Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 50, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 1, 1998, 7:12 AM EDT for Laurens County, South Carolina. It was in force for 48 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
- May 1, 1998, 7:12 AM EDT (11:12 UTC)
- Expired
- May 1, 1998, 8:00 AM EDT
- In force
- 48 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Laurens County, SC
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 11.2 hours before the alert went out and 261 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
- 162 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 517 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 May 1, 1:39 AM EDT, 5 hours 33 minutes earlier.
Area forecast discussion, May 1, 1:39 AM EDT, 5 hours 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE/SPARTANBURG, SC
139 AM EDT FRI MAY 1 1998
FFC: CHC AM THUNDRSTORM...OTHRWS CLIGHT CHC RW THIS AFTN AND AGAIN
SATURDAY. BECOMING BREEZY LATE.
RAH: CHC AM RW/TRW MTNS...PM RW/TRW ERN SECTIONS. PARTLY SUNNY
FOR SAT.
CAE: CHC AM RW/TRW IN WEST...CHC PM RW EAST TDY AND SATURDAY
COLD FRONT APPROACHING ERN TN THIS AM...EXPECTED TO CROSS INTO NC MTNS
THIS MORNING...SHUD BE A SLO PROGRESSION EWRD BASED ON UPR LEVEL FLO
AND 00Z MDL RUNS. WATCHING TSTMS IN NE GA WEAKEN AS THEY ENTER MORE
STABLE ATMOS IN COLD AIR POOLING REGIME. ETA GRIDS BRING BRUNT OF COLD
POOL CLOSE TO NC MTNS LATE AFTN...BUT BY THAT TIME THE BEST LOW LVL
MOISTR CNVRGNC AND OMEGA SHUD BE ALONG COAST IN DVLPNG BAROCLINIC
ZONE...SO ONLY SLIM THUNDR CHCS FOR AFTN IN WEST. HWVR..AMPLE LOW LEVEL
MOISTR REMAINS TO KEEP SUNSHINE TO A MINIMUM.
DOWNSLOPE FLO SHUD HELP SCOUR OUT LOW LVL CLOUDS IN FVRD AREAS LATE
TNT...BUT ST SHUD FORM AGAIN IN PREDAWN. WITH LEE TROF REMAINING IN
VCNTY CWA THROUGH SAT...SHUD SEE ONLY PARTLY SUNNY SKIES OUTSIDE OF
MTNS SAT AND WITH TAIL END OF FIRST UPR TROF..VARIOUS SHORTWAVES CUD
TRIGGER AN ISOLD RW ALMOST ANYWHERE. MTNS SHUD STAY CLOUDY INTO
SATURDAY...AND CWA REMAINS UNSTABLE AS WE AWAIT APPROACH OF NEXT UPR
LEVEL SYSTEM FOR END OF WKND.
AVL 59/49/62 4/2/2
CLT 66/53/68 5/1/2
GSP 67/52/68 4/1/2
BURRUSThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 5:48 PM EDT | Severe Thunderstorm Warning | GSP | Rowan | 32 min |
| May 1, 3:40 AM EDT | Severe Thunderstorm Warning | GSP | Franklin | 55 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 1998Every severe thunderstorm warning in 1998
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.