Alert archive / North Carolina / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 48, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 3, 2007, 2:19 PM EDT for Madison County, North Carolina. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 3, 2007, 2:19 PM EDT (18:19 UTC)
- Expired
- May 3, 2007, 3:00 PM EDT
- In force
- 41 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Madison County, NC
The radar
The Knoxville radar (KMRX), 70 km from the middle of the area, began a volume at 18:21 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.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 13 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.3 hours before the alert went out and 262 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
- 108 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 711 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KGSP 031820 SVRGSP NCC115-031900- /O.NEW.KGSP.SV.W.0048.070503T1819Z-070503T1900Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 219 PM EDT THU MAY 3 2007 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN MADISON COUNTY IN WESTERN NORTH CAROLINA * UNTIL 300 PM EDT * AT 211 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CANTO...AND WAS MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... CANTO THROUGH 230 PM EDT... PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM WINDOWS AND DOORS UNTIL THE STORM PASSES. TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING...THROUGH OUR AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER... 1 8 7 7...6 3 3...6 7 7 2. LAT...LON 3578 8294 3567 8288 3577 8257 3591 8263 $$ GMS/MCAVOY
2 follow-up statements
000 WWUS52 KGSP 031843 SVSGSP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 243 PM EDT THU MAY 3 2007 NCC115-031900- /O.CON.KGSP.SV.W.0048.000000T0000Z-070503T1900Z/ MADISON NC- 243 PM EDT THU MAY 3 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT FOR SOUTHERN MADISON COUNTY... AT 236 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES SOUTHEAST OF MARSHALL...MOVING EAST AT 20 MPH. LAT...LON 3578 8294 3567 8288 3577 8257 3591 8263 $$ GMS
000 WWUS52 KGSP 031902 SVSGSP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 302 PM EDT THU MAY 3 2007 NCC115-031912- /O.EXP.KGSP.SV.W.0048.000000T0000Z-070503T1900Z/ MADISON NC- 302 PM EDT THU MAY 3 2007 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MADISON COUNTY HAS BEEN ALLOWED TO EXPIRE... OTHER STRONG STORMS WILL BE POSSIBLE IN SOUTHERN AND CENTRAL PARTS OF THE COUNTY OVER THE NEXT HOUR. LAT...LON 3578 8294 3567 8288 3577 8257 3591 8263 $$ GMS
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 3, 10:09 AM EDT, 4 hours 10 minutes earlier.
Area forecast discussion, May 3, 10:09 AM EDT, 4 hours 10 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1009 AM EDT THU MAY 3 2007 .SHORT TERM /REST OF TODAY/... NOT MUCH CHANGE IS REQUIRED TO THE FIRST PERIOD ATTM...AS THE CURRENT FORECAST APPEARS TO HAVE AN EXCELLENT HANDLE ON THE SITUATION. BACKDOOR COLD FRONT WILL DROP SOUTHWEST ACROSS THE AREA THIS AFTERNOON. ALTHOUGH THERE WILL BE DECENT CONVERGENCE ALONG THIS BOUNDARY...THERE IS LITTLE IF ANY UPPER SUPPORT...AND INSTABILITY IS NOT MUCH TO WRITE HOME ABOUT. IN FACT...I FEAR THE MODELS MAY BE OVERDOING THE INSTABILITY A BIT...AS THERE WILL BE DECENT MIXING AHEAD OF THE FRONT THIS AFTERNOON...AND CONSIDERING HOW DRY THE SOIL IS ACROSS THE REGION...WOULDN/T BE SURPRISED TO SEE DEWPOINTS DIP TO AROUND 50 IN THE WARM SECTOR THIS AFTERNOON. CONSIDERING THE RATHER UNIMPRESSIVE MID-LEVEL LAPSE RATES...THIS WOULD SEVERELY LIMIT DESTABILIZATION. ALTHOUGH THE AIRMASS WILL BE JUICIER NORTH OF THE BOUNDARY...HEATING WILL BE LIMITED BY WIDESPREAD LOW CLOUDS. NEVERTHELESS...THERE SHOULD BE AN AXIS OF DECENT INSTABILITY IMMEDIATELY ALONG THE BOUNDARY...AS MOISTURE POOLS WITHIN THE STRONGER LOW LEVEL CONVERGENCE. WE WILL CONTINUE TO FORECAST POPS IN THE SOLID CHANCE RANGE ACROSS MUCH OF THE AREA NORTH OF I-85...WITH TOKEN LOW TO SLIGHT CHANCES ACROSS THE SOUTHERN 1/3 OF THE AREA. && .PREV DISCUSSION... /ISSUED 231 AM EDT THU MAY 3 2007/ SHORT TERM /TODAY THROUGH SATURDAY NIGHT/... AN UPPER RIDGE WILL REMAIN OVER THE SOUTHERN APPALACHIANS AND WESTERN GREAT LAKES TODAY AND TONIGHT...WITH UPPER VORTICIES OVER EASTERN AND WESTERN CANADA. THE BACK DOOR COLD FRONT NOW IN WESTERN NC WILL DROP SLOWLY SOUTH TODAY...CROSSING THE SOUTHERN PORTION OF OUR AREA BY THIS EVENING. THE BEST ISENTROPIC UPGLIDE REMAINS WELL NORTH OF OUR AREA TODAY NEAR THE 850 MB FRONT...AND POPS WILL BE CUT BACK TODAY...WITH THE BEST CHANCE ALONG THE NC BLUE RIDGE WHERE A SLIGHT UPSLOPE COMPONENT WILL EXIST. ENOUGH INSTABILITY WILL EXIST TO CARRY THUNDER ACROSS THE AREA THIS AFTERNOON. BETTER UPGLIDE SHIFTS SOUTH THIS EVENING...FAVORING LIKELY POPS ALONG THE INTERSTATE 40 CORRIDOR...WHERE AREAS EAST OF THE MOUNTAINS WILL BE TOO STABLE FOR THUNDER. BY LATE TONIGHT INSTABILITY SHIFTS COMPLETELY SOUTH OF THE AREA...BUT THE MODELS CARRY THEIR BEST POPS AT THAT TIME...AND LIKELY POPS WILL BE CONTINUED ALONG INTERSTATE 40. MAXIMUM TEMPERATURES HAVE BEEN RAISED TWO DEGREES TODAY WITH LESS PRECIPITATION EXPECTED. MINIMUM TEMPERATURES TONIGHT WILL BE RATHER ELEVATED UNDER A THICKENING CLOUD DECK...DESPITE COLD ADVECTION. THE WEDGE FRONT WILL BE JUST SOUTHWEST OF THE REGION ON FRIDAY...ALLOWING THE COLD AIR DAMMING BECOME MORE ENTRENCHED. 850 MB FLOW WILL BE LIGHT AND SOMEWHAT VARIABLE...HOWEVER ABUNDANT MOISTURE IN THE SFC TO 700 MB LAYER WILL COMBINE WITH ANY DEGREE OF UPGLIDE AND UPSLOPE FLOW TO WARRANT COTINUED HEALTHY CHANCE POPS. A THUNDER MENTION WILL BE NEEDED FRIDAY AFTERNOON IN THE SW MTNS OUTSIDE THE INFLUENCE OF THE WEDGE. THE FLOW OVER THE CAD LAYER WILL BECOME EVEN MORE VARIABLE ON SATURDAY...BUT THE ABUNDANT LOW LEVEL MOISTURE WILL PERSIST. POPS WILL BE LOWERED INTO THE LESSER CHANCE RANGE AND TEMPERATURES BELOW MOS WILL CONTINUE TO BE FEATURED. LONG TERM /SUNDAY THROUGH WEDNESDAY/... STRONG UPPER RIDGING WILL DOMINATE THE EASTERN HALF OF THE CONUS SUNDAY THROUGH WEDNESDAY. THE DEEPER MOISTURE IN THE COLD AIR DAMMING REGION WILL GRADUALLY PUSH SOUTHWEST ON SUNDAY...BUT BOUNDARY LAYER MOISTURE WILL LIKELY LINGER THROUGH EARLY NEXT WEEK. CLOUDY SKIES EARLY SUNDAY WILL SLOWLY GIVE WAY TO A DIURNAL CLOUD TREND...WITH MORE BREAKS APPEARING EACH AFTERNOON THROUGH MID WEEK. AVIATION /07Z-06Z/... VFR CEILINGS WILL LOWER AND WIND WILL SHIFT TO THE NORTHEAST AS THE BACK DOOR COLD FRONT MOVES SOUTH FROM NC INTO SC. PRECIPITATION CHANCES HAVE BEEN LOWERED...ESPECIALLY IN SC...AND ONLY KAVL WILL BE GIVEN A TEMPO GROUP FOR LATE AFTERNOON THUNDERSTORMS. BY MID EVENING THE MODEL TIME HEIGHTS SHOW A DRAMATIC LOWERING OF CLOUDS LEVELS... AND MVFR CEILING WILL BE CARRIED AT THAT TIME. MODEL GUIDANCE SUPPORTS NUMEROUS SHOWERS AND THUNDERSTORMS ALONG AND NORTH OF INTERSTATE 40...BUT ONLY SHOWERS IN THE VICINITY WILL BE CARRIED AT KAVL AND KCLT LATE IN THE EVENING. MODEL DEW POINT DEPRESSIONS DO NOT SUPPORT FOG DEVELOPMENT THROUGH 06Z TONIGHT...DESPITE THE FACT THAT SOME GUIDANCE MEMBERS CARRY MVFR RESTRICTIONS TO VISIBILITY. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SHORT TERM...LANE
Hazardous weather outlook, May 3, 4:41 AM EDT, 9 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 441 AM EDT THU MAY 3 2007 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-041000- 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- 441 AM EDT THU MAY 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HG
In the hours before
Special weather statement, May 3, 1:48 PM EDT, 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 148 PM EDT THU MAY 3 2007 NCZ064-065-031845- HENDERSON-TRANSYLVANIA- 148 PM EDT THU MAY 3 2007 ...A STRONG THUNDERSTORM WILL AFFECT HENDERSON AND TRANSYLVANIA COUNTIES THROUGH 245 PM EDT... AT 145 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR ETOWAH...OR 6 MILES NORTHEAST OF BREVARD... MOVING EAST AT 5 MPH. * OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO MOUNTAIN HOME...MILLS RIVER...AND ETOWAH. PEA SIZE HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THIS STORM. INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. MCAVOY
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 2:43 PM EDT | Severe Thunderstorm Warning | GSP | Henderson | 62 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.