Alert archive / North Carolina / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 275, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 4, 2002, 5:34 PM EDT for Caldwell County, North Carolina. It was in force for 41 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
- Sep 4, 2002, 5:34 PM EDT (21:34 UTC)
- Expired
- Sep 4, 2002, 6:15 PM EDT
- In force
- 41 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Caldwell County, NC
The radar
The Greer radar (KGSP), 134 km from the middle of the area, began a volume at 21:37 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, 9.6 hours before the alert went out and 149 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
- 1009 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 1341 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 71 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 Sep 4, 2:02 PM EDT, 3 hours 32 minutes earlier.
Area forecast discussion, Sep 4, 2:02 PM EDT, 3 hours 32 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 202 PM EDT WED SEP 4 2002 COLD FRONT DROPPING TOWARD AREA NOW. CAPES EXPECTED TO BE QUITE HIGH ALONG I-77...AND SEVERE WEATHER POSSIBLE. FROPA EXPECTED LATE TONIGHT...SO WILL RUN CHANCE POPS THROUGH THIS EVENING. REST OF FORECAST FEATURES DRY AIR OVER NC...WITH MARGINAL MOISTURE GA/SC. NO MENTIONABLE POPS THU-SAT. AVN/ETA TEMPERATURES CONSIDERABLY HIGHER THAN NGM. PREFER CONSERVATIVE APPROACH ON TEMPERATURES...SINCE AIR MASS CHANGE NOT TOO DRAMATIC...AND FRONT DOES NOT SINK THAT FAR S. SURFACE AND UPPER RIDGING ARE EXPECTED TO REMAIN FIRMLY IN CONTROL WITH DRY WEATHER ACROSS THE REGION DURING THE MEDIUM RANGE PERIOD...THUS WILL NOT STRAY FAR FROM MEX GUIDANCE. FCSTID = 7 GSP 68 90 66 85 / 30 10 20 20 AND 69 92 67 86 / 30 10 20 20 CLT 67 89 65 84 / 40 10 10 10 HKY 65 88 61 83 / 30 10 10 10 AVL 62 86 58 81 / 30 10 10 10 .GSP... GA...NONE. NC...NONE. SC...NONE. O7
In the hours before
Local storm report, Sep 4, 4:11 PM EDT, 1 hour 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
411 PM EDT WED SEP 04 2002
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
408 PM 6 N STATESVILLE NC .75 INCH HAIL
09/04/02 IREDELL DIME HAIL. REPORT RELAYED
FROM COUNTY EOC.
MOOREThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 4:00 PM EDT | Severe Thunderstorm Warning | GSP | Iredell | 60 min |
| Sep 4, 5:19 PM EDT | Severe Thunderstorm Warning | GSP | Iredell | 41 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2002Every severe thunderstorm warning in 2002
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.