WGUS63 KLOT 092042
FFALOT
FLOOD WATCH
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
342 PM CDT TUE SEP 9 2014
...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY AFTERNOON...
/O.CON.KLOT.FF.A.0004.140910T0600Z-140910T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-LIVINGSTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...PONTIAC
342 PM CDT TUE SEP 9 2014
...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT WEDNESDAY
THROUGH WEDNESDAY AFTERNOON...
THE FLASH FLOOD WATCH CONTINUES FOR
* PORTIONS OF CENTRAL ILLINOIS...NORTH CENTRAL ILLINOIS AND
NORTHEAST ILLINOIS...INCLUDING THE FOLLOWING COUNTIES...IN
CENTRAL ILLINOIS...LIVINGSTON. IN NORTH CENTRAL ILLINOIS...
BOONE...DE KALB...LA SALLE...LEE...OGLE AND WINNEBAGO. IN
NORTHEAST ILLINOIS...COOK...DUPAGE...GRUNDY...KANE...KENDALL...
LAKE IL...MCHENRY AND WILL.
* FROM 1 AM CDT WEDNESDAY THROUGH WEDNESDAY AFTERNOON.
* DEEPENING LOW PRESSURE OVER THE CENTRAL PLAINS COMBINED WITH
HIGH PRESSURE MOVING OFF THE EAST COAST IS LEADING TO AN
INCREASE IN LOW LEVEL MOISTURE ACROSS THE MIDWEST. ALSO...THE
REMNANTS OF A EAST PACIFIC TROPICAL SYSTEM IS BRINGING AN
INCREASE IN MID LAYER MOISTURE. THE COMBINATION OF THESE TWO
ELEMENTS WILL SET UP A VERY MOIST ENVIRONMENT THROUGH A DEEP
LAYER OF THE ATMOSPHERE. AS THE LOW TRACKS TO THE NORTHEAST
THROUGH THE MIDDLE MISSISSIPPI VALLEY TONIGHT IT WILL DRAG A
STRONG COLD FRONT ACROSS THE PLAINS. COPIOUS AMOUNTS OF DEEP
LAYER MOISTURE WILL POOL ALONG AND AHEAD OF THE FRONT. EXPECT
2.0 TO 2.5 INCHES OF AREAL AVERAGE RAINFALL AS THE SYSTEM
CROSSES THE REGION. WITH INDIVIDUAL STORMS TRACKING TO THE
NORTHEAST AS THE LARGER SCALE SYSTEM PROGRESSES TO THE EAST...
THERE SHOULD BE SOME TRAINING AND REDEVELOPMENT OF THUNDERSTORMS
WHICH COULD LEAD TO LOCALLY HIGHER AMOUNTS OF 3 TO 5 INCHES IN
SOME AREAS.
* FLASH FLOODING MAY CAUSE ROADS TO BE CLOSED AND IMPASSIBLE AND
CAUSE RISES ON AREA RIVERS.
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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