AMIDST
LOWER/MIDDLE 70S DEWPOINTS ARE SUPPORTING EXTREME
INSTABILITY...STRONG INHIBITION SOUTH OF THE 700-MB TEMPERATURE
GRADIENT OWING TO A PRONOUNCED WARM-LAYER ALOFT -- 700-MB TEMPS IN
EXCESS OF 16C -- YIELD UNCERTAINTY WITH REGARD TO THE FUTURE
EVOLUTION OF ONGOING CONVECTION. FURTHERMORE...THE ONLY GLANCING
INFLUENCE OF A MID-LEVEL SHORTWAVE TROUGH AND ASSOCIATED HEIGHT
FALLS/ASCENT SHOULD PROVIDE ONLY MINIMAL REDUCTION TO ONGOING CINH.

REGARDLESS...THERE IS SOME CONCERN FOR A LOCALIZED SVR-WIND THREAT
GIVEN SFC DEWPOINT DEPRESSIONS IN EXCESS OF 20F AND DCAPE VALUES IN
AOA 1300 J/KG...AS WLY/NWLY MID-LEVEL FLOW STEERS CONVECTION FROM
NERN IL INTO SWRN LOWER MI AND NRN IND. IF STORMS APPEAR TO SHOW
SIGNS OF GROWING UPSCALE INTO A CONVECTIVE COMPLEX WITH A MORE
WIDESPREAD SVR THREAT...A WW MAY BE NEEDED.

..COHEN/HART.. 06/28/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...IWX...GRR...LOT...

LAT...LON 42078508 41738528 41388615 41278783 41658893 42078911
42318826 42428749 42558686 42688579 42558527 42078508

Non-Precipitation Watch, Warning, Advisory 16:07:59.5749821

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT /9 PM EDT/ THIS
EVENING...

* TEMPERATURE...TEMPERATURES REMAINING IN THE 90S COINCIDING WITH
MODERATE TO HIGH HUMIDITY LEVELS WILL HELP MAINTAIN HEAT INDEX
VALUES OF 100 TO 110 THROUGH EARLY EVENING.

* IMPACTS...PROLONGED EXPOSURE TO THIS HEAT CAN BE DANGEROUS IF
THE PROPER PRECAUTIONS ARE NOT TAKEN. SUNSTROKE...HEAT CRAMPS
OR HEAT EXHAUSTION IS POSSIBLE WITH PROLONGED EXPOSURE AND
PHYSICAL ACTIVITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!

&&

Air Quality Message 13:03:59.4656861

AEUS73 KLOT 281803
AQALOT

AIR QUALITY ALERT MESSAGE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
RELAYED BY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1251 PM CDT THU JUN 28 2012

ILZ005-006-012>014-020>022-291815-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
103 PM CDT THU JUN 28 2012

...AIR QUALITY ALERT IN EFFECT FROM TODAY THROUGH FRIDAY NIGHT...

THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS DECLARED AN AIR
POLLUTION ACTION DAY FOR TODAY AND FRIDAY FOR THE GREATER CHICAGO
METROPOLITAN AREA INCLUDING THE COUNTIES OF...

COOK...DUPAGE...KANE...KENDALL...GRUNDY...LAKE...MCHENRY AND WILL.

AN AIR POLLUTION ACTION DAY IS DECLARED WHEN WEATHER CONDITIONS
ARE SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS ARE
EXPECTED TO BE AT OR ABOVE THE...UNHEALTHY FOR SENSITIVE
GROUPS...CATEGORY OF THE AIR QUALITY INDEX. ACTIVE CHILDREN AND
ADULTS...AND ESPECIALLY PEOPLE WITH PULMONARY OR RESPIRATORY
DISEASE SUCH AS ASTHMA...SHOULD LIMIT PROLONGED OUTDOOR ACTIVITY.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. AREA RESIDENTS ARE ALSO URGED TO
REDUCE POLLUTION LEVELS. AQI FORECASTS AND TIPS ON HOW YOU CAN
REDUCE YOUR EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US
AND AT WWW.AIRNOW.GOV

$$

INZ001-002-291815-
LAKE IN-PORTER-
103 PM CDT THU JUN 28 2012

...AIR QUALITY ALERT IN EFFECT FROM TODAY THROUGH FRIDAY NIGHT...

THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT HAS DECLARED AN
AIR POLLUTION ACTION DAY FOR TODAY AND FRIDAY FOR THE GREATER
CHICAGO METROPOLITAN AREA INCLUDING THE COUNTIES OF...

LAKE AND PORTER.

OZONE LEVELS ARE EXPECTED TO BE IN THE ORANGE OR UNHEALTHY
FOR SENSITIVE GROUPS RANGE. ACTIVE CHILDREN AND ADULTS AND PEOPLE
WITH RESPIRATORY DISEASE SUCH AS ASTHMA SHOULD LIMIT PROLONGED
OUTDOOR EXERTION. FOR ADDITIONAL INFORMATION PLEASE VISIT THE
FOLLOWING WEBSITE...

HTTP://WWW.IN.GOV/APPS/IDEM/SMOG/ OR

HTTP://WWW.AIRNOW.GOV/ AND CLICK ON INDIANA.

DUE TO THE EXPECTED ELEVATED POLLUTION LEVELS...PERSONS ARE
ENCOURAGED TO AVOID PROLONGED OUTDOOR EXERTION...PARTICULARLY THOSE
WITH PRE-EXISTING RESPIRATORY PROBLEMS.

$$

LENNING/RODRIGUEZ

Non-Precipitation Watch, Warning, Advisory 10:44:46.3829913

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT /9 PM EDT/ THIS
EVENING...

* TEMPERATURE...FORECAST HIGHS RANGE FROM THE 95 TO 104. MODERATE
HUMIDITY LEVELS WILL RESULT IN A PEAK HEAT INDEX OF 100 TO 110.

* IMPACTS...PROLONGED EXPOSURE TO THIS HEAT CAN BE DANGEROUS IF
THE PROPER PRECAUTIONS ARE NOT TAKEN. SUNSTROKE...HEAT CRAMPS
OR HEAT EXHAUSTION IS POSSIBLE WITH PROLONGED EXPOSURE AND
PHYSICAL ACTIVITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!

&&

Air Quality Message 07:19:00.2607660

AEUS73 KLOT 281218
AQALOT

AIR QUALITY ALERT MESSAGE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
RELAYED BY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
716 AM CDT THU JUN 28 2012

ILZ005-006-012>014-020>022-291230-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
718 AM CDT THU JUN 28 2012

...AIR QUALITY ALERT IN EFFECT FROM TODAY THROUGH TONIGHT...

THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS DETERMINED THAT AN
AIR POLLUTION ACTION DAY WILL BE DECLARED FOR THURSDAY JUNE 28TH
FOR THE GREATER CHICAGO METROPOLITAN AREA INCLUDING THE COUNTIES
OF...

COOK...DUPAGE...KANE...KENDALL...GRUNDY...LAKE...MCHENRY AND WILL.

AN AIR POLLUTION ACTION DAY IS DECLARED WHEN WEATHER CONDITIONS
ARE SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS ARE
EXPECTED TO BE AT OR ABOVE THE UNHEALTHY FOR SENSITIVE GROUPS
CATEGORY OF THE AIR QUALITY INDEX. ACTIVE CHILDREN AND ADULTS AND
ESPECIALLY PEOPLE WITH PULMONARY OR RESPIRATORY DISEASE SUCH AS
ASTHMA SHOULD LIMIT PROLONGED OUTDOOR ACTIVITY.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. AREA RESIDENTS ARE ALSO URGED TO
REDUCE POLLUTION LEVELS. AQI FORECASTS AND TIPS ON HOW YOU CAN
REDUCE YOUR EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US
AND AT WWW.AIRNOW.GOV

MEDIA CONTACT...217 299 6057. DUE TO THE EXPECTED ELEVATED
POLLUTION LEVELS...PERSONS ARE ENCOURAGED TO AVOID PROLONGED
OUTDOOR EXERTION...PARTICULARLY THOSE WITH PRE-EXISTING
RESPIRATORY PROBLEMS.

$$

INZ001-002-291230-
LAKE IN-PORTER-
718 AM CDT THU JUN 28 2012

...AIR QUALITY ALERT IN EFFECT FROM TODAY THROUGH TONIGHT...

THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT HAS DECLARED
THURSDAY JUNE 28TH...AN AIR POLLUTION ACTION DAY DUE TO ELEVATED
POLLUTION LEVELS.

OZONE LEVELS ARE EXPECTED TO BE IN THE ORANGE OR UNHEALTHY FOR
SENSITIVE GROUPS RANGE. ACTIVE CHILDREN AND ADULTS AND PEOPLE WITH
RESPIRATORY DISEASE SUCH AS ASTHMA SHOULD LIMIT PROLONGED OUTDOOR
EXERTION. FOR ADDITIONAL INFORMATION PLEASE VISIT THE FOLLOWING
WEBSITE...

HTTP://WWW.IN.GOV/APPS/IDEM/SMOG/ OR HTTP://WWW.AIRNOW.GOV/ AND
CLICK ON INDIANA.

DUE TO THE EXPECTED ELEVATED POLLUTION LEVELS...PERSONS ARE
ENCOURAGED TO AVOID PROLONGED OUTDOOR EXERTION...PARTICULARLY THOSE
WITH PRE-EXISTING RESPIRATORY PROBLEMS.

$$

BMD

Non-Precipitation Watch, Warning, Advisory 04:16:35.1524105

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON CDT /1 PM EDT/ TODAY
TO 8 PM CDT /9 PM EDT/ THIS EVENING...

* TEMPERATURE...FORECAST HIGHS RANGE FROM THE UPPER 90S TO NEAR
105 DEGREES. MODERATE HUMIDITY LEVELS WILL RESULT IN PEAK HEAT
INDEX VALUES IN THE 105 TO 110 DEGREE RANGE.

* IMPACTS...PROLONGED EXPOSURE TO THIS HEAT CAN BE DANGEROUS IF
THE PROPER PRECAUTIONS ARE NOT TAKEN. SUNSTROKE...HEAT CRAMPS
OR HEAT EXHAUSTION IS POSSIBLE WITH PROLONGED EXPOSURE AND
PHYSICAL ACTIVITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!

&&

Wednesday, June 27, 2012

Non-Precipitation Watch, Warning, Advisory 21:04:34.7511526

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON CDT /1 PM EDT/ TO
8 PM CDT /9 PM EDT/ THURSDAY...

* TEMPERATURE...FORECAST HIGHS RANGE FROM AROUND 100 TO NEAR 105
DEGREES. MODERATE HUMIDITY LEVELS WILL RESULT IN PEAK HEAT INDEX
VALUES IN THE 105 TO 110 DEGREE RANGE.

* IMPACTS...PROLONGED EXPOSURE TO THIS HEAT CAN BE DANGEROUS IF
THE PROPER PRECAUTIONS ARE NOT TAKEN. SUNSTROKE...HEAT CRAMPS
OR HEAT EXHAUSTION IS POSSIBLE WITH PROLONGED EXPOSURE AND
PHYSICAL ACTIVITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!

&&

Non-Precipitation Watch, Warning, Advisory 16:03:03.5720516

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON CDT /1 PM EDT/ TO
8 PM CDT /9 PM EDT/ THURSDAY...

* TEMPERATURE...FORECAST HIGHS RANGE FROM 100 TO NEAR 105
DEGREES. MODERATE HUMIDITY LEVELS WILL KEEP PEAK HEAT INDEX
READINGS IN THE 105 TO 110 DEGREE RANGE.

* IMPACTS...PROLONGED EXPOSURE TO THIS HEAT CAN BE DANGEROUS IF
THE PROPER PRECAUTIONS ARE NOT TAKEN. SUNSTROKE...HEAT CRAMPS
OR HEAT EXHAUSTION IS POSSIBLE WITH PROLONGED EXPOSURE AND
PHYSICAL ACTIVITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!

&&

Air Quality Message 12:57:07.4616072

AEUS73 KLOT 271757
AQALOT

AIR QUALITY ALERT MESSAGE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
RELAYED BY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1249 PM CDT WED JUN 27 2012

ILZ005-006-012>014-020>022-281800-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
1257 PM CDT WED JUN 27 2012

...AIR QUALITY ALERT IN EFFECT FROM TONIGHT THROUGH THURSDAY NIGHT...

THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS DETERMINED THAT AN
AIR POLLUTION ACTION DAY WILL BE DECLARED FOR THURSDAY JUNE 28TH
FOR THE GREATER CHICAGO METROPOLITAN AREA INCLUDING THE COUNTIES
OF...

COOK...DUPAGE...KANE...KENDALL...GRUNDY...LAKE...MCHENRY AND WILL.

AN AIR POLLUTION ACTION DAY IS DECLARED WHEN WEATHER CONDITIONS
ARE SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS ARE
EXPECTED TO BE AT OR ABOVE THE UNHEALTHY FOR SENSITIVE GROUPS
CATEGORY OF THE AIR QUALITY INDEX. ACTIVE CHILDREN AND ADULTS AND
ESPECIALLY PEOPLE WITH PULMONARY OR RESPIRATORY DISEASE SUCH AS
ASTHMA SHOULD LIMIT PROLONGED OUTDOOR ACTIVITY.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. AREA RESIDENTS ARE ALSO URGED TO
REDUCE POLLUTION LEVELS. AQI FORECASTS AND TIPS ON HOW YOU CAN
REDUCE YOUR EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US
AND AT WWW.AIRNOW.GOV

MEDIA CONTACT...217 299 6057. DUE TO THE EXPECTED ELEVATED
POLLUTION LEVELS...PERSONS ARE ENCOURAGED TO AVOID PROLONGED
OUTDOOR EXERTION...PARTICULARLY THOSE WITH PRE-EXISTING
RESPIRATORY PROBLEMS.

$$

INZ001-002-281800-
LAKE IN-PORTER-
1257 PM CDT WED JUN 27 2012

...AIR QUALITY ALERT IN EFFECT FROM TONIGHT THROUGH THURSDAY NIGHT...

THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT HAS DECLARED
THURSDAY JUNE 28TH...AN AIR POLLUTION ACTION DAY DUE TO ELEVATED
POLLUTION LEVELS.

OZONE LEVELS ARE EXPECTED TO BE IN THE ORANGE OR UNHEALTHY FOR
SENSITIVE GROUPS RANGE. ACTIVE CHILDREN AND ADULTS AND PEOPLE WITH
RESPIRATORY DISEASE SUCH AS ASTHMA SHOULD LIMIT PROLONGED OUTDOOR
EXERTION. FOR ADDITIONAL INFORMATION PLEASE VISIT THE FOLLOWING
WEBSITE...

HTTP://WWW.IN.GOV/APPS/IDEM/SMOG/ OR HTTP://WWW.AIRNOW.GOV/ AND
CLICK ON INDIANA.

DUE TO THE EXPECTED ELEVATED POLLUTION LEVELS...PERSONS ARE
ENCOURAGED TO AVOID PROLONGED OUTDOOR EXERTION...PARTICULARLY THOSE
WITH PRE-EXISTING RESPIRATORY PROBLEMS.

$$

BMD

Non-Precipitation Watch, Warning, Advisory 11:44:43.4186017

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON CDT /1 PM EDT/ TO
8 PM CDT /9 PM EDT/ THURSDAY...

* TEMPERATURE...FORECAST HIGHS RANGE FROM 100 TO NEAR 105
DEGREES. MODERATE HUMIDITY LEVELS WILL KEEP PEAK HEAT INDEX
READINGS IN THE 105 TO 110 DEGREE RANGE.

* IMPACTS...PROLONGED EXPOSURE TO THIS HEAT CAN BE DANGEROUS IF
THE PROPER PRECAUTIONS ARE NOT TAKEN. SUNSTROKE...HEAT CRAMPS
OR HEAT EXHAUSTION IS POSSIBLE WITH PROLONGED EXPOSURE AND
PHYSICAL ACTIVITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!

&&

Test Message 11:00:15.3921884

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Non-Precipitation Watch, Warning, Advisory 04:22:17.1557962

...HEAT ADVISORY IN EFFECT FROM NOON CDT /1 PM EDT/ TO 8 PM CDT
/9 PM EDT/ THURSDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM NOON CDT /1 PM EDT/ TO 8 PM
CDT /9 PM EDT/ THURSDAY.

* TEMPERATURE...FORECAST HIGHS RANGE FROM 100 TO NEAR 105 DEGREES.
MODERATE HUMIDITY LEVELS WILL KEEP PEAK HEAT INDEX READINGS IN
THE 105 TO 110 DEGREE RANGE.

* IMPACTS...PROLONGED EXPOSURE TO THIS HEAT CAN BE DANGEROUS IF
THE PROPER PRECAUTIONS ARE NOT TAKEN. SUNSTROKE...HEAT CRAMPS OR
HEAT EXHAUSTION IS POSSIBLE WITH PROLONGED EXPOSURE AND PHYSICAL
ACTIVITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!

&&

Tuesday, June 26, 2012

Special Weather Statement 16:16:14.5798826

...VERY HOT WEATHER EXPECTED ON THURSDAY...

MAXIMUM TEMPERATURES WILL REACH OR SLIGHTLY EXCEED 100 DEGREES FOR
THE MAJORITY OF NORTHERN ILLINOIS AND NORTHWEST INDIANA ON
THURSDAY. DEWPOINTS WILL ALSO BE HIGH...MAKING IT FEEL LIKE 100 TO
110 DEGREES OUTDOORS.

TO MINIMIZE THE THREAT OF EXCESSIVE HEAT EXPOSURE...TAKE FREQUENT
BREAKS DURING ANY STRENUOUS OUTDOOR ACTIVITY...PREFERABLY IN AN
AIR-CONDITIONED LOCATION. IF POSSIBLE RESCHEDULE THESE ACTIVITIES
DURING THE COOLER EARLY MORNING OR EVENING HOURS. STAY HYDRATED
WITH NON- ALCOHOLIC FLUIDS...PREFERABLY WATER...AND WEAR LIGHT
FITTING LOOSE CLOTHES. PROVIDE SHELTER FROM THE SUN AND WATER FOR
PETS. DO NOT LEAVE CHILDREN OR PETS UNATTENDED IN A VEHICLE...EVEN
FOR A MINUTE.

Wednesday, June 20, 2012

Test Message 11:00:09.3921291

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Monday, June 18, 2012

Non-Precipitation Watch, Warning, Advisory 15:47:52.5630328

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TIMING...NOW THROUGH EARLY EVENING.

* WINDS...SUSTAINED WINDS AROUND 30 MPH GUSTS AROUND 45 MPH. WINDS
WILL DIMINISH TOWARD SUNSET.

* IMPACTS...HAZARDOUS CONDITIONS FOR HIGH PROFILE VEHICLES...AT
CONSTRUCTIONS SITES WHERE LOOSE MATERIALS MAY BECOME AIRBORNE
AND UNSUPPORTED WALLS MAY NOT BE ABLE TO REMAIN STANDING...AND
FOR MOTORISTS AND PEDESTRIANS ALIKE WITH LOOSE OBJECTS AND
DEBRIS LIKELY TO BE BLOWING ABOUT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

Radar Outage Notification 13:58:59.4983561

NOUS63 KLOT 181858
FTMLOT
Message Date: Jun 18 2012 18:58:47KLOT WSR-88D RADAR IS BACK ONLINE. KCM

Non-Precipitation Watch, Warning, Advisory 11:03:52.3943368

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TIMING...EARLY AFTERNOON THROUGH EARLY EVENING.

* WINDS...SUSTAINED WINDS 30 TO 35 MPH WITH GUSTS 45 TO 50 MPH.

* IMPACTS...HAZARDOUS CONDITIONS FOR HIGH PROFILE VEHICLES...AT
CONSTRUCTIONS SITES WHERE LOOSE MATERIALS MAY BECOME AIRBORNE
AND UNSUPPORTED WALLS MAY NOT BE ABLE TO REMAIN STANDING...AND
FOR MOTORISTS AND PEDESTRIANS ALIKE WITH LOOSE OBJECTS AND
DEBRIS LIKELY TO BE BLOWING ABOUT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

Radar Outage Notification 09:59:36.3561624

NOUS63 KLOT 181459
FTMLOT
Message Date: Jun 18 2012 14:59:24KLOT WSR-88D RADAR IS GOING OFFLINE FOR SERVERAL HOURS FOR CORRECTIVE MAINTENANCE. WE WILL BE REPLACING 2A9A10 HYBRID COUPLER IN THE AME. KCM

Non-Precipitation Watch, Warning, Advisory 04:37:42.1649538

...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
CDT THIS EVENING.

* TIMING...EARLY AFTERNOON THROUGH EARLY EVENING.

* WINDS...SUSTAINED WINDS 30 TO 35 MPH WITH GUSTS 45 TO 50 MPH.

* IMPACTS...HAZARDOUS CONDITIONS FOR HIGH PROFILE VEHICLES...AT
CONSTRUCTIONS SITES WHERE LOOSE MATERIALS MAY BECOME AIRBORNE
AND UNSUPPORTED WALLS MAY NOT BE ABLE TO REMAIN STANDING...AND
FOR MOTORISTS AND PEDESTRIANS ALIKE WITH LOOSE OBJECTS AND
DEBRIS LIKELY TO BE BLOWING ABOUT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

Saturday, June 16, 2012

Mesoscale Discussion 22:31:13.8026226

AREAS AFFECTED...NRN AND CNTRL IL INTO E CNTRL MO

CONCERNING...SEVERE THUNDERSTORM WATCH 402...403...

VALID 170330Z - 170500Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
402...403...CONTINUES.

SUMMARY...ADDITIONAL WWS ARE NOT ANTICIPATED. WWS 402 AND 403 MAY
BE CANCELLED EARLY.

DISCUSSION...GIVEN THE RELATIVELY MODEST TO WEAK STRENGTH OF THE
SYSTEM RELATIVE INFLOW...AND CONTINUED COOLING OF THE INFLOW SOURCE
REGION...CONSIDERABLE WEAKENING OF THE MESOSCALE CONVECTIVE SYSTEM
HAS OCCURRED DURING THE PAST HOUR OR SO. THERE APPEARS LITTLE
SUPPORT FOR RE-INTENSIFICATION...AND MORE RAPID DISSIPATION OF
ACTIVITY APPEARS POSSIBLE AS IT PROGRESSES EASTWARD THROUGH 04-06Z.

..KERR.. 06/17/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...IWX...GRR...IND...PAH...LOT...ILX...LSX...

LAT...LON 38319151 39019020 39978908 41008811 41508766 42028670
42108538 41438510 40378569 39238703 38098904 37619023
38319151

Watch County Notification 21:40:19.7723881

THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 402 FOR THE FOLLOWING AREAS

IN ILLINOIS THIS CANCELS 9 COUNTIES

IN NORTH CENTRAL ILLINOIS

BOONE DE KALB LEE
OGLE WINNEBAGO

IN NORTHEAST ILLINOIS

DUPAGE KANE LAKE IL
MCHENRY

THIS INCLUDES THE CITIES OF...AURORA...BELVIDERE...DEKALB...
DIXON...OREGON...ROCKFORD...WAUKEGAN...WHEATON AND WOODSTOCK.

Mesoscale Discussion 19:59:20.7124040

AREAS AFFECTED...NRN AND CNTRL IL INTO E CNTRL MO

CONCERNING...SEVERE THUNDERSTORM WATCH 401...402...

VALID 170058Z - 170230Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
401...402...CONTINUES.

SUMMARY...IT IS NOT CERTAIN THAT ANOTHER WW WILL BE NEEDED
SOUTH/EAST OF WWS 401 AND 402...BUT TRENDS WILL CONTINUE TO BE
MONITORED FOR THE POSSIBILITY OF A CONTINUING/INCREASING SEVERE
THREAT THAT MAY REQUIRE ONE.

DISCUSSION...AS A SURFACE CYCLONE DEEPENS OVER NORTHWEST
ONTARIO...MODEST SOUTHERLY 850 MB JET STRENGTHENING IS FORECAST
AHEAD OF A TRAILING SURFACE FRONT...WITH 30+ KTS BECOMING MORE
PROMINENT AS LEAST AS FAR SOUTH AS NORTHERN ILLINOIS. VARIABILITY
EXISTS AMONG THE MODEL GUIDANCE CONCERNING THE STRENGTH OF THE LOWER
FLOW FIELDS FARTHER SOUTH...INTO THE MIDDLE MISSISSIPPI VALLEY. AND
THIS WILL IMPACT THE EXTENT OF THE CONTINUING SEVERE RISK THIS
EVENING...AS THE BOUNDARY LAYER AHEAD OF THE STILL EVOLVING
MESOSCALE CONVECTIVE SYSTEM SLOWLY BEGINS TO STABILIZE WITH
RADIATIONAL SURFACE COOLING. BUT CLOUD TOPS HAVE BEEN COOLING WITH
CONSOLIDATING STORMS OVER CENTRAL MISSOURI...WHICH COULD BEGIN
IMPACTING THE ST. LOUIS METROPOLITAN AREA DURING THE 02-04Z TIME
FRAME.

..KERR.. 06/17/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...ILX...LSX...DVN...SGF...

LAT...LON 38529206 38829174 39079099 40079013 40508989 40938951
41668915 41808786 41648751 40648775 39468819 38838869
38039027 37699162 38529206

Watch County Notification 18:41:00.6658740

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
402 IN EFFECT UNTIL 2 AM CDT /3 AM EDT/ SUNDAY FOR THE FOLLOWING
AREAS

IN ILLINOIS THIS WATCH INCLUDES 18 COUNTIES

IN CENTRAL ILLINOIS

LIVINGSTON

IN EAST CENTRAL ILLINOIS

FORD IROQUOIS

IN NORTH CENTRAL ILLINOIS

BOONE DE KALB LA SALLE
LEE OGLE WINNEBAGO

IN NORTHEAST ILLINOIS

COOK DUPAGE GRUNDY
KANE KANKAKEE KENDALL
LAKE IL MCHENRY WILL

IN INDIANA THIS WATCH INCLUDES 5 COUNTIES

IN NORTHWEST INDIANA

BENTON JASPER LAKE IN
NEWTON PORTER

THIS INCLUDES THE CITIES OF...AURORA...BELVIDERE...CHICAGO...
DEKALB...DIXON...FOWLER...GARY...JOLIET...KANKAKEE...MOROCCO...
MORRIS...OREGON...OSWEGO...OTTAWA...PIPER CITY...PONTIAC...
RENSSELAER...ROCKFORD...VALPARAISO...WATSEKA...WAUKEGAN...
WHEATON AND WOODSTOCK.

Mesoscale Discussion 18:10:47.6479253

AREAS AFFECTED...NRN ILLINOIS

CONCERNING...SEVERE THUNDERSTORM WATCH 401...

VALID 162310Z - 170045Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 401
CONTINUES.

SUMMARY...AN ADDITIONAL WW MAY BE NEEDED ACROSS THE REMAINDER OF
NORTHERN ILLINOIS WITHIN THE NEXT HOUR OR TWO.

DISCUSSION...THE ORGANIZED STORM CLUSTER NOW CROSSING THE
MISSISSIPPI RIVER... EAST OF MOLINE AND BURLINGTON...WITH A BOW ECHO
CONFIGURATION IN RADAR REFLECTIVITIES...APPEARS TO REMAIN VIGOROUS.
SOME RECENT WEAKENING HAS BEEN OBSERVED...BUT THIS MAY BE TEMPORARY.
LATEST OBJECTIVE INSTABILITY ANALYSES ARE SUGGESTIVE THAT THE
ENVIRONMENT MAY STILL BE MODERATELY UNSTABLE...WITH MIXED LAYER CAPE
AS HIGH AS 2000 J/KG...IN A CORRIDOR ACROSS NORTHERN ILLINOIS.
COUPLED WITH SOME STRENGTHENING OF WESTERLY DEEP LAYER MEAN
FLOW...PERHAPS UP TO AROUND 30 KT...DURING THE NEXT FEW HOURS...THIS
SUPPORTS POTENTIAL FOR RE-INTENSIFICATION AS CONVECTION PROGRESSES
EASTWARD. ACTIVITY MAY BEGIN IMPACTING AT LEAST THE SOUTHERN
PORTION OF THE CHICAGO METROPOLITAN AREA BY AROUND 03Z...WITH THE
POTENTIAL FOR STRONG WIND GUSTS AND SOME HAIL...IN ADDITION TO
FREQUENT CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY RAINFALL.

..KERR.. 06/16/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...ILX...DVN...

LAT...LON 41659060 41978974 42108887 42098808 41968768 41418753
41048814 40898948 40899054 40839086 41659060

Mesoscale Discussion 15:38:44.5576075

AREAS AFFECTED...NRN MO...SERN IA AND WRN/NWRN IL

CONCERNING...SEVERE THUNDERSTORM WATCH 400...

VALID 162038Z - 162215Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 400
CONTINUES.

SUMMARY...THREAT FOR ISOLATED DAMAGING WIND AND HAIL WILL PERSIST
THROUGH THE EARLY EVENING FROM NRN MO...SERN IA INTO WRN AND NWRN
IL.

DISCUSSION...STORMS CONTINUE DEVELOPING IN ASSOCIATION WITH COMPACT
VORT MAX FROM SRN IA INTO NRN MO AS WELL AS FARTHER EAST ALONG
CONFLUENCE AXIS IN NWRN IL. MORE ROBUST STORMS WILL REMAIN IN
VICINITY OF THE PROGRESSIVE VORT MAX WHERE VERTICAL SHEAR FROM 35-40
KT IS SUFFICIENT FOR ACTIVITY TO BECOME A LITTLE BETTER ORGANIZED
WITH POTENTIAL FOR FEW STORMS TO DEVELOP MID LEVEL UPDRAFT ROTATION
AND EVOLVE INTO BOWING SEGMENTS. ACTIVITY WILL CONTINUE EWD THROUGH
INSTABILITY AXIS FROM NERN MO...SERN IA INTO NRN IL DURING THE
EVENING.

..DIAL.. 06/16/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...ILX...LSX...DVN...DMX...EAX...

LAT...LON 40059445 41509209 42228951 40388985 39269430 40059445

Mesoscale Discussion 12:43:17.4533902

AREAS AFFECTED...SERN IA...NERN MO INTO NRN/WRN IL

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 161742Z - 161845Z

PROBABILITY OF WATCH ISSUANCE...80 PERCENT

SUMMARY...STORMS EXPECTED TO DEVELOP FROM NERN MO THROUGH SERN IA
AND WRN/NRN IL. PRIMARY THREATS WILL BE ISOLATED DAMAGING WIND AND
LARGE HAIL. A WW WILL PROBABLY BE NEEDED SOON.

DISCUSSION...LATEST VISIBLE IMAGERY SHOW CUMULUS INCREASING ALONG A
SW-NE LOW LEVEL CONVERGENCE ZONE TROUGH FROM SERN IA INTO NRN IL. A
DECAYING OUTFLOW/GRAVITY WAVE WAS ALSO INDICATED MOVING THROUGH ERN
AND NERN MO. STORMS ARE EXPECTED TO DEVELOP IN VICINITY OF THESE
BOUNDARIES SOON AS THE ATMOSPHERE DESTABILIZES AND CAP WEAKENS WITH
MLCAPE FROM 2000-2500 J/KG. WEAK VERTICAL SHEAR WILL SUPPORT
MULTICELLS. HOWEVER...THE THERMODYNAMIC ENVIRONMENT WITH 6.5-7 C/KM
LAPSE RATES AND MODERATE INSTABILITY WILL PROMOTE A THREAT OF
ISOLATED LARGE HAIL AND DAMAGING WIND.

..DIAL/HART.. 06/16/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...ILX...LSX...DVN...DMX...EAX...

LAT...LON 40589246 41549125 42348967 41618914 40868963 39249094
39989183 40589246

Wednesday, June 13, 2012

Test Message 11:00:04.3920796

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Tuesday, June 12, 2012

Radar Outage Notification 14:31:52.5178887

NOUS63 KLOT 121929
FTMLOT
Message Date: Jun 12 2012 19:29:50KLOT WSR-88D RADAR IS BACK ONLINE. KCM DETECTED

Radar Outage Notification 09:51:29.3513411

NOUS63 KLOT 121450
FTMLOT
Message Date: Jun 12 2012 14:50:51KLOT WSR-88D RADAR IS GOING OFFLINE FOR SEVERAL HOURS CHECK ON THE VERTICAL NOSIE TEMP ERROR. KCM

Sunday, June 10, 2012

Air Quality Message 04:49:51.1721709

AEUS73 KLOT 100949
AQALOT

AIR QUALITY ALERT MESSAGE
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
RELAYED BY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
442 AM CDT SUN JUN 10 2012

INZ001-002-110600-
LAKE IN-PORTER-
449 AM CDT SUN JUN 10 2012

...AIR QUALITY ALERT IN EFFECT FROM EARLY TODAY THROUGH TONIGHT...

THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT HAS DECLARED
SUNDAY JUNE 10TH...AN AIR QUALITY ACTION DAY DUE TO ELEVATED
POLLUTION LEVELS.

OZONE LEVELS ARE EXPECTED TO BE IN THE ORANGE OR UNHEALTHY FOR
SENSITIVE GROUPS RANGE. ACTIVE CHILDREN AND ADULTS AND PEOPLE WITH
RESPIRATORY DISEASE SUCH AS ASTHMA SHOULD LIMIT PROLONGED OUTDOOR
EXERTION. FOR ADDITIONAL INFORMATION PLEASE VISIT THE FOLLOWING
WEBSITE...

HTTP://WWW.IN.GOV/APPS/IDEM/SMOG/ OR HTTP://WWW.AIRNOW.GOV/ AND
CLICK ON INDIANA.

DUE TO THE EXPECTED ELEVATED POLLUTION LEVELS...PERSONS ARE
ENCOURAGED TO AVOID PROLONGED OUTDOOR EXERTION...PARTICULARLY THOSE
WITH PRE-EXISTING RESPIRATORY PROBLEMS.

$$

ILZ005-006-012>014-020>022-110600-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
449 AM CDT SUN JUN 10 2012

...AIR QUALITY ALERT IN EFFECT FROM TODAY THROUGH TONIGHT...

THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS DETERMINED THAT
AN AIR POLLUTION ACTION DAY WILL BE DECLARED FOR SUNDAY JUNE 10TH
FOR THE GREATER CHICAGO METROPOLITAN AREA INCLUDING THE COUNTIES
OF...

COOK...DUPAGE...KANE...KENDALL...GRUNDY...LAKE...MCHENRY AND WILL.

AN AIR POLLUTION ACTION DAY IS DECLARED WHEN WEATHER CONDITIONS
ARE SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS ARE
EXPECTED TO BE AT OR ABOVE THE UNHEALTHY FOR SENSITIVE GROUPS
CATEGORY OF THE AIR QUALITY INDEX. ACTIVE CHILDREN AND ADULTS AND
ESPECIALLY PEOPLE WITH PULMONARY OR RESPIRATORY DISEASE SUCH AS
ASTHMA SHOULD LIMIT PROLONGED OUTDOOR ACTIVITY.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. AREA RESIDENTS ARE ALSO URGED TO
REDUCE POLLUTION LEVELS. AQI FORECASTS AND TIPS ON HOW YOU CAN
REDUCE YOUR EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US
AND AT WWW.AIRNOW.GOV

MEDIA CONTACT...217 299 6057.DUE TO THE EXPECTED ELEVATED POLLUTION
LEVELS...PERSONS ARE ENCOURAGED TO AVOID PROLONGED OUTDOOR
EXERTION...PARTICULARLY THOSE WITH PRE-EXISTING RESPIRATORY
PROBLEMS.

$$

RODRIGUEZ

Saturday, June 9, 2012

Air Quality Message 10:22:06.3695274

AEUS73 KLOT 091522
AQALOT

AIR QUALITY ALERT MESSAGE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
RELAYED BY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1022 AM CDT SAT JUN 9 2012

ILZ005-006-012>014-020>022-110500-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
1022 AM CDT SAT JUN 9 2012

...AIR QUALITY ALERT IN EFFECT FROM SUNDAY THROUGH SUNDAY NIGHT...

THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS DETERMINED THAT AN
AIR POLLUTION ACTION DAY WILL BE DECLARED FOR SUNDAY AND SUNDAY
NIGHT FOR THE GREATER CHICAGO METROPOLITAN AREA INCLUDING THE
COUNTIES OF...

COOK...DUPAGE...KANE...KENDALL...GRUNDY...LAKE...MCHENRY AND WILL.

AN AIR POLLUTION ACTION DAY IS DECLARED WHEN WEATHER CONDITIONS
ARE SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS ARE
EXPECTED TO BE AT OR ABOVE THE UNHEALTHY FOR SENSITIVE GROUPS
CATEGORY OF THE AIR QUALITY INDEX. ACTIVE CHILDREN AND ADULTS AND
ESPECIALLY PEOPLE WITH PULMONARY OR RESPIRATORY DISEASE SUCH AS
ASTHMA SHOULD LIMIT PROLONGED OUTDOOR ACTIVITY.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. AREA RESIDENTS ARE ALSO URGED TO
REDUCE POLLUTION LEVELS. AQI FORECASTS AND TIPS ON HOW YOU CAN
REDUCE YOUR EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US
AND AT WWW.AIRNOW.GOV

MEDIA CONTACT... 2 1 7 2 9 9 6 0 5 7 . DUE TO THE EXPECTED
ELEVATED POLLUTION LEVELS...PERSONS ARE ENCOURAGED TO AVOID
PROLONGED OUTDOOR EXERTION...PARTICULARLY THOSE WITH PRE-EXISTING
RESPIRATORY PROBLEMS.

$$

MTF

Wednesday, June 6, 2012

Test Message 11:00:56.3925943

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Saturday, June 2, 2012

Mesoscale Discussion 13:05:34.4666266

AREAS AFFECTED...PORTIONS OF ERN IA...FAR ERN MO...MUCH OF
IL...CNTRL/WRN IND

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 021805Z - 022000Z

PROBABILITY OF WATCH ISSUANCE...20 PERCENT

SUMMARY...A FEW STORMS MAY CONTAIN MARGINALLY SVR HAIL/WIND THIS
AFTERNOON. THE LIMITED POTENTIAL OF SVR STORMS WILL LIKELY PRECLUDE
THE ISSUANCE OF A WW.

DISCUSSION...RECENT WATER VAPOR IMAGERY INDICATES A RIBBON OF
MID/UPPER ASCENT IN ASSOCIATION WITH DCVA ATTENDANT TO AN UPPER JET
OVER THE SWRN FLANK OF THE BROAD CYCLONIC CIRCULATION ENVELOPING THE
NERN QUARTER OF THE CONUS. BENEATH THIS ASCENT...TOWERING CUMULUS
CONTINUES TO DEVELOP INVOF /1/ A SFC TROUGH AXIS THAT IS SHIFTING
SEWD ACROSS CNTRL/ERN IA...AND /2/ A SFC DEWPOINT GRADIENT EXTENDING
FROM FAR NERN IA ACROSS FAR SWRN WI AND INTO NRN IL AND NRN IND.
THESE FEATURES WILL SERVE AS THE FOCI FOR CONVECTIVE DEVELOPMENT
INTO THE AFTERNOON.

DESTABILIZATION OWING TO AREAS OF INSOLATION/DIABATIC HEATING AND
THE AFOREMENTIONED MID/UPPER ASCENT WILL LIKELY ALLOW CONVECTION TO
DEEPEN WHILE TRACKING SEWD/ESEWD. WHILE LOW-LEVEL MOISTURE IS RATHER
MEAGER -- I.E. SFC DEWPOINTS IN THE UPPER 40S AND THE LOWER 50S --
STEEP LAPSE RATES ASSOCIATED WITH COLD MID-LEVEL TEMPERATURES /-20C
TO -18C AT 500 MB PER 12Z RAOBS/ WILL SUPPORT MARGINAL
DESTABILIZATION WITH MLCAPE VALUES OF 300-800 J/KG /HIGHEST OUTSIDE
OF CONVECTIVE DEBRIS CLOUDS OVER CNTRL IL/. AND...WITH
MODERATE/STRONG WNWLY/NWLY FLOW OVER THE AREA...20-30 KT OF
EFFECTIVE BULK SHEAR WILL SUPPORT OCCASIONALLY ORGANIZED CONVECTIVE
STRUCTURES INCLUDING MULTICELL STORMS WITH A THREAT FOR SVR
WIND/HAIL. HOWEVER...THE LACK OF RICHER LOW-LEVEL MOISTURE AND LACK
OF GREATER INSTABILITY SHOULD LIMIT THE POTENTIAL OF SVR STORMS.
STORMS WILL DECREASE IN NUMBER/INTENSITY AS NOCTURNAL STABILIZATION
COMMENCES EARLY THIS EVENING.

..COHEN/CARBIN.. 06/02/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...IWX...IND...PAH...LOT...ILX...LSX...DVN...

LAT...LON 40439195 41529196 42369164 42359061 41778894 41308669
40908561 39828566 38828659 38468802 38348890 38278995
38899112 40439195