Alert archive / South Carolina / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 5, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Feb 21, 2005, 5:36 PM EST for Oconee County, South Carolina. It was in force for 39 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
- Feb 21, 2005, 5:36 PM EST (22:36 UTC)
- Expired
- Feb 21, 2005, 6:15 PM EST
- In force
- 39 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Oconee County, SC
The radar
The Greer radar (KGSP), 78 km from the middle of the area, began a volume at 22:39 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 21, 1:45 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.6 hours before the alert went out and 205 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
- 88 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 553 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 177 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 212236
SVRGSP
SCC073-212315-
/O.NEW.KGSP.SV.W.0005.050221T2236Z-050221T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
536 PM EST MON FEB 21 2005
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
OCONEE COUNTY IN UPSTATE SOUTH CAROLINA
* UNTIL 615 PM EST
* AT 529 PM EST...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS STORM WAS
LOCATED NEAR LONG CREEK...OR ABOUT 7 MILES SOUTHEAST OF CLAYTON...
AND MOVING EAST AT 50 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
WALHALLA AND WESTMINSTER BY 545 PM EST
SENECA BY 555 PM EST
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.
LAT...LON 3479 8332 3481 8327 3487 8324 3493 8312
3493 8292 3492 8291 3479 8289 3474 8290
3472 8286 3464 8285 3452 8295 3469 8335
$$
JRL/HG1 follow-up statement
000
WWUS52 KGSP 212256
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
555 PM EST MON FEB 21 2005
SCC073-212315-
/O.CON.KGSP.SV.W.0005.000000T0000Z-050221T2315Z/
OCONEE SC-
555 PM EST MON FEB 21 2005
...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 615 PM EST FOR
OCONEE COUNTY...
AT 549 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.
THIS STORM WAS LOCATED NEAR WESTMINSTER...MOVING SOUTHEAST AT 50
MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
OAKWAY AND SENECA BY 605 PM EST
FAIRPLAY BY 610 PM EST
LAT...LON 3479 8332 3481 8327 3487 8324 3493 8312
3493 8292 3492 8291 3479 8289 3474 8290
3472 8286 3464 8285 3452 8295 3469 8335
$$
JRL/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 Feb 21, 2:55 PM EST, 2 hours 41 minutes earlier.
Area forecast discussion, Feb 21, 2:55 PM EST, 2 hours 41 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 255 PM EST MON FEB 21 2005 .SHORT TERM (TONIGHT THROUGH THURSDAY)... LATEST SFC ANALYSIS REVEALS WAVES OF LOW PRESSURE RIDING NE ALONG THE FRONT DRAPED FROM WV TO CENTRAL TN. A SHARP DEWPOINT BOUNDARY HAS SET UP ACROSS NRN AL/GA AND WEAK FORCING ALOFT CONTINUES FROM THE SHEARING 500 MB SHORTWAVE AND SPURIOUS UPPER DIVERGENCE. DEWPOINTS WITHIN THE CURRENT SVR TSTM WATCH AREA HAVE RECOVERED TO 50 TO 55 DEGREES...AND ADDITIONAL RECOVERY THROUGH THE LATE AFTERNOON IS POSSIBLE ACROSS THE SOUTHERN PIEDMONT. 850 MB FLOW WILL CONTINUE TO VEER TO THE WEST AND THEN NW OVERNIGHT...WITH DOWNSLOPE FLOW GRADUALLY ENDING CONVECTION EAST OF THE MTNS. THE GFS AND NAM DIFFER WITH THE HANDLING OF ADDITIONAL WAVES FORMING ALONG THE PASSING FRONT THROUGH TUESDAY...WITH THE NAM INDICATING LINGERING MOISTURE AND SPOTTY UPGLIDE LATE DAY. THE GFS IS PREFERRED WITH STRONGER DRYING AND LITTLE TO NO SFC BASED INSTABILITY FOR TUESDAY. COOLER AIR ARRIVES TUES NIGHT THROUGH WED ON NW FLOW...WITH SOME LOW LEVEL MOISTURE BANKING UP INTO THE NRN MTNS AROUND DAYBREAK WED. 850 MB TEMPS SHOULD BE NO COLDER THAN -4 C AND MOISTURE IS VERY SHORT LIVED...SO ONLY SCHC FOR RAIN/SNOW INDICATED IN THE NRN MTNS. THU REMAINS THE LARGER QUESTION AS SOUTHERN STREAM ENERGY GETS GOING...SOONER ON THE GFS AND LATER ON THE NAM. WILL CONTINUE TO RUN MAINLY SCHC TO VERY LOW CHC POPS ACROSS THE SRN TIER UNTIL THE EVENT COMES MORE INTO FOCUS. NRN TIER APPEARS THE DRIEST...BUT ALSO RUNS THE COLDEST WITH MARGINAL RA/SN ISSUES IF PRECIP CAN WORK FAR ENOUGH NORTH. && .LONG TERM (THURSDAY NIGHT THROUGH MONDAY)... SPLIT FLOW PATTERN REMAINS THROUGH THE EXTENDED PERIOD. SRN STREAM KEEPS PRECIPITATION VERY CLOSE TO THE CWA...HOWEVER...WILL KEEP THE FORECAST DRY BASED ON A CONSENSUS OF THE MEDIUM RANGE MODELS. GFS HAS BEEN CONSISTENT WITH THE CHC THAT MOISTURE TAILING THE CLIPPER COULD RESULT IN A SCHC FOR SHSN OR FLURRIES OVER THE NRN MTNS...WILL PRESERVE SCHC FOR 06-12Z SAT. DY7...L/W TROF BEGINS TO DIG OVER THE CENTRAL CONUS RESULTING IN WAA AND GULF MOISTURE TO BUILD OVER THE SE US...WILL INTRODUCE A SCHC MON AFTERNOON FOR SHRA. OTHERWISE...FA SHOULD REMAIN BETWEEN SYSTEMS AND WILL FORECAST TEMPS CLOSE TO CLIMO. && .AVIATION... MAIN SHORT-TERM AVIATION CONCERN IS THE TIMING OF CURRENT MCS MOVING ACROSS THE REGION. WILL HANDLE CONVECTION WITH FM AND TEMPOS THROUGH 22Z. FOR THE REST OF THE EVENING AND NIGHTTIME WILL EXPECT THE DEVELOPMENT OF FOG AND LOW CLOUDS. BY LATE TONIGHT...WILL FORECAST THAT TERMINALS WILL SEE IFR TO LIFR CONDITIONS. MIXING SHOULD BE FAIRLY QUICK AFTER SUNRISE...WILL BRING CONDITIONS TO VFR BY 15Z. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SHORT TERM...HG LONG TERM...NED AVIATION...NED
Hazardous weather outlook, Feb 21, 6:00 AM EST, 11 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 600 AM EST MON FEB 21 2005 GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-221100- ABBEVILLE SC-ALEXANDER NC-ANDERSON SC-AVERY NC-BUNCOMBE NC-BURKE NC- CABARRUS NC-CALDWELL NC-CATAWBA NC-CHEROKEE SC-CHESTER SC- CLEVELAND NC-DAVIE NC-ELBERT GA-FRANKLIN GA-GASTON NC-GRAHAM NC- GREATER GREENVILLE SC-GREATER OCONEE SC-GREATER PICKENS SC- GREENVILLE MOUNTAINS SC-GREENWOOD SC-HABERSHAM GA-HART GA-HAYWOOD NC- HENDERSON NC-IREDELL NC-LAURENS SC-LINCOLN NC-MACON NC-MADISON NC- MCDOWELL NC-MECKLENBURG NC-MITCHELL NC-NORTHERN JACKSON NC- OCONEE MOUNTAINS SC-PICKENS MOUNTAINS SC-POLK NC-RABUN GA-ROWAN NC- RUTHERFORD NC-SOUTHERN JACKSON NC-SPARTANBURG SC-STEPHENS GA- SWAIN NC-TRANSYLVANIA NC-UNION SC-UNION NC-YANCEY NC-YORK SC- 600 AM EST MON FEB 21 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA... UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA. .DAY ONE... WIDESPREAD SHOWERS WITH SCATTERED THUNDERSTORMS WILL OCCUR THIS MORNING. SHOWERS WILL DIMINISH THIS AFTERNOON...BUT SCATTERED THUNDERSTORMS WILL CONTINUE. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. RWH
In the hours before
Local storm report, Feb 21, 12:59 PM EST, 4 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1259 PM EST MON FEB 21 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1248 PM HAIL BRYSON CITY 35.43N 83.45W
02/21/2005 0.88 INCH SWAIN NC POST OFFICE
THE BRYSON CITY POST OFFICE REPORTED NICKEL SIZED HAIL
WHICH WAS ENOUGH TO MAKE THE GROUND WHITE.
&&
OUTLAWLocal storm report, Feb 21, 1:23 PM EST, 4 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
123 PM EST MON FEB 21 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1250 PM TSTM WND DMG 10 NW FRANKLIN 35.28N 83.51W
02/21/2005 MACON NC COUNTY OFFICIAL
MACON COUNTY COMMS CENTER REPORTED A FEW TREES DOWN IN
THE NORTHERN PART OF THE COUNTY WHEN THE LINE OF STORMS
PASSED THROUGH BEFORE 1 PM.
&&
OUTLAWLocal storm report, Feb 21, 1:30 PM EST, 4 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
130 PM EST MON FEB 21 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1230 PM TSTM WND DMG ROBBINSVILLE 35.32N 83.81W
02/21/2005 GRAHAM NC COUNTY OFFICIAL
GRAHAM COUNTY COMMS CENTER REPORTED NUMEROUS TREES DOWN
ACROSS THE COUNTY. A TRANSFORMER DOWN AT LOWER PANTHER
CREEK.
&&
OUTLAWSpecial weather statement, Feb 21, 5:09 PM EST, 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 509 PM EST MON FEB 21 2005 GAZ010-017-212300- HABERSHAM-RABUN- INCLUDING THE CITIES OF...CLARKESVILLE...CLAYTON 509 PM EST MON FEB 21 2005 ...STRONG THUNDERSTORM TO AFFECT THE NORTHEAST GEORGIA MOUNTAINS THROUGH 6 PM... AT 505 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM MOVING SOUTHEAST AT 50 MPH ACROSS TOWNS AND WHITE COUNTIES IN NORTHEAST GEORGIA. THIS THUNDERSTORM WILL MOVE ALONG THE BORDER BETWEEN RABUN AND HABERSHAM COUNTIES THROUGH 6 PM. SMALL HAIL AND WIND GUSTS TO 40 MPH WILL BE VERY POSSIBLE WITH THIS THUNDERSTORM. MOST LIKELY TO BE AFFECTED ARE THE TOWNS OF BATESVILLE...TURNERVILLE...AND TALLULAH FALLS THROUGH 6 PM. HG
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 6:03 PM EST | Severe Thunderstorm Warning | GSP | Anderson | 57 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2005Every severe thunderstorm warning in 2005
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.