NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED:
THUNDERSTORMS...SOME OF WHICH COULD PRODUCE:
DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
HAIL TO ONE INCH.
LOCALLY HEAVY DOWNPOURS.
AREAS AFFECTED AND TIMING:
SCATTERED THUNDERSTORMS WILL BE POSSIBLE THIS MORNING ALONG AND
NORTH OF A LINE FROM OREGON TO WAUKEGAN...AND LIKELY ACROSS THE
ENTIRE AREA THIS AFTERNOON AND TONIGHT.
DISCUSSION:
AS SEVERAL MID LEVEL DISTURBANCES MOVE ACROSS THE
REGION...SCATTERED THUNDERSTORMS WILL CONTINUE TO MOVE THROUGH
AREAS ALONG AND NORTH OF EXTREME NORTHERN ILLINOIS THIS MORNING.
ALTHOUGH THERE IS THE POSSIBILITY FOR SOUTHWARD
DEVELOPMENT...THE MAIN THUNDERSTORM DEVELOPMENT SHOULD CONTINUE
TO REMAIN JUST NORTH OF THE AREA THIS MORNING. ITS NOT UNTIL
LARGE SCALE SUPPORT APPROACHES FROM THE NORTHWEST AND A SURFACE
COLD FRONT PUSHES EAST THROUGH THE REGION THAT THUNDERSTORMS
WILL REALLY BEGIN TO INCREASE. THIS INCREASED LIKELIHOOD OF
THUNDERSTORMS WILL COME LATER THIS AFTERNOON INTO TONIGHT WHEN
INSTABILITY AND UPPER LEVEL FLOW INCREASES...WITH THUNDERSTORMS
FORECAST TO MOVE SOUTHEAST ACROSS THE REGION AFFECTING THE
ENTIRE AREA INTO THE OVERNIGHT HOURS.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
RIP CURRENTS ARE LIKELY SUNDAY MORNING THROUGH TUESDAY ALONG BOTH
THE ILLINOIS AND INDIANA SHORES OF LAKE MICHIGAN.
.SPOTTER INFORMATION STATEMENT...
SPOTTERS WILL LIKELY BE NEEDED THIS AFTERNOON AND TONIGHT.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
