Severe Thunderstorm Warning 170, NWS Greenville-Spartanburg, SC

SCZ001>014-019-NCZ033>037-048>059-062>072-082-GAZ010-017-018-026-028-
029-250045-

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
230 PM EDT THU AUG 24 2000

MODELS IN GOOD AGREEMENT WITH SWINGING A SHORT WAVE ACROSS THE CWA
TONIGHT. WE ALREADY HAVE A LEE SIDE TROF PROVIDING SOME MOISTURE
CONVERGENCE AND DIURNAL WARMING WITH GOOD SUNSHINE OVER SOUTHERN
SECTIONS HAS COMBINED WITH DEWPOINTS IN THE UPPER 60S TO INCREASE
INSTABILITY EARLY THIS AFTERNOON. WE ALSO WILL SEE ADDITIONAL
SUPPORT ALOFT WORK IN AS WE GET INTO THE RIGHT ENTRANCE REGION OF AN
UPPER JET THAT IS SINKING SOUTH ALONG THE EAST COAST. WITH ALL OF
THIS IN MIND...WE SHOULD SEE SCATTERED SHOWERS AND THUNDERSTORMS
LATE TODAY AND OVERNIGHT. SOME OVER SOUTHERN SECTIONS COULD BE
STRONG WITH THE BEST COVERAGE LIKELY TO BE AROUND THE CHARLOTTE
METRO AREA.

A COLD FRONT WILL DROP SOUTH INTO THE LEE TROF TONIGHT AND SHOULD
PUSH SOUTH THROUGH THE CWA BY EARLY FRIDAY. WINDS NORTH OF THE FRONT
BY FRIDAY MORNING WILL BECOME NORTHWEST TO NORTH OVER THE MTNS AND
NORTHEAST ELSEWHERE. ALTHOUGH THE MID AND UPPER TROPOSPHERE WILL DRY
OUT DURING THE EARLY MORNING HOURS...THE LOWER LAYERS STAY MOIST
THROUGH MUCH OF FRIDAY. WEST SECTIONS SHOULD SCATTER OUT DURING THE
MORNING ALLOWING PLENTIFUL SUNSHINE. BUT SOME THICKER STRATO-CU WILL
BE POSSIBLE IN THE NORTHEAST FLOW OVER EAST SECTIONS AND THIS WILL
MAKE TEMP FORECASTS TRICKY.

THE WEEKEND INTO EARLY NEXT WEEK LOOK DRY WITH TEMPS GRADUALLY WARMING
A FEW DEGREES THROUGH THE PERIOD.

FCSTID = 69
GSP   70  87  67  86 /  40  10  10  10
AND   70  87  67  87 /  30  10  10  10
CLT   69  85  67{  85 /  50  10  10  20
HKY   67  83  65  83 /  40  10  10  10
AVL   65  83  60  82 /  40  10  10  10

.GSP...
GA...NONE.
NC...NONE.
SC...NONE.

RBN

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-250300-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
229 PM EDT THU AUG 24 2000

...ISOLATED SEVERE THUNDERSTORMS POSSIBLE LATE THIS AFTERNOON AND
EVENING ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...

DIMINISHING CLOUDINESS THROUGHOUT THE AFTERNOON AND AN INCREASE IN
LOW LEVEL MOISTURE HAVE CREATED MODERATE INSTABILITY ACROSS MUCH OF
THE AREA. A TROUGH OF LOW PRESSURE OVER THE PIEDMONT WILL COMBINE
WITH A PASSING UPPER LEVEL DISTURBANCE THIS EVENING TO TRIGGER
SHOWERS AND THUNDERSTORMS IN THIS UNSTABLE AIRMASS.

THUNDERSTORMS WILL LIKELY BEGIN TO FORM OVER PIEDMONT SECTIONS NEAR
THE TROUGH...AND IN THE WESTERN NORTH CAROLINA MOUNTAINS AHEAD OF
THE APPROACHING UPPER LEVEL DISTURBANCE...LATE THIS AFTERNOON. THE
FOCUS OF THUNDERSTORM ACTIVITY WILL THEN STEADILY SHIFT TOWARD THE
PIEDMONT SECTION OF THE CAROLINAS THIS EVENING. WHILE ISOLATED
SEVERE THUNDERSTORMS ARE POSSIBLE ANYWHERE IN THE WESTERN CAROLINAS
AND NORTHEAST GEORGIA THIS EVENING...THE GREATEST THREAT WILL BE
EAST OF INTERSTATE 77 OR SOUTH OF INTERSTATE 85...ESPECIALLY NEAR
THE CHARLOTTE METROPOLITAN AREA.

SPOTTER GROUPS SHOULD MONITOR THE SITUATION IN CASE ACTIVATION IS
NEEDED LATER THIS AFTERNOON OR EVENING. STAY TUNED TO NOAA WEATHER
RADIO OR YOUR FAVORITE MEDIA OUTLET FOR THE LATEST INFORMATION.

GERAPETRITIS