HYDROLOGIC OUTLOOK
Warning Issue Date: 154 PM CST MON NOV 30 2009
FLOOD POTENTIAL OUTLOOK...
A STRONG STORM IS EXPECTED TO DEVELOP IN THE NORTH CENTRAL GULF OF
MEXICO TUESDAY AFTERNOON AND BEGIN SPREADING ABUNDANT MOISTURE INTO
THE AREA TUESDAY NIGHT AND WEDNESDAY. OF PRIMARY CONCERN...A
WIDESPREAD 12 HOUR RAINFALL AMOUNT OF 2 TO 4 INCHES WILL BE
POSSIBLE OVER AREAS EAST OF INTERSTATE 65 AND SOUTH OF INTERSTATE
20.
CURRENT FLASH FLOOD ANALYSIS INDICATES A LOW TO MODERATE RISK FOR
FLASH FLOODING ACROSS THE EASTERN AND SOUTHEASTERN COUNTIES OF
CENTRAL ALABAMA AT THIS TIME. GENERALLY...RAINFALL AMOUNTS OF 2 TO 3
INCHES IN A ONE HOUR TIME PERIOD WILL BE NEEDED TO CREATE FLASH
FLOOD CONDITIONS IN THESE AREAS...WITH 6 HOUR TOTALS OF 3 TO 4
INCHES NEEDED TO PRODUCE SIMILAR FLASH FLOOD CONDITIONS.
RIVER FLOODING...A WIDESPREAD RAIN EVENT OF 2.50 TO 3 INCHES OVER A
12 HOUR PERIOD WOULD CAUSE RISES ON AREA RIVERS WITH SOME MINOR
FLOODING POSSIBLE ALONG THE ALABAMA AND TALLAPOOSA RIVERS. HIGHER
RAINFALL TOTALS COULD LEAD TO MORE SUBSTANTIAL FLOODING.
AS WITH ANY DEVELOPING STORM SYSTEM...ADJUSTMENTS TO TIMING AND
PLACEMENT OF THE HIGHER RAINFALL AMOUNTS MAY BE NEEDED WITH FUTURE
FORECASTS.
STAY TUNED FOR ADDITIONAL DETAILS AS WE APPROACH THIS POTENTIALLY
HAZARDOUS SITUATION.
FOR DETAILED WEB INFORMATION CONCERNING RIVER STAGES AND FORECASTS
FOR CENTRAL ALABAMA...GO TO:
WWW.SRH.NOAA.GOV/CGI-BIN/AHPS.CGI?BMX
FOR PRECIPITATION ANALYSIS...GO TO:
WWW.SRH.NOAA.GOV/SERFC/QPFVSMAP.SHTML
FOR FORECAST PRECIPITATION...GO TO:
WWW.SRH.NOAA.GOV/SERFC/QPFPAGE.HTML
$$
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