Alert archive / North Carolina / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 87, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 11, 2007, 2:28 PM EDT for Gaston County, Mecklenburg County, North Carolina. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 11, 2007, 2:28 PM EDT (18:28 UTC)
- Expired
- Jun 11, 2007, 3:30 PM EDT
- In force
- 62 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
Counties Gaston County, NC, Mecklenburg County, NC
The radar
The Greer radar (KGSP), 125 km from the middle of the area, began a volume at 18:29 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 11, 2:30 PM EDT | HAIL 0.75 | 5 Ne Mount Holly, NC | STATE OFFICIAL PASSED ON REPORT OF PENNY SIZE HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 1:31 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.5 hours before the alert went out and 128 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
- 458 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KGSP 111829 RRA SVRGSP NCC071-119-111930- /O.NEW.KGSP.SV.W.0087.070611T1828Z-070611T1930Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 228 PM EDT MON JUN 11 2007 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN GASTON COUNTY IN THE PIEDMONT OF NORTH CAROLINA CENTRAL MECKLENBURG COUNTY IN THE PIEDMONT OF NORTH CAROLINA * UNTIL 330 PM EDT * AT 228 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 11 MILES NORTHEAST OF GASTONIA...OR ABOUT 3 MILES NORTH OF MOUNT HOLLY...AND WAS MOVING SOUTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MOUNT HOLLY BY 230 PM EDT... MOUNTAIN ISLAND LAKE BY 235 PM EDT... PAW CREEK BY 250 PM EDT... I-77 AT I-85 BY 305 PM EDT... CENTER CITY CHARLOTTE BY 315 PM EDT... SOUTHPARK MALL BY 330 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 3541 8103 3532 8109 3514 8084 3527 8077 $$ LG/RB
1 follow-up statement
000 WWUS52 KGSP 111856 SVSGSP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 256 PM EDT MON JUN 11 2007 NCC071-119-111930- /O.CON.KGSP.SV.W.0087.000000T0000Z-070611T1930Z/ GASTON NC-MECKLENBURG NC- 256 PM EDT MON JUN 11 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT FOR CENTRAL MECKLENBURG AND GASTON COUNTIES... AT 254 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR PAW CREEK...OR ABOUT 8 MILES NORTHWEST OF CENTER CITY CHARLOTTE...MOVING SOUTHEAST AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... I-77 AT I-85 BY 315 PM EDT... CENTER CITY CHARLOTTE BY 325 PM EDT... SOUTHPARK MALL AND EASTLAND MALL BY 330 PM EDT... LAT...LON 3541 8128 3528 8129 3511 8084 3524 8071 $$ LG/RB
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 Jun 11, 11:41 AM EDT, 2 hours 47 minutes earlier.
Area forecast discussion, Jun 11, 11:41 AM EDT, 2 hours 47 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1141 AM EDT MON JUN 11 2007 .SYNOPSIS... HIGH PRESSURE OVER THE SOUTHEAST REGION WILL WEAKEN THIS AFTERNOON AS AN UPPER LEVEL TROUGH CROSSES THE REGION FROM THE NORTH. FOR THE REMAINDER OF THE WEEK...AN UPPER LEVEL LOW WILL REMAIN NEARLY STATIONARY OFF THE NEW ENGLAND COAST. THIS WILL REINFORCE A COOLER AIRMASS ACROSS THE EAST COAST THROUGH FRIDAY AND MAINTAIN NEAR NORMAL SUMMERTIME TEMPERATURES. && .NEAR TERM /THROUGH TONIGHT/... 12Z NAM APPEARS TO GENERATE A SPURIOUS SURFACE PRESSURE FIELD CAUSED BY NON-EXISTENT AREA OF CONVECTIVE PRECIPITATION OVER UPSTATE SC AND WESTERN NC LATE THIS MORNING. THIS WAS ALSO OBSERVED ON PREVIOUS RUN. WILL RELY ON RUC FOR LATE MORNING UPDATE. PRIMARY STABILITY FEATURE IN 13Z RUC IS AXIS OF HIGH CAPE THAT EXTENDS FROM EASTERN GA NORTHWARD THROUGH UPSTATE SC AND FOOTHILLS/WESTERN PIEDMONT OF NC BY EARLY AFTERNOON. CAPE VALUES EXCEED 2000 J/KG IN THIS AREA BY 18Z. LIGHT SOUTHERLY FLOW LIKELY TO INITIATE CONVECTION IN UPSLOPE FLOW ALONG BLUE RIDGE ESCARPMENT WITH SOUTHEAST MOVEMENT THEREAFTER IN NORTHWEST FLOW IN MID AND UPPER LEVELS. EXTENSIVE CLOUD COVER EVIDENT IN SATELLITE IMAGERY... BUT EXPECT SOME BREAKS IN CLOUDS OVER HIGHER TERRAIN TO ALLOW SUFFICIENT HEATING TO TAP VERY UNSTABLE AIR MASS BY MID AFTERNOON. ESSENTIALS OF CURRENT FORECAST WILL BE CONTINUED THIS AFTERNOON... BUT WILL MODIFY SKY AND TEMPERATURES BASED ON CURRENT OBSERVATIONS AND SATELLITE IMAGEERY. && .SHORT TERM /TUESDAY THROUGH WEDNESDAY/... ON TUESDAY MORNING...MOST VORT ENERGY WILL HAVE PASSED JUST SOUTH OF OUR FORECAST AREA. BOTH THE NAM AND GFS SHOW A SIGNIFICANT VORT MAX OVER THE EASTERN GREAT LAKES LATE MONDAY WHICH WILL DROP SOUTH ALONG THE APPALACHIANS THROUGH TUESDAY REACHING NORTH GEORGIA TUESDAY NIGHT. MOST SHOWERS AND STORMS TO DEVELOP ALONG AND SOUTHEAST OF THE MOUNTAINS. OVERALL MOISTURE IS NOT SHOWN TO BE AS PLENTIFUL ON TUESDAY AND WEDNESDAY AS WHAT IS SEEN MONDAY...BUT SHOWERS AND STORMS SHOULD DEVELOP AS THE UPPER TROUGH BECOMES MORE ESTABLISHED OVER THE CAROLINAS. THE UPPER CLOSED OFF LOW WILL LINGER OFF THE NEW ENGLAND COAST FOR DAYS WITH COOLER AND MORE SEASONABLE TEMPERATURES FOR OUR REGION THROUGH THE WEEK. MORE CLOUDS AND LOWER THICKNESS VALUES WILL COMBINE TO MAKE THIS MILDER SITUATION. THE MODELS SHOW LESS WIND ENERGY GOING INTO MID WEEK...BUT STEEPER LAPSE RATES ASSOCIATED WITH THE UPPER TROUGH. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... THE UPPER LOW IS FORECAST TO REMAIN OFF THE EAST COAST THROUGH LATE WEEK...BUT IS FORECAST TO OPEN UP AND WEAKEN NEXT WEEKEND. SURFACE HIGH PRESSURE IS EXPECTED TO BE THE MAIN INFLUENCE ON OUR WEATHER BUT MINOR VORT MAXES MAY CROSS THE AREA FROM TIME TO TIME. DIURNAL CONVECTION WILL CONTINUE BUT WITH LESS COVERAGE NEXT WEEKEND DUE TO A DRIER COLUMN. AS THE UPPER TROUGH BECOMES ABSORBED AND MOVES OUT ACROSS THE ATLANTIC...OUR REGION OF THE NATION WILL WARM UP AGAIN LATE IN THE WEEKEND AND INTO EARLY NEXT WEEK. UNFORTUNATELY...THE CHANCES OF RAIN WILL DECREASE AT THAT TIME AS WELL. && .AVIATION /16Z MONDAY THROUGH FRIDAY/... WEAK SURFACE TROUGH IS HANGING TOUGH WITH SFC WINDS STILL SE AT KCLT...BUT LIGHT OUT OF THE NE AT KGSP AND KAND. THINK WINDS WILL TURN OUT OF THE SE IN THE UPSTATE AS THE TROUGH IS EXPECTED TO MOVE INTO THE MTNS LATER IN THE MORNING. MVFR CIGS HAVE DEVELOPED AT ALL TAF SITES THIS MORNING...EXCEPT KCLT WHICH IS CURRENTLY IFR. HARD TO SAY WHEN THEY WILL MIX OUT AS THE MET ACTUALLY LOWERS THE CIG CAT AT SOME SITES BY 15 UTC. THIS SEEMS OVERDONE...AND I HAVE THINGS MIXING OUT BY 1500 UTC. EXPECT CB/S TO DEVELOP FAIRLY EARLY TODAY...WITH A GOOD NUMBER OF TSTMS ACROSS THE REGION BY EARLY AFTN. WITH LIGHT WINDS AND DRYING ALOFT...LOOKS LIKE A GOOD SETUP FOR FOG OVERNIGHT. OF COURSE...A LOT WILL DEPEND UPON WHICH TAF SITES SEE RAIN TODAY. AVIATION OUTLOOK...ATLANTIC MOISTURE SPILLING INTO THE AREA BETWEEN HIGH PRESSURE TO THE NORTH AND LOW PRESSURE TO THE SOUTH WILL KEEP CONDITIONS UNSETTLED THROUGH THURSDAY. THE BEST CHANCE OF SCATTERED THUNDERSTORMS WILL BE OVER THE MOUNTAINS EACH AFTERNOON AND EVENING. MVFR CEILINGS WILL BE POSSIBLE EACH MORNING...ESPECIALLY AT KAVL...AND WITHIN ANY THUNDERSTORMS THAT DEVELOP. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SYNOPSIS...SGL NEAR TERM...LGL SHORT TERM...DEO LONG TERM...DEO AVIATION...MCAVOY
Hazardous weather outlook, Jun 11, 11:46 AM EDT, 2 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1146 AM EDT MON JUN 11 2007 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-121600- 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- 1146 AM EDT MON JUN 11 2007 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 SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND CONTINUE INTO THE EVENING. THE AIR MASS ACROSS THE REGION IS VERY UNSTABLE... ESPECIALLY OVER EXTREME NORTHEAST GEORGIA... UPSTATE SOUTH CAROLINA... AND THE FOOTHILLS AND WESTERN PIEDMONT OF NORTH CAROLINA. A LIMITING FACTOR IN THE DEVELOPMENT OF THUNDERSTORMS IS THE THICK CLOUD COVER THAT WAS OVER THE REGION DURING THE MORNING. SOME BREAKS IN THE CLOUDS ARE LIKELY DURING THE AFTERNOON. IF THE BREAKS DEVELOP... SUFFICIENT HEATING WILL OCCUR TO TRIGGER THE DEVELOPMENT OF SCATTERED THUNDERSTORMS. IF THE CLOUD COVER PERSISTS... MINIMAL HEATING WILL RESULT IN ONLY SHOWERS AND ISOLATED THUNDERSTORMS. HOWEVER... ANY THUNDERSTORMS THAT DEVELOP WILL HAVE THE POTENTIAL TO PRODUCE LARGE HAIL AND DAMAGING WIND. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY STRONG THUNDERSTORMS ARE AGAIN POSSIBLE OVER THE WESTERN CAROLINAS AND NORTHEAST GEORGIA TUESDAY AFTERNOON. SOME OF THESE STORMS COULD BECOME SEVERE AND PRODUCE LARGE...DAMAGING HAIL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED. LGL
In the hours before
Special weather statement, Jun 11, 1:49 PM EDT, 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 149 PM EDT MON JUN 11 2007 SCZ009-111815- YORK- 149 PM EDT MON JUN 11 2007 ...A STRONG THUNDERSTORM WILL AFFECT YORK COUNTY THROUGH 215 PM EDT... AT 147 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR YORK...MOVING NORTHEAST AT 20 MPH. * OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO ROCK HILL AND MCCONNELLS. SMALL HAIL IS EXPECTED WITH THIS STORM. LG
Local storm report, Jun 11, 2:12 PM EDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
212 PM EDT MON JUN 11 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0200 PM HAIL 5 WSW KANNAPOLIS 35.46N 80.70W
06/11/2007 E0.50 INCH CABARRUS NC AMATEUR RADIO
&&
DICARLOSpecial weather statement, Jun 11, 2:16 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 216 PM EDT MON JUN 11 2007 NCZ069>071-111845- GASTON-LINCOLN-MECKLENBURG- 216 PM EDT MON JUN 11 2007 ...A STRONG THUNDERSTORM WILL AFFECT GASTON...LINCOLN AND MECKLENBURG COUNTIES THROUGH 245 PM EDT... AT 212 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR STANLEY...OR 10 MILES SOUTHEAST OF LINCOLNTON...MOVING SOUTHEAST AT 15 MPH. * OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO MOUNTAIN ISLAND LAKE...STANLEY...PAW CREEK...MOUNT HOLLY...LUCIA AND LOWESVILLE. SMALL HAIL...FREQUENT LIGHTNING AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. LG
Special weather statement, Jun 11, 2:18 PM EDT, 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 218 PM EDT MON JUN 11 2007 SCZ009-014-111915- CHESTER-YORK- 218 PM EDT MON JUN 11 2007 ...STRONG THUNDERSTORMS WILL AFFECT CHESTER AND YORK COUNTIES THROUGH 315 PM EDT... AT 212 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM CATAWBA TO LOWRYS... MOVING SOUTHEAST AT 10 MPH. THESE STORMS WILL BE NEAR... CATAWBA BY 230 PM EDT. CHESTER BY 235 PM EDT. RICHBURG BY 300 PM EDT. FORT LAWN BY 315 PM EDT. SMALL HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THESE STORMS. INTENSE LIGHTNING IS OCCURRING WITH THESE STORMS. 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. KRENTZ
Local storm report, Jun 11, 2:27 PM EDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
227 PM EDT MON JUN 11 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0212 PM HAIL ROCK HILL 34.94N 81.03W
06/11/2007 E1.00 INCH YORK SC AMATEUR RADIO
0220 PM HAIL ROCK HILL 34.94N 81.03W
06/11/2007 E0.88 INCH YORK SC AMATEUR RADIO
&&
VDICARLOThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 1:27 PM EDT | Severe Thunderstorm Warning | GSP | Union | 42 min |
| Jun 11, 3:31 PM EDT | Severe Thunderstorm Warning | GSP | Gaston | 44 min |
| Jun 11, 4:41 PM EDT | Severe Thunderstorm Warning | GSP | Caldwell | 64 min |
| Jun 11, 6:01 PM EDT | Severe Thunderstorm Warning | GSP | Catawba | 59 min |
| Jun 11, 7:14 PM EDT | Severe Thunderstorm Warning | GSP | Davie | 76 min |
| Jun 11, 7:32 PM EDT | Severe Thunderstorm Warning | GSP | Rowan | 73 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.