FXUS64 KMRX 260902
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
345 AM EST SAT DEC 26 2009
.SHORT TERM (TODAY AND TONIGHT)...LOW PRESSURE SYSTEM TO OUR
NORTHWEST WILL CONTINUE TO DRIFT SLOWLY NORTHEAST AND WEAKEN. WEAK
HIGH PRESSURE WILL EXTEND INTO OUR AREA FROM THE SOUTH. SHOULD BE
DRY FOR THE SHORT TERM...WITH MAINLY SOME HIGH CLOUDS AROUND. WILL
NOT STRAY FAR FROM MAV TEMPS...WHICH LOOK REASONABLE FOR THE MOST
PART.
.LONG TERM (SUNDAY THROUGH FRIDAY)...UPPER MIDWEST UPPER LOW WILL
SLOWLY OPEN AND LIFT OUT THROUGH THE NORTHEASTERN U.S. DURING THE
FIRST COUPLE DAYS OF THE LONG TERM PERIOD BUT NOT BEFORE INCREASING
THE PROBABILITY OF SOME OROGRAPHIC SNOW SHOWERS IN THE MOUNTAINS
WITH A FEW FLURRIES POSSIBLE IN THE LOWER ELEVATIONS. THE WINTERY
PRECIP POSSIBILITY SHOULD WRAP UP ACROSS SOUTHWEST VIRGINIA AND
EXTREME NORTHEAST TENNESSEE MONDAY NIGHT WITH A SHORT PERIOD OF
RIDGING ALLOWING FOR A DRY FORECAST TUESDAY AND TUESDAY NIGHT. NEXT
SYSTEM IS ANOTHER SOUTHERN STREAM SHORT WAVE TROF THAT BUILDS INTO
THE SOUTHEASTERN U.S. WEDNESDAY INTO THURSDAY GENERATING SOME RAIN
AND SNOW ACROSS THE FORECAST AREA. A LITTLE TOO EARLY FOR SPECIFIC
DETAILS AT THIS EXTENDED RANGE...BUT WITH MODEL FORECASTS ATTM
SHOWING SURFACE LOW PRESSURE DRIVING EAST NORTHEAST FROM THE WESTERN
GULF OF MEXICO (ON A TRACK WELL SOUTH OF THE SOUTHERN APPALACHIANS)
TO THE MIDDLE ATLANTIC COAST...INTERESTING WINTER WEATHER IS A
POSSIBILITY AS THE NEW YEAR BEGINS. BEHIND THIS SYSTEM SOME LIGHT
PRECIP MAY CONTINUE THROUGH FRIDAY AS AN UPPER TROF PRESSES EAST
ACROSS THE GREAT LAKES.
&&
.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN 53 28 50 28 45 / 0 0 0 10 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 49 30 47 26 40 / 0 0 10 10 10
OAK RIDGE, TN 49 29 48 28 41 / 0 0 10 10 10
TRI CITIES AIRPORT, TN 48 24 43 24 38 / 0 0 10 20 10
&&
.MRX WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
TN...NONE.
VA...NONE.
&&
$$
