Alert archive / South Carolina / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 211, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 17, 2005, 5:16 PM EDT for Anderson County, South Carolina. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 17, 2005, 5:16 PM EDT (21:16 UTC)
- Expired
- Aug 17, 2005, 6:02 PM EDT
- In force
- 46 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Anderson County, SC
The radar
The Greer radar (KGSP), 57 km from the middle of the area, began a volume at 21:17 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 17, 5:22 PM EDT | HAIL 1.75 | Anderson, SC | ANDERSON COUNTY COMMUNICATIONS CENTER REPORTED GOLF BALL SIZED HAIL FALLING AT THEIR LOCATION. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 6 minutes after it went out.
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, 9.3 hours before the alert went out and 214 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
- 954 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 1029 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 8 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 172116 SVRGSP SCC007-172215- /O.NEW.KGSP.SV.W.0211.050817T2116Z-050817T2215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 516 PM EDT WED AUG 17 2005 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN ANDERSON COUNTY IN UPSTATE SOUTH CAROLINA * UNTIL 615 PM EDT * AT 515 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 NEAR ANDERSON...AND MOVING SOUTHEAST AT 5 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... 7 MILES SOUTHWEST OF BELTON AROUND 545 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. LAT...LON 3459 8266 3443 8276 3429 8262 3450 8232 $$ RBN
1 follow-up statement
000 WWUS52 KGSP 172202 SVSGSP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 601 PM EDT WED AUG 17 2005 SCC007-172211- /O.CAN.KGSP.SV.W.0211.000000T0000Z-050817T2215Z/ ANDERSON SC- 601 PM EDT WED AUG 17 2005 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ANDERSON COUNTY IS CANCELLED... THE SEVERE THUNDERSTORM EARLIER OVER ANDERSON HAS WEAKENED AND DRIFTED SOUTH. THIS STORM NO LONGER POSES A THREAT OF DAMAGING WIND OR LARGE HAIL. LAT...LON 3459 8266 3443 8276 3429 8262 3450 8232 $$ RBN
What 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 17, 2:32 PM EDT, 2 hours 44 minutes earlier.
Area forecast discussion, Aug 17, 2:32 PM EDT, 2 hours 44 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 232 PM EDT WED AUG 17 2005 .SHORT TERM (TONIGHT THROUGH SATURDAY)... AN EMBEDDED SHORTWAVE RIDING EAST OVER THE FLAT SOUTHERN RIDGE WILL BRUSH THE NORTH CAROLINA MOUNTAINS TONIGHT. LOW LEVEL FLOW IS EXPECTED TO BECOME INCREASINGLY UPSLOPE INTO THE EASTERN ESCARPMENT OF THE MOUNTAINS AS WELL...WHICH COULD POSE A HYDRO PROBLEM WITH PREVAILING LIGHT WESTERLY FLOW ABOVE 700 MB. SOUTHWEST MOUNTAIN CONVECTION SHOULD CONTINUE TO BECOME INCREASINGLY WIDESPREAD BY EVENING...WITH VERY SLOWLY MOVING OR NEARLY ANCHORED CELLS NEAR THE BLUE RIDGE AND THE WESTERN FOOTHILLS. DIFFERENTIAL HEATING ALONG THE STALLED FRONT IS ALSO KEEPING SOME THERMAL CONTRAST IN PLACE...AND CONVERGENCE ALONG THE BOUNDARY SHOULD AID SCATTERED THUNDERSTORMS OVER THE PIEDMONT THROUGH EVENING...WITH MORE NUMEROUS THUNDERSTORMS OVER THE WESTERN UPSTATE...WHERE BOTH FRONTAL AND TERRAIN FORCING COULD COME INTO PLAY. ONGOING CONVECTION WILL BE MONITORED THROUGH ISSUANCE TIME...AND AN SPS HIGHLIGHTING THE HEAVY RAIN POTENTIAL WILL LIKELY BE NEEDED. A FLASH FLOOD WATCH REMAINS POSSIBLE...BUT THE THREAT AREA WILL BE DIFFICULT TO PIN DOWN. THE LOW LEVEL CONVERGENCE AXIS AND DEEPEST MOISTURE SHIFT BACK TO THE WESTERN FRINGE OF THE MOUNTAINS ON THURSDAY. THE SURFACE FRONT APPEARS TO HAVE NEARLY WASHED OUT ON THE NAM...WHILE DEEPER MOISTURE FROM NC TO VA KEEPS WEAK THERMAL PACKING IN PLACE ACROSS THE CWFA ON THE GFS. MORE ABUNDANT CLOUDS WILL KEEPS MAXES ONE TO TWO CATEGORIES COOLER IN MOST LOCATIONS. SLOWLY MOVING THUNDERSTORMS COULD FURTHER ENHANCE MOUNTAIN RAINFALL PROBLEMS FOR TOMORROW. BOTH THE NAM AND GFS SHOW A H5 S/W RIPPLING WITHIN THE NW FLOW OVER THE MID MISSISSIPPI VALLEY THU NIGHT. NAM DEPICTS THAT AN MCS WILL ACCOMPANY THE S/W...HOWEVER THE FEATURE FADES AS IT CROSSES THE MTNS 15Z FRI. PLAN TO KEEP LIKELY TO HIGH CHC POPS WEST TO EAST ACROSS THE CWA THU EVENING TO HANDLE DISSIPATING DAYTIME CONVECTION. BY FRI AFTERNOON...CAPES SHOULD POOL TO 2K J/KG. FWC AND MET MOS SUPPORTS CHC POPS RUNNING INTO FRI EVENING...WORDED FORECAST WILL USE 30% POP. && .LONG TERM (SATURDAY NIGHT THROUGH WEDNESDAY)... ECMWF AND GFS SHOW S/W RIDGING BUILDING OVER THE CWA DURING THE DAY ON SATURDAY AHEAD OF THE APPROACHING TROF. H85 TEMPS WARM TO 20C FROM THE SW WITH WEAK DOWNSLOPE FLOW. I BELIEVE THAT SATURDAY WILL BE THE WARMEST DAY OF THE WEEKEND AND EXTENDED PERIOD...WITH HIGHS REACHING INTO THE 90-95 RANGE EAST OF THE MTNS. THE WARM TEMPS WILL COMBINE WITH DWPTS IN THE L70S TO YIELD CAPES 2K-3K J/KG BY THE LATE AFTERNOON. LITTLE IS SEEN AS A CONVECTIVE TRIGGER...HOWEVER RIDGETOP CONVERGENCE SHOULD BE ENOUGH OF FOR INITIATION...STORMS SHOULD SPREAD EAST OFF THE MTNS DURING THE AFTERNOON. NATURALLY...COVERAGE WILL BE THE GREATEST OVER THE MTNS WITH LESSER AMOUNTS FURTHER EAST...WILL USE CHC POPS. CLOUD COVER SHOULD INCREASE MONDAY NIGHT OVER THE FA AS FRONTAL BOUNDARY MOVES ACROSS KY/TN. THE COLD FRONT SHOULD ENCOUNTER THE SOUTHERN APPALACHIANS MIDDAY SUN AND CONTINUE TO SLOWLY MOVE EAST DURING THE REST OF THE DAY. GFS CONVECTIVE SCHEMES DO NOT GENERATE A LARGE AMOUNT OF RAINFALL FROM THE EXPECTED CONVECTIVE LINE. WILL CARRY HIGH CHC/LOW LIKELY POPS FOR THE MTNS WITH 40-30% EAST. GIVEN THE TIMING OF THE FRONT...WILL KEEP TEMPS A FEW DEGREES COOLER THAN EXPECTED ON SAT. CHC WILL REMAIN IN THE EAST SUN NIGHT AS FRONT COMPLETES IT/S TRIP ACROSS THE FA. MON THROUGH WED...CANADIAN HIGH PRESSURE WILL BUILD OVER THE FA...WITH IT/S 1020+MB CENTER REMAINING NORTH OF THE WESTERN CAROLINAS. GFS HAS BEEN INCONSISTENT WITH THE POSITION AND TIMING OF THE FRONT POTENTIALLY STALLING OUT. GIVEN THE LATEST ECMWF/GFS/HPC GUIDANCE I WILL FORECAST THE HIGH TO TOTALLY COVER THE FA DURING THE PERIOD. TEMPERATURES SHOULD PAN OUT AROUND CLIMO WITH DWPTS RANGING IN THE LOW TO MID 60S EAST OF THE MTNS...EVEN BETTER IN THE MTNS. I KEPT A DIURNAL SLGT CHC EACH AFTERNOON AND EVENING. && .AVIATION... THUNDERSTORM COVERAGE WILL INCREASE ACROSS THE SOUTHWEST MOUNTAINS...THREATENING KAVL THROUGH THE LATE AFTERNOON AND EVENING HOURS. WITH LOW LEVEL EASTERLY UPSLOPE AND WESTERLY STEERING WINDS ABOVE 700 MB...THUNDERSTORMS WILL LIKELY TRIGGER NEAR THE HIGHER TERRAIN THROUGH THE EVENING HOURS. A SECONDARY MAXIMA OF THUNDERSTORMS IS LIKELY ALONG THE WEAK FRONTAL BOUNDARY ORIENTED WEST TO EAST ACROSS THE REGION. ASIDE FROM HIGHER COVERAGE NEAR KAVL...TSRA SHOULD REMAIN IN THE VICINITY FROM KAND TO KGSP TO KHKY...WITH SMALLER CHANCES NEAR KCLT. SOUTHEAST UPGLIDE AND UPSLOPE FLOW SHOULD STEADILY PRODUCE LOWERING MVFR CIG OVERNIGHT...WITH CONTINUED SCATTERED SHOWERS EXPECTED. THE OVERVIEW PERIOD SHOULD BE A RELATIVE LULL...BUT WITH FAIRLY SOLID MVFR OR SLOWLY IMPROVING VFR CIG BY NOON THU. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SHORT TERM...HG/NED LONG TERM...NED AVIATION...HG
Hazardous weather outlook, Aug 17, 6:21 AM EDT, 10 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 621 AM EDT WED AUG 17 2005 GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082- SCZ001>014-019-181030- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-CALDWELL- ALEXANDER-IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD- BUNCOMBE-MCDOWELL-BURKE-CATAWBA-ROWAN-GRAHAM-NORTHERN JACKSON- MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-POLK-RUTHERFORD- CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC- OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS- GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG- CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER- GREENWOOD- 621 AM EDT WED AUG 17 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF UPSTATE SOUTH CAROLINA...WESTERN NORTH CAROLINA...PIEDMONT NORTH CAROLINA AND NORTHEAST GEORGIA. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL ONCE AGAIN THREATEN THE REGION THIS AFTERNOON AND TONIGHT. LOCALLY STRONG STORMS ARE POSSIBLE... PRODUCING HEAVY RAIN...FREQUENT LIGHTNING AND GUSTY WIND. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A DAILY CHANCE OF THUNDERSTORMS CONTINUE INTO THE WEEKEND. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
In the hours before
Special weather statement, Aug 17, 3:42 PM EDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 342 PM EDT WED AUG 17 2005 GAZ010-017-018-NCZ033-034-049-050-053>055-059-062>067-SCZ001>007- 180400- RABUN-HABERSHAM-STEPHENS-AVERY-CALDWELL-YANCEY-MITCHELL-BUNCOMBE- MCDOWELL-BURKE-NORTHERN JACKSON-MACON-SOUTHERN JACKSON- TRANSYLVANIA-HENDERSON-POLK-RUTHERFORD-OCONEE MOUNTAINS- PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE- GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG- INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE...TOCCOA... NEWLAND...SPRUCE PINE...ASHEVILLE...MARION...MORGANTON...SYLVA... FRANKLIN...BREVARD...HENDERSONVILLE...COLUMBUS...RUTHERFORDTON... GREENVILLE...SPARTANBURG 342 PM EDT WED AUG 17 2005 ...HEAVY RAINFALL TO AFFECT THE MOUNTAINS AND WESTERN FOOTHILLS... SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGH THE EVENING ALONG THE EASTERN ESCARPMENT OF THE MOUNTAINS...FROM THE BLUE RIDGE IN NORTH CAROLINA...THROUGH THE UPSTATE MOUNTAINS...AND INTO NORTHEAST GEORGIA. THE THUNDERSTORMS WILL MOVE VERY SLOWLY OUT INTO THE ADJACENT FOOTHILLS...AND ADDITIONAL THUNDERSTORMS MAY REPEATEDLY DEVELOP ALONG THE HIGH TERRAIN. THESE THUNDERSTORMS WILL PRODUCE TORRENTIAL RAINFALL AT RATES AROUND AN INCH PER HOUR...AND SEVERAL THUNDERSTORMS COULD AFFECT THE SAME LOCATION. ISOLATED FLASH FLOODING WILL BE POSSIBLE IN AND NEAR THE HIGH TERRAIN...WITH THE HIGHEST RISK ACROSS THE EXTREME SOUTHERN APPALACHIANS. LOCATIONS FROM HENDERSONVILLE TO BREVARD TO CLAYTON GEORGIA HAVE ALREADY RECEIVED HEAVY RAINFALL TODAY...AND ADDITIONAL HEAVY RAINFALL WILL BE POSSIBLE THROUGH THE EVENING HOURS. THE NATIONAL WEATHER SERVICE WILL CLOSELY MONITOR THE DEVELOPMENT OF THESE HEAVY RAIN PRODUCING THUNDERSTORMS...AND FLASH FLOOD WATCHES OR WARNINGS COULD BE ISSUED IF THE HEAVY RAINFALL IS EXPECTED TO PERSIST IN ANY LOCATION. STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS FOR THE LATEST UPDATES. HG
Special weather statement, Aug 17, 4:50 PM EDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 450 PM EDT WED AUG 17 2005 NCZ068-172145- CLEVELAND- 450 PM EDT WED AUG 17 2005 ...A STRONG THUNDERSTORM WAS AFFECTING CLEVELAND COUNTY... AT 442 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR CASAR...OR 15 MILES NORTH OF SHELBY...MOVING SOUTHEAST AT 5 MPH. PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. INTENSE LIGHTNING IS 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. RB
Special weather statement, Aug 17, 5:15 PM EDT, 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 515 PM EDT WED AUG 17 2005 GAZ017-018-172215- HABERSHAM-STEPHENS- 515 PM EDT WED AUG 17 2005 ...A STRONG THUNDERSTORM WAS AFFECTING HABERSHAM AND STEPHENS COUNTIES... AT 508 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR INMAN...OR 10 MILES SOUTHEAST OF COLUMBUS. THIS STORM WAS MOVING SOUTHEAST AT 5 MPH. PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. INTENSE LIGHTNING IS 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. RB
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 5:51 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville | 23 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.