NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED:
* THUNDERSTORMS...SOME SEVERE...WITH THE FOLLOWING:
* WIND GUSTS TO 60 MPH
* FREQUENT LIGHTNING
* PEA TO NICKEL SIZED HAIL
* HEAVY DOWNPOURS
AREAS AFFECTED AND TIMING:
* THUNDERSTORMS ARE EXPECTED ACROSS ALL OF NORTHERN ILLINOIS AND
NORTHWESTERN INDIANA TODAY. ACTIVITY SHOULD BEGIN BY LATE
MORNING ACROSS NORTHWESTERN ILLINOIS...WITH THE FOCUS SHIFTING
SOUTHEAST THROUGH THE AFTERNOON. THE STRONGEST OF STORMS ARE
EXPECTED SOUTH AND EAST OF INTERSTATE 55 THIS AFTERNOON.
DISCUSSION:
* AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE REGION
TODAY...GENERALLY SHIFTING FROM MINNESOTA...SOUTHEAST AND
ACROSS NORTHERN ILLINOIS AND NORTHWESTERN INDIANA. AT THE
SURFACE...WINDS HAVE SHIFTED TO THE SOUTH AND
SOUTHWEST...ALLOWING MUCH MORE MOISTURE TO BE AVAILABLE. WITH
THE APPROACHING DISTURBANCE AND INCREASED
INSTABILITY...THUNDERSTORMS ARE EXPECTED TO CONTINUE AND MOVE
OUT OF IOWA THIS MORNING AND INTO THE NORTHWESTERN OUTLOOK
AREA. DAYTIME HEATING WILL ALLOW AREAS SOUTH AND EAST OF
INTERSTATE 55 TO BECOME MODERATELY UNSTABLE BY THE
AFTERNOON...ALLOWING THE STRONGER OF STORMS TO DEVELOP ACROSS
THAT PORTION OF THE REGION.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
THERE IS AN INCREASED RISK FOR RIP CURRENTS ALONG THE INDIANA
SHORE OF LAKE MICHIGAN SUNDAY THROUGH MONDAY MORNING.
THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS TUESDAY THROUGH
WEDNESDAY NIGHT.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
