NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED:
HEAVY RAINFALL...WHICH MAY LEAD TO LOCALIZED FLOODING
CLOUD TO GROUND LIGHTNING
MARBLE SIZED HAIL
DAMAGING WIND GUSTS
AREAS AFFECTED AND TIMING:
NORTHERN ILLINOIS AND NORTHWESTERN ILLINOIS...GENERALLY SOUTH OF
A STREATOR TO RENSSELAER LINE.
DISCUSSION:
A SURFACE LOW WILL DEEPEN AND LIFT THROUGH THE PLAINS LATE
TONIGHT...BRINGING A WARM FRONT THROUGH THE AREA. MODERATE
INSTABILITY WILL BE IN PLACE AND MAY LEAD TO A FEW THUNDERSTORMS
WITH A HAIL THREAT LATE TONIGHT AND INTO SUNDAY MORNING.
PORTIONS OF THE KANKAKEE RIVER IN NORTHWEST INDIANA AND THE
ILLINOIS RIVER IN LA SALLE COUNTY WILL REMAIN IN FLOOD.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
THERE WILL BE PERIODIC CHANCES FOR SHOWERS AND THUNDERSTORMS
THROUGH THE WEEKEND AND INTO THE MIDDLE OF NEXT WEEK...WITH THE
POSSIBILITY OF SEVERE WEATHER INTO TUESDAY.
PORTIONS OF THE KANKAKEE RIVER IN NORTHWEST INDIANA AND THE
ILLINOIS RIVER IN LA SALLE COUNTY WILL REMAIN IN FLOOD. IN
ADDITION...THE POTENTIAL FOR HEAVY RAINFALL OVER THE NEXT SEVERAL
DAYS MAY RESULT IN FURTHER INCREASES IN STREAM FLOWS AND MAY
INCREASE THE POSSIBILITY OF FLOODING ALONG OTHER AREA RIVERS.
.SPOTTER INFORMATION STATEMENT...
SPOTTERS MAY BE NEEDED OVERNIGHT.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
