SEVERE THUNDERSTORM WATCH

SEVERE THUNDERSTORM WATCH EFFECTIVE UNTIL 4PM


WARNINGS & ADVISORIES FOR ILLINOIS


SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 394
NWS STORM PREDICTION CENTER NORMAN OK
855 AM CDT SUN MAY 29 2011

SEVERE THUNDERSTORM WATCH 394 IS IN EFFECT UNTIL 400 PM CDT
FOR THE FOLLOWING LOCATIONS

THE ILLINOIS COUNTIES INCLUDED ARE

BOONE                BUREAU              CARROLL
COOK                 DE KALB             DUPAGE
FORD                 FULTON              GRUNDY
HANCOCK              HENDERSON           HENRY
IROQUOIS             JO DAVIESS          KANE
KANKAKEE             KENDALL             KNOX
LAKE                 LA SALLE            LEE
LIVINGSTON           MARSHALL            MCDONOUGH
MCHENRY              MCLEAN              MERCER
OGLE                 PEORIA              PUTNAM
ROCK ISLAND          STARK               STEPHENSON
TAZEWELL             WARREN              WHITESIDE
WILL                 WINNEBAGO           WOODFORD
$$




Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
518 AM CDT SUN MAY 29 2011

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
301030-
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
518 AM CDT SUN MAY 29 2011 /618 AM EDT SUN MAY 29 2011/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  THUNDERSTORMS...THE STRONGEST MAY PRODUCE:

    DAMAGING WINDS IN EXCESS OF 70 MPH.
    LOCALLY HEAVY RAINFALL...WHICH COULD RESULT IN FLOODING.

  AREAS AFFECTED AND TIMING:

   THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE WESTERN PORTIONS OF
   THE OUTLOOK AREA LATER THIS MORNING AND TRACK EASTWARD THROUGH
   THE LATE MORNING AND AFTERNOON.

  DISCUSSION:

   THUNDERSTORMS MAY DEVELOP INTO AN ORGANIZED SOLID LINE WITH THE
   POTENTIAL TO PRODUCE STRONG DAMAGING WINDS. ALSO...WITH
   INCREASING DEEP LAYER MOISTURE...LOCALLY HEAVY RAINFALL IS
   POSSIBLE WITH THESE STORMS.

PORTIONS OF THE KANKAKEE AND ILLINOIS RIVERS WILL REMAIN IN
FLOOD...WITH ELEVATED STREAM FLOW ON MANY OTHER RIVERS AND
STREAMS. LOCALLY HEAVY RAINFALL TODAY AND TONIGHT WILL LIKELY
LEAD TO ADDITIONAL RISES ON AREA RIVERS AND STREAMS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE WARMEST WEATHER OF THE SPRING IS EXPECTED ON MONDAY WITH
TEMPERATURES CLIMBING INTO THE LOW 90S ACROSS MUCH OF THE AREA.
THE HEAT WILL BE ACCOMPANIED BY INCREASING HUMIDITY...LEADING TO
HEAT INDEX VALUES IN THE MIDDLE OR UPPER 90S.

THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS AGAIN BY THE
MIDDLE AND END OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO