Regional Weather Summary
Issued by NWS Chicago, IL

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
000
AWUS83 KLOT 042248
RWSLOT
ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
050700-

WEATHER SUMMARY FOR NORTHERN ILLINOIS AND NORTHWEST INDIANA
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
548 PM CDT MON MAY 4 2015

SKIES WERE VARIABLY CLOUDY LATE MONDAY AFTERNOON...WITH A LAKE
ENHANCED COLD FRONT BOUNDARY PROGRESSING WELL INLAND. MUCH OF THE
AFTERNOON WAS DRY EXCEPT FOR SCATTERED THUNDERSTORMS IN BENTON
COUNTY INDIANA. HIGH TEMPERATURES FOR MOST OF THE AREA REACHED THE
70S...EXCEPT UPPER 60S NEAR THE FAR NORTHEAST ILLINOIS SHORE.
TEMPERATURES COOLED INTO THE 50S AND 60S BEHIND THE FRONT NEAR THE
LAKEFRONT. LOWS BY EARLY TUESDAY WILL RANGE FROM THE MID 50S TO
AROUND 60 SOUTH OF INTERSTATE 80 AND MID 40S TO MID 50S NORTH OF
INTERSTATE 80...COOLEST NEAR THE LAKE IN NORTHEAST ILLINOIS.

THE FRONT WILL STALL OUT SOUTH OF INTERSTATE 80 MONDAY
NIGHT...WITH THE FRONT AND UPPER LEVEL DISTURBANCES SERVING AS A
FOCUS FOR SHOWERS AND EMBEDDED THUNDERSTORMS LATE MONDAY NIGHT
INTO TUESDAY MORNING. A FEW ADDITIONAL ROUNDS OF SHOWERS AND
THUNDERSTORMS ARE POSSIBLE THE REMAINDER OF TUESDAY. THERE WILL BE
A SHARP TEMPERATURE DIFFERENCE NORTH AND SOUTH OF THE FRONT. HIGHS
WILL RANGE FROM THE LOW 70S TO AROUND 80 SOUTH OF A DIXON TO
VALPARAISO LINE AND MID 50S TO UPPER 60S NORTH OF THAT
LINE...COOLEST ALONG THE ILLINOIS SHORE. THE FRONT WILL LIFT BACK
NORTH AS A WARM FRONT ON WEDNESDAY...WITH HIGHS FROM THE MID 70S
TO MID 80S...EXCEPT 60S ALONG THE ILLINOIS SHORE DUE TO SOUTHEAST
WINDS. A FEW ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE.

$$

RC


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.