Severe Thunderstorm Warning 158, NWS Greenville-Spartanburg, SC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1110 AM EDT WED JUN 11 2003

FLOW AROUND THE BERMUDA HIGH WILL CONTINUE TO PUMP MOISTURE INTO A
VERY MOIST AIR MASS OVER THE FA THIS AFTERNOON. CURRENTLY TEMPS ARE
ALREADY IN THE L80S OVER L70 DWPTS. FORECAST SOUNDINGS SHOW CAPES
INCREASING INTO THE 2500-3000 RANGE. WITH SHORT HODOGRAPHS AND PW
1.4 AND HIGHER WOULD EXPECT ISOLATED AREAS RECEIVING HEAVY RAIN.
HOWEVER...NO REAL TRIGGER IS EXPECTED IN THE WESTERN CAROLINAS AND
NORTHEAST GEORGIA. WOULD EXPECT GREATER CONVERGE OVER THE HIGHER
TERRAIN...EAST OF THE MOUNTAINS WILL COUNT ON ISOLATION TO INITIATE
CONVECTION. MCS OVER N CENTRAL TN AND KY HAS MADE LITTLE PROGRESS
EAST. MESOETA HOLDS OFF UNTIL AFTER 0Z TO TRIGGER CONVECTION AS SEA
BREEZE MOVES INLAND.

WILL UPDATE TO BRING GRIDS IN LINE WITH OBSERVATIONS. FORECAST HIGHS
STILL LOOK GOOD AS WEAK OVERCAST WOULD LIMIT HEATING...KEEPING TEMPS
LESS THAN 90. WILL ALSO DECREASE POPS TO 30 EAST OF THE HIGHER
TERRAIN AND WILL MAINTAIN 40 ELSEWHERE. WILL ALSO UPDATE SPS TO
FRESHEN WORDING...CONTINUE TO EXPECT A FEW CASES OF DAMAGING WINDS
AND HAIL.

FCSTID =   16
GSP   87  69  86  68 /  30  40  40  40
AND   88  69  85  68 /  30  40  40  40
CLT   88  69  86  67 /  30  40  40  40
HKY   86  67  83  67 /  30  40  40  40
AVL   83  64  80  63 /  40  40  40  40

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

NED

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-111215-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
624 AM EDT WED JUN 11 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA...
UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA.

.DAY ONE...TODAY

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND
EVENING. A FEW OF THE STORMS COULD BECOME SEVERE. PLEASE SEE
CAESPSGSP FOR FURTHER INFORMATION.

.DAYS TWO THROUGH SEVEN...

A COMPLEX OF SHOWERS AND THUNDERSTORMS MAY AFFECT WESTERN PORTIONS
OF THE AREA THURSDAY MORNING. DAMAGING STRAIGHT LINE WINDS WILL BE
POSSIBLE. OTHERWISE...SCATTERED...MAINLY AFTERNOON AND EVENING
SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS THE AREA FOR THE NEXT
7 DAYS. ISOLATED SEVERE STORMS WILL BE POSSIBLE MOST DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING.

LANE

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-112000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1130 AM EDT WED JUN 11 2003

...A FEW SEVERE THUNDERSTORMS POSSIBLE ACROSS THE WESTERN CAROLINAS
AND NORTHEAST GEORGIA THIS AFTERNOON...

SOUTHWEST WINDS WILL RESULT IN A CONTINUED INCREASE IN LOW LEVEL
MOISTURE ACROSS THE AREA TODAY. ALTHOUGH HIGH CLOUDS ARE EXPECTED TO
INHIBIT DAYTIME HEATING TO AN EXTENT...AFTERNOON TEMPERATURES WILL
BE WARM ENOUGH TO ALLOW FOR A MODERATELY UNSTABLE AIR MASS. AS A
RESULT...ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO DEVELOP ACROSS THE HIGHER TERRAIN OF THE WESTERN
CAROLINAS AND NORTHEAST GEORGIA THIS AFTERNOON. SCATTERED
THUNDERSTORMS DEVELOPING OVER THE MOUNTAINS DURING THE EARLY TO
MIDDLE PART OF THE AFTERNOON WILL MOVE TO AREAS EAST OF THE BLUE
RIDGE DURING THE LATE AFTERNOON AND EARLY EVENING.

THE DEGREE OF INSTABILITY THAT IS EXPECTED...COMBINED WITH FAVORABLE
WIND FIELDS INDICATES THAT A FEW STORMS COULD BECOME SEVERE.
DAMAGING STRAIGHT LINE WINDS AND HAIL TO THE SIZE OF QUARTERS WILL
BE THE MAIN THREAT WITH ANY STORMS THAT REACH SEVERE LEVELS. WITH
HIGH AMOUNTS OF AVAILABLE MOISTURE AND SLOW STORM MOTIONS...ISOLATED
FLOODING OF LOW LYING AND POOR DRAINAGE AREAS MAY ALSO OCCUR.

SPOTTER GROUPS SHOULD BE PREPARED TO ACTIVATE THIS AFTERNOON AND
EVENING. DISPATCHERS SHOULD ENSURE COUNTY EMERGENCY MANAGEMENT
OFFICIALS ARE AWARE OF THIS INFORMATION.

NED