Area Forecast Discussion
Issued by NWS Huntsville, AL

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000
FXUS64 KHUN 031529 AAA
AFDHUN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1029 AM CDT MON AUG 3 2015

.UPDATE...TO LOWER HIGH TEMPERATURES SLIGHTLY AND INCREASE CLOUD
COVER.

&&

.DISCUSSION...
HIGH PRESSURE REMAINS IN CONTROL OF THE WEATHER OVER NORTHERN ALABAMA
AND SOUTHERN MIDDLE TENNESSEE. WEAK CONVERGENCE BOUNDARIES EXTEND SW
FROM A FRONTAL BOUNDARY OVER THE OHIO VALLEY. ONE EXTENDS FROM
CENTRAL VIRGINIA INTO NE GEORGIA. ANOTHER EXTENDS FROM INDIANA SOUTH
INTO EXTREME WESTERN TN. SOME MODELS PRODUCE SOME ISOLATED CONVECTION
OVER WESTERN TN AND GEORGIA VIA THESE BOUNDARIES. HOWEVER...OVER THE
NORTHERN ALABAMA AND OUR TENNESSEE COUNTIES...THE ATMOSPHERIC COLUMN
LOOKS TOO DRY FOR ANY CONVECTIVE DEVELOPMENT. THE BOUNDARY THAT
EXTENDS INTO WESTERN TN WILL LIKELY RAISE SURFACE DEWPOINTS AS THE
DAYS GOES ON IN NW AL AND SOUTHERN MIDDLE TN IN THE MID TO UPPER 60S.
SOUTHEAST OF THESE AREAS...DEWPOINTS WILL LIKELY MIX OUT INTO THE MID
TO UPPER 50S...DUE TO DRY AIR ALOFT.

A SCATTERED CUMULUS DECK SHOULD DEVELOP IN NW ALABAMA AND SOUTHERN
MIDDLE TN AS WELL...DUE TO SLIGHT CONVERGENCE AND MOISTURE POOLING
AHEAD OF THE BOUNDARY OVER NW TN. THIS SHOULD PRODUCE PARTLY CLOUDY
CONDITIONS OVER THOSE AREAS THIS AFTERNOON.

KTW

&&

.AVIATION...
/ISSUED 619 AM CDT MON AUG 3 2015/
FOR 12Z TAFS... VFR CONDS ARE EXPECTED DURING THE NEXT 24 HOURS WITH
VSBYS ABV 6SM AND LIGHT NWLY FLOW.

AK

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...NONE.
TN...NONE.
&&

$$

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE
AT WEATHER.GOV/HUNTSVILLE.


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