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Area Forecast Discussion

889
FXUS64 KHUN 252046
AFDHUN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
246 PM CST THU DEC 25 2014

.DISCUSSION...
CLOUDS HAVE FINALLY DISSIPATED WITH MOST OF THE TN VALLEY UNDER
MOSTLY SUNNY SKIES. TEMPS ATTM WERE ARND 50 WITH DEWPOINTS IN THE
LOW/MID 30S. FOR TONIGHT EXPECT CLEAR SKIES...WHICH WILL ALLOW MRNG
LOWS TO DROP INTO THE LOW 30S.

ON FRIDAY HIGH CLOUDS WILL BEGIN TO INCREASE ACROSS THE CWA
ASSOCIATED WITH AN APPROACHING STORM SYSTEM NOW OVER THE WRN USA.
FOR NOW WILL KEEP ALL OF FRIDAY DRY THANKS TO SUBSIDENCE FROM HIGH
PRESSURE OFF THE SERN COASTLINE. HOWEVER BY SATURDAY MRNG AS THE
CDFNT/UPPER TROF APPROACHES THE CWA...SHRA WILL DEVELOP ACROSS NW AL
AND THEN WILL SPREAD ACROSS THE REST OF THE TN VALLEY. THE CDFNT IS
PROGGED TO SLOW DOWN/STALL OUT OVER NRN AL. ALONG WITH THE STALLED
CDFNT...A SFC WAVE WILL MOVE ACROSS THE TN VALLEY ON SUNDAY. BOTTOM
LINE...EXPECT A WET WEEKEND. RAINFALL AMOUNTS THROUGH EARLY MONDAY
MRNG SHOULD RANGE BETWEEN 1 AND 2 INCHES. WITH THE EXPECTED RAINFALL
AND THE PREVIOUS HVY RAIN A FEW DAYS AGO...MAY HAVE SOME RIVER
FLOODING PROBLEMS. ALSO THE CHC OF ANY SVR WX LOOKS VERY LOW ATTM.

BY MONDAY HIGH PRESSURE WILL BUILD SOUTH FROM THE NRN PLAINS WHICH
SHOULD PUSH THE CDFNT AND PCPN OUT OF THE TN VALLEY. IF THE GFS PANS
OUT...MOST IF NOT ALL OF MONDAY COULD BE DRY...HOWEVER FOR NOW WILL
KEEP A LOW POP FOR THE MRNG/AFTN HOURS ONLY. MONDAY NIGHT WILL BE
DRY WITH A LITTLE COLDER MRNG LOWS (IN THE LOW 30S).

TUESDAY/ WEDNESDAY...STILL NOT A LOT OF CONFIDENCE FOR THE END OF THE
EXTENDED FCST PERIOD. WILL KEEP TUESDAY/WEDNESDAY DRY WITH TEMPS A
LITTLE BELOW NORMAL DUE TO A LARGE SFC HIGH. BY THURSDAY ANOTHER
CDFNT/UPPER DISTURBANCE WILL BRING A CHC OF SHRA OVER THE TN VALLEY.
ECMWF WAS FASTER WITH THE TIMING OF PCPN/CDFNT ON THURSDAY THAN THE
GFS. FOR NOW WILL BROADBRUSH A LOW POP FOR SHRA ON THURSDAY.

OVERALL DO NOT SEE ANY MAJOR WINTER STORMS OR SVR WX FOR THE NEXT 7
DAYS.

07

&&

.AVIATION...
/ISSUED 1135 AM CST THU DEC 25 2014/
FOR 18Z TAFS...2KFT CLOUDS HAVE BEEN SLOW TO CLEAR THIS MORNING BUT
ARE FINALLY EAST OF KDCU. AS WELL...THE CLEARING LINE IS ON THE
DOORSTEP OF KHSV AS OF 1730Z. WILL THEREFORE GO AHEAD AND START THEIR
TAF AT SCT INSTEAD OF BKN. AFTER THAT...CLEAR SKIES WILL BE IN PLACE
UNTIL HIGH CLOUDS MOVE IN LATE FRIDAY MORNING. WITH LIGHT AND
VARIABLE WINDS TONIGHT...SLIGHT VISIBILITY RESTRICTIONS ARE POSSIBLE
BUT CONFIDENCE IS TOO LOW AT THIS TIME TO INCLUDE IN TAFS.

LN

&&

.PRELIMINARY POINT TEMPS/POPS...
HUNTSVILLE    34  57  41  56 /   0  10  10  60
SHOALS        35  58  42  57 /   0  10  10  60
VINEMONT      34  57  41  56 /   0  10  10  60
FAYETTEVILLE  31  55  39  54 /   0  10  10  60
ALBERTVILLE   33  56  41  56 /   0  10  10  60
FORT PAYNE    32  56  40  55 /   0  10  10  60

&&

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

$$

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



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