Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 93, NWS Wilmington, NC
NWS Wilmington, NC issued this severe thunderstorm warning at Jun 1, 1998, 7:04 PM EDT for Horry County, South Carolina. It was in force for 51 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 1, 1998, 7:04 PM EDT (23:04 UTC)
- Expired
- Jun 1, 1998, 7:55 PM EDT
- In force
- 51 min
- Issued by
- NWS Wilmington, NC
- Area
- Whole counties
County Horry County, SC
The radar
The Wilmington radar (KLTX), 51 km from the middle of the area, began a volume at 23:04 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 1, 7:10 PM EDT | Hail 1 | Conway, SC |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 11.1 hours before the alert went out and 147 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
- 2085 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 816 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 9.1
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, 1:33 PM EDT, 5 hours 31 minutes earlier.
Area forecast discussion, Jun 1, 1:33 PM EDT, 5 hours 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON NC 133 PM EDT MON JUN 1 1998 LOOKS AS THO BEST LIFT FROM WEAK S/W MOSTLY STAYS N OF THE ILM CWA THIS EVE. WILL HAVE TO RELY ON TROF/FRNT ITSELF TO HELP IGNITE TSRA INTO ERLY TONITE. NOT MUCH DEEP MOISTURE EITHER...THERE4 LOOK FOR ONLY SCATTRD AT MOST....30 POPS ERLY SHULD DO IT. STILL SOME WARM TEMPS AT 7H...JUST UNDER +10 AND 5H UNDER -10 THRU THE ENTIRE FCST PERIOD... EVENTHO CURRNT ADAP PARAMETERS INDICATE NO CAP. GIVEN ATM PROFILE THRU THE PERIOD...ORGANIZED...PSBL SVR...CONVECTION TO OCCUR IF IT DOES. SFC FRNT DROPPING S TO BECOME ORIENTED E-W ACROSS THE ILM CWA OVERNIGHT. REMNANTS REMAIN ACROSS THE ILM CWA TUE AS THE NEXT SFC TROF/COLD FRNT PUSHES TO THE ILM CWA FROM THE N LATE TUE INTO WED. WEAK S/W ROTATING THRU WSTRLIES AGAIN STAYS JUST TO OUR N...ALONG WITH BEST UVVS. DEEP MOISTURE ONCE AGAIN A PROBLEM. STILL HAVE THE CAPES AND MODEST STAB INDICES FROM DAYS HTG...WILL GO WITH 30 POPS FOR TUE AFTN AND EVE. WED...CFP ERLY WITH FRNT BECMG STATIONARY OVR THE ILM CWA. SOME SUBSIDNCE ALOFT ON WED CULD LIMIT MUCH OF THE TSRA ACTION. HOWEVER...SVRL SFC BNDRYS ACROSS THE REGION CULD HELP IGNITE A 20 POP TSRA. TEMPS...WILL STAY CLOSER TO THE WARMER FWC OVR THE COOLER FAN. THERE STICKING CLOSER TO THE 90 DEGREE READINGS. CWF...WND DIR ACROSS THE ILM CWA THRUOUT FCST PERIOD WILL BE A CHALLENGE. WHERE TO STICK THE STATIONARY FRNT...SEAS...WHAT A NIGHTMARE. HOWEVER THE GUD THING...WILL KEEP CONDITIONS BELOW SCA THRESHOLDS. ILM BB 070/092 071/090 073 332 FLO BB 071/096 070/093 070 332 DCH
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 6:48 PM EDT | Severe Thunderstorm Warning | ILM | Georgetown, Williamsburg | 62 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.