Alert archive / North Carolina / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 346, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 21, 2007, 2:03 PM EDT for Yancey County, North Carolina. It was in force for 42 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
- Aug 21, 2007, 2:03 PM EDT (18:03 UTC)
- Expired
- Aug 21, 2007, 2:45 PM EDT
- In force
- 42 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Yancey County, NC
The radar
The Knoxville radar (KMRX), 103 km from the middle of the area, began a volume at 18:06 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 12:00Z, 6.1 hours before the alert went out and 218 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
- 424 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 1462 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 21, 1:38 PM EDT, 25 minutes earlier.
Area forecast discussion, Aug 21, 1:38 PM EDT, 25 minutes before
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</html>Hazardous weather outlook, Aug 21, 11:39 AM EDT, 2 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1139 AM EDT TUE AUG 21 2007 NCZ033-048>053-058-059-062>065-501-503-505-507-509-221545- AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM- NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON- CALDWELL MOUNTAINS-BURKE MOUNTAINS-MCDOWELL MOUNTAINS- RUTHERFORD MOUNTAINS-POLK MOUNTAINS- 1139 AM EDT TUE AUG 21 2007 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. RED FLAG WARNING. ISOLATED THUNDERSTORMS IN THE MOUNTAINS MAY PRODUCE LOCALLY STRONG WINDS AND CLOUD TO GROUND LIGHTNING THROUGH THE AFTERNOON. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. GAZ010-221545- RABUN- 1139 AM EDT TUE AUG 21 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. GAZ017-018-026-028-SCZ001>007-010-221545- HABERSHAM-STEPHENS-FRANKLIN-HART-OCONEE MOUNTAINS-PICKENS MOUNTAINS- GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS- GREATER GREENVILLE-SPARTANBURG-ANDERSON- 1139 AM EDT TUE AUG 21 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA AND UPSTATE SOUTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ035>037-056-057-068-069-072-502-504-506-508-510-221545- ALEXANDER-IREDELL-DAVIE-CATAWBA-ROWAN-CLEVELAND-LINCOLN-CABARRUS- GREATER CALDWELL-GREATER BURKE-EASTERN MCDOWELL-GREATER RUTHERFORD- EASTERN POLK- 1139 AM EDT TUE AUG 21 2007 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA AND WESTERN NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. RED FLAG WARNING. ISOLATED THUNDERSTORMS IN THE MOUNTAINS MAY PRODUCE LOCALLY STRONG WINDS AND CLOUD TO GROUND LIGHTNING THROUGH THE AFTERNOON. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ070-221545- GASTON- 1139 AM EDT TUE AUG 21 2007 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...HEAT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS AFTERNOON... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. RED FLAG WARNING. HEAT ADVISORY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. GAZ029-SCZ008-009-011>014-019-221545- ELBERT-CHEROKEE-YORK-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD- 1139 AM EDT TUE AUG 21 2007 ...HEAT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS AFTERNOON... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA AND UPSTATE SOUTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. HEAT ADVISORY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ071-082-221545- MECKLENBURG-UNION NC- 1139 AM EDT TUE AUG 21 2007 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...HEAT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS AFTERNOON... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. RED FLAG WARNING. HEAT ADVISORY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. DICARLO
In the hours before
Special weather statement, Aug 21, 1:09 PM EDT, 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 109 PM EDT TUE AUG 21 2007 NCZ048-211745- MADISON- 109 PM EDT TUE AUG 21 2007 ...A STRONG THUNDERSTORM WILL AFFECT MADISON COUNTY THROUGH 145 PM EDT... AT 109 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 5 MILES NORTHWEST OF HOT SPRINGS...OR 15 MILES NORTHWEST OF MARSHALL...MOVING EAST AT 20 MPH. PEOPLE IN MADISON COUNTY...INCLUDING THE FOLLOWING LOCATIONS... HOT SPRINGS AND MARS HILL... SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. PEA SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. BSH
Special weather statement, Aug 21, 1:46 PM EDT, 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 146 PM EDT TUE AUG 21 2007 NCZ052-211815- HAYWOOD- 146 PM EDT TUE AUG 21 2007 ...A STRONG THUNDERSTORM WILL AFFECT NORTHERN HAYWOOD COUNTY THROUGH 215 PM EDT... AT 146 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 8 MILES SOUTHWEST OF WATERVILLE...OR 15 MILES NORTHWEST OF WAYNESVILLE...MOVING EAST AT 30 MPH. PEOPLE IN NORTHERN HAYWOOD COUNTY... SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. PEA SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. BSH
Special weather statement, Aug 21, 1:50 PM EDT, 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 150 PM EDT TUE AUG 21 2007 NCZ048-049-211815- MADISON-YANCEY- 150 PM EDT TUE AUG 21 2007 ...A STRONG THUNDERSTORM WILL AFFECT CENTRAL YANCEY AND EASTERN MADISON COUNTIES THROUGH 215 PM EDT... AT 150 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 5 MILES NORTHEAST OF MARS HILL...OR 11 MILES WEST OF BURNSVILLE...MOVING EAST AT 45 MPH. PEOPLE IN CENTRAL YANCEY AND EASTERN MADISON COUNTIES...INCLUDING THE FOLLOWING LOCATIONS... BURNSVILLE AND MICAVILLE... SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. PEA SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. BSH
Special weather statement, Aug 21, 1:59 PM EDT, 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 159 PM EDT TUE AUG 21 2007 NCZ051-211830- SWAIN- 159 PM EDT TUE AUG 21 2007 ...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SWAIN COUNTY THROUGH 230 PM EDT... AT 159 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 4 MILES WEST OF BRYSON CITY...MOVING EAST AT 30 MPH. PEOPLE IN CENTRAL SWAIN COUNTY...INCLUDING THE FOLLOWING LOCATIONS... BRYSON CITY...ALARKA AND CHEROKEE... SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. PEA SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. BSH
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 10:32 AM EDT | Heat Advisory | GSP | Gaston, Mecklenburg, Union | 7 hr |
| Aug 21, 11:26 AM EDT | Red Flag Warning | GSP | Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more | 9 hr |
| Aug 21, 2:42 PM EDT | Severe Thunderstorm Warning | GSP | Buncombe | 63 min |
| Aug 21, 3:08 PM EDT | Severe Thunderstorm Warning | GSP | McDowell | 67 min |
| Aug 21, 3:27 PM EDT | Severe Thunderstorm Warning | GSP | Swain | 43 min |
| Aug 21, 3:47 PM EDT | Severe Thunderstorm Warning | GSP | Rutherford | 58 min |
| Aug 21, 4:14 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland | 61 min |
| Aug 21, 4:19 PM EDT | Severe Thunderstorm Warning | GSP | Polk | 56 min |
| Aug 21, 4:22 PM EDT | Severe Thunderstorm Warning | GSP | Lincoln | 53 min |
| Aug 21, 4:37 PM EDT | Severe Thunderstorm Warning | GSP | Henderson | 53 min |
| Aug 21, 4:43 PM EDT | Severe Thunderstorm Warning | GSP | Gaston | 41 min |
| Aug 21, 5:14 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg | 42 min |
| Aug 21, 5:18 PM EDT | Severe Thunderstorm Warning | GSP | Rowan | 57 min |
| Aug 21, 5:19 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus | 56 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2007Every severe thunderstorm warning in 2007
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.