Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 198, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 11, 2003, 4:01 PM EDT for Cherokee County, South Carolina. It was in force for 44 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 11, 2003, 4:01 PM EDT (20:01 UTC)
- Expired
- Jul 11, 2003, 4:45 PM EDT
- In force
- 44 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Cherokee County, SC
The radar
The Greer radar (KGSP), 58 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 193 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
- 24 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 870 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 11, 1:50 PM EDT, 2 hours 11 minutes earlier.
Area forecast discussion, Jul 11, 1:50 PM EDT, 2 hours 11 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 150 PM EDT FRI JUL 11 2003 WILL UPDATE TO INCLUDE NEW SEVERE THUNDERSTORM WATCH FOR UPSTATE SC AND NE GA THROUGH 8 PM EDT. FCSTID = 33 .GSP... GA...NONE. NC...NONE. SC...NONE. HG
Hazardous weather outlook, Jul 11, 5:11 AM EDT, 10 hours 50 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-111100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 511 AM EDT FRI JUL 11 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA... UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA. .DAY ONE...TODAY A COLD FRONT WILL APPROACH THE REGION TODAY...BRINGING SCATTERED SHOWERS AND THUNDERSTORMS TO THE AREA. A FEW OF THE STORMS COULD PRODUCE SEVERE WEATHER...ESPECIALLY IN THE PIEDMONT AND FOOTHILLS. PLEASE SEE THE SEVERE WEATHER OUTLOOK...CAESPSGSP...FOR MORE INFORMATION. .DAYS TWO THROUGH SEVEN... SCATTERED...MAINLY AFTERNOON AND EVENING THUNDERSTORMS WILL BE POSSIBLE DURING MUCH OF THE NEXT 7 DAYS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON. LANE
In the hours before
Special weather statement, Jul 11, 11:25 AM EDT, 4 hours 36 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-112100- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1125 AM EDT FRI JUL 11 2003 ...A FEW SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA... A COLD FRONT WILL MOVE SLOWLY ACROSS THE MOUNTAINS EARLY THIS AFTERNOON AND THEN INTO THE FOOTHILLS AND PIEDMONT BY LATE AFTERNOON. THE FRONT WILL ENCOUNTER WARM AND UNSTABLE AIR...ALLOWING SCATTERED TO NUMEROUS THUNDERSTORMS TO DEVELOP AS THE AFTERNOON PROGRESSES. WITH WINDS ALOFT IN THE ATMOSPHERE RATHER STRONG FOR THIS TIME OF YEAR...THESE STORMS WILL HAVE THE POTENTIAL TO ORGANIZE INTO STRONG CELLS OR LINES AND PRODUCE DAMAGING WIND GUSTS UP TO 60 MPH. THE THUNDERSTORMS MAY ALSO PRODUCE HAIL THE SIZE OF PENNIES...FREQUENT LIGHTNING...AND LOCALLY HEAVY RAINFALL. THE MOUNTAINS WILL MAINLY BE AFFECTED THROUGH 2 PM THIS AFTERNOON...BUT THE GREATER CHANCE OF SEVERE WEATHER WILL BE OVER FOOTHILL AND PIEDMONT LOCATIONS LATER THIS AFTERNOON AND THIS EVENING. SPOTTER GROUPS SHOULD BE PREPARED TO ACTIVATE QUICKLY THIS AFTERNOON IF SEVERE WEATHER DEVELOPS. DISPATCHERS SHOULD ENSURE COUNTY THAT EMERGENCY MANAGEMENT OFFICIALS ARE AWARE OF THIS INFORMATION. HG
Special weather statement, Jul 11, 3:06 PM EDT, 55 minutes before
SCZ004-005-010-112000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 306 PM EDT FRI JUL 11 2003 ...STRONG THUNDERSTORMS TO AFFECT THE AREA FROM CLEMSON TO ANDERSON THROUGH 4 PM... AT 302 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS STRETCHING FROM CLEMSON TO OAKWAY WHICH WAS MOVING SOUTH AT 15 MPH. THIS LINE WILL PRODUCE FREQUENT LIGHTNING... WIND GUSTS OF 35 MPH...AND TORRENTIAL RAINFALL AT THE RATE OF AN INCH PER HOUR. THESE THUNDERSTORMS WILL AFFECT THE ANDERSON AREA BETWEEN 330 AND 4 PM. THE NATIONAL WEATHER SERVICE WILL WATCH THIS LINE OF THUNDERSTORMS VERY CLOSELY IN CASE ANY WARNINGS BECOME NECESSARY. HG
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 4:57 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Mecklenburg | 63 min |
| Jul 11, 5:15 PM EDT | Severe Thunderstorm Warning | GSP | Rowan | 45 min |
| Jul 11, 6:58 PM EDT | Flash Flood Warning | GSP | Mecklenburg, Union | 3 hr |
| Jul 10, 8:31 PM EDT | Severe Thunderstorm Warning | GSP | Greenwood, Laurens | 44 min |
| Jul 10, 9:21 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood, Laurens | 39 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.