Alert archive / North Carolina / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 404, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 25, 2007, 3:03 PM EDT for Haywood County, North Carolina. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 25, 2007, 3:03 PM EDT (19:03 UTC)
- Expired
- Aug 25, 2007, 3:28 PM EDT
- In force
- 25 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Haywood County, NC
The radar
The Greer radar (KGSP), 83 km from the middle of the area, began a volume at 19:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.1 hours before the alert went out and 274 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 40 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- -13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS52 KGSP 251904
SVRGSP
NCC087-252000-
/O.NEW.KGSP.SV.W.0404.070825T1903Z-070825T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
303 PM EDT SAT AUG 25 2007
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN HAYWOOD COUNTY IN WESTERN NORTH CAROLINA
* UNTIL 400 PM EDT
* AT 303 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 9
MILES SOUTHEAST OF WAYNESVILLE...OR ABOUT 3 MILES WEST OF
CRUSO...AND WAS MOVING SOUTHEAST AT 10 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CRUSO BY 315 PM EDT...
PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY
RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM
WINDOWS AND DOORS UNTIL THE STORM PASSES.
TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING...THROUGH OUR
AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER...
1 8 7 7...6 3 3...6 7 7 2.
LAT...LON 3545 8300 3555 8282 3550 8277 3549 8279
3545 8279 3542 8274 3537 8280 3532 8283
3530 8290 3532 8293
TIME...MOT...LOC 1903Z 327DEG 11KT 3542 8285
$$
HG1 follow-up statement
000
WWUS52 KGSP 251928
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
327 PM EDT SAT AUG 25 2007
NCC087-251937-
/O.CAN.KGSP.SV.W.0404.000000T0000Z-070825T2000Z/
HAYWOOD NC-
327 PM EDT SAT AUG 25 2007
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN HAYWOOD COUNTY IS
CANCELLED...
AT 327 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE PREVIOUSLY SEVERE THUNDERSTORM HAD WEAKENED BELOW SEVERE LIMITS.
HEAVY RAIN AND FREQUENT LIGHTNING REMAIN POSSIBLE NEAR CRUSO THROUGH
4 PM EDT.
LAT...LON 3545 8300 3555 8282 3550 8277 3549 8279
3545 8279 3542 8274 3537 8280 3532 8283
3530 8290 3532 8293
TIME...MOT...LOC 1927Z 327DEG 11KT 3536 8280
$$
HGWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 25, 10:50 AM EDT, 4 hours 13 minutes earlier.
Area forecast discussion, Aug 25, 10:50 AM EDT, 4 hours 13 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1050 AM EDT SAT AUG 25 2007
.SYNOPSIS...
UPPER RIDGE WILL WEAKEN TODAY AS AN UPPER LEVEL DISTURBANCE AND
ASSOCIATED COLD FRONT APPROACH THE AREA. THE FRONT WILL SLOWLY MOVE
IN FROM THE NORTHWEST ON SUNDAY...BECOME STATIONARY...AND SLOWLY
DISSIPATE AS THE UPPER RIDGE BUILDS BACK OVER OUR REGION DURING THE
FIRST HALF OF THE WEEK.
&&
.NEAR TERM /THROUGH SUNDAY/...
FEW CHANGES NEEDED TO FCST. GSO 12Z/25 SOUNDING SHOWING VERY SIMILAR
THERMODYNAMIC CONDITIONS AS YESTERDAY. LAPSE RATES MAY BE EVEN A
LITTLE MORE FAVORABLE FOR DEEP CONVECTION WITH 2000+ J/KG. NAM CAPES
ALSO SIMILAR TO YESTERDAY. HOWEVER...THERE WILL BE ONLY WEAK UPSLOPE
CONVERGENCE ON MAINLY THE SWRN FACING SLOPES IN SW NC. BUT THE LAST
COUPLE OF DAYS HAVE SHOWN THAT IT DOESNT TAKE MUCH TO TRIGGER
CONVECTION IN THIS AIRMASS. UPPER SUPPORT AND WIND SHEAR ARE STILL
VERY WEAK...SO THE MAIN FACTOR IN CONVECTIVE CHANCES ARE MTN TOP
CONVERGENCE AND OLD MESOSCALE BNDRYS FROM PERHAPS YESTERDAYS
CONVECTION. LEFT POP AS IS...GIVEN NO INDICATION ONE WAY OR ANOTHER.
MODEL SOUNDINGS SHOW DRIER AIR IN MID LEVELS SO DAMAGING WINDS WILL
BE POSSIBLE WITH ANY STORMS THAT DO DEVELOP LATER TODAY.
MAX TEMPS WILL BE WELL ABOVE NORMAL AGAIN TODAY. MODEL BLEND
ON MAX TEMPS FOR MID-UPPER 90S...LOW 80S TO AROUND 90 MTNS. WITH
DEWPOINTS ONLY EXPECTED TO MIX OUT INTO THE UPPER 60S ACROSS THE
PIEDMONT...HEAT INDEX VALUES WILL BE 100-104 FOR AT LEAST A COUPLE
HOURS THIS AFTN SO A HEAT ADVISORY WAS NOT ISSUED THIS MORNING. WILL
MONITOR TRENDS IN DEWPOINT/HEAT INDEX VALUES THROUGH THE EARLY AFTN.
CONVECTION SHOULD TAPER OFF THIS EVE BUT WITH FRONT APPROACHING FROM
THE NW KEPT CHANCE POPS OVER NW ESCARPMENT AND SLIGHT CHANCE S
MTNS/FOOTHILLS. LOWS TONIGHT LOWS 70S WITH 60S MTNS.
&&
.SHORT TERM /SUNDAY NIGHT THROUGH MONDAY/...
THE 500MB TROUGH IS DEPICTED BY BOTH THE NAM AND GFS AS CROSSING OUR
REGION ON SUNDAY. SPC HAS THE DAY 2 SEE TEXT OVER THE VIRGINIAS.
THE UPPER TROUGH ALONG WITH A SLOW MOVING COOL FRONT WILL PROVIDE A
GREATER FOCUS FOR MAINLY AFTERNOON AND EVENING SHOWERS AND
THUNDERSTORMS ON SUNDAY. SPC MAY UPGRADE TO SLIGHT RISK FOR SOME OF
THE MID ATLANTIC AS CONFIDENCE POTENTIALLY RISES. THE FRONT IS
EXPECTED TO LINGER FROM SOUTHWEST TO NORTHEAST ACROSS THE CAROLINAS
INTO MONDAY AS IT GRADUALLY DISSIPATES. THE NAM HAS MORE MOISTURE
LINGERING ACROSS OUR AREA INTO THE FIRST PART OF THE WEEK WITH THE
GFS SIGNIFICANTLY DRIER. AS THE TROUGH MOVES OFF TO THE EAST SUNDAY
NIGHT AND MONDAY...THE RIDGE WILL BUILD BACK OVER THE REGION FROM
THE WEST. SCATTERED MAINLY AFTERNOON AND EVENING SHOWERS AND
THUNDERSTORMS SHOULD CONTINUE INTO THE FIRST HALF OF THE WEEK.
&&
.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
UPPER RIDGE HAS ONE LAST HURRAH ON TUE BEFORE RETROGRADING WELL WEST
OF THE AREA BY FRI. TROF BUILDS OVER THE EAST WED AND REMAINS IN
PLACE THROUGH FRI. OPS MDLS AND ENSEMBLES ARE ALL IN GENERAL
AGREEMENT WITH THIS FORECAST...SO HOPEFULLY A PATTERN CHANGE IS IN
STORE. AT THE SURFACE...DECAYING FRONT WASHES OUT ON TUE LEAVING A
MOIST AND UNSTABLE AIR MASS OVER THE AREA THRU WED. ANOTHER FRONTAL
SYSTEM APPROACHES ON THURSDAY AND MOVES THROUGH EARLY FRIDAY. THE
RESULT IS ISOLATED TO SCATTERED MAINLY DIURNAL CONVECTION EACH DAY
WITH NEAR TO SLIGHTLY ABOVE NORMAL TEMPS TUE THRU THU NITE. BELOW
NORMAL HIGHS WILL BE FORECAST FOR FRIDAY AS THE UPPER TROUGH BECOMES
MOST ESTABLISHED OVER THE EAST. THE TROUGH SHOULD BEGIN TO LIFT OUT
NEXT WEEKEND WITH SOME INCREASE IN THE TEMPERATURES AS HEIGHTS RISE
SLOWLY FROM THE WEST.
&&
.AVIATION /15Z SATURDAY THROUGH WEDNESDAY/...
LOOKING FOR UNSTABLE CONDITIONS AGAIN THIS AFTERNOON WITH HIGH DEW
POINTS AND TEMPS WARMING INTO THE 90S. EXPECT SCT
SHWRS/TSTMS...SPECIALLY OVER MTNS AND W PIEDMONT AREAS...WITH ISOLD
COVERAGE SE CWA NEAR KCLT. GOING WITH CB CLOUDS AFT 18Z ALL AREAS
EXCEPT KCLT...WITH VCTS AT KAVL.
COLD FRONT APPROACHES THE REGION SUNDAY SO EXPECT BETTER COVERAGE OF
AFTN-EVE CONVECTION SUNDAY INTO THE FIRST PART OF NEXT WEEK. PATCHY
MORNING FOG WILL ALSO BE POSSIBLE EACH DAY...ESPECIALLY MTN VALLEYS.
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...AIR QUALITY ACTION DAY UNTIL 9 PM EDT THIS EVENING FOR NCZ036-
037-057-069>072-082.
SC...NONE.
&&
SYNOPSIS...DEO
NEAR TERM...ARK/RB
SHORT TERM...DEO
LONG TERM...DEO
AVIATION...ARK/RBHazardous weather outlook, Aug 25, 5:49 AM EDT, 9 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 549 AM EDT SAT AUG 25 2007 GAZ010-017-018-026-028-029-NCZ033-035-048>053-056-058-059-062>065- 068-501>510-SCZ001>014-019-261000- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER- MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-GRAHAM- NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON- CLEVELAND-CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS- GREATER BURKE-MCDOWELL MOUNTAINS-EASTERN MCDOWELL- RUTHERFORD MOUNTAINS-GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK- OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS- GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG- CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD- 549 AM EDT SAT AUG 25 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. A FEW SEVERE STORMS WILL BE POSSIBLE THIS AFTERNOON AND EARLY EVENING...MAINLY IN THE MOUNTAINS AND ADJACENT FOOTHILLS. THE MAIN SEVERE THREAT IS EXPECTED TO BE DAMAGING WINDS. HEAT INDEX VALUES WILL BE IN THE 100 TO 104 RANGE IN THE FOOTHILLS AND PIEDMONT RANGE FROM AROUND 1 PM TO ABOUT 6 PM. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. A FEW SEVERE STORMS WILL BE POSSIBLE AGAIN SUNDAY AFTERNOON AND EARLY EVENING. THE MAIN SEVERE THREAT IS EXPECTED TO BE DAMAGING WINDS. HEAT INDEX VALUES WILL BE AROUND 100 DEGREES IN THE PIEDMONT SUNDAY AFTERNOON FROM AROUND 1 PM TO 5 PM. SOME SEVERE WEATHER IS AGAIN POSSIBLE LATE MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ036-037-057-069>072-082-261000- IREDELL-DAVIE-ROWAN-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC- 549 AM EDT SAT AUG 25 2007 ...AIR QUALITY ACTION DAY IN EFFECT UNTIL 9 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. AIR QUALITY ACTION DAY. A FEW SEVERE STORMS WILL BE POSSIBLE THIS AFTERNOON AND EARLY EVENING...MAINLY IN THE MOUNTAINS AND ADJACENT FOOTHILLS. THE MAIN SEVERE THREAT IS EXPECTED TO BE DAMAGING WINDS. HEAT INDEX VALUES WILL BE IN THE 100 TO 104 RANGE IN THE FOOTHILLS AND PIEDMONT RANGE FROM AROUND 1 PM TO ABOUT 6 PM. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A FEW SEVERE STORMS WILL BE POSSIBLE AGAIN SUNDAY AFTERNOON AND EARLY EVENING. THE MAIN SEVERE THREAT IS EXPECTED TO BE DAMAGING WINDS. HEAT INDEX VALUES WILL BE AROUND 100 DEGREES IN THE PIEDMONT SUNDAY AFTERNOON FROM AROUND 1 PM TO 5 PM. SOME SEVERE WEATHER IS AGAIN POSSIBLE LATE MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. DEO
In the hours before
Special weather statement, Aug 25, 2:47 PM EDT, 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 247 PM EDT SAT AUG 25 2007 NCZ063-SCZ001-251930- OCONEE MOUNTAINS-SOUTHERN JACKSON- 247 PM EDT SAT AUG 25 2007 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN OCONEE AND SOUTHERN JACKSON COUNTIES THROUGH 330 PM EDT... AT 247 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7 MILES SOUTHEAST OF HIGHLANDS...OR 16 MILES NORTH OF WALHALLA...MOVING SOUTHEAST AT 5 MPH. THIS STORM WILL BE NEAR... 5 MILES NORTHWEST OF SALEM BY 330 PM EDT. PEA SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. INTENSE LIGHTNING IS ALSO OCCURRING WITH THIS STORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. HG
Special weather statement, Aug 25, 2:56 PM EDT, 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 256 PM EDT SAT AUG 25 2007 NCZ064-SCZ002-003-251945- GREENVILLE MOUNTAINS-PICKENS MOUNTAINS-TRANSYLVANIA- 256 PM EDT SAT AUG 25 2007 ...A STRONG THUNDERSTORM WILL AFFECT NORTHERN PICKENS...NORTHWESTERN GREENVILLE AND SOUTHEASTERN TRANSYLVANIA COUNTIES THROUGH 345 PM EDT... AT 256 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES NORTH OF TABLE ROCK RESERVOIR...OR 7 MILES SOUTH OF BREVARD...MOVING SOUTH AT 5 MPH. THIS STORM WILL BE NEAR... TABLE ROCK RESERVOIR BY 345 PM EDT. PEA SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. INTENSE LIGHTNING IS ALSO OCCURRING WITH THIS STORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. HG
Special weather statement, Aug 25, 3:00 PM EDT, 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 300 PM EDT SAT AUG 25 2007 NCZ052-251945- HAYWOOD- 300 PM EDT SAT AUG 25 2007 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN HAYWOOD COUNTY THROUGH 345 PM EDT... AT 300 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES NORTHWEST OF CRUSO...OR 9 MILES EAST OF WAYNESVILLE...MOVING SOUTH AT 10 MPH. THIS STORM WILL BE NEAR... CRUSO BY 305 PM EDT. PEA SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. INTENSE LIGHTNING IS ALSO OCCURRING WITH THIS STORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. HG
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 5:52 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Rowan | 53 min |
| Aug 25, 6:10 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland, Rutherford | 65 min |
| Aug 25, 7:01 PM EDT | Severe Thunderstorm Warning | GSP | Davie | 34 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.