Flood Potential Outlook
Issued by NWS Huntsville, AL

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ALC033-043-049-059-071-077-079-083-089-095-103-TNC051-103-127-031100-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
200 PM CDT THU MAY 2 2013

...HEAVY RAINFALL LIKELY FRIDAY NIGHT THROUGH SATURDAY AFTERNOON
ACROSS THE TENNESSEE VALLEY...

A SLOW MOVING STORM SYSTEM WILL BEGIN TO AFFECT THE AREA ON FRIDAY
AND WILL CONTINUE THROUGH SATURDAY WITH THE POTENTIAL OF HEAVY RAIN.
AT THE MOMENT THE BEST TIMING OF RAIN AND A FEW THUNDERSTORMS WILL BE
BETWEEN FRIDAY NIGHT AND SATURDAY AFTERNOON. THE HEAVIEST RAINFALL IS
EXPECTED TO BE MAINLY EAST OF INTERSTATE 65 ON SATURDAY...WHERE 2 TO
4 INCHES OF RAIN IS POSSIBLE ALONG WITH LOCALIZED FLOODING. THE RAIN
WILL BEGIN TO TAPER OFF WEST OF INTERSTATE 65 BY SATURDAY AFTERNOON...
WHERE RAINFALL AMOUNTS WILL BE BETWEEN 1 AND 2 INCHES.

AREA RIVERS AND CREEKS ARE STILL HIGHER THAN NORMAL FOR THIS TIME OF
YEAR DUE TO THE 3 TO 5 INCHES OF RAIN THAT FELL LAST WEEKEND AND
EARLIER THIS WEEK. WHILE MOST TRIBUTARIES HAVE CRESTED...THE
TENNESSEE RIVER IS STILL WELL ABOVE NORMAL OPERATING LEVELS...AND
THIS ADDITIONAL RAINFALL WILL EXACERBATE FLOODING CONCERNS INTO
EARLY NEXT WEEK AT SEVERAL SITES.

RESIDENTS SHOULD MONITOR THE WEATHER SITUATION ON FRIDAY AND
SATURDAY. KNOW WHAT TO DO WHEN/IF A FLOOD WARNING IS ISSUED FOR YOUR
AREA! LOCATIONS IN LOW-LYING OR URBAN AREAS WILL LIKELY SEE IMPACTS
FIRST DURING THIS EVENT...FOLLOWED BY LOCATIONS ALONG AND NEAR
RIVERS/OTHER TRIBUTARIES THAT EVENTUALLY FEED INTO THE TENNESSEE
RIVER. SPECIFIC IMPACTS ALONG THE TENNESSEE RIVER ITSELF MAY TAKE
UNTIL SUNDAY OR MONDAY TO FULLY DEVELOP...AS RUNOFF USUALLY LAGS 12
TO 24 HOURS AFTER A HEAVY RAINFALL EVENT.

FOR ADDITIONAL HYDROLOGIC INFORMATION...VISIT OUR WEBSITE AT
HTTP://WEATHER.GOV/HUNTSVILLE /ALL LOWER CASE/.

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