Alert archive / North Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 52, NWS Greenville-Spartanburg, SC

May 14, 20104 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 14, 2010, 8:09 PM EDT for 4 counties in North Carolina. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 14, 2010, 8:09 PM EDT (00:09 UTC)
Expired
May 14, 2010, 9:15 PM EDT
In force
66 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Buncombe County, NC, Henderson County, NC, McDowell County, NC, Rutherford County, NC

The radar

The Greer radar (KGSP), 69 km from the middle of the area, began a volume at 00:08 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.

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 0.2 hours before the alert went out and 310 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.

Skew-T log-pSkew-T log-p diagram, Roanoke, VA at 00:00Z on 2010-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 2010-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
6 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
2037 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 May 14, 7:25 PM EDT, 44 minutes earlier.

Area forecast discussion, May 14, 7:25 PM EDT, 44 minutes before
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Hazardous weather outlook, May 14, 3:33 PM EDT, 4 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
333 PM EDT FRI MAY 14 2010

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-151945-
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-
333 PM EDT FRI MAY 14 2010

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

CLUSTERS OF THUNDERSTORMS WILL DEVELOP OVER THE MOUNTAINS LATE THIS
AFTERNOON. THE THUNDERSTORMS WILL TRACK FROM WEST TO EAST...MOVING
OVER THE FOOTHILLS AND WESTERN PIEDMONT INTO THE EARLY EVENING.
SOME STORMS MAY BECOME SEVERE WITH DAMAGING WIND AND LARGE HAIL.
IN ADDITION...A FEW STORMS MAY PRODUCE ISOLATED AREAS OF EXCESSIVE
RAINFALL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THUNDERSTORMS ARE EXPECTED AGAIN ON SATURDAY AS A COLD FRONT
STALLS OVER THE REGION. SOME OF THESE STORMS MAY ALSO BECOME
SEVERE WITH DAMAGING WIND AND LARGE HAIL. IN ADDITION...SOME OF
THESE STORMS MAY PRODUCE AREAS OF EXCESSIVE RAINFALL.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, May 14, 6:33 PM EDT, 1 hour 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
633 PM EDT FRI MAY 14 2010

NCZ049-050-505-142300-
MCDOWELL MOUNTAINS-MITCHELL-YANCEY-
633 PM EDT FRI MAY 14 2010

...A STRONG THUNDERSTORM WILL AFFECT EASTERN YANCEY...NORTHERN
MCDOWELL AND SOUTHEASTERN MITCHELL COUNTIES THROUGH 700 PM EDT...

AT 630 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES SOUTHWEST OF MICAVILLE...OR 5 MILES
SOUTHEAST OF BURNSVILLE...MOVING NORTHEAST AT 20 MPH.

THE AREA BETWEEN CELO AND BURNSVILLE...AND THEN FROM SPRUCE PINE TO
NEWLAND...WILL MAINLY BE AFFECTED BY THIS THUNDERSTORM THROUGH 7 PM.
PEA SIZE HAIL...VERY HEAVY RAINFALL...AND WIND GUSTS OF 30 TO 40 MPH
ARE EXPECTED WITH THIS THUNDERSTORM.

LAT...LON 3601 8204 3596 8205 3590 8199 3590 8196
      3592 8195 3594 8196 3595 8194 3590 8191
      3587 8191 3574 8227 3590 8238 3606 8207

HG
Special weather statement, May 14, 6:35 PM EDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
635 PM EDT FRI MAY 14 2010

NCZ048-053-142300-
BUNCOMBE-MADISON-
635 PM EDT FRI MAY 14 2010

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN BUNCOMBE AND
SOUTHERN MADISON COUNTIES THROUGH 700 PM EDT...

AT 630 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CANTON...OR 12 MILES NORTHEAST OF
WAYNESVILLE...MOVING NORTHEAST AT 10 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO MARSHALL...
  CANTO...WOODFIN...WEAVERVILLE...LEICESTER AND CANDLER.

PEA SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3573 8250 3551 8270 3554 8277 3557 8277
      3560 8280 3562 8282 3562 8284 3564 8287
      3585 8273

JPT
Special weather statement, May 14, 6:48 PM EDT, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
648 PM EDT FRI MAY 14 2010

NCZ048-049-053-142315-
BUNCOMBE-MADISON-YANCEY-
648 PM EDT FRI MAY 14 2010

...A STRONG THUNDERSTORM WILL AFFECT EASTERN MADISON...NORTHEASTERN
BUNCOMBE AND SOUTHWESTERN YANCEY COUNTIES THROUGH 715 PM EDT...

AT 648 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MARS HILL...OR 9 MILES EAST OF MARSHALL...
MOVING EAST AT 15 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO MOUNT
  MITCHELL STATE PARK...MARS HILL...WEAVERVILLE AND BARNARDSVILLE.

PEA SIZE HAIL...VERY HEAVY RAINFALL...AND WIND GUSTS OF 30 TO 40 MPH
ARE EXPECTED WITH THIS STORM.

LAT...LON 3594 8230 3571 8225 3568 8260 3586 8264

HG
Special weather statement, May 14, 7:21 PM EDT, 48 minutes before
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Local storm report, May 14, 7:55 PM EDT, 14 minutes before
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Local storm report, May 14, 7:57 PM EDT, 12 minutes before
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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 14, 8:29 PM EDTSevere Thunderstorm WarningGSPAlexander, Burke, Caldwell, Catawba, Davie, Iredell and 1 more76 min
May 14, 8:42 PM EDTAreal Flood AdvisoryGSPBuncombe, Burke, Caldwell, Henderson, McDowell, Rutherford116 min
May 14, 9:53 PM EDTSpecial Weather StatementGSPCatawba, Cleveland, Davie, Iredell, Lincoln, Polk and 1 more67 min
May 14, 10:34 PM EDTSpecial Weather StatementGSPCabarrus, Cleveland, Davie, Gaston, Lincoln, Mecklenburg and 3 more41 min
May 14, 11:01 PM EDTSpecial Weather StatementGSPCabarrus, Gaston, Mecklenburg, Rowan44 min
May 15, 1:19 PM EDTSevere Thunderstorm WarningGSPBuncombe, Haywood, Henderson, Transylvania56 min
May 15, 1:50 PM EDTSevere Thunderstorm WarningGSPJackson, Macon55 min
May 15, 2:17 PM EDTSevere Thunderstorm WarningGSPTransylvania58 min
May 15, 3:06 PM EDTSevere Thunderstorm WarningGSPBuncombe, Haywood, Madison42 min
May 15, 3:13 PM EDTSevere Thunderstorm WarningGSPTransylvania32 min
May 15, 3:38 PM EDTSevere Thunderstorm WarningGSPMacon67 min
May 15, 5:00 PM EDTSpecial Weather StatementGSPAvery45 min
May 15, 5:43 PM EDTSevere Thunderstorm WarningGSPCaldwell62 min
May 15, 5:55 PM EDTSpecial Weather StatementGSPMecklenburg50 min
May 15, 6:16 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg37 min
May 15, 6:52 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg23 min
May 15, 2:56 PM EDTSevere Thunderstorm WarningGSPGreenville, Pickens64 min
May 15, 3:42 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg63 min
May 15, 3:53 PM EDTSevere Thunderstorm WarningGSPGreenville67 min
May 15, 4:50 PM EDTSevere Thunderstorm WarningGSPSpartanburg55 min
May 15, 4:53 PM EDTSevere Thunderstorm WarningGSPOconee32 min
May 15, 4:56 PM EDTSevere Thunderstorm WarningGSPGreenville, Spartanburg64 min
May 15, 5:44 PM EDTSevere Thunderstorm WarningGSPSpartanburg33 min
May 15, 3:33 PM EDTSpecial Weather StatementGSPRabun42 min

Nearby

Severe Thunderstorm Warnings in North 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.