Alert archive / North Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 340, NWS Greenville-Spartanburg, SC

July 26, 2010Davie County, Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 26, 2010, 11:43 PM EDT for Davie County, Rowan County, North Carolina. It was in force for 33 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
Jul 26, 2010, 11:43 PM EDT (03:43 UTC)
Expired
Jul 27, 2010, 12:16 AM EDT
In force
33 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Davie County, NC, Rowan County, NC

The radar

The Roanoke radar (KFCX), 140 km from the middle of the area, began a volume at 03:45 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 3.7 hours before the alert went out and 66 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, Greensboro/Hi Pt, NC at 00:00Z on 2010-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 576 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, Greensboro/Hi Pt, NC at 00:00Z on 2010-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 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
576 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1585 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

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 Jul 26, 7:33 PM EDT, 4 hours 10 minutes earlier.

Area forecast discussion, Jul 26, 7:33 PM EDT, 4 hours 10 minutes before
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Hazardous weather outlook, Jul 26, 3:31 PM EDT, 8 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
331 PM EDT MON JUL 26 2010

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-271945-
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-
331 PM EDT MON JUL 26 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.

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS THE REGION
LATE THIS AFTERNOON INTO THIS EVENING. THE MAIN THREAT FROM THESE
STORMS WILL BE HEAVY RAIN AND FREQUENT LIGHTNING. THUNDERSTORMS
WILL HAVE THE TENDENCY TO AFFECT THE SAME LOCATION MULTIPLE
TIMES...A PROCESS KNOWN AS TRAINING. WHERE THIS OCCURS...THERE
WILL BE A THREAT OF FLASH FLOODING...THOUGH THE DRY GROUND SHOULD
KEEP FLOODING FROM BECOMING WIDESPREAD ENOUGH TO WARRANT A WATCH.
THE STRONGEST STORMS WILL ALSO THE HAVE POTENTIAL TO PRODUCE
DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Local storm report, Jul 26, 6:30 PM EDT, 5 hours 13 minutes before
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Local storm report, Jul 26, 6:46 PM EDT, 4 hours 57 minutes before
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Special weather statement, Jul 26, 7:33 PM EDT, 4 hours 10 minutes before
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Local storm report, Jul 26, 7:42 PM EDT, 4 hours 1 minute before
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Special weather statement, Jul 26, 7:49 PM EDT, 3 hours 54 minutes before
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Local storm report, Jul 26, 7:53 PM EDT, 3 hours 50 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 8:36 PM EDTSpecial Weather StatementGSPMitchell39 min
Jul 26, 9:04 PM EDTSpecial Weather StatementGSPUnion41 min
Jul 26, 9:05 PM EDTAreal Flood AdvisoryGSPCaldwell115 min
Jul 26, 9:14 PM EDTSpecial Weather StatementGSPBurke46 min
Jul 26, 9:22 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell68 min
Jul 26, 9:39 PM EDTSpecial Weather StatementGSPMitchell51 min
Jul 26, 9:46 PM EDTSpecial Weather StatementGSPUnion44 min
Jul 26, 9:56 PM EDTSevere Thunderstorm WarningGSPAvery, Burke, Caldwell, McDowell41 min
Jul 26, 10:07 PM EDTSpecial Weather StatementGSPIredell53 min
Jul 26, 10:09 PM EDTSevere Thunderstorm WarningGSPIredell66 min
Jul 26, 10:16 PM EDTSpecial Weather StatementGSPCatawba44 min
Jul 26, 10:41 PM EDTAreal Flood AdvisoryGSPCatawba, Iredell109 min
Jul 26, 10:49 PM EDTSpecial Weather StatementGSPRowan41 min
Jul 26, 11:12 PM EDTSpecial Weather StatementGSPCatawba, Lincoln, Rowan48 min
Jul 26, 11:33 PM EDTSpecial Weather StatementGSPDavie, Rowan42 min
Jul 27, 8:10 AM EDTSpecial Weather StatementGSPRowan50 min
Jul 27, 8:31 AM EDTAreal Flood AdvisoryGSPRowan59 min
Jul 27, 9:06 AM EDTAreal Flood AdvisoryGSPCabarrus, Rowan114 min
Jul 27, 1:13 PM EDTSevere Thunderstorm WarningGSPMcDowell62 min
Jul 27, 1:34 PM EDTSpecial Weather StatementGSPTransylvania41 min
Jul 27, 2:12 PM EDTSevere Thunderstorm WarningGSPMcDowell, Rutherford44 min
Jul 27, 2:28 PM EDTSpecial Weather StatementGSPHenderson47 min
Jul 27, 2:58 PM EDTSpecial Weather StatementGSPPolk47 min
Jul 27, 3:26 PM EDTSpecial Weather StatementGSPRutherford49 min
Jul 27, 3:41 PM EDTAreal Flood AdvisoryGSPDavie49 min
Jul 27, 4:00 PM EDTSpecial Weather StatementGSPCleveland45 min
Jul 27, 4:01 PM EDTAreal Flood AdvisoryGSPRowan119 min
Jul 27, 4:28 PM EDTSpecial Weather StatementGSPRowan62 min
Jul 27, 4:50 PM EDTSpecial Weather StatementGSPUnion40 min
Jul 27, 5:00 PM EDTAreal Flood AdvisoryGSPRowan2 hr
Jul 27, 5:37 PM EDTAreal Flood AdvisoryGSPCabarrus, Rowan113 min
Jul 27, 5:50 PM EDTAreal Flood AdvisoryGSPCatawba, Lincoln115 min
Jul 27, 5:56 PM EDTAreal Flood AdvisoryGSPIredell109 min
Jul 27, 6:00 PM EDTSpecial Weather StatementGSPCabarrus45 min
Jul 27, 6:04 PM EDTAreal Flood AdvisoryGSPAlexander116 min
Jul 27, 6:19 PM EDTFlash Flood WarningGSPCabarrus, Mecklenburg3 hr
Jul 27, 6:24 PM EDTFlash Flood WatchGSPAlexander, Cabarrus, Davie, Iredell, Mecklenburg, Rowan and 1 more10 hr
Jul 27, 6:26 PM EDTFlash Flood WarningGSPMecklenburg3 hr
Jul 27, 6:28 PM EDTSpecial Weather StatementGSPCabarrus, Mecklenburg, Union62 min
Jul 27, 6:53 PM EDTFlash Flood WarningGSPIredell3 hr
Jul 26, 8:15 PM EDTSpecial Weather StatementGSPGreenwood30 min
Jul 26, 8:19 PM EDTSpecial Weather StatementGSPAbbeville41 min
Jul 27, 2:49 PM EDTSpecial Weather StatementGSPSpartanburg41 min
Jul 27, 3:07 PM EDTSevere Thunderstorm WarningGSPGreenville, Spartanburg53 min
Jul 27, 3:53 PM EDTAreal Flood AdvisoryGSPGreenville, Spartanburg112 min
Jul 27, 4:24 PM EDTSpecial Weather StatementGSPCherokee51 min
Jul 27, 5:13 PM EDTSevere Thunderstorm WarningGSPChester, Union38 min
Jul 27, 5:30 PM EDTAreal Flood AdvisoryGSPChester, York2 hr

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.