Alert archive / South Carolina / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 38, NWS Wilmington, NC
NWS Wilmington, NC issued this severe thunderstorm warning at Jun 1, 2001, 12:45 PM EDT for Williamsburg County, South Carolina. It was in force for 60 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
- Jun 1, 2001, 12:45 PM EDT (16:45 UTC)
- Expired
- Jun 1, 2001, 1:45 PM EDT
- In force
- 60 min
- Issued by
- NWS Wilmington, NC
- Area
- Whole counties
County Williamsburg County, SC
The radar
The Wilmington radar (KLTX), 127 km from the middle of the area, began a volume at 16:49 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, 4.8 hours before the alert went out and 84 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
- 1217 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 846 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.4
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 Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 1, 10:05 AM EDT, 2 hours 40 minutes earlier.
Area forecast discussion, Jun 1, 10:05 AM EDT, 2 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON, NC 1005 AM EDT FRI JUN 01 2001 ZFP... WARM FRONT HAS MOVED NORTH OF THE COUNTY WARNING AREA AS FRONT IS NEAR A HATTERAS TO JUST SOUTH OF RALEIGH LINE. MORNING MODIFIED SOUNDINGS ARE SHOWING -4 TO -5 LI AND CAPES BETWEEN 1500 AND 2000 J/KG BY AFTERNOON. CURRENTLY A FEW SHOWERS ARE DEVELOPING OVER THE COASTAL SECTIONS OF SOUTHEAST NORTH CAROLINA. ANALYSIS SHOWING LITTLE CONVERGENCE AT THIS TIME IN THE LOWER LEVELS AND LATEST RUC SHOWING WITH LITTLE DIVERGENCE ALOFT. ONE CONCERN IS THAT THE 12Z RUC IS INDICATE CONVERGENCE ALOFT OVER THE EASTERN CAROLINAS AROUND 18Z. WET-BULB ZERO ALONG THE COAST IS RUNNING BETWEEN 12000 AND 12500 FEET SO THREAT APPEARS TO BE MAINLY FROM WIND. WITH ALL THIS INFO IT APPEARS THAT THAT THE REGION WILL HAVE TO WAIT FOR THE SHORTWAVE THAT IS MOVING THOROUGH ALABAMA AT THIS TIME. FINALLY THE MOISTURE TAP FROM THE GULF MAY BE INHIBITED BY THE CONVECTION OVER THE NORTHEASTERN GULF. WILL HAVE TO MONITOR ITS AFFECTS AS THIS STORM EVOLVES. CWF...OVER THE WATERS WINDS ARE RELATIVELY LIGHT FROM THE SOUTH AT THE BUOYS. NO MAJOR CHANGES PLANNED TO THE CURRENT FORECAST EXCEPT TO INITIALIZE THE FORECAST TO CURRENT TRENDS. PRELIM NUMBERS... FCSTID = 07 ILM 84 70 86 67 / 60 60 10 10 LBT 84 67 87 64 / 60 60 10 10 FLO 85 68 87 65 / 60 60 10 10 MYR 81 70 83 69 / 60 60 10 10 .ILM... NC...NONE. SC...NONE. DRH
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 1:16 PM EDT | Severe Thunderstorm Warning | ILM | Dillon | 44 min |
| Jun 1, 1:55 PM EDT | Severe Thunderstorm Warning | ILM | Dillon, Marion | 50 min |
| Jun 1, 4:30 PM EDT | Severe Thunderstorm Warning | ILM | Horry, Marion | 45 min |
| Jun 1, 6:39 PM EDT | Severe Thunderstorm Warning | ILM | Horry | 66 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2001Every severe thunderstorm warning in 2001
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.