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

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000
FXUS64 KMRX 300821
AFDMRX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
421 AM EDT TUE SEP 30 2014

.SHORT TERM...(TODAY AND TONIGHT)...LAYER RIDGING BUILDS INTO THE
AREA FROM THE WEST. LAYER BECOMES DRIER AND THICKNESS VALUES RISE
SLIGHTLY. MILD WARMING TREND WITH LIGHT WINDS. PATCHY MORNING FOG.

.LONG TERM...(WEDNESDAY THROUGH MONDAY)...CONTINUED WARMING
TEMPERATURES WEDNESDAY AND WEDNESDAY NIGHT AS HIGH PRESSURE RIDGE
SHIFTS FARTHER EAST. THURSDAY RIDGING SHIFTS EAST AS UPPER TROUGH
DIGS SOUTH OVER THE CENTRAL US. LOW PRESSURE OVER SOUTH CENTRAL
CANADA WITH COLD FRONT THAT EXTENDS SOUTH TO SURFACE LOW OVER
SOUTHERN PLAINS SLOWLY MOVES EAST THURSDAY. THURSDAY NIGHT A STRONG
COLD FRONT WILL MOVE INTO THE MS AND WESTERN TN VALLEY SPREADING
CLOUDS AND A CHANCE OF SHOWERS AND STORMS EASTWARD. THE SYSTEM NOW
LOOKS A LITTLE SLOWER THAN BEFORE WITH THE BEST CHANCE OF
PRECIPITATION DURING THE DAY FRIDAY WITH SHOWERS LIKELY AND ENOUGH
INSTABILITY FOR THUNDERSTORMS. THE FRONT SHOULD BE EAST OF THE
APPALACHIANS BY EVENING WITH SHOWERS ENDING BY AROUND 6Z SATURDAY.
BOTH HIGH AND LOW TEMPERATURES WILL BE MUCH ABOVE NORMAL THROUGH
THURSDAY NIGHT. WENT A LITTLE BELOW GUIDANCE THURSDAY AS CLOUDS
INCREASE. FRIDAY TEMPERATURES MUCH COOLER DUE TO CLOUDS AND
PRECIPITATION. BEHIND THE FRONT FRIDAY NIGHT THROUGH THE WEEKEND
MUCH COOLER WITH HIGHS OVER THE WEEKEND 60S TO LOWER 70S SATURDAY
TO MID 60S TO MID 70S SUNDAY. LOWS SATURDAY NIGHT WILL BE IN THE
40S. SLOW WARMING TREND CONTINUES MONDAY WITH A WEAK SYSTEM TO
CAUSE A FEW SHOWERS NORTHERN SECTIONS.

&&

.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN             84  59  86  63 /   0   0   0   0
KNOXVILLE MCGHEE TYSON AIRPORT, TN  82  57  83  60 /   0   0   0   0
OAK RIDGE, TN                       83  56  84  60 /   0   0   0   0
TRI CITIES AIRPORT, TN              80  50  82  52 /   0   0   0   0

&&

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

$$

SON/TD


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