NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
WEATHER HAZARDS EXPECTED:
ISOLATED THUNDERSTORMS...SOME MAY PRODUCE:
BRIEF HEAVY DOWNPOURS.
CLOUD TO GROUND LIGHTNING.
PEA SIZED HAIL.
WIND GUSTS IN EXCESS OF 35 MPH.
AREAS AFFECTED AND TIMING:
THE ENTIRE OUTLOOK AREA LATE THIS AFTERNOON THROUGH THE EARLY
EVENING...THEN AREAS WEST OF A LINE FROM CRYSTAL LAKE TO WATSEKA
ILLINOIS LATE TONIGHT INTO EARLY MONDAY MORNING.
DISCUSSION:
ISOLATED THUNDERSTORM DEVELOPMENT WILL CONTINUE LATE THIS
AFTERNOON AS A WEAK MID LEVEL WAVE PUSHES EAST ACROSS THE REGION
AND A MODERATELY UNSTABLE ATMOSPHERE REMAINS IN PLACE...BEFORE
DIMINISHING EARLY THIS EVENING. AS MID LEVEL FLOW REMAINS FAIRLY
WEAK...ANY THUNDERSTORM DEVELOPMENT SHOULD CONSIST OF PULSE TYPE
DEVELOPMENT KEEPING ANY ACTIVITY BRIEF IN NATURE. ANOTHER UPPER
LEVEL DISTURBANCE WILL APPROACH FROM THE WEST LATE TONIGHT
INTO EARLY MONDAY MORNING HELPING TO PROVIDE RENEWED CHANCES FOR
THUNDERSTORMS
PORTIONS OF THE KANKAKEE RIVER IN NORTHWEST INDIANA WILL REMAIN
IN FLOOD.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THERE WILL BE PERIODIC CHANCES FOR SHOWERS AND THUNDERSTORMS
INTO THE MIDDLE PART OF THE WEEK. ALTHOUGH THERE REMAINS SOME
UNCERTAINTY WITH THE EXACT FORECAST ON MONDAY...THERE IS A
POSSIBILITY OF SEVERE WEATHER MONDAY MORNING AND ONCE AGAIN LATER
IN THE AFTERNOON AND EVENING. THEN AS A STRONG UPPER LEVEL SYSTEM
CONTINUES TO MOVE ACROSS THE REGION ON TUESDAY...SEVERE WEATHER
WILL ONCE AGAIN BE POSSIBLE.
PORTIONS OF THE KANKAKEE RIVER IN NORTHWEST INDIANA WILL REMAIN
IN FLOOD.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
