Alert archive / South Carolina / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 13, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Mar 3, 1991, 5:19 PM EST for Williamsburg County, South Carolina. It was in force for 41 min.
The area
The counties it named.
The facts
- Issued
- Mar 3, 1991, 5:19 PM EST (22:19 UTC)
- Expired
- Mar 3, 1991, 6:00 PM EST
- In force
- 41 min
- Issued by
- NWS Charleston, SC
- Area
- Whole counties
County Williamsburg County, SC
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 10.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 637 m²/s²
- 0-3 km storm-relative helicity
- 883 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHS 032220 SVRCHS SCC089-032300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHARLESTON SC 519 PM EST SUN MAR 3 1991 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CAROLINA ...WILLIAMSBURG COUNTY THIS INCLUDES THE COMMUNITIES OF KINGSTREE AT 520 PM EST A SEVERE THUNDERSTORM WAS LOCATED 10 MILES SOUTHWEST OF KINGSTREE SC MOVING TOWARD THE NORTHEAST AT 50 MILES AN HOUR. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCXY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
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, Mar 3, 1:48 PM EST, 3 hours 31 minutes before
SC007-008-031900- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE CHARLESTON SC 140 PM EST SUN MAR 3 1991 ...TORNADO WATCH IN EFFECT UNTIL 7PM EST... A LINE OF THUNDERSTORMS WAS NOTED FROM 20 MILES NORTHEAST OF AUGUSTA TO 55 MILES WEST OF SAVANNAH...AND FROM 20 TO 40 MILES WEST AND SOUTHWEST OF SAVANNAH. THESE AREAS WILL BE CLOSELY WATCHED FOR SIGNS OF SEVERE WEATHER. A LARGE AREA OF RAIN AND THUNDERSTORMS CONTINUED FROM THE WILMING- TON AREA OFFSHORETO 60 MILES SOUTHEAST OF CHARLESTON THEN TO 80 MILES SOUTHEAST OF SAVANNAH. MOVEMENT WAS TOWARD THE NORTH- NORTHEAST AT 55 MILES AN HOUR. STAY TUNED TO RADIO OR TV..OR NOAA WEATHER RADIO FOR THE LATEST STATEMENTSx AND POSSIBLE WARNINGS. JFT
Special weather statement, Mar 3, 2:49 PM EST, 2 hours 30 minutes before
GAZ010-013-014-015-031900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAVANNAH GA 248 PM EST SUN MAR 3 1991 ...A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND SOUTHERN GEORGIA UNTIL 5 PM EST THIS AFTERNOON... ...A TORNADO WATCH REMAINS IN EFFECT FOR SOUTHEAST GEORGIA... EASTERN SOUTH CAROLINA AND THE ADJACENT COASTAL WATERS UNTIL 7 PM EST... AT 240 PM EST THE SAVANNAH WEATHER RADAR SHOWED A LINE OF VERY STRONG THUNDERSTORMS FROM 5 MILES SOUTH OF STATESBORO TO 10 MILES WEST OF HINESVILLE. MOVEMENT WAS TO THE NORTHEAST AT 50 MPH. THESE THUNDERSTORMS WILL MOVE INTO EFFINGHAM AND WEST CHATHAM COUNTIES BY 315 PM EST. BRIEF HEAVY RAIN AND GUSTY WINDS UP TO 50 MPH CAN BE EXPECTED WITH THESE THUNDERSTORMS. RESIDENTS OF SOUTH CENTRAL AND SOUTHEAST GEORGIA SHOULD REMAIN ALERT FOR THE POTENTIAL OF SEVERE THUNDERSTORMS AND POSSIBLE TORNADOES THIS AFTERNOON.
Special weather statement, Mar 3, 2:51 PM EST, 2 hours 28 minutes before
SC007-008-032000- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE CHARLESTON SC 245 PM EST SUN MAR 3 1991 ...TORNADO WATCH IN EFFECT UNTIL 7PM EST... STRONG THUNDERSTORMS..SOME WITH HAIL..WERE NOTED FROM HAMPTON COUNTY INTO JASPER AND BEAUFORT COUNTIES IN SOUTHERN SOUTH CAROLINA. ANOTHER AREA OF THUNDERSTORMS CONTINUED FROM 20 MILES NORTHWEST OF COLUMBIA THROUGH THE AUGUSTA AREA TO 50 MILES NORTHWEST OF SAVANNAH. A LARGE AREA OF RAIN AND THUNDERSTORMS CONTINUED FROM THE WILMING- TON AREA OFFSHORE TO 75 MILES SOUTHEAST OF CHARLESTON THEN TO 100 MILES SOUTHEAST OF SAVANNAH. MOVEMENT WAS TOWARD THE NORTH- NORTHEAST AT 55 MILES AN HOUR. STAY TUNED TO RADIO OR TV..OR NOAA WEATHER RADIO FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS. JFT
Special weather statement, Mar 3, 2:56 PM EST, 2 hours 23 minutes before
GAZ010-013-014-015-032045- SPECIAL WEATHER STATEMENT...CORRECTION TO EXP. TIME CODE... NATIONAL WEATHER SERVICE SAVANNAH GA 248 PM EST SUN MAR 3 1991 ...A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND SOUTHERN GEORGIA UNTIL 5 PM EST THIS AFTERNOON... ...A TORNADO WATCH REMAINS IN EFFECT FOR SOUTHEAST GEORGIA... EASTERN SOUTH CAROLINA AND THE ADJACENT COASTAL WATERS UNTIL 7 PM EST... AT 240 PM EST THE SAVANNAH WEATHER RADAR SHOWED A LINE OF VERY STRONG THUNDERSTORMS FROM 5 MILES SOUTH OF STATESBORO TO 10 MILES WEST OF HINESVILLE. MOVEMENT WAS TO THE NORTHEAST AT 50 MPH. THESE THUNDERSTORMS WILL MOVE INTO EFFINGHAM AND WEST CHATHAM COUNTIES BY 315 PM EST. BRIEF HEAVY& RAIN AND GUSTY WINDS UP TO 50 MPH CAN BE EXPECTED WITH THESE THUNDERSTORMS. RESIDENTS OF SOUTH CENTRAL AND SOUTHEAST GEORGIA SHOULD REMAIN ALERT FOR THE POTENTIAL OF SEVERE THUNDERSTORMS AND POSSIBLE TORNADOES THIS AFTERNOON.
Special weather statement, Mar 3, 3:50 PM EST, 1 hour 29 minutes before
SC007-008-032200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE CHARLESTON SC 345 PM EST SUN MAR 3 1991 ...TORNADO WATCH IN EFFECT UNTIL 7PM EST... STRONG THUNDERSTORMS..SOME WITH HAIL..WERE NOTED FROM BARNWELL COUNTY INTO JASPER AND BEAUFORT COUNTIES IN SOUTHERN SOUTH CAROLINA. ANOTHER AREA OF THUNDERSTORMS CONTINUED FROM JUST SOUTH OF CHARLOTTE NORTH CAROLINA TO JUST WEST OF COLUMBIA THEN TO 20 MILES SOUTHEAST OF AUGUSTA. RAIN CONTINUED OFFSHORE FROM CAPE FEAR NORTH CAROLINA TO 150 MILES SOUTHEAST OF SAVANNAH. MOVEMENT OF ALL PRECIPITATION WAS TOWARD THE NORTHEAST AT 45 MILES AN HOUR. STAY TUNED TO RADIO OR TV..OR NOAA WEATHER RADIO FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS. JFT
Special weather statement, Mar 3, 4:05 PM EST, 1 hour 14 minutes before
GAZ010-013-014-015-032300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAVANNAH GA 400 PM EST SUN MAR 3 1991 ...THE TORNADO WATCHES THAT WERE IN EFFECT FOR GEORGIA UNTIL 5 AND 7 PM EST HAVE BEEN CANCELLED... A DEEP LOW PRESSURE SYSTEM OVER EAST CENTRAL GEORGIA WAS PRODUCING VERY STRONG SOUTHWEST TO WEST WINDS ACROSS SOUTHEAST GEORGIA THIS AFTERNOON. SUSTAINED WINDS OF 35 MPH WITH FREQUENT GUSTS TO 55 MPH HAVE BEEN OCCURRING AT THE SAVANNAH AIRPORT. THE HIGHEST WIND RECORDED SO FAR WAS 63 MPH AT 348 PM EST. SCATTERED SHOWERS CONTINUED IN AN AREA BETWEEN STATESBORO...GLENVILLE AND SAVANNAH. MOVEMENT WAS TO THE NORTHEAST AT 50 MPH. THE STRONG WINDS WILL CONTINUE THIS AFTERNOONt AND EVENING AS THE LOW PRESSURE SYSTEM MOVES NORTHEAST INTO THE CAROLINAS.
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 3, 4:42 AM EST | Severe Thunderstorm Warning | CHS | Dorchester | 48 min |
| Mar 3, 9:00 AM EST | Severe Thunderstorm Warning | CHS | Berkeley, Dorchester | 30 min |
| Mar 3, 9:09 AM EST | Severe Thunderstorm Warning | CHS | Charleston | 36 min |
| Mar 3, 9:26 AM EST | Tornado Warning | CHS | Berkeley, Williamsburg | 64 min |
| Mar 3, 9:36 AM EST | Tornado Warning | CHS | Berkeley, Williamsburg | 54 min |
| Mar 3, 9:52 AM EST | Severe Thunderstorm Warning | CHS | Georgetown | 38 min |
| Mar 3, 10:14 AM EST | Severe Thunderstorm Warning | CHS | Horry | 61 min |
| Mar 3, 2:11 PM EST | Severe Thunderstorm Warning | CHS | Jasper | 64 min |
| Mar 3, 2:11 PM EST | Severe Thunderstorm Warning | CHS | Beaufort | 64 min |
| Mar 3, 3:16 PM EST | Severe Thunderstorm Warning | CHS | Hampton, Jasper | 59 min |
| Mar 3, 3:54 PM EST | Severe Thunderstorm Warning | CHS | Colleton | 66 min |
| Mar 3, 4:26 PM EST | Severe Thunderstorm Warning | CHS | Dorchester | 64 min |
| Mar 3, 4:39 PM EST | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 66 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 1991Every severe thunderstorm warning in 1991
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.