931 
FXUS64 KHUN 031449 AAB
AFDHUN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
949 AM CDT THU OCT 3 2013

.UPDATE...
FOR MINOR TEMPERATURE, DEWPOINT, AND FORECAST SHOWER ACTIVITY
ADJUSTMENTS.

&&

.DISCUSSION...

PATCHY FOG THAT DEVELOPED EARLIER THIS MORNING HAS LARGELY DISSIPATED
WITH MOSTLY SUNNY AND PARTLY CLOUDY CONDITIONS PREVAILING.

WEAK LIFT ASSOCIATED WITH THE EXITING WEAK MID-LEVEL LOW HAS MOVED
OFF TO THE EAST WHILE AN ADDITIONAL WEAK SHORTWAVE TROUGH MOVES FROM
THE CENTRAL PLAINS OVER THE MID MS RIVER VALLEY. CURRENT SAT/RADAR
IMAGERY INDICATES THAT THERE ARE SHOWERS DEVELOPING OVER AR WITH A
DECK OF LOW CLOUDS (WHERE DEWPOINTS RESIDE AROUND 70-75 DEGREES) OVER
MS.

THE MAIN SENSIBLE IMPACTS FROM THIS PASSING WEAK SHORTWAVE IS THE
DEVELOPMENT OF ISOLATED SHOWER ACTIVITY MAINLY OVER NW AL. THUS,
HAVE REDUCED THE SPATIAL COVERAGE OF THE SHOWERS IN THE FORECAST.
DAYTIME HEATING AND MIXING PROCESSES SHOULD KEEP PARTLY CLOUDY
CONDITIONS TO DEVELOP LATER THIS MORNING AND AFTERNOON (RATHER THAN
MOSTLY CLOUDY) AS A LOW DECK OF CLOUDS CURRENTLY TRACKING ACROSS
CENTRAL AL/MS MOVES NORTH.

TEMPERATURES ARE ALREADY RISING INTO THE LOW TO MID 70S AS OF 9AM AND
EXPECTING THE DAYTIME HIGHS TO RISE INTO THE 80S AREAWIDE (WITH THE
EXCEPTION OF HIGHER ELEVATIONS). OTHERWISE, DEWPOINT TEMPERATURES
NEEDED ONLY MINOR ADJUSTMENTS.

SL.77

&&

.AVIATION...
/ISSUED 715 AM CDT THU OCT 3 2013/
FOR 12Z TAFS...FG/BR WILL CONTINUE TO IMPACT MSL WITH IFR VSBY FOR
THE INITIAL 2 HRS OF THE TAF PERIOD...AND HAVE INCLUDE THIS WITH
TEMPO GROUP. OTHERWISE...EXPECT VFR CONDS AT BOTH MSL/HSV THRU LATE
THIS EVENING...WITH FEW/SCT CU AND AC. A BANK OF LOWER STRATUS CLOUDS
CURRENTLY PUSHING NWD FROM WEST CENTRAL ALABAMA WILL NEED TO BE
MONITORED...BUT MUCH OF THIS CLOUD COVER WILL LIFT/SCATTER BEFORE
REACHING THE TERMINALS. AS LOW-LEVEL MOISTURE GRADUALLY INCREASES...A
COMBINATION OF STRATUS AND FOG WILL DEVELOP ONCE AGAIN LATE THIS
EVENING WITH MVFR CIG AND/OR VSBY PSBL AFTER 04/05Z. SFC WINDS WILL
REMAIN FROM THE SE AT 3-7 KNOTS THRU THE TAF PERIOD.

70/DD

&&

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

$$ 

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