Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 302, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 22, 2003, 4:14 PM EDT for Laurens County, South Carolina. It was in force for 46 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
- Jul 22, 2003, 4:14 PM EDT (20:14 UTC)
- Expired
- Jul 22, 2003, 5:00 PM EDT
- In force
- 46 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Laurens County, SC
The radar
The Greer radar (KGSP), 36 km from the middle of the area, began a volume at 20:15 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
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 nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.2 hours before the alert went out and 259 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
- 491 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 876 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
969 WUUS52 KGSP 222014 SVRGSP SCC059-222100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 414 PM EDT TUE JUL 22 2003 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN LAURENS COUNTY IN UPSTATE SOUTH CAROLINA * UNTIL 500 PM EDT * AT 414 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES WEST OF LAURENS...OR ABOUT 5 MILES SOUTH OF GRAY COURT...MOVING EAST AT 60 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... GRAY COURT AT 415 PM EDT. ORA AT 420 PM EDT. LAURENS 430 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. LAT...LON 3458 8219 3443 8214 3455 8186 3473 8212 $$ LGL/RBN
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 22, 3:27 PM EDT, 47 minutes earlier.
Area forecast discussion, Jul 22, 3:27 PM EDT, 47 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 327 PM EDT TUE JUL 22 2003 LARGE MCS SUPPORTED BY STRONG CONVERGENCE ALONG APPROACHING FRONTAL BOUNDARY...AND UPPER SUPPORT IN THE FORM OF APPROACHING MID LEVEL SW TROUGH...AND UPPER DIVERGENCE IN RRQ OF 90+KT H2 JET...HAS PUSHED INTO THE WESTERN 1/4 OF THE FORECAST AREA. COMBINATION OF MODERATELY UNSTABLE AIRMASS AND STRENGTHENING SHEAR PROFILE IS RESULTING IN ORGANIZED...INTENSE CONVECTION ALONG THE LEADING EDGE OF THIS MCS...AND EXPECT THE SEVERE THREAT TO CONTINUE ACROSS THE AREA THROUGH THE EARLY EVENING. WE WILL ADVERTISE CATEGORICAL POPS ACROSS THE WEST THROUGH THE REMAINDER OF THE AFTERNOON INTO THE EARLY EVENING. THE AIRMASS HAS BECOME QUITE UNSTABLE ACROSS THE EASTERN HALF OF THE CWFA...AND WITH THE STRONG FORCING AVAILABLE... CONVECTION WILL HAVE NO PROBLEM SWEEPING TOWARD THE I-77 CORRIDOR EARLY IN THE FIRST PERIOD...SO WILL ADVERTISE CATEGORICAL POPS ACROSS THE EASTERN HALF DURING THE EARLY EVENING. THE QUESTION THEN BECOMES WHETHER OR NOT ANOTHER MCS WILL DEVELOP BEHIND THIS SYSTEM LATER TONIGHT. THE ATMOSPHERE ACROSS THE REGION WILL NO DOUBT BE EXTREMELY WORKED OVER BY THIS EVENINGS CONVECTION. MEANWHILE...THE MOST LIKELY AREA FOR NEW MCS DEVELOPMENT THIS EVENING WOULD BE AHEAD OF THE FRONT ACROSS NORTH ALABAMA/NORTH GEORGIA...WHERE THE BEST COMBO OF BL CONVERGENCE/UPPER JET DIVERGENCE WILL BE CO-LOCATED. HOWEVER...THE AIRMASS IN THIS AREA IS STRUGGLING TO RECOVER IN THE WAKE OF THE CURRENT ACTIVITY. THEREFORE...CHANCES ARE IFFY THAT WE WILL SEE ANOTHER CONVECTIVE SYSTEM TO MOVE INTO THE AREA LATER TONIGHT. WITH UNSEASONABLY STRONG FORCING PERSISTING OVERNIGHT...WILL CONTINUE WITH HIGH CHANCE TO LIKELY POPS AFTER MIDNIGHT...BUT FEEL THAT MOST OF THE EXCITEMENT SHOULD BE OVER BY MID TO LATE EVENING. THE FRONT IS EXPECTED TO HANG UP IN THE SOUTHERN AND EASTERN PORTION OF THE FORECAST AREA TOMORROW...WHICH IS ALSO WHERE THE BEST UPPER FORCING WILL SHIFT. WE WILL HOLD ON TO A LIKELY POP ACROSS THE SOUTHERN AND EASTERN TIER OF COUNTIES...MAINLY DURING THE MORNING HOURS. POPS WILL BE TAPERED BACK TO A LOW CHANCE BY TOMORROW AFTERNOON ACROSS THE WEST. THE FRONT REMAINS STALLED ACROSS THE AREA THROUGH THURSDAY...BUT BECOMES MORE DIFFUSE...WHILE UPPER LEVEL SUPPORT WILL SHIFT EAST OF THE REGION. WE WILL MAINTAIN MAINLY LOW CHANCE POPS ACROSS THE AREA...WITH THE BEST CHANCE REMAINING IN THE EAST AND SOUTH. EASTERN TROUGH DEAMPLIFIES FOR THE WEEKEND...MAKING THE CURRENT DRY FORECAST FOR FRI-SUN STILL SEEM REASONABLE. MEANWHILE...MEDIUM RANGE MODELS CONTINUE TO INDICATE A REAMPLIFICATION OF THE TROUGH EARLY NEXT WEEK...SO POPS WILL RETURN TO THE FORECAST. .GSP... GA...NONE. NC...NONE. SC...NONE. LANE
Hazardous weather outlook, Jul 22, 6:07 AM EDT, 10 hours 7 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-221200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 607 AM EDT TUE JUL 22 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA... UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA. .DAY ONE...TODAY SHOWERS AND THUNDERSTORMS ARE ANTICIPATED FOR ALL OF THE FORECAST AREA TODAY. SOME OF THE STORMS COULD REACH SEVERE LEVELS...WITH DAMAGING WIND THE GREATEST SEVERE WEATHER THREAT DURING THE AFTERNOON. MODERATE TO HEAVY RAIN CAN ALSO BE EXPECTED DURING THE STRONGEST STORMS. .DAYS TWO THROUGH SEVEN... SHOWERS AND THUNDERSTORMS WILL AFFECT THE REGION AGAIN TONIGHT...AND WEDNESDAY. THERE WILL STILL BE A CHANCE OF DAMAGING WIND GUSTS TONIGHT...AND THE THREAT OF LARGE HAIL IS EXPECTED TO INCREASE LATE TONIGHT AND WEDNESDAY. CONVECTION IS EXPECTED TO BECOME MORE SCATTERED FOR WEDNESDAY NIGHT AND THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY AND TONIGHT. BURRUS
In the hours before
Local storm report, Jul 22, 2:48 PM EDT, 1 hour 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
248 PM EDT TUE JUL 22 2003
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
244 PM MT AIRY GA HAIL
07/22/03 HABERSHAM PEA SIZE HAIL AND 45 MPH
RECORDED WIND GUST AT
COUNTY EOC BUILDING.
LAMBLocal storm report, Jul 22, 3:01 PM EDT, 1 hour 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
301 PM EDT TUE JUL 22 2003
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
252 PM TOCCOA GA WIND DAMAGE
07/22/03 STEPHENS FRANKLIN 911 REPORTED
TREES DOWN ON HWY 320.
257 PM TOCCOA GA WIND DAMAGE
07/22/03 STEPHENS FRANKLIN EOC REPORTED
TREES DOWN ON WALKER RD.
130 PM CASHIERS NC WIND DAMAGE
07/22/03 JACKSON COUNTY EOC REPORTED TREE
DOWN ON CASHIERS LAKE RD.
LAMBSpecial weather statement, Jul 22, 3:06 PM EDT, 1 hour 8 minutes before
NCZ034>037-054>056-066>069-221915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 306 PM EDT TUE JUL 22 2003 ...STRONG THUNDERSTORMS EXPECTED TO MOVE OFF THE BLUE RIDGE... AN AREA OF STRONG THUNDERSTORMS WILL MOVE EAST AND NORTHEAST OFF THE BLUE RIDGE AND OUT ACROSS THE FOOTHILLS THROUGH LATE AFTERNOON. SOME OF THE THUNDERSTORMS WILL PRODUCE WIND GUSTS OF 40 TO 50 MPH AND SMALL HAIL. IF THE THUNDERSTORMS HOLD TOGETHER...THEY WILL MOVE ACROSS THE PIEDMONT DURING THE LATE AFTERNOON. A FEW OF THE THUNDERSTORMS COULD DEVELOP ENOUGH TO PRODUCE DAMAGING WIND GUSTS. PEOPLE ACROSS THE FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA SHOULD MONITOR LOCAL MEDIA OUTLETS AND LISTEN FOR LATER STATEMENTS OR WARNINGS. THE NATIONAL WEATHER SERVICE WILL CONTINUE TO MONITOR THE PROGRESS OF THIS DEVELOPING WEATHER SITUATION. MOORE
Local storm report, Jul 22, 3:33 PM EDT, 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
333 PM EDT TUE JUL 22 2003
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
300 PM TOCCOA GA WIND DAMAGE
07/22/03 STEPHENS EOC REPORTED DOWNED TREES
ON HWY 17 ALONG WITH
MARBLE SIZE HAIL.
315 PM OAKWAY SC WIND DAMAGE
07/22/03 OCONEE HAM REPORTED TREES DOWN
ON HWY 182 AND 24.
330 PM OAKWAY SC WIND DAMAGE
07/22/03 OCONEE HAM REPORTED TREES DOWN
ON SOUTH FRIENDSHIP RD.
LAMBLocal storm report, Jul 22, 4:00 PM EDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
400 PM EDT TUE JUL 22 2003
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
340 PM TWIN LAKES SC WIND DAMAGE
07/22/03 PICKENS CAMPERS OVERTURNED AND
TREES DOWN REPORTED BY
COUNTY EMERGENCY
MANAGEMENT OFFICIALS.
KRENTZLocal storm report, Jul 22, 4:13 PM EDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
413 PM EDT TUE JUL 22 2003
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
340 PM SENECA SC WIND DAMAGE
07/22/03 OCONEE POWER LINES DOWN
REPORTED BY HAM
OPERATORS.
KRENTZThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 3:01 PM EDT | Severe Thunderstorm Warning | GSP | Oconee | 44 min |
| Jul 22, 3:16 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson | 44 min |
| Jul 22, 3:21 PM EDT | Severe Thunderstorm Warning | GSP | Pickens | 54 min |
| Jul 22, 3:49 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 41 min |
| Jul 22, 3:53 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 37 min |
| Jul 22, 4:33 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg, Union | 57 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2003Every severe thunderstorm warning in 2003
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.