Regional Weather Summary
Issued by NWS Chicago, IL

Home | Current Version | Previous Version | Graphics & Text | 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
000
AWUS83 KLOT 220001
RWSLOT
ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
221215-

WEATHER SUMMARY FOR NORTHERN ILLINOIS AND NORTHWEST INDIANA
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
701 PM CDT THU AUG 21 2014 /801 PM EDT THU AUG 21 2014/

PERIODS OF SHOWERS AND THUNDERSTORMS OCCURRED ON THURSDAY DUE TO
UPPER LEVEL DISTURBANCES AND A VERY MOIST AIR MASS ALONG A WARM
FRONT. SOME AREAS SAW VERY HEAVY RAINFALL AND THERE WERE A FEW
STRONG TO SEVERE THUNDERSTORMS IN THE LATE AFTERNOON THAT PRODUCED
WIND GUSTS IN EXCESS OF 60 MPH. HIGH TEMPERATURES WERE IN THE MID
AND UPPER 80S SOUTH OF INTERSTATE 80 AND UPPER 70S AND LOWER 80S
NORTH OF INTERSTATE 80 DUE TO CLOUDS AND SHOWERS. A LAKE BREEZE
MOVED INLAND IN NORTHEAST ILLINOIS DURING THE AFTERNOON. AFTER A
RELATIVE BREAK DURING THURSDAY EVENING WITH JUST ISOLATED TO
SCATTERED SHOWERS AND POSSIBLY A FEW STORMS...MORE WIDESPREAD
SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVERNIGHT INTO
EARLY FRIDAY. PERIODS OF HEAVY RAINFALL AND LOCALIZED FLOODING
ARE POSSIBLE.

A FEW ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL REMAIN
POSSIBLE THE REST OF FRIDAY. HIGHS INLAND WIL BE IN THE UPPER 80S
AND LOWER 90S...WITH MID AND UPPER 80S NEAR THE LAKE DUE TO A LAKE
BREEZE IN THE AFTERNOON. HEAT INDEX VALUES AWAY FROM THE LAKE WILL
RANGE FROM 95 TO 105 DEGREES. THE HEAT AND HUMIDITY WILL CONTINUE
THROUGH THE WEEKEND INTO EARLY NEXT WEEK...THOUGH ONSHORE WINDS
WILL KEEP THE ENTIRE LAKEFRONT SLIGHTLY COOLER ON SATURDAY AND THE
ILLINOIS SHORE A BIT COOLER SUNDAY THROUGH TUESDAY. THERE WILL BE
PERIODIC CHANCES FOR SHOWERS AND THUNDERSTORMS...MAINLY ON
SATURDAY AND THEN MONDAY AND TUESDAY...WITH PRIMARILY DRY
CONDITIONS EXPECTED ON SUNDAY.

$$

RC

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO






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