FLASH FLOOD WATCH
Warning Issue Date: 330 PM CST TUE DEC 01 2009
...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY
MORNING...
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...JACKSON AND PEARL RIVER.
* THROUGH WEDNESDAY MORNING
* A LOW PRESSURE SYSTEM STRENGTHENING ALONG A STALLED FRONT IN THE
WESTERN GULF OF MEXICO WILL MOVE INTO SOUTHEAST LOUISIANA AND
SOUTHERN MISSISSIPPI TONIGHT. WIDESPREAD STEADY MODERATE TO
OCCASIONALLY HEAVY RAINFALL IS EXPECTED WITH THE PASSAGE OF THIS
SYSTEM THROUGH WEDNESDAY MORNING.
* RAINFALL ACCUMULATIONS GENERALLY BETWEEN 2 TO 4 INCHES ARE
EXPECTED ACROSS THE WATCH AREA FROM THIS EVENING THROUGH
WEDNESDAY MORNING. A BAND OF HIGHER AMOUNTS BETWEEN 4 AND 6
INCHES MAY DEVELOP MAINLY OVER THE MISSISSIPPI COASTAL
COUNTIES AND LOWER SOUTHEAST LOUISIANA BY WEDNESDAY MORNING.
RUN OFF WILL CAUSE AREA RIVERS AND STREAMS TO SWELL TO HIGHER
LEVELS AND POSSIBLY CAUSE A FEW TO FLOOD INTO THE MIDDLE OF
THE WEEK. IN ADDITION...ANTICIPATED STRONG ONSHORE FLOW
TONIGHT MAY COMPOUND RIVER RISES DUE TO TIDAL AFFECTS UNTIL
WINDS SHIFT TO AN OFFSHORE DIRECTION.
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.
$$
COASTAL FLOOD ADVISORY
Warning Issue Date: 912 PM CST MON NOV 30 2009
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
WEDNESDAY...
MINOR COASTAL FLOODING WILL DEVELOP AROUND THE TIME OF HIGH TIDE
OUTSIDE OF HURRICANE PROTECTION LEVEES NEAR THE COAST... AND
POSSIBLY ALONG THE NORTH SHORE OF LAKE PONTCHARTRAIN. HIGH TIDES
WILL OCCUR THIS EVENING AROUND ATCHAFALAYA BAY...AND DURING THE
LATE EVENING HOURS TO JUST AFTER MIDNIGHT ACROSS THE REMAINDER OF
THE COASTLINE AND ACROSS LAKE PONTCHARTRAIN. FALLING ASTRONOMICAL
TIDES AND THEN MORE WESTERLY SURFACE WINDS WILL CAUSE WATER LEVELS
TO DROP BELOW FLOOD LEVELS BETWEEN 3 AND 6 AM TONIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.
$$
CAB
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