NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
WEATHER HAZARDS EXPECTED:
THUNDERSTORMS...A FEW WHICH COULD PRODUCE:
DAMAGING WIND GUSTS TO 60 MPH.
LOCALLY HEAVY RAINFALL.
AREAS AFFECTED AND TIMING:
NORTH OF U.S. 34 EARLY THIS EVENING...THEN ACROSS NORTH CENTRAL
AND NORTHEAST ILLINOIS...AND NORTHWEST INDIANA OVERNIGHT. THERE
IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS NORTH AND WEST OF
I-57 OVERNIGHT.
DISCUSSION:
AS A MID LEVEL DISTURBANCE CONTINUES MOVING EAST ACROSS SOUTHERN
WISCONSIN THERE WILL BE ISOLATED THUNDERSTORMS IN NORTH CENTRAL
AND NORTHEAST EARLY THIS EVENING. INSTABILITY DECREASES AND
INHIBITION INCREASES WEST TO EAST ACROSS THE REGION. THIS WILL
RESULT IN THUNDERSTORMS WEAKENING AS THEY MOVE INTO NORTHEAST
ILLINOIS.
A STRONGER MID LEVEL WAVE WILL MOVE EAST-SOUTHEAST FROM THE
DAKOTAS TO SOUTHWEST WISCONSIN BY MONDAY MORNING. THUNDERSTORMS
ASSOCIATED WITH THIS WAVE ARE EXPECTED TO MOVE EAST-SOUTHEAST
OVERNIGHT AND MAY REACH NORTH CENTRAL AND NORTHEAST ILLINOIS BY
DAYBREAK. A FEW OF THESE STORMS MAY PRODUCE DAMAGING WINDS.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THE HEAT INDEX MAY APPROACH 105 DEGREES...THE DANGER
LEVEL...MONDAY AFTERNOON ALONG AND SOUTH OF U.S. 6.
THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS MONDAY THROUGH
THE END OF THE WEEK. THERE IS A SLIGHT RISK OF SEVERE WEATHER
MONDAY AND TUESDAY ACROSS NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
