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Area Forecast Discussion

895
FXUS64 KHUN 261659 AAC
AFDHUN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1059 AM CST WED NOV 26 2014

.UPDATE...
FOR 18Z TAFS

&&

.DISCUSSION...
/ISSUED 933 AM CST WED NOV 26 2014/
WATER VAPOR SHOWS A COMPACT SHORTWAVE/UPPER LOW OVER SRN IA INTO WRN
MO DROPPING RAPIDLY SOUTHEAST AS AN IMPRESSIVE JET STREAM FLOWS SE
FROM THE NRN ROCKIES INTO THE DEEP SOUTH. AN ASSOCIATED SURFACE LOW
WAS OVER KDSM WITH A SECONDARY LOW DEVELOPING IN NORTHERN AR ALONG A
TROF AXIS. THE COLD FRONT WAS SITUATED FROM THE LOW IN IA INTO NRN
KS. THE LOWS ARE FORECAST TO BASICALLY MERGE OVER MIDDLE TN BY EARLY
THIS EVENING. AN ARC OF MID/HIGH CLOUDS IN ADVANCE OF THE SHORTWAVE
WAS CROSSING THE MS RIVER AND WILL ARRIVE EARLY THIS AFTERNOON. AT
THIS HOUR, PRECIP WAS CONFINED TO SW/CENTRAL MO WITH A DRY LOW LEVEL
AIRMASS IN AR. THE AIRMASS WILL BE SLOW TO MOISTEN (TOP-DOWN) THIS
AFTERNOON, SO HAVE OPTED TO REMOVE PRECIP FROM THIS AFTERNOON`S
FORECAST. THE MAJORITY OF THE PRECIP WILL REMAIN IN THE COOL SECTOR
UNTIL THE COLD FRONT ARRIVES LATE TONIGHT.

AK

&&

.AVIATION...
FOR 18Z TAFS... BAND OF MID AND HIGH LEVEL CLOUDS (VFR) WILL
OVERSPREAD THE TN VALLEY THIS AFTERNOON IN ADVANCE OF AN UPPER AIR
TROF DROPPING THRU THE MO VALLEY. THIS SYSTEM WILL ARRIVE IN THE OHIO
AND TN VALLEYS TONIGHT BRINGING A COLD FRONT THRU KMSL ~03Z AND KHSV
~05Z SHIFTING WINDS FROM SW TO NW. MVFR CIGS ARE LIKELY BEHIND THE
FRONT LASTING THRU THE REMAINDER OF THE PERIOD. ATTM, PRECIPITATION
SHOULD REMAIN TO THE N OF BOTH TERMINALS.

AK

&&

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

$$

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



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