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000
FXUS64 KHUN 070153 AAB
AFDHUN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
753 PM CST FRI DEC 6 2013

.UPDATE...
ADJUSTED POPS/WX/QPF/HOURLY TEMPS TONIGHT AND REMOVED THUNDER.

&&

.DISCUSSION...
SFC COLD FRONT NOW EXTENDS FROM SW ALABAMA TO NW GEORGIA WITH A SHARP
THERMAL GRADIENT NOTED ON EITHER SIDE OF THE BOUNDARY -- LWR TO MID
70S AHEAD OF IT QUICKLY FALLING TO THE UPR 40S/LWR 50S BEHIND. COLDER
AIR HAS PRETTY MUCH SWEPT ACROSS ALL OF N AL/SRN TN...WITH 02Z TEMPS
RANGING FROM AROUND 34F IN SEVERAL LOCATIONS TO 43F AROUND FT PAYNE
/NE AL/.

LATEST SATELLITE AND RADAR SHOWING AREA OF DEEPER MOISTURE/CONVECTION
PUSHING EAST ACROSS NORTH GEORGIA/EASTERN TENNESSEE AT THIS TIME.
BACK EDGE OF MAIN PRECIP FROM ABOUT SCOTTSBORO TO ALBERTVILLE WILL
EXIT NE ALABAMA BETWEEN 8-830PM. THEREAFTER...LITTLE IF ANY
ADDITIONAL PRECIP IS EXPECTED...WHICH IS GOOD NEWS CONSIDERING THE
COLDER AIR /SUB-FREEZING TEMPS/ EXPECTED TO FILTER ACROSS THE AREA BY
DAYBREAK. PATCHY VERY LIGHT RAIN OR DRIZZLE CAN BE EXPECTED FROM LATE
THIS EVENING THROUGH OVERNIGHT. CERTAINLY WILL CONTINUE TO WATCH
AREAS THAT DROP AT OR BELOW 32F FOR SOME VERY LIGHT -FZRA OR FZDZ
MAINLY BEFORE MIDNIGHT AND ACROSS EXTREME NW AL/SRN MIDDLE TN. DO NOT
EXPECT ANY TRAVEL PROBLEMS DUE TO ICE HOWEVER ACROSS OUR CWFA THIS
EVENING. TOWARD DAYBREAK...PATCHY BLACK ICE COULD BECOME AN ISSUE
ACROSS NW AL/SRN TN AS TEMPS FALL TO AROUND 28-30F RANGE. ANY
RESIDUAL WATER ON PAVEMENT COULD FREEZE...ESPECIALLY ON ELEVATED
SURFACES. WILL MENTION THIS IN UPDATED HWO THIS EVENING.

DEEP/MOIST SOUTHWEST FLOW ALOFT OVERTOP SHALLOW/COLD AIRMASS WILL
MAINTAIN CLOUD COVER THROUGH THE NIGHT. NRLY SFC WINDS 10-20 MPH
SHOULD KEEP FOG FROM FORMING AND ALSO HELP DRY UP THE GROUND IN
SPOTS. UPDATED FORECAST /ZFP/ AND GRIDS ACCORDINGLY. NEW INFORMATION
IS OUT AT THIS TIME.

DJN.83

&&

.AVIATION...
/ISSUED 522 PM CST FRI DEC 6 2013/
FOR 00Z TAFS...
KHSV CENTERED WITHIN AXIS OF HEAVIEST RAIN AS OF THIS TAF ISSUANCE
WITH BACK EDGE OF PRECIP PROGGED TO MOVE THROUGH KMSL BTWN 00-01Z.
NARROW ZONE OF EMBEDDED TS ACROSS N CNTRL AL EXPECTED TO SHIFT EAST
OF KHSV BTWN 01-02Z. IFR CONDITIONS WILL PREVAIL WITHIN HEAVY RAIN
HOWEVER...ONCE PRECIP MOVES OUT...CIGS SHOULD IMPROVE SLIGHTLY
BETWEEN 010-020 AGL /MVFR/. THIS SHOULD PREVAIL THROUGH THE NIGHT
WITH ONLY SOME VERY LIGHT PRECIP OCCURRING AT TIMES. SFC WINDS WILL
BE GUSTY AT TIMES 12-17KTS THROUGH THE NIGHT. COULD SEE A BRIEF
PERIOD OF ENHANCED WINDS /UP TO 25KTS/ IMMEDIATELY BEHIND THE BACK
EDGE OF PRECIP BETWEEN 00-03Z.

DJN.83

&&

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

$$

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