FLASH FLOOD WATCH, FLOOD WATCH: 1-3 Inches Possible Sunday Evening and Overnight

Flash Flood Watch
FLOOD WATCH
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
356 AM CDT SUN MAY 6 2012

…THUNDERSTORMS MAY BRING HEAVY RAINFALL THIS EVENING AND TONIGHT…

.SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS
AFTERNOON AND THIS EVENING AHEAD OF AN APPROACHING LOW PRESSURE
SYSTEM. SHOWERS AND THUNDERSTORMS WILL LIKELY PERSIST INTO MONDAY
MORNING. A VERY MOIST AIRMASS WILL BE IN PLACE AND THE ATMOSPHERE
WILL BE SUPPORTIVE OF STORMS WHICH MAY REPEATEDLY TRACK ACROSS THE
SAME AREAS. AS A RESULT THERE IS THE POTENTIAL FOR AREAS GENERALLY
ALONG AND NORTH OF A LINE FROM STREATOR TO PEOTONE TO HEBRON TO
RECEIVE BETWEEN 1 TO POSSIBLY 3 INCHES OF RAINFALL BY MONDAY
MORNING…WHICH MAY LEAD TO FLASH FLOODING.


WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-LAKE IN-PORTER-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…WOODSTOCK…
WAUKEGAN…OREGON…DIXON…DEKALB…AURORA…WHEATON…CHICAGO…
OTTAWA…OSWEGO…MORRIS…JOLIET…GARY…VALPARAISO
356 AM CDT SUN MAY 6 2012

…FLASH FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH MONDAY
MORNING…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF ILLINOIS AND NORTHWEST
INDIANA…INCLUDING THE FOLLOWING AREAS…IN ILLINOIS…
BOONE…COOK…DE KALB…DUPAGE…GRUNDY…KANE…KENDALL…LA
SALLE…LAKE IL…LEE…MCHENRY…OGLE…WILL AND WINNEBAGO.
IN NORTHWEST INDIANA…LAKE IN AND PORTER.

* FROM THIS EVENING THROUGH MONDAY MORNING.

* SLOW MOVING THUNDERSTORMS MAY PRODUCE VERY HEAVY RAINFALL WITH
STORM TOTAL RAINFALL AMOUNTS BETWEEN 1 AND 3 INCHES POSSIBLE.

* FLOODING OF CREEKS…STREAMS…LOW LYING AREAS…ROADS…AND
URBANIZED AREAS IS POSSIBLE IF THESE RAINFALL AMOUNTS
MATERIALIZE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.


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