Area Forecast Discussion
Issued by NWS Nashville, TN

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FXUS64 KOHX 270750
AFDOHX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
150 AM CST SAT DEC 27 2014

.DISCUSSION...SURFACE HIGH REMAINS SITUATED OFF TO THE EAST WITH A
WARMER SOUTHERLY FLOW NOW IN PLACE ACROSS MIDDLE TENNESSEE AHEAD
OF A SLOW MOVING COLD FRONT TO OUR WEST. MAINLY MID-LEVEL CLOUDS
COVER THE MID STATE THIS MORNING, ALTHOUGH LOOK FOR SIGNIFICANT
LOW-LEVEL MOISTURE ADVECTION OVER THE NEXT 12-18 HOURS. NAM MODEL
ACCELERATES THE SURFACE FRONT TO NEAR THE MISSISSIPPI RIVER BY
18Z, WITH PRECIPITATION DEVELOPING FROM WEST TO EAST ACROSS MIDDLE
TENNESSEE, MAINLY DURING THE AFTERNOON, ALTHOUGH A FEW SHOWERS
MAY CREEP IN DURING THE MORNING. FROPA WILL TAKE PLACE SATURDAY
NIGHT, WITH WIDESPREAD POST-FRONTAL SHOWERS LINGERING WELL INTO
SUNDAY BEFORE THE MOISTURE PULLS OUT SUNDAY NIGHT. LOOK FOR COOLER
TEMPERATURES TO START THE WEEK, WITH A FURTHER PLUNGE OCCURRING BY
MIDWEEK AS A SECOND (DRY) COLD FRONT SLIPS THROUGH AND BRINGS AN
ARCTIC AIR MASS INTO THE SOUTHEAST U.S. LOOK FOR A SPLIT FLOW IN
THE UPPER JET TOWARD THE END OF NEXT WEEK AS A DEVELOPING SYSTEM
OVER THE SOUTHWEST U.S. (SOUTHERN BRANCH OF THE JET) AMPLIFIES
THE UPPER PATTERN AND EVENTUALLY BRINGS A POTENTIAL WINTER SYSTEM
INTO MIDDLE TENNESSEE DURING THE WEEKEND.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      55  44  50  36 /  80 100  90  40
CLARKSVILLE    52  40  46  32 /  80 100  70  20
CROSSVILLE     57  45  54  41 /  50 100 100  60
COLUMBIA       56  45  52  37 /  80 100  90  50
LAWRENCEBURG   56  44  53  37 /  80 100 100  60
WAVERLY        52  41  47  33 /  80 100  80  30

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

$$

ROSE




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