Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 303, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 22, 2003, 4:33 PM EDT for Spartanburg County, Union County, South 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 outline as issued.
The facts
- Issued
- Jul 22, 2003, 4:33 PM EDT (20:33 UTC)
- Expired
- Jul 22, 2003, 5:30 PM EDT
- In force
- 57 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
Counties Spartanburg County, SC, Union County, SC
The radar
The Greer radar (KGSP), 34 km from the middle of the area, began a volume at 20:35 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.6 hours before the alert went out and 224 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
- 323 J/kg
- Mixed-layer CIN
- -124 J/kg
- Mixed-layer LCL
- 1031 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -114 m²/s²
- 0-3 km storm-relative helicity
- -74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
037
WUUS52 KGSP 222033
SVRGSP
SCC083-087-222130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
431 PM EDT TUE JUL 22 2003
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA
UNION COUNTY IN UPSTATE SOUTH CAROLINA
* UNTIL 530 PM EDT
* AT 431 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS FROM 12 MILES EAST OF GREENVILLE TO 12 MILES
NORTHEAST OF LAURENS...MOVING EAST AT 30 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
REIDVILLE AT 435 PM EDT.
INMAN AT 440 PM EDT.
SPARTANBURG AT 440 PM EDT.
WOODRUFF AT 445 PM EDT.
CROSS KEYS AT 445 PM EDT.
SEDALIA AT 450 PM EDT.
ROEBUCK AT 455 PM EDT.
PEOPLE IN THE PATH OF THIS LINE OF SEVERE THUNDERSTORMS SHOULD BE
ALERT FOR LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND
LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM.
LAT...LON 3513 8220 3485 8217 3468 8196 3463 8187
3453 8145 3461 8151 3481 8150 3490 8175
3516 8190
$$
LGL/RBNWhat 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, 1 hour 6 minutes earlier.
Area forecast discussion, Jul 22, 3:27 PM EDT, 1 hour 6 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 26 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
Special weather statement, Jul 22, 3:06 PM EDT, 1 hour 27 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, 1 hour 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, 33 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, 20 minutes 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.
KRENTZLocal storm report, Jul 22, 4:17 PM EDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
417 PM EDT TUE JUL 22 2003
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
340 PM 2 S WELLS SC WIND DAMAGE
07/22/03 OCONEE POWER LINES DOWN REPORTED
BY HAM RADIO OPERATORS.
KRENTZLocal storm report, Jul 22, 4:29 PM EDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
429 PM EDT TUE JUL 22 2003
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
305 PM CARNESVILLE GA WIND DAMAGE
07/22/03 FRANKLIN TRESS DOWN IN 9 LOCATIONS
AROUND COUNTY REPORTED BY
911
DICARLOThe 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, 4:14 PM EDT | Severe Thunderstorm Warning | GSP | Laurens | 46 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.