FLUS43 KLOT 072056
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
356 PM CDT TUE APR 7 2015
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
356 PM CDT TUE APR 7 2015
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
WEATHER HAZARDS EXPECTED:
THUNDERSTORMS...SOME MAY PRODUCE:
HEAVY RAIN WHICH COULD RESULT IN LOCALIZED FLOODING.
FREQUENT CLOUD TO GROUND LIGHTNING.
AND HAIL TO THE SIZE OF PENNIES.
AREAS AFFECTED AND TIMING:
THUNDERSTORMS WILL DEVELOP THIS EVENING AND COULD LINGER INTO
THE OVERNIGHT HOURS...THE GREATEST CHANCES OF THUNDERSTORMS
LOOKS TO BE ALONG AND NORTH OF INTERSTATE 80.
DISCUSSION:
WARM AND HUMID AIR WILL SURGE UP AND OVER THE TOP OF A STRONG
FRONT STALLED OUT OVER CENTRAL ILLINOIS AND LEAD TO THE
DEVELOPMENT OF THUNDERSTORMS TONIGHT. SEVERE WEATHER APPEARS
UNLIKELY TONIGHT BUT LOCALLY HEAVY RAINFALL IS
POSSIBLE...ESPECIALLY NEAR THE WISCONSIN BORDER.
IN ADDITION...AREAS OF DENSE FOG ARE LIKELY.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
SOME DENSE FOG IS POSSIBLE WEDNESDAY MORNING...POSSIBLY LINGERING
INTO THE AFTERNOON NEAR THE LAKE.
THUNDERSTORMS ARE LIKELY WEDNESDAY NIGHT AND COULD LINGER INTO
THURSDAY MORNING. SOME OF THESE STORMS COULD PRODUCE VERY HEAVY
RAIN AND POSSIBLY SOME HAIL.
THE THREAT EXISTS FOR AN OUTBREAK OF SEVERE
THUNDERSTORMS...INCLUDING THE POTENTIAL FOR TORNADOES...LATE
THURSDAY AFTERNOON INTO THURSDAY EVENING. ALL OF THE INGREDIENTS
NEED TO COME TOGETHER JUST RIGHT FOR A SIGNIFICANT SEVERE WEATHER
OUTBREAK...AND IF EVEN JUST ONE INGREDIENT FAILS TO MATERIALIZE
THE THREAT DECREASES SUBSTANTIALLY. EARLY INDICATIONS ARE THAT
MANY OF THE INGREDIENTS FOR A SIGNIFICANT OUTBREAK OF SEVERE
THUNDERSTORMS COULD BE IN PLACE THURSDAY AND LATER FORECASTS
AND OUTLOOKS SHOULD BE CLOSELY MONITORED.
THERE IS A CHANCE OF SHOWERS AND THUNDERSTORMS AGAIN BY SUNDAY
NIGHT AND MONDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT...BUT
SPOTTERS SHOULD CONTINUE TO MONITOR LATER FORECASTS FOR THE
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT TIME PERIOD.
&&
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