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000
FXUS64 KMRX 240747
AFDMRX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
350 AM EDT FRI MAY 24 2013

.SHORT TERM (TODAY AND TONIGHT)...
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AN UPPER TROUGH AXIS WILL MOVE
EAST THROUGH THE AREA EARLY THIS MORNING. DRIZZLE AND CLOUD COVER
WILL DISSIPATE THIS MORNING AS A SURFACE RIDGE OF HIGH PRESSURE
BUILDS IN FROM THE NW. TODAY TEMPERATURES WILL BE 5 TO 10 DEGREES
BELOW NORMAL ACCOMPANIED BY BREEZY NW WINDS. SKIES WILL BE CLEAR
TONIGHT WITH THE WINDS LESSENING. NEAR RECORD LOW CAN BE EXPECTED
TONIGHT ESPECIALLY ACROSS SW VA AND NE TN. RECORD LOWS FOR MAY 25
ARE: CHA 46 IN 1942/TYS 44 IN 1979/TRI 42 IN 1942/OQT 40 IN 1979.
THE WINDS WILL LIKELY DECOUPLE LATE TONIGHT...ESPECIALLY ACROSS
SHELTERED VALLEYS. PATCHY FROST WILL BECOME POSSIBLE ACROSS THESE
AREAS OF SW VA/NE TN AND CLOSE TO THE SMOKIES.

.LONG TERM (SATURDAY THROUGH THURSDAY)...NORTHWEST FLOW ALOFT WILL
CONTINUE TO REINFORCE THE DRY AND COOL AIR THAT IS IN PLACE ACROSS
THE REGION ON SATURDAY.  HOWEVER...WITH STRONG DAYTIME HEATING AND
MODERATING OF THE AIR MASS...WILL SEE A SLOW WARMING TREND FOR THE
WEEKEND.  RIDGE OF HIGH PRESSURE BUILDS IN ON MONDAY AND WILL
DOMINATE AREA WEATHER THROUGH THE REST OF THE EXTENDED.  THIS WILL
STRENGTHEN THE WARMING TREND WITH TEMPERATURES REACHING NEAR TO
SLIGHT ABOVE NORMAL BY MID WEEK.  HOWEVER...AS THE RIDGE BUILDS
IN...LOW LEVEL MOISTURE WILL RETURN AND EXPECT DAYTIME HEATING TO
GENERATE DIURNAL CONVECTION...MAINLY DURING THE LATER AFTERNOON WITH
BEST CHANCES OVER HIGHER TERRAIN.
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&&

.PRELIMINARY POINT TEMPS/POPS...
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CHATTANOOGA AIRPORT, TN             74  47  78  51  81 /   0   0   0  10  10
KNOXVILLE MCGHEE TYSON AIRPORT, TN  70  44  74  48  78 /   0   0   0  10  10
OAK RIDGE, TN                       69  43  74  49  78 /   0   0   0  10  10
TRI CITIES AIRPORT, TN              66  36  69  44  73 /   0   0   0  10  10
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&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
TN...NONE.
VA...NONE.

&&

$$

SON/MJB