Alert archive / South Carolina / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 13, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 28, 2010, 7:15 PM EDT for Cherokee County, Spartanburg County, York County, South Carolina. It was in force for 60 min. 8 reports 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
- Mar 28, 2010, 7:15 PM EDT (23:15 UTC)
- Expired
- Mar 28, 2010, 8:15 PM EDT
- In force
- 60 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
Counties Cherokee County, SC, Spartanburg County, SC, York County, SC
The radar
The Greer radar (KGSP), 59 km from the middle of the area, began a volume at 23:19 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 |
|---|---|---|---|
| Mar 28, 7:34 PM EDT | TSTM WND DMG | 2 E Cowpens, SC | SEVERAL TREES DOWN. |
| Mar 28, 7:34 PM EDT | HAIL 1 | 2 E Cowpens, SC | |
| Mar 28, 7:35 PM EDT | TSTM WND DMG | 5 Ne Spartanburg, SC | LARGE TREES REPORTED BLOWN DOWN IN THE CANNONS-CAMPGROUND AREA. |
| Mar 28, 7:47 PM EDT | HAIL 1.75 | Gaffney, SC | |
| Mar 28, 7:48 PM EDT | HAIL 1.75 | Gaffney, SC | HWY 18 AND EDGEWATER DR SOUTH OF GAFFNEY |
| Mar 28, 7:55 PM EDT | HAIL 1 | Gaffney, SC | QUARTER SIZE HAIL AT I85 AND HWY 18 |
| Mar 28, 7:56 PM EDT | HAIL 1.25 | Gaffney, SC | |
| Mar 28, 8:10 PM EDT | TSTM WND DMG | 3 Se Blacksburg, SC | TREES KNOCKED DOWN |
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 8 storm reports to this severe thunderstorm warning; the first came 19 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 28, 3:47 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.3 hours before the alert went out and 195 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 595 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 289 m²/s²
- 0-3 km storm-relative helicity
- 318 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
788
WUUS52 KGSP 282315
SVRGSP
SCC021-083-091-290015-
/O.NEW.KGSP.SV.W.0013.100328T2315Z-100329T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
715 PM EDT SUN MAR 28 2010
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CHEROKEE COUNTY IN UPSTATE SOUTH CAROLINA...
THIS INCLUDES THE CITY OF GAFFNEY...
EAST CENTRAL SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA...
NORTHWESTERN YORK COUNTY IN UPSTATE SOUTH CAROLINA...
* UNTIL 815 PM EDT
* AT 709 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED 15 MILES SOUTHWEST OF COWPENS...OR 7 MILES WEST
OF SPARTANBURG...AND MOVING EAST AT 55 MPH.
* LOCATIONS IMPACTED INCLUDE...
COWPENS AND PACOLET MILLS...
THICKETTY...
GAFFNEY...
BLACKSBURG AND HICKORY GROVE...
SMYRNA AND SHARON...
KINGS MOUNTAIN STATE PARK...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR INDICATES ROTATION ASSOCIATED WITH THIS SEVERE
THUNDERSTORM. IF IT CONTINUES TO STRENGTHEN...A TORNADO WARNING MAY
BE ISSUED. REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT SUNDAY EVENING
FOR NORTHEAST GEORGIA AND WESTERN NORTH CAROLINA AND CENTRAL SOUTH
CAROLINA.
&&
LAT...LON 3494 8133 3490 8167 3491 8170 3489 8172
3487 8188 3508 8190 3517 8142 3516 8132
TIME...MOT...LOC 2314Z 251DEG 48KT 3494 8197
$$
MCAVOYWhat 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 Mar 28, 2:26 PM EDT, 4 hours 49 minutes earlier.
Area forecast discussion, Mar 28, 2:26 PM EDT, 4 hours 49 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 226 PM EDT SUN MAR 28 2010 .SYNOPSIS... A COLD FRONT WILL MOVE ACROSS THE SOUTHEAST FROM THE TENNESSEE VALLEY TODAY...AS LOW PRESSURE MOVES ACROSS THE OHIO VALLEY. THE COLD FRONT ALONG WITH THE ASSOCIATED LOW WILL REACH THE CAROLINA COAST EARLY MONDAY AND THEN MOVE NORTH. DRY HIGH PRESSURE WILL THEN...BUILD INTO THE REGION AND REMAIN OVER THE AREA THOUGH THE REMAINDER OF THE WEEK. && .NEAR TERM /THROUGH MONDAY/... SHOWERS CONTINUE TO DEVELOP AND MOVE NE ACROSS THE REGION AS A STRONG SHORTWAVE APPROACHES FROM THE W. MODELS CONT TO SHOW CAPE OF 400-600 J/KG MOVG IN FROM THE S THIS AFTN WITH PVA...Q FORCING... WIND SHEAR AND UPPER LEVEL DIVERGENCE ALL COMING TOGETHER OVER THE AREA. SATELLITE LOOPS ARE SHOWING SOME BREAKS IN THE CLOUDS MOVG IN FROM THE SW SO IF AREA DESTABILIZES ENOUGH EXPECT AT LEAST A FEW SEVERE STORMS TO DEVELOP. SPC HAS GA AND THE CAROLINAS IN AN AREA OF SLIGHT RISK FOR SEVERE STORMS...MAINLY THIS AFTN-EVE. ANY STRONG CONVECTION THAT DOES DEVELOP SHOULD TAPER OFF FROM THE W LATE THIS EVE WITH COOLING BUT SHWRS WILL LINGER OVERNIGHT...ESPECIALLY OVER THE MTNS AND E CWA. MIN TEMPS WILL BE MILD TONIGHT DUE TO THE CLOUD COVER. UPPER LOW MOVES OVER AREA DURING THE DAY MON AND ENOUGH FORCING AND LL MOISTURE IS EXPECTED FOR CHC SHWRS THRU THE DAY...ESP OVER THE MTNS AND E ZONES. HI TEMPS WILL BE BELOW AVG. && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/... AS OF 2 PM EDT SUNDAY...AN UPPER LEVEL LOW OVER NC MONDAY EVENING WILL OFF THE MID ATLANTIC COAST ON TUESDAY. AN UPPER RIDGE WILL CROSS THE MS RIVER ON TUESDAY NIGHT...AND REACH THE TN AND OH RIVER VALLEYS ON WEDNESDAY. WEAK MOIST NORTHWEST FLOW WILL PERSIST MONDAY NIGHT AND SUPPORT SCATTERED SHOWERS IN UPSLOPE FLOW ALONG THE TN BORDER. FREEZING LEVELS DROP BELOW THE HIGHER PEAKS OF THE NC MOUNTAINS BY DAWN TUESDAY...BUT WITH THE TOP OF THE MOIST LAYER NOT VERY COLD...ICE NUCLEATION IS NOT A SURE THING. DRYING OCCURS LATE TUESDAY MORNING. ON TUESDAY THE PRESSURE GRADIENT GRADUALLY RELAXES. SURFACE RIDGING BUILDS IN FORM THE SOUTHWEST ON TUESDAY NIGHT AND WEDNESDAY. MINIMUM TEMPERATURES WILL TREND DOWNWARD FROM NEAR NORMAL...AND MAXIMUM TEMPERATURES UPWARD FROM NEAR NORMAL...AS DRIER AIR ALLOWS FOR A GREATER DIURNAL RANGE. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... AS PM 2 PM EDT SUNDAY...THE SLOWER SOLUTION OF THE ECMWF WAS PREFERRED BY HPC OVER THE FASTER GFS. A SLOWLY PROGRESSIVE UPPER RIDGE WILL AMPLIFY OVER THE EASTERN USA FROM THURSDAY THROUGH SUNDAY...SUPPORTING WARM AND DRY CONDITIONS. TEMPERATURES WILL RISE TO 10 DEGREES OR MORE ABOVE NORMAL BY THE WEEKEND. && .AVIATION /19Z SUNDAY THROUGH FRIDAY/... AT KCLT AND ELSEWHERE...THERE COULD BE BREAKS WHERE CIGS GO VFR BUT EXPECT PREDOMINANT MVFR/IFR CIGS WITH OCNL IFR VSBY...ESP IN HEAVY SHWRS. CB CLOUDS INCLUDED IN TAFS TO ACCOUNT FOR SCT TSTMS AND SOME STORMS COULD BE SVR...MAINLY LATE AFTN-EARLY EVE. SE TO S WINDS WILL BE GUSTY AT TIMES...ESP NEAR CONVECTION. GUIDANCE STILL AT ODDS ON WHETHER TO LIFT CIGS OVERNIGHT WITH GFS MOST PESSIMISTIC. THERE IS A LOT OF CONFLICTING GUIDANCE WITH NAM MOST QUESTIONABLE...SO LEANING TOWARD GFS/SREF BLEND. EXPECT IMPORVEMENT TO AT LEAST MVFR MON MRNG. OUTLOOK...EXPECT CONDITIONS TO IMPROVE TO VFR BY LATE MON AND CONTINUE VFR TUE-FRI AS HIGH PRESSURE BUILDS OVER THE REGION. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SYNOPSIS...PAT NEAR TERM...RB SHORT TERM...JAT LONG TERM...JAT AVIATION...RB
Hazardous weather outlook, Mar 28, 6:43 AM EDT, 12 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 643 AM EDT SUN MAR 28 2010 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-291045- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER- IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA- ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA- HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC- 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- 643 AM EDT SUN MAR 28 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. A COLD FRONT AND AN ASSOCIATED AREA OF SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS THE TENNESSEE VALLEY THIS MORNING. BY THE TIME THE FRONT MOVES INTO THE SOUTHERN APPALACHIANS AND SURROUNDING AREAS THIS AFTERNOON...THE ATMOSPHERE WILL BE WEAKLY UNSTABLE ACROSS THE REGION. THIS WILL COMBINE WITH VERY STRONG WINDS ALOFT TO ALLOW THE LINE OF SHOWERS AND THUNDERSTORMS TO INTENSIFY AS IT MOVES EAST ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA DURING THE AFTERNOON AND EVENING. IT APPEARS LIKELY THAT ISOLATED STORMS EMBEDDED WITHIN THE LINE COULD PRODUCE SEVERE WEATHER... WITH LARGE HAIL AND DAMAGING WINDS BEING THE MAIN THREAT. HOWEVER...THERE WILL ALSO BE A THREAT OF ISOLATED TORNADOES... ESPECIALLY WITH ANY SCATTERED THUNDERSTORMS THAT DEVELOP OUT AHEAD OF THE MAIN LINE OF SHOWERS AND STORMS. ALTHOUGH SEVERE WEATHER WILL BE POSSIBLE ANYWHERE ACROSS THE AREA...THE MOST LIKELY LOCATIONS TO SEE LARGE HAIL...DAMAGING WINDS...AND TORNADOES THIS AFTERNOON AND EVENING WILL BE ACROSS UPSTATE SOUTH CAROLINA AND NORTHEAST GEORGIA. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE. LANE
In the hours before
Local storm report, Mar 28, 6:49 PM EDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
649 PM EDT SUN MAR 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0640 PM HAIL TRAVELERS REST 34.97N 82.44W
03/28/2010 E1.00 INCH GREENVILLE SC TRAINED SPOTTER
QUARTER SIZE HAIL REPORTED.
&&
ASTUREYLocal storm report, Mar 28, 6:58 PM EDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
658 PM EDT SUN MAR 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0640 PM HAIL GREENVILLE 34.84N 82.37W
03/28/2010 E1.00 INCH GREENVILLE SC TRAINED SPOTTER
ONE INCH HAIL REPORTED CHERRYDALE AREA.
&&
ASTUREYLocal storm report, Mar 28, 6:59 PM EDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
659 PM EDT SUN MAR 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0644 PM HAIL GREENVILLE 34.84N 82.37W
03/28/2010 E1.00 INCH GREENVILLE SC TRAINED SPOTTER
QUARTER SIZE HAIL REPORTED IN TIGERVILLE
&&
ASTUREYLocal storm report, Mar 28, 7:10 PM EDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
710 PM EDT SUN MAR 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0638 PM HAIL 3 W GREENVILLE 34.84N 82.42W
03/28/2010 E1.00 INCH GREENVILLE SC TRAINED SPOTTER
HAIL FROM PEA SIZED TO QUARTER SIZED FALLING NEAR WHERE
HIGHWAY 123 AND FARIS ROAD ARE ON THE WEST SIDE.
0654 PM HAIL 4 NW GREER 34.98N 82.28W
03/28/2010 E1.00 INCH GREENVILLE SC NWS EMPLOYEE
QUARTER SIZED HAIL
0648 PM HAIL 3 NNW TAYLORS 34.96N 82.33W
03/28/2010 E1.75 INCH GREENVILLE SC TRAINED SPOTTER
PEEBLE CREEK AREA WITH GOLF BALL SIZED HAIL
0658 PM HAIL 4 SW GREER 34.90N 82.28W
03/28/2010 E1.75 INCH GREENVILLE SC TRAINED SPOTTER
AT THE INTERSECTION OF BATESVILLE ROAD AND OLD
SPARTANBURG ROAD A REPORT OF GOLF BALL SIZED HAIL. DIME
SIZED HAIL JUST AFTER THIS AT THE GSP AIRPORT.
&&
OUTLAWLocal storm report, Mar 28, 7:13 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
713 PM EDT SUN MAR 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0650 PM HAIL GREENVILLE 34.84N 82.37W
03/28/2010 E1.00 INCH GREENVILLE SC NWS EMPLOYEE
ONE INCH SIZE HAIL REPORTED IN TAYLORS
&&
ASTUREYSpecial weather statement, Mar 28, 7:14 PM EDT, 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 714 PM EDT SUN MAR 28 2010 NCZ035>037-056-282345- ALEXANDER-CATAWBA-DAVIE-IREDELL- 714 PM EDT SUN MAR 28 2010 ...A STRONG THUNDERSTORM WILL AFFECT EASTERN ALEXANDER...NORTHERN CATAWBA...NORTHERN DAVIE AND NORTHERN IREDELL COUNTIES THROUGH 745 PM EDT... AT 709 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR CLAREMONT...OR 7 MILES NORTHEAST OF NEWTON...MOVING NORTHEAST AT 50 MPH. * OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO BERMUDA RUN...LOOKOUT SHOALS LAKE...UNION GROVE...TURNERSBURG... STATESVILLE...SCOTTS...LOVE VALLEY...HARMONY...SHEFFIELD... FARMINGTON...STONY POINT...MILLERSVILLE...HIDDENITE...CLAREMONT AND CATAWBA. SMALL HAIL...VERY HEAVY RAINFALL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. 07
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 6:07 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Spartanburg | 53 min |
| Mar 28, 6:16 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Greenville, Pickens | 59 min |
| Mar 28, 6:41 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Spartanburg | 64 min |
| Mar 28, 7:06 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg | 54 min |
| Mar 28, 7:19 PM EDT | Tornado Warning | GSP | Cherokee, Spartanburg, York | 41 min |
| Mar 28, 7:25 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Laurens, Spartanburg | 65 min |
| Mar 28, 7:55 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood | 53 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2010Every severe thunderstorm warning in 2010
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.