Wednesday, July 20, 2016

Excessive Heat Watch for Mchenry Co., IL until 07:00 PM CDT 07/22

WWUS73 KLOT 201520
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1020 AM CDT WED JUL 20 2016

...DANGEROUS HEAT POSSIBLE ON THURSDAY AND FRIDAY...

.VERY HOT AND HUMID CONDITIONS WILL ARRIVE THURSDAY AND CONTINUE
INTO FRIDAY. TEMPERATURES WILL QUICKLY RISE INTO THE MIDDLE 90S
BOTH THURSDAY AND FRIDAY ALONG WITH DEW POINTS APPROACHING THE
UPPER 70S. THE COMBINATION IS EXPECTED TO PRODUCE HEAT INDICES
BETWEEN 105 TO PERHAPS 115. OVERNIGHT LOWS WILL REMAIN IN THE 70S
AND THUS LIMITED RELIEF WILL OCCUR AT NIGHT. HEAT AND HUMIDITY
WILL LINGER THROUGH THE WEEKEND IN SPITE OF SOME RELIEF BEING
POSSIBLE DUE TO SLIGHTLY COOLER CONDITIONS AND THUNDERSTORMS.


/O.CON.KLOT.EH.A.0001.160721T1700Z-160723T0000Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-DE KALB-KANE-DUPAGE-COOK-KENDALL-
WILL-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...DEKALB...AURORA...ELGIN...WHEATON...CHICAGO...OSWEGO...
JOLIET
1020 AM CDT WED JUL 20 2016

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY EVENING...

* TEMPERATURE...MID 90S THURSDAY AND FRIDAY.

* MAXIMUM HEAT INDEX VALUES...105 TO 115 DEGREES.

* IMPACTS...TEMPERATURES THIS HIGH COULD LEAD TO HEAT RELATED
ILLNESSES WITH PROLONGED EXPOSURE. THE ELDERLY...SMALL
CHILDREN AND PETS ARE ESPECIALLY SUSCEPTIBLE. PLAN AHEAD. HAVE
A COOL PLACE TO SHELTER FROM THE HEAT. AVOID OUTDOOR ACTIVITY
DURING THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS 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.

&&

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