Alert archive / South Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 337, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 30, 1990, 5:45 PM EDT for Aiken County, Barnwell County, South Carolina. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Aug 30, 1990, 5:45 PM EDT (21:45 UTC)
- Expired
- Aug 30, 1990, 6:45 PM EDT
- In force
- 60 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Aiken County, SC, Barnwell County, SC
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 9.8 hours before the alert went out and 154 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
- 478 J/kg
- Mixed-layer CIN
- -191 J/kg
- Mixed-layer LCL
- 1545 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAGS 302145 SVRAGS SCC003-011-302245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUGUSTA GA 545 PM EDT THU AUG 30 1990 THE NATIONAL WEATHER SERVICE IN AUGUSTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL SOUTH CAROLINA ...AIKEN COUNTY...NORTHERN BARNWELL COUNTY AT 545 PM WEATHER SERVICE RADAR DETECTS A SEVERE THUNDERSTORM EAST OF AIKEN SOUTH CAROLINA IN THE MONTMORENCI AREA MOVING TOWARD THE SOUTHEAST AT 25 MPH. THIS STORM WILL BE MOVING INTO THE WILLISTON- BLACKVILLE AREA WITHIN THE HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, Aug 30, 3:15 PM EDT, 2 hours 30 minutes before
GAZ005-302100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 310 PM EDT THU AUG 30 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF CENTRAL AND SOUTH GEORGIA TIL 9 PM EDT... A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF CENTRAL AND SOUTH GEORGIA UNTIL 9 PM EDT INCLUDING LAMAR...MERRIWETHER...TROUP... PIKE...AND UPSON COUNTIES. AT 300 PM EDT RADAR SHOWED A BAND OF THUNDERSTORMS FROM 20 MILES SOUTH OF AUGUSTA TO JUST SOUTH OF ALBANY TO NEAR LAKE SEMINOLE. MOVEMENT WAS EAST AT 25 MPH. AT THIS TIME...NO PRECIPITATION WAS SHOWN BETWEEN ATLANTA AT THIS TIME...NO PRECIPITATION WAS SHOWN BETWEEN ATLANTA AND COLUMBUS. HOWEVER THE POTENTIAL EXISTS FOR A DAMAGING THUNDERSTORMS TO DEVELOP WITHIN THE WATCH AREA. RESIDENTS OF WEST CENTRAL GEORGIA SHOULD CONTINUE TO BE ALERT FOR RAPILDY CHANGING WEATHER CONDITIONS.
Local storm report, Aug 30, 3:27 PM EDT, 2 hours 18 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE MACON GA 327 PM EDT THU AUG 30 1990 COUNTY.....CRISP SOURCE.....CRIP COUNTY SHERIFFS DEPARTMENT TIME.......203 PM EDT LOCATION...SOUTH OF CORDELE GEORGIA ALONG HIGHWAY 90. HAIL.......DIME SIZE HAIL (3/4 INCH) WINDS......ESTIMATED SPEED AT 40 TO 50 MPH. COUNTY.....TURNER SOURCE.....IRWIN ELECTRIC MEMBERSHIP CORPORATION. TIME.......230 PM EDT LOCATION...ALL ACROSS COUNTY. DAMAGE.....NUMEROUS TREES BLOWN DOWN ACROSS POWERLINES.
Special weather statement, Aug 30, 4:16 PM EDT, 1 hour 29 minutes before
GAZ006-008-009-302300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 415 PM EDT THU AUG 30 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 709 IS NO LONGER IN EFFECT NORTHWEST OF A LINE FROM 20 EAST OF DOTHAN ALABAMA TO 35 NORTH-NORTHWEST OF SAVANNAH GEORGIA. HOWEVER THE WATCH REMAINS IN EFFECT FOR A LARGE PART OF SOUTH AND SOUTHEAST GEORGIA INCLUDING THE FOLLOWING COUNTIES OF CENTRAL GEORGIA..TURNER..BEN HILL AND IRWIN UNTI<L 9 PM EDT... AT 410 PM WEATHER RADAR IN MACON SHOWED STRONG THUNDERSTORMS ACROSS PARTS OF SOUTH GEORGIA. THE STRONGEST THUNDERSTORMS WERE LOCATED IN COLQUITT..TIFT AND BERRIEN COUNTIES. MOVEMENT WAS EAST AT 25 MPH.
Special weather statement, Aug 30, 4:39 PM EDT, 1 hour 6 minutes before
GAZ005-302200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 435 PM EDT THU AUG 30 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 709 HAS BEEN CANCELLED FOR PORTIONS OF CENTRAL AND SOUTH GEORGIA... THE SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR LAMAR... MERRIWETHER...TROUP...PIKE...AND UPSON COUNTIES. HOWEVER...THE WATCH REMAINS IN EFFECT FOR PARTS OF SOUTH AND SOUTHEAST GEORGIA UNTIL 9 PM. ALTHOUGH THE THREAT OF SEVEbRE WEATHER HAS DIMINISHED...WIDELY SCATTERED THUNDERSTORMS MAY DEVELOP OVER NORTHWEST GEORGIA TONIGHT.
Special weather statement, Aug 30, 4:43 PM EDT, 1 hour 2 minutes before
GAZ008-302245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS GA 441 PM EDT THU AUG 30 1990 AT 438 PM EDT COLUMBUS WEATHER RADAR WAS SHOWING SEVERAL STRONG THUNDERSTORMS IN RANDOLPH COUNTY GEORGIA FROM JUST NORTH OF COLEMAN TO OVER CUTHBERT TO NORTH OF SHELLMAN. THESE STORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR. PERSONS ACROSS RANDOLPH..CALHOUN..TERRELL AND DOUGHTERTY COUNTIES CAN EXPECT VERY HEAVY RAIN..DANGEROUS LIGHTNINGd AND GUSTY WINDS FOR THE NEXT COUPLE OF HOURS AS THESE STORMS MOVE SOUTHEAST. LISTEN TO NOAA WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Local storm report, Aug 30, 5:13 PM EDT, 32 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATHENS GA 511 PM EDT THU AUG 30 1990 COUNTY........ HALL SOURCE........ HALL COUNTY E.M.C. TIME.......... 505 PM EDT (2105Z) LOCATION...... NEAR GILLSVILLE (EASTERN HALL COUNTY) TYPE STORM.... SEVERE THUNDERSTORM HAIL.......... GOLF BALL SIZE DAMAGE........ NONE KNOWN INJURIES...... NONE KNOWN
Nearby
Severe Thunderstorm Warnings in South Carolina, 1990Every severe thunderstorm warning in 1990
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.