Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 10, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Feb 28, 1998, 5:47 AM EST for Richland County, Sumter County, South Carolina. It was in force for 43 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
- Feb 28, 1998, 5:47 AM EST (10:47 UTC)
- Expired
- Feb 28, 1998, 6:30 AM EST
- In force
- 43 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
Counties Richland County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 44 km from the middle of the area, began a volume at 10:50 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 00:00Z, 10.8 hours before the alert went out and 133 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
- 167 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 654 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
085 WUUS1 KCAE 281048 RRA SVRCAE SCC079-085-281130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBIA SC 547 AM EST SAT FEB 28 1998 THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 AM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CAROLINA ...SOUTHERN RICHLAND COUNTY...SUMTER COUNTY AT 544 AM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR GADSDEN IN SOUTHERN RICHLAND COUNTY. THE STORM WAS MOVING NORTHEAST AT 45 MPH AND WILL REACH DOWNTOWN SUMTER BY 610 AM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. THESE WINDS BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. LM
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.
In the hours before
Special weather statement, Feb 28, 5:34 AM EST, 13 minutes before
SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-035- 036-037-038-041-GAZ040-063-064-065-077-281700- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 534 AM EST SAT FEB 28 1998 THE OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN SOUTH CAROLINA: AIKEN BAMBERG BARNWELL CALHOUN CHESTERFIELD CLARENDON EDGEFIELD FAIRFIELD KERSHAW LANCASTER LEE LEXINGTON MCCORMICK NEWBERRY ORANGEBURG RICHLAND SALUDA SUMTER THE OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN GEORGIA: BURKE COLUMBIA LINCOLN MCDUFFIE RICHMOND A FRONTAL BOUNDARY OVER CENTRAL SOUTH CAROLINA THIS MORNING WILL HOLD WARM...MOIST AND UNSTABLE AIR OVER THE AREA. THE FRONT IS EXPECTED TO MOVE EAST THIS AFTERNOON. AS A RESULT...CLUSTERS OF THUNDERSTORMS WILL CROSS THE AREA DURING THE MORNING THEN SHIFT EAST OF THE AREA FOR THE AFTERNOON. THE MAIN THREAT FROM THE STORMS WILL BE LARGE HAIL...GUSTY WINDS AND HEAVY RAIN. MOST STORMS WILL OCCUR EAST OF A LINE THROUGH AUGUSTA...BATESBURG...WINNSBORO AND GREAT FALLS AND LANCASTER. ALL INTERESTS SHOULD BE AWARE OF THIS POTENTIAL FOR SEVERE WEATHER AND KEEP POSTED ON WEATHER STATEMENTS...WATCHES... OR WARNINGS WHICH MAY BE ISSUED BY THE NATIONAL WEATHER SERVICE. BE PREPARED TO TAKE QUICK ACTION IF THREATENING WEATHER IS SIGHTED OR A WARNING IS ISSUED FOR YOUR AREA. EMERGENCY PREPAREDNESS OFFICIALS ARE REQUESTED TO REMAIN ALERT AND MAKE PRELIMINARY PLANS TO DEAL WITH SEVERE WEATHER SHOULD IT OCCUR. SEVERE WEATHER SPOTTERS...INCLUDING AMATEUR RADIO OPERATORS... SHOULD MONITOR THIS WEATHER SITUATION AND RELAY REPORTS PROMPTLY TO THE NEAREST NATIONAL WEATHER SERVICE OFFICE. LM
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 5:04 AM EST | Severe Thunderstorm Warning | CAE | Aiken, Orangeburg | 26 min |
| Feb 28, 5:20 AM EST | Severe Thunderstorm Warning | CAE | Calhoun, Lexington | 25 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; radar from the NEXRAD Level II archive.