Area Forecast Discussion
Issued by NWS Huntsville, AL

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FXUS64 KHUN 310512
AFDHUN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1212 AM CDT FRI OCT 31 2014

.UPDATE...
FOR 06Z TAFS

&&

.DISCUSSION...
/ISSUED 931 PM CDT THU OCT 30 2014/
A MID-LEVEL SHORTWAVE TROUGH MOVING AHEAD OF THE PRIMARY MID-LEVEL
SHORTWAVE TROUGH/STRONG COLD FRONT (EXPECTED TOMORROW) IS BRINGING
MID-HIGH LEVEL CLOUDS TONIGHT. AS A RESULT, HAVE ADJUSTED THE SKY
COVER FORECAST TO INCREASE CLOUDS FROM WEST TO EAST ACROSS THE
TN VALLEY. IN ADDITION, TEMPERATURES HAVE BEEN COOLING OFF A LITTLE
MORE RAPIDLY THAN ORIGINALLY FORECAST WITH A SLIGHT INVERSION NOTED
ON FORECAST SOUNDINGS OVER THE CUMBERLAND PLATEAU. THOUGH THE CLOUD
COVER IS ANTICIPATED, IT WILL LIKELY ONLY SLIGHTLY MITIGATE THE
COOLING TONIGHT.

CURRENT RADAR IMAGERY DOES INDICATE VIRGA OVER CENTRAL TN/NE MS AND
WITH THE DRY PROFILE FROM THE SFC TO THE MID-LEVELS OF THE
ATMOSPHERE, EXPECTING MOST OF THIS TO EVAPORATE BEFORE HITTING THE
GROUND. THEREFORE, HAVE LEFT THE FORECAST DRY FOR TONIGHT.

OTHERWISE, MADE MINOR ADJUSTMENTS TO THE DEWPOINT FORECAST TO ACCOUNT
FOR THE CURRENT TRENDS AND SLIGHTLY LOWER DEWPOINTS EXPECTED BY
MORNING.

SL.77

&&

.AVIATION...
FOR 06Z TAFS...

MID LEVEL CLOUDS WILL CONTINUE TO MOVE ACROSS THE FORECAST TERMINALS
DURING THE OVERNIGHT PERIOD...AS AN MID LEVEL DISTURBANCE MOVES
ACROSS THE AREA...AHEAD OF AN APPROACHING COLD FRONT. DUE TO THE
ISOLATED NATURE OF THE LIGHT RAIN ACTIVITY HAVE DECIDED TO LEAVE OUT
OF TAFS AS OF NOW. GENERALLY VFR CLOUD COVER WILL PREVAIL THROUGH
MUCH OF THE DAY ON FRIDAY. CALM WINDS WILL BECOME NORTHERLY DURING
THE LATE MORNING HOURS AS THE COLD FRONT MOVES ACROSS THE AREA.
STRONG WINDS (15G25KTS) ARE POSSIBLE BEHIND THE FRONT BTWN 19-01Z
BEFORE WINDS RELAX TO 10 KTS.

73

&&

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

$$

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



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