Alert archive / North Carolina / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 293, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 10, 2008, 2:18 PM EDT for 4 counties in North Carolina. It was in force for 57 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
- Jul 10, 2008, 2:18 PM EDT (18:18 UTC)
- Expired
- Jul 10, 2008, 3:15 PM EDT
- In force
- 57 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
Counties Alexander County, NC, Caldwell County, NC, Catawba County, NC, Iredell County, NC
The radar
The Greer radar (KGSP), 140 km from the middle of the area, began a volume at 18:18 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, 6.3 hours before the alert went out and 120 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
- 8 J/kg
- Mixed-layer CIN
- -157 J/kg
- Mixed-layer LCL
- 1158 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 19 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 Jul 10, 12:42 PM EDT, 1 hour 36 minutes earlier.
Area forecast discussion, Jul 10, 12:42 PM EDT, 1 hour 36 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1242 PM EDT THU JUL 10 2008 .SYNOPSIS... A WEAK COLD FRONT WILL PUSH SOUTH INTO THE REGION TODAY AS A WEAK WAVE OF LOW PRESSURE MOVES EAST ALONG IT. THIS FRONT WILL BECOME STATIONARY SOUTH OF THE FORECAST AREA OVER THE WEEKEND. ANOTHER COLD FRONT WILL APPROACH THE AREA FROM THE NORTHWEST LATE SUNDAY AND MOVE THROUGH THE AREA BY EARLY EARLY MONDAY. && .NEAR TERM /THROUGH TONIGHT/... 12 UTC NAM HAS A GOOD HANDLE ON ONGOING SHOWERS/ISO TSTMS ACRS ERN TENN THIS MORNING AND NOT SURPRISINGLY...CONTINUES TO FCST DECENT RESPONSE EASTWARD AND THEN SOUTHWARD ACRS THE CWFA INTO THIS EVENING. DEEP CONVECTIVE DEVELOPMENT EXPECTED TO BE AIDED BY LLVL CONVERGENCE ALONG AND OUT AHEAD OF SOUTHWARD PRESSING SFC FRONT AND WITHIN THE BROADLY DIFFLUENT UPPER FLOW. LOCALLY HEAVY RAIN REMAINS LIKELY WITH OBSERVED 12 UTC PWATS 130-140 PERCENT OF NORMAL. HIGH FREEZING LVLS AND VERY MOIST SNDGS SHOULD BE ABLE TO LIMIT SVR WX THREAT TO JUST ISOLATED WET MICROBURSTS...AND MAINLY ACRS THE SOUTHERN HALF OF THE CWFA WHERE INSTABILITY WILL BE GREATER. && .SHORT TERM /FRIDAY THROUGH SATURDAY/... AS OF 145 AM THURSDAY...THE MODELS SHOW A SIGNIFICANT DIFFERENCE IN HOW THEY ARE HANDLING THE MOVEMENT OF THE COLD FRONT. THE NAM KEEPS THE FRONT STRUNG OUT EAST TO WEST ACROSS THE SOUTHERN HALF OF THE FORECAST AREA ON FRIDAY...WHEREAS THE GFS HAS THE BOUNDARY WELL TO OUR SOUTH BY THAT TIME. THERE IS SOME CONCERN WITH THE GFS SOLUTION THAT BLOWS UP A LOW LEVEL PV ANOMALY THAT MOVES EAST ACROSS THE FORECAST AREA TO EASTERN NC FRIDAY MORNING...WHICH HELPS TO PUSH THE BOUNDARY DOWN TO THE SOUTH. THIS MIGHT ULTIMATELY PROVE CORRECT IF AN MCS DEVELOPS LATER TODAY...BUT UNTIL THAT IS SHOWN TO BE THE CASE...I WILL HEDGE MY BETS WITH THE NAM SOLUTION AND KEEP A CHANCE POP ACROSS THE REGION THROUGH FRIDAY AFTERNOON. EVEN THE NAM FILTERS SOME DRIER AIR IN FRIDAY NIGHT SO THE POP WILL BE CUT BACK FROM THE NORTH OVERNIGHT. WILL KEEP HIGH TEMPS IN LINE WITH THE COOLER MET GUIDANCE TO REMAIN CONSISTENT. ON SATURDAY...THE GFS BRINGS DRY HIGH PRESSURE DOWN ACROSS THE CENTRAL APPALACHIANS...WHILE EVEN THE NAM BRINGS SOME DRIER AIR INTO THE FORECAST AREA. THE CONCERN IS THAT SOME LOW LEVEL CONVERGENCE WILL BE PRESENT AROUND THE WESTERN EDGE OF THE UPPER LOW THAT MIGRATES OFF THE COAST. THIS COULD PRESENT THE OPPORTUNITY FOR SOME CONVECTION TO DEVELOP OVER THE SAVANNAH RIVER VALLEY...AND PERHAPS THE NC MOUNTAINS AND FOOTHILLS. FOR THAT REASON...A LOW END POP WAS RETAINED. TEMPS WERE KEPT CLOSER TO THE WARMER MAV GUIDANCE WITH THE IDEA THAT WE SHOULD DRY OUT ACROSS MOST OF THE AREA. && .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... AS OF 330 AM THURSDAY...THE LATEST MEDIUM RANGE GUIDANCE IS IN RELATIVELY GOOD AGREEMENT WITH THE DEEPENING UPPER TROF OVER THE EASTERN HALF OF NORTH AMERICA ON SUNDAY AND MONDAY. THE MODELS NOW MOVE THE MAIN SHORT WAVE ACROSS THE REGION EARLY MONDAY...WHICH MEANS THAT PREFRONTAL CONVECTIVE CHANCES SHOULD START TO INCREASE BY SUNDAY AFTERNOON AS UPPER SUPPORT AND DEEPER MOISTURE APPROACH FROM THE NW. FOR THAT REASON...WILL KEEP SOLID CHANCE POP ACROSS THE WHOLE FORECAST AREA LATE SUNDAY AND WILL ALLOW IT TO CONTINUE SUNDAY NIGHT. ALTHOUGH GUIDANCE SUGGESTS THE TIMING OF THE FRONT MIGHT BE FAST ENOUGH TO MOVE IT EAST OF THE FORECAST AREA BY MONDAY MORNING...WILL HOLD ONTO THE CHANCE POP OVER THE FOOTHILLS AND PIEDMONT IN CASE THE TIMING SLIPS BACK. IN ANY CASE...IT LOOKS LIKE DRY WEATHER WILL RETURN FOR A SPELL STARTING MONDAY NIGHT AND TUESDAY AND CONTINUING THROUGH THE END OF THE PERIOD. SOME MINOR CHANGES WERE MADE TO TEMPS AND SKY BASED ON GREATER CONFIDENCE IN THE FRONTAL PASSAGE SOME TIME EARLY MONDAY. && .AVIATION /18Z THURSDAY THROUGH TUESDAY/... SHOWERS AND A FEW TSTMS WILL BECOME NUMEROUS TO WIDESPREAD ACRS THE FA THIS EVENING INTO THE EARLY EVENING HOURS. BASED ON THE OVERALL HIGH PROBABILITIES WILL MAINTAIN TEMPO GROUPS FOR TSRA AND ACCOMPANYING MVFR RESTRICTIONS. CONSIDERABLE LINGERING HIGHER AND MIDDLE LVLS CLOUDS TONIGHT WILL BE DIMINISHING FRIDAY MORNING. VARYING DEGREES OF MVFR VSBYS ARE EXPECTED LATE TONIGHT THROUGH ABOUT DAYBREAK. OUTLOOK...JUST ISOLATED AFTERNOON SHOWERS AND STORMS ARE POSSIBLE ON FRIDAY...WITH MUCH OF THE FA REMAINING DRY. MAINLY DRY CONDITIONS WILL REMAIN INTO SATURDAY. INCREASED SHOWER AND TSTM CVRG IS EXPECTED ON SUNDAY AND MONDAY. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SYNOPSIS...LG NEAR TERM...CSH/LG SHORT TERM...PM LONG TERM...PM AVIATION...CSH
Hazardous weather outlook, Jul 10, 10:38 AM EDT, 3 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1038 AM EDT THU JUL 10 2008 GAZ010-017-018-026-028-029-NCZ036-037-051>053-056>059-062>065- 068>072-082-507>510-SCZ001>014-019-111445- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-IREDELL-DAVIE-SWAIN- HAYWOOD-BUNCOMBE-CATAWBA-ROWAN-GRAHAM-NORTHERN JACKSON-MACON- SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-CLEVELAND-LINCOLN-GASTON- MECKLENBURG-CABARRUS-UNION NC-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- 1038 AM EDT THU JUL 10 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS SHOWERS THUNDERSTORMS WILL BE SEEN ACROSS THE REGION THIS AFTERNOON AND EARLY EVENING. LOCALLY HEAVY RAIN AND LIGHTNING WILL BE THE BIGGEST THREAT WITH STORMS TODAY... BUT ISOLATED STRONGER STORMS WILL BE POSSIBLE...PRODUCING DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ISOLATED THUNDERSTORMS ARE POSSIBLE FRIDAY AFTERNOON. MORE NUMEROUS THUNDERSTORMS WILL DEVELOP LATE SUNDAY AND CONTINUE MONDAY NIGHT. A FEW OF THE THUNDERSTORMS COULD BECOME SEVERE... PRODUCING LARGE HAIL AND DAMAGING WIND. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NCZ033-035-048>050-501>506-111445- AVERY-ALEXANDER-MADISON-YANCEY-MITCHELL-CALDWELL MOUNTAINS- GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS- EASTERN MCDOWELL- 1038 AM EDT THU JUL 10 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT NUMEROUS TO WIDESPREAD SHOWERS AND THUNDERSTORMS WILL BE SEEN ACROSS THE REGION THIS AFTERNOON. LOCALLY HEAVY RAIN AND CLOUD TO GROUND LIGHTNING WILL BE THE BIGGEST THREAT FROM STORMS TODAY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ISOLATED THUNDERSTORMS ARE POSSIBLE FRIDAY AFTERNOON. MORE NUMEROUS THUNDERSTORMS WILL DEVELOP LATE SUNDAY AND CONTINUE MONDAY NIGHT. A FEW OF THE THUNDERSTORMS COULD BECOME SEVERE... PRODUCING LARGE HAIL AND DAMAGING WIND. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Local storm report, Jul 10, 2:12 PM EDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
212 PM EDT THU JUL 10 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0418 PM TSTM WND DMG CAMPOBELLO 35.12N 82.15W
07/09/2008 SPARTANBURG SC FIRE DEPT/RESCUE
CAMPOBELLO FIRE DEPARTMENT REPORTED ONE LIVE TREE DOWN
WHICH FELL ON A FENCE NEAR THE INTERSECTION OF CHURCH
STREET AND GREEN STREET. TIME WAS ESTIMATED BASED ON
RADAR.
&&
OUTLAWSpecial weather statement, Jul 10, 2:14 PM EDT, 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 214 PM EDT THU JUL 10 2008 NCZ035-036-056-502-504>506-101915- ALEXANDER-CATAWBA-EASTERN MCDOWELL-GREATER BURKE-GREATER CALDWELL-IREDELL-MCDOWELL MOUNTAINS- 214 PM EDT THU JUL 10 2008 ...STRONG THUNDERSTORMS WILL AFFECT NORTH CAROLINA FOOTHILL AND PIEDMONT LOCATIONS NORTH OF INTERSTATE 40 THROUGH 4 PM EDT... AT 214 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES EAST OF KINGS CREEK TO 4 MILES SOUTH OF GAMEWELL TO LAKE JAMES...MOVING SOUTHEAST AT 15 MPH. THESE STORMS WILL BE NEAR... HUDSON BY 220 PM EDT. LAKE RHODHISS BY 230 PM EDT. RUTHERFORD COLLEGE BY 240 PM EDT. TAYLORSVILLE BY 250 PM EDT. LAKE HICKORY BY 255 PM EDT. LONGVIEW BY 300 PM EDT. PEA SIZE HAIL...AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. 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. HG
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 2:53 PM EDT | Areal Flood Advisory | GSP | Alexander, Burke, Caldwell | 97 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2008Every severe thunderstorm warning in 2008
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.