FLASH FLOOD WATCH
Warning Issue Date: 443 AM CST THU DEC 17 2009
...FLASH FLOOD WATCH REMAINS IN EFFECT FROM NOON CST TODAY
THROUGH LATE TONIGHT...
THE FLASH FLOOD WATCH CONTINUES FOR
* PORTIONS OF SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI...
INCLUDING THE FOLLOWING AREAS...IN SOUTHEAST LOUISIANA...
ASSUMPTION...LOWER JEFFERSON...LOWER LAFOURCHE...LOWER
PLAQUEMINES...LOWER ST. BERNARD...LOWER TERREBONNE...ORLEANS...
ST. CHARLES...ST. JAMES...ST. JOHN THE BAPTIST...ST. TAMMANY...
UPPER JEFFERSON...UPPER LAFOURCHE...UPPER PLAQUEMINES...UPPER
ST. BERNARD AND UPPER TERREBONNE. IN SOUTHERN MISSISSIPPI...
HANCOCK...HARRISON AND JACKSON.
* FROM NOON CST TODAY THROUGH LATE TONIGHT
* A STEADY RAIN AND NUMEROUS SHOWERS ARE EXPECTED...STARTING LATE
THIS MORNING AND CONTINUING THROUGH MUCH OF TONIGHT BEFORE
ENDING FROM THE WEST LATE TONIGHT AND EARLY TOMORROW MORNING.
LOCALLY HEAVY RAIN SHOWERS AND THUNDERSTORMS ARE
EXPECTED...MAINLY SOUTH OF A LINE FROM NAPOLEONVILLE TO SLIDELL
TO ESCATAWPA. GENERAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE
EXPECTED WITH LOCALLY HEAVIER AMOUNTS OF 3 TO 4 INCHES POSSIBLE.
DUE TO EXISTING STANDING WATER ON SATURATED SOILS...ANY HEAVY
RAIN OR LONGER DURATION MODERATE RAIN WILL QUICKLY POND IN LOW
LYING AREAS... AND POSSIBLY LEAD TO FLASH FLOODING.
* MANY AREA RIVERS AND BAYOUS ARE RUNNING NEAR OR ABOVE FLOOD
LEVELS...AND ADDITIONAL RAINFALL COULD RESULT IN ADDITIONAL
RIVER RISES AND RENEWED FLOODING OF DRAINAGE CANALS...SMALL
STREAMS...AND POSSIBLY URBAN AREAS.
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 THURSDAY. IN THE MEANTIME...
ENSURE DRAINAGE CATCH BASINS ARE CLEARED OF DEBRIS BEFORE RAINS
BEGIN.
$$
CAB
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