Alert archive / North Carolina / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 217, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 25, 2006, 12:47 PM EDT for Transylvania County, North Carolina. It was in force for 58 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 25, 2006, 12:47 PM EDT (16:47 UTC)
- Expired
- May 25, 2006, 1:45 PM EDT
- In force
- 58 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Transylvania County, NC
The radar
The Greer radar (KGSP), 63 km from the middle of the area, began a volume at 16:47 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 4.8 hours before the alert went out and 257 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
- 168 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 1520 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 25, 10:17 AM EDT, 2 hours 30 minutes earlier.
Area forecast discussion, May 25, 10:17 AM EDT, 2 hours 30 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1017 AM EDT THU MAY 25 2006 .SHORT TERM /REST OF TODAY/... AN UPPER LEVEL LOW IS LOCATED OVER NORTHERN WISCONSIN THIS MORNING...WITH TWO DISTINCT SHORTWAVES ROTATING AROUND ITS SOUTH END. THE FIRST SHORTWAVE IS LOCATED OVER THE TENNESSEE RIVER VALLEY...AND IS COINCIDENT WITH A MOISTURE AXIS IN THE CENTRAL TENNESSEE. CONVECTION ASSOCIATED WITH THIS FEATURE IS MOVING INTO THE NORTH CAROLINA MOUNTAINS AT THIS TIME. THE SECOND SHORTWAVE IS ENTERING THE CENTRAL MISSISSIPPI RIVER VALLEY. CONVECTION AHEAD OF THIS FEATURE IS BACK IN WEST TENNESSEE AND KENTUCKY. AT THE SURFACE...A COLD FRONT WAS ANALYZED OVER THE UPPER MISSIPPI RIVER VALLEY...WITH A MOIST AXIS FROM MICHIGAN TO THE WESTERN GULF COAST. A DRY AXIS WAS LOCATED OVER THE SOUTHERN APPALACHIANS... WITH ANOTHER MOIST AXIS ALONG THE EAST COAST AS FAR NORTH AS VIRGINIA. AS THE LEAD SHORTWAVE APPROACHES...CONVECTION IS EXPECTED TO DEVELOP ACROSS THE MOUNTAINS...AND SPREAD INTO THE FOOTHILLS. BY AFTERNOON THE AIRMASS IN THE PIEDMONT IS EXPECTED TO DESTABILIZE TO THE EXTENT THAT CAPES OF AROUND 2000 ARE EXPECTED. MID TO UPPER LEVEL WINDS ARE EXPECTED TO INCREASE THIS AFTERNOON...PARTICULARLY ACROSS THE NORTHERN TIER OF THE AREA...WHILE DEW POINTS INCREASE FROM THE SOUTHWEST. POPS WILL BE RAISED ACROSS TO CHANCE THE AREA. A SEVERE WEATHER OUTLOOK WILL BE ISSUED FOR THIS AFTERNOON... HIGHLIGHTING THE RISK OF HAIL AND DAMAGING WIND. TEMPERATURES ARE RUNNING A BIT WARM IN THE NORTHWEST PORTION OF THE AREA...AND A BIT COOL IN THE SOUTHEAST. MAXIMUM TEMPERATURES WILL BE ADJUSTED TO REFLECT THIS TREND. WINDS WERE UPDATED FROM THE RUC...WHICH COMPROMISED BETWEEN THE STRONGER ETA AND WEAKER GFS WIND SPEEDS. && .FIRE WEATHER... THE FIRE WEATHER FORECAST WILL BE UPDATED FOR RELATIVE HUMIDITIES DUE TO TEMPERATURES CHANGES AND AN UPDATED DEW POINT FORECAST... AS WELL AS HIGHER MIXING HEIGHTS AS SHOWN IN FORECAST SOUNDINGS. && .PREV DISCUSSION... /ISSUED 255 AM EDT THU MAY 25 2006/ SHORT TERM /TODAY THROUGH FRIDAY/... ROBUST WAA PATTERN GETTING UNDER WAY AND WILL CONTINUE TO ADVECT HIGHER DEWPOINTS INTO THE CWFA LEADING TO A MODERATELY UNSTABLE AIRMASS THIS AFTERNOON. OVERALL...THE ATMOSPHERE IS STILL JUST WEAKLY FORCED TODAY...MUCH OF THIS THE RESULT OF AFOREMENTIONED WAA. AT ANY RATE...STILL ON TRACK FOR SCATTERED THUNDERSTORM DEVELOPMENT...INITIALLY IN THE MOUNTAINS...WITH A LITTLE LESS CVRG AND A STARTING TAD LATER IN THE FOOTHILLS/PIEDMONT. KINEMATICS TODAY NOT ALL THAT BAD FOR A FEW SVR THUNDERSTORMS...FAIR AND MOSTLY UNIDIRECTIONAL DEEP SHEAR AND UPPER JETLET PROVIDING A SLUG OF DIVERGENCE ALONG WITH MODERATE INSTABILITY BUT MODEST LAPSE RATES. NO DOUBT THERE WILL BE SOME DECREASE IN CVRG THIS EVENING WITH LOSS OF HEATING...INCREASING CIN AND LLVL FLOW BECOMING MORE DOWNSLOPE...BUT A CONSTANT FEED OF HIGHER LLVL THETA-E AIR AND LLVL SW JET COULD KEEP ACTIVITY GOING...ESPECIALLY IN THE MOUNTAINS. WILL HAVE TO WATCH ORGANIZED DEEP CONVECTIVE TRENDS UPSTREAM LATER TODAY FOR INDICATIONS OF FORWARD PROPAGATING LATE NIGHT MCS. NAM FCST SNDGS DO INDICATE DECENT ELEVATED INSTABILITY ALL NIGHT. LLVL WAA AND MOISTENING TREND CONTINUES FOR FRIDAY BUT ATMOSPHERE HAS THE POTENTIAL TO BE LESS UNSTABLE THAN TODAY AS VARYING AMOUNTS OF CLDS ARE EXPECTED TO PRESENT. CWFA IS ALSO IN BETWEEN STRONGEST AND CONVERGENT LLVL THETA-E AXES...ACRS ERN TENN AND THE ERN CAROLINAS. NONETHELESS...WITH MID-LVL TROUGH SWINGING ACRS...DEEP SHEAR IS STRONGER AND SVR STORMS HAVE A BETTER CHANCE OF ORGANIZING. LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/... LARGE SCALE FORCING QUICKLY SHIFTS TO THE COAST FRIDAY EVENING WITH ANY DIURNALLY FIRED DEEP CONVECTION EAST OF THE MOUNTAINS WANING...WITH LINGERING WRAP-AROUND/UPSLOPE SHOWERS IN THE NC MOUNTAINS. THE WESTERN FRINGE OF THE CWFA COMES UNDER WEAK RETURN FLOW OR WEAK LLVL THETA-E ADVECTION SATURDAY...BUT PREFER THE NAM/S FURTHER WWD DEPICTION OF MOIST AXIS...EFFECTIVELY LEAVING THE CWFA DRY. WILL CONTINUE TO STICK WITH DRIER NORTHERLY LLVL FLOW ACRS THE REGION ALONG WITH RISING UPPER HEIGHTS ALL ACRS THE EASTERN U.S. SUNDAY AND MONDAY BEFORE MOIST RETURN FLOW STARTS UP ON TUESDAY. AVIATION... LATEST SATELLITE AND SURFACE OBSERVATIONS REVEAL AN AREA OF MVFR CIGS PUSHING NORTH ACROSS THE MIDLANDS. THIS AREA OF CLOUDS LINES UP REASONABLY WELL WITH AN AREA OF HIGHER RH ON THE NAM 925MB SURFACE. FLOW IS PROGGED TO STRENGTHEN AND VEER OVER THE NEXT FEW HOURS...WITH THE BEST LOW LEVEL UPGLIDE AND LOWEST PRESSURE DEFICITS PUSHING INTO CENTRAL NC. THEREFORE...WHILE IT WILL BE A CLOSE CALL...I/M GOING WITH A LOW CLOUD FREE FORECAST AT KCLT. FORECAST FOR THE REST OF THE TAF SITES IS BENIGN THROUGH THE MORNING HOURS. DURING THE AFTERNOON HOURS...FLOW WILL INCREASE OUT OF THE SOUTHWEST...WITH A FEW GUSTS UP TO 20KTS LIKELY AT UPSTATE TAF LOCATIONS. MODEL SOUNDINGS BECOME MODERATELY UNSTABLE BY MID AFTERNOON...AND WITH LITTLE CONVECTIVE INHIBITION...SCATTERED THUNDERSTORMS SHOULD DEVELOP ACROSS MOST OF THE REGION...BUT FAVORING THE HIGH TERRAIN. THEREFORE...HAVE A /CB/ GROUP IN AT ALL TAF SITES...AND HAVE INCLUDED VCTS AT KAVL. IT IS POSSIBLE THAT CONVECTION COULD GO WELL INTO THE NIGHT...BUT FOR NOW WILL JUST CARRY /CB/ AT KAVL AFTER 00 UTC. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SHORT TERM...JAT FIRE WEATHER...
Hazardous weather outlook, May 25, 6:30 AM EDT, 6 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 630 AM EDT THU MAY 25 2006 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-261030- 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- 630 AM EDT THU MAY 25 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL BE DEVELOPING ACROSS THE REGION TODAY. A COUPLE OF THESE STORMS MAY BE SEVERE THIS AFTERNOON AND EVENING... PRODUCING LARGE HAIL AND/OR DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS WILL BE POSSIBLE AGAIN ON FRIDAY. SOME SEVERE STORMS MAY DEVELOP AS WELL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY AND/OR FRIDAY.
In the hours before
Special weather statement, May 25, 10:42 AM EDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1042 AM EDT THU MAY 25 2006 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-251645- 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- INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE...TOCCOA... HARTWELL...ELBERTON...NEWLAND...STATESVILLE...MOCKSVILLE... SPRUCE PINE...CHEROKEE...WAYNESVILLE...ASHEVILLE...HICKORY... SALISBURY...SYLVA...FRANKLIN...BREVARD...HENDERSONVILLE... SHELBY...LINCOLNTON...GASTONIA...CHARLOTTE...CONCORD...MONROE... LENOIR...MORGANTON...MARION...LAKE LURE...RUTHERFORD...COLUMBUS... GREENVILLE...SPARTANBURG...GAFFNEY...ROCK HILL...ANDERSON... ABBEVILLE...LAURENS...UNION...CHESTER...GREENWOOD 1042 AM EDT THU MAY 25 2006 ...SEVERE WEATHER OUTLOOK... SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. SOME THUNDERSTORMS COULD BE SEVERE...PRODUCING LARGE HAIL AND DAMAGING WIND. THE GREATEST CHANCE OF SEVERE WEATHER IS EXPECTED TO BE ALONG AND NORTH OF INTERSTATE 40...AND IN THE PIEDMONT...FROM CHARLOTTE...SOUTHEAST TO LAURENS AND ELBERTON. STAY TUNED TO THE MEDIA OR NOAA WEATHER RADIO FOR THE LATEST INFORMATION. 07
Special weather statement, May 25, 10:44 AM EDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT...RESENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1044 AM EDT THU MAY 25 2006 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-251700- 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- INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE...TOCCOA... HARTWELL...ELBERTON...NEWLAND...STATESVILLE...MOCKSVILLE... SPRUCE PINE...CHEROKEE...WAYNESVILLE...ASHEVILLE...HICKORY... SALISBURY...SYLVA...FRANKLIN...BREVARD...HENDERSONVILLE... SHELBY...LINCOLNTON...GASTONIA...CHARLOTTE...CONCORD...MONROE... LENOIR...MORGANTON...MARION...LAKE LURE...RUTHERFORD...COLUMBUS... GREENVILLE...SPARTANBURG...GAFFNEY...ROCK HILL...ANDERSON... ABBEVILLE...LAURENS...UNION...CHESTER...GREENWOOD 1044 AM EDT THU MAY 25 2006 ...SEVERE WEATHER OUTLOOK... SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. SOME THUNDERSTORMS COULD BE SEVERE...PRODUCING LARGE HAIL AND DAMAGING WIND. THE GREATEST CHANCE OF SEVERE WEATHER IS EXPECTED TO BE ALONG AND NORTH OF INTERSTATE 40...AND IN THE PIEDMONT...FROM CHARLOTTE...SOUTHEAST TO LAURENS AND ELBERTON. STAY TUNED TO THE MEDIA OR NOAA WEATHER RADIO FOR THE LATEST INFORMATION. 07
Special weather statement, May 25, 11:52 AM EDT, 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1152 AM EDT THU MAY 25 2006 NCZ051-059-062-063-251700- MACON-NORTHERN JACKSON-SOUTHERN JACKSON-SWAIN- 1152 AM EDT THU MAY 25 2006 ...THUNDERSTORMS IN THE LITTLE TENNESSEE RIVER VALLEY... THUNDERSTORMS WITH VERY HEAVY RAIN WILL CONTINUE THROUGH 1 PM OVER THE LITTLE TENNESSEE RIVER VALLEY OF MACON COUNTY...AND OVER SOUTHERN SWAIN AND CENTRAL JACKSON COUNTIES. FREQUENT CLOUD TO CLOUD LIGHTNING...HAIL...AND GUSTY WINDS CAN BE EXPECTED WITH THESE THUNDERSTORMS. 07
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 1:12 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Pickens | 63 min |
| May 25, 1:26 PM EDT | Severe Thunderstorm Warning | GSP | Oconee | 64 min |
| May 25, 1:50 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 55 min |
| May 25, 2:17 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Pickens | 88 min |
| May 25, 3:18 PM EDT | Severe Thunderstorm Warning | GSP | Oconee | 42 min |
| May 25, 3:44 PM EDT | Severe Thunderstorm Warning | GSP | Anderson | 61 min |
| May 25, 12:51 PM EDT | Severe Thunderstorm Warning | GSP | Rabun | 54 min |
| May 25, 1:16 PM EDT | Severe Thunderstorm Warning | GSP | Habersham | 44 min |
| May 25, 2:06 PM EDT | Severe Thunderstorm Warning | GSP | Franklin, Hart, Stephens | 84 min |
| May 25, 3:52 PM EDT | Severe Thunderstorm Warning | GSP | Hart | 23 min |
| May 25, 4:00 PM EDT | Severe Thunderstorm Warning | GSP | Elbert | 60 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2006Every severe thunderstorm warning in 2006
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.