National Weather Service Text Product Display

Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN

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000
FXUS64 KMRX 191937
AFDMRX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
330 PM EDT SUN MAY 19 2013

.SHORT TERM (TONIGHT THROUGH MONDAY NIGHT)...-- Changed Discussion --AN UPPER LEVEL LOW WILL
CONTINUE TO SLOWLY MOVE ACROSS THE SOUTHERN APPALACHIAN REGION
TONIGHT. THIS HAS PRODUCED WIDESPREAD SHOWERS AND THUNDERSTORM INTO
THE OVERNIGHT HOURS. SOME OF THESE STORMS MAY BECOME STRONG TO
SEVERE. THE LOW WILL CONTINUE TO PULL AWAY FROM THE AREA ON
MONDAY...BUT THE AIR MASS WILL REMAIN WARM...MOIST AND AT LEAST
WEAKLY UNSTABLE FOR SCATTERED MAINLY DIURNAL TYPE CONVECTION.

.LONG TERM (TUESDAY THROUGH SUNDAY)...LITTLE CHANGE IN THE WEATHER
PATTERN ON TUESDAY AND EXPECTED ANOTHER DAY OF DIURNAL CONVECTION.
A WEAK FRONTAL BOUNDARY WILL MOVE THROUGH WEDNESDAY FOR OUR BEST
CHANCE OF SHOWERS AND THUNDERSTORMS FOR THE EXTENDED. A TROUGH AXIS
IS PROGGED TO SLIDE THROUGH AROUND THE THURSDAY/FRIDAY TIME FRAME
CONTINUING A CHANCE OF CONVECTION. DRY NORTHWEST FLOW SHOULD SET UP
FOR THE WEEKEND FOR OUR BEST SHOT AT DRY CONDITIONS FOR THE EXTENDED.-- End Changed Discussion --

.PRELIMINARY POINT TEMPS/POPS...
-- Changed Discussion --CHATTANOOGA AIRPORT, TN 65 88 66 90 67 / 30 20 10 20 20
KNOXVILLE AIRPORT, TN 64 86 64 87 65 / 50 20 10 20 20
OAK RIDGE, TN 64 86 64 87 65 / 40 20 10 20 20
TRI CITIES AIRPORT, TN 61 82 61 85 62 / 60 30 10 20 20-- End Changed Discussion --

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

MJB