Alert archive / North Carolina / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 18, NWS Greenville-Spartanburg, SC

April 12, 2013Davie County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 12, 2013, 3:58 AM EDT for Davie County, North Carolina. It was in force for 32 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: Apr 12, 2013, 3:58 AM EDT (07:58 UTC)
Expired: Apr 12, 2013, 4:30 AM EDT
In force: 32 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

County Davie County, NC

The radar

The Roanoke radar (KFCX), 124 km from the middle of the area, began a volume at 08:01 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 11, 8:24 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 8.0 hours before the alert went out and 60 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 29 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 1610 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 100 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 Apr 12, 3:03 AM EDT, 55 minutes earlier.

Area forecast discussion, Apr 12, 3:03 AM EDT, 55 minutes before

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Hazardous weather outlook, Apr 11, 8:32 PM EDT, 7 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
832 PM EDT THU APR 11 2013

GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-501>510-
SCZ001>014-019-130045-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-ALEXANDER-IREDELL-
DAVIE-CATAWBA-ROWAN-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-
832 PM EDT THU APR 11 2013

...TORNADO WATCH 101 IN EFFECT UNTIL 4 AM EDT FRIDAY...

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

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   TORNADO WATCH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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.

NCZ033-048>053-058-059-062>065-130045-
AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM-
NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-
832 PM EDT THU APR 11 2013

...TORNADO WATCH 100 IN EFFECT UNTIL 2 AM EDT FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   TORNADO WATCH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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.

ARK

In the hours before

Special weather statement, Apr 11, 11:05 PM EDT, 4 hours 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1105 PM EDT THU APR 11 2013

GAZ018-026-SCZ001-004-120345-
FRANKLIN-GREATER OCONEE-OCONEE MOUNTAINS-STEPHENS-
1105 PM EDT THU APR 11 2013

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN FRANKLIN...
SOUTHWESTERN OCONEE AND STEPHENS COUNTIES THROUGH 1145 PM EDT...

AT 1056 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES EAST OF HOMER...MOVING NORTHEAST AT 45
MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  EASTANOLEE...
  TOCCOA...
  LAKE HARTWELL...
  WESTMINSTER...

PEA SIZE HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS
STORM.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3432 8340 3442 8339 3446 8340 3448 8346
      3466 8338 3469 8334 3471 8335 3482 8330
      3464 8301 3428 8336

MCAVOY

Special weather statement, Apr 11, 11:28 PM EDT, 4 hours 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1128 PM EDT THU APR 11 2013

SCZ006-007-010>012-019-120415-
ABBEVILLE-ANDERSON-GREATER GREENVILLE-GREENWOOD-LAURENS-SPARTANBURG-
1128 PM EDT THU APR 11 2013

...STRONG THUNDERSTORMS WILL AFFECT EASTERN ABBEVILLE...LAURENS...
NORTHEASTERN ANDERSON...NORTHWESTERN GREENWOOD...SOUTHEASTERN
GREENVILLE AND SPARTANBURG COUNTIES THROUGH 1215 AM EDT...

AT 1122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM BELTON TO 3 MILES
NORTHWEST OF VERDERY...MOVING NORTHEAST AT 55 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  WILLIAMSTON...
  PIEDMONT...
  MAULDIN...
  SIMPSONVILLE...
  GREENVILLE...
  LAKE ROBINSON...

WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THESE STORMS.

PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
SPECIFIC LOCATION WHERE IT OCCURRED.

LAT...LON 3401 8228 3459 8257 3504 8229 3507 8222
      3516 8222 3519 8220 3473 8181 3462 8185
      3459 8183

LANE

Special weather statement, Apr 11, 11:46 PM EDT, 4 hours 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1146 PM EDT THU APR 11 2013

SCZ001>004-120415-
GREATER OCONEE-GREENVILLE MOUNTAINS-OCONEE MOUNTAINS-PICKENS
MOUNTAINS-
1146 PM EDT THU APR 11 2013

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN GREENVILLE...
NORTHWESTERN PICKENS AND OCONEE COUNTIES THROUGH 1215 AM EDT...

AT 1143 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES NORTH OF WESTMINSTER...OR 4 MILES SOUTH
OF WALHALLA...MOVING NORTHEAST AT 50 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  LAKE KEOWEE...
  SALEM...
  NINE TIMES...
  LAKE JOCASSEE...
  ROCKY BOTTOM...

SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS
STORM.

PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
SPECIFIC LOCATION WHERE IT OCCURRED.

LAT...LON 3470 8321 3501 8309 3508 8280 3507 8276
      3510 8272 3510 8270 3512 8269 3515 8256
      3484 8282 3481 8289 3479 8288 3475 8289
      3459 8303

LANE

Special weather statement, Apr 12, 12:28 AM EDT, 3 hours 30 minutes before

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Special weather statement, Apr 12, 12:55 AM EDT, 3 hours 3 minutes before

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Special weather statement, Apr 12, 1:14 AM EDT, 2 hours 44 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 9:06 PM EDT	Special Weather Statement	GSP	Gaston	24 min
Apr 11, 9:26 PM EDT	Special Weather Statement	GSP	Transylvania	49 min
Apr 11, 9:33 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	42 min
Apr 11, 9:39 PM EDT	Special Weather Statement	GSP	Iredell	51 min
Apr 11, 10:00 PM EDT	Severe Thunderstorm Warning	GSP	Catawba, Iredell	60 min
Apr 11, 10:46 PM EDT	Special Weather Statement	GSP	Macon	44 min
Apr 11, 10:56 PM EDT	Severe Thunderstorm Warning	GSP	Haywood, Jackson, Macon, Transylvania	64 min
Apr 11, 11:52 PM EDT	Flash Flood Warning	GSP	Transylvania	4 hr
Apr 12, 12:55 AM EDT	Special Weather Statement	GSP	Cleveland	50 min
Apr 12, 1:14 AM EDT	Special Weather Statement	GSP	Gaston	46 min
Apr 11, 8:13 PM EDT	Special Weather Statement	GSP	Chester	47 min
Apr 11, 11:28 PM EDT	Special Weather Statement	GSP	Greenville, Laurens, Spartanburg	47 min
Apr 11, 11:46 PM EDT	Special Weather Statement	GSP	Oconee	29 min
Apr 12, 12:28 AM EDT	Special Weather Statement	GSP	Oconee, Pickens	47 min
Apr 11, 10:01 PM EDT	Special Weather Statement	GSP	Rabun	44 min
Apr 11, 11:05 PM EDT	Special Weather Statement	GSP	Stephens	40 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2013 Every severe thunderstorm warning in 2013

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.