Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 179, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 4, 2003, 4:42 PM EDT for Abbeville County, South Carolina. It was in force for 63 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 4, 2003, 4:42 PM EDT (20:42 UTC)
- Expired
- Jul 4, 2003, 5:45 PM EDT
- In force
- 63 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Abbeville County, SC
The radar
The Greer radar (KGSP), 77 km from the middle of the area, began a volume at 20:45 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
Charleston AFB, SC (KCHS), launched 12:00Z, 8.7 hours before the alert went out and 271 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
- 2173 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 564 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 32 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 4, 1:43 PM EDT, 2 hours 59 minutes earlier.
Area forecast discussion, Jul 4, 1:43 PM EDT, 2 hours 59 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 143 PM EDT FRI JUL 4 2003 ATMOSPHERE SOMEWHAT UNSTABLE TODAY...BUT A WEAK LOW LEVEL AND SFC RIDGE...PLUS A WEAK CAP...SHOULD HELP KEEP WIDESPREAD CONVECTION THIS EVE DOWN SOMEWHAT. A WAVE IS STILL FCST TO DEVELOP OVER THE GULF STATES LATE TONIGHT WITH INCREASED MOISTURE AND INSTABILITY... SLOWLY MOVING ENE ACROSS THE DEEP S THROUGH THE WEEKEND. WILL CONT TO CARRY CHANCE POPS THROUGH THE WEEKEND. MON AND TUE APPEAR SLIGHTLY DRYER...THEN A FRONTAL BOUNDARY APPROACHES FROM THE NW WED INTO THU. FRONT IS FCST TO PUSH THROUGH THU AND HAVE BUMPED POPS UP. EXPECT SUBSIDENCE FRI BEHIND SYSTEM. TEMPS WILL REACH AROUND 90 ACROSS THE LOWER ELEVATIONS...MID 80S MTNS INTO THE MIDDLE OF NEXT WEEK. FCSTID = 77 GSP 70 88 70 85 / 20 40 40 40 AND 70 88 70 85 / 20 40 40 40 CLT 70 89 71 86 / 10 30 30 40 HKY 69 88 70 82 / 10 30 30 40 AVL 65 83 65 83 / 20 40 40 40 .GSP... GA...NONE. NC...NONE. SC...NONE. RB
Hazardous weather outlook, Jul 4, 6:10 AM EDT, 10 hours 32 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-041215- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 610 AM EDT FRI JUL 4 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA... UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA. .DAY ONE...TODAY THERE IS A CHANCE OF THUNDERSTORMS OVER PORTIONS OF THE MOUNTAINS THIS AFTERNOON AND EVENING. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. NED
In the hours before
Special weather statement, Jul 4, 4:37 PM EDT, 5 minutes before
SCZ011-019-042130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 437 PM EDT FRI JUL 4 2003 ...STRONG THUNDERSTORMS AFFECTING ABBEVILLE AND GREENWOOD COUNTIES... AT 420 PM...NATIONAL WEATHER SERVICE RADAR INDICATED NUMEROUS STRONG THUNDERSTORMS ACROSS ABBEVILLE AND GREENWOOD COUNTIES...MAINLY ALONG AND SOUTH OF HIGHWAY 72. THESE STORMS WILL CONTINUE TO DRIFT OR DEVELOP SLOWLY NORTHWARD ACROSS THE COUNTIES THIS AFTERNOON. THE STRONGER STORMS WILL LIKELY PRODUCE GUSTY WINDS OF 40 TO 50 MPH...TORRENTIAL RAINFALL IN EXCESS OF AN INCH PER HOUR...AND SMALL HAIL. SOME OF THE STRONGER STORMS COULD BRIEFLY BECOME SEVERE... PRODUCING HAIL TO THE SIZE OF PENNIES AND WIND GUSTS TO 60 MPH. IN ADDITION...FREQUENT LIGHTNING WILL LIKELY ACCOMPANY THESE STORMS WILL LIKELY REACH THE CITIES OF ABBEVILLE AND GREENWOOD BY 5 PM. THE STORMS MAY ALSO AFFECT PORTIONS OF LAKE GREENWOOD BETWEEN 5:00 AND 5:15 PM. BOATERS ON LAKE GREENWOOD SHOULD BE PREPARED TO MOVE TO SHORE QUICKLY DURING THIS TIME. THE NATIONAL WEATHER SERVICE WILL CONTINUE TO MONITOR THE PROGRESS OF OF THESE STORMS FOR POSSIBLE SEVERE THUNDERSTORM WARNINGS IN THE NEAR FUTURE. LANE
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 6:43 PM EDT | Severe Thunderstorm Warning | GSP | Caldwell | 47 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.