Alert archive / South Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 69, NWS Atlanta, GA

March 16, 1990McCormick County, South Carolina; Lincoln County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 16, 1990, 8:59 PM EST for McCormick County, South Carolina; Lincoln County, Georgia. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Mar 16, 1990, 8:59 PM EST (01:59 UTC)
Expired
Mar 16, 1990, 10:00 PM EST
In force
61 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Lincoln County, GA, McCormick 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

Athens Municipal, GA (KAHN), launched 00:00Z, 2.0 hours before the alert went out and 86 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.

Skew-T log-pSkew-T log-p diagram, Athens Municipal, GA at 00:00Z on 1990-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 60 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Athens Municipal, GA at 00:00Z on 1990-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 428 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
60 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
953 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
428 m²/s²
0-3 km storm-relative helicity
525 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KAGS 170200
SVRAGS
GAC181-SCC065-170300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUGUSTA GA
859 PM EST FRI MAR 16 1990
 
THE NATIONAL WEATHER SERVICE IN AUGUSTA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST GEORGIA
 
   ...SOUTHERN LINCOLN COUNTY
 
 
IN WEST CENTRAL SOUTH CAROLINA
 
   ...SOUTHERN MCCORMICK COUNTY
 
AT 855 PM EST NATIONAL WEATHER SERVICE RADAR WAS DETECTING A STRONG
THUNDERSTORM OVER SOUTHERN LINCOLN COUNTY IN GEORGIA NEAR THURMOND
LAKE. THIS STORM WAS MOVING EAST AT NEAR 50 MPH. BOATERS ON THURMOND
LAKE SHOULD GET TO SHORE IMMEDIATELY.
 
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 EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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 16, 6:39 PM EST, 2 hours 20 minutes before
GAZ002-004-161730-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
635 PM EST FRI MAR 16 1990

A LINE OF STRONG THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUED
TO MOVE ACROSS NORTH GEORGIA. AT 625 PM EST THE LINE EXTENDED FROM NEAR
DAWSONVILLE TO GRIFFIN AND WAS MOVING EAST AT 35 MILES AN HOUR.
PERSONS THROUGHOUT NORTHEAST GEORGIA SHOULD KEEP ALERT TO THE
POSSIBILITY OF DANGEROUS LIGHTNING...STRONG GUSTY WINDS AND POSSIBLE
HAIL AS THESE STORMS MOVE THROUGH DURING THE NEXT COUPLE OF HOURS.

ELSEWHERE RAIN AND SCATTERED THUNDERSTORMS WERE INDICATED FROM
ALABAMA...ACROSS GEORGIA...INTO EAST TENNESSEE AND THE WESTERN
CAROLINAS.

MOVEMENT WAS NORTHEAST AT 45 MILES AN HOUR.
Special weather statement, Mar 16, 7:26 PM EST, 1 hour 33 minutes before
GAZ002-004-161730-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
725 PM EST FRI MAR 16 1990

A LINE OF STRONG THUNDERSTORMS WAS INDICATED ACROSS NORTH GEORGIA FROM
NEAR GAINESVILLE...ACROSS WINDER AND MADISON TO EATONTON. THE LINE WAS
MOVING EAST AT 50 MILES AN HOUR. PERSONS THROUGHOUT NORTHEAST GEORGIA
GEORGIA SHOULD KEEP ALERT AS THIS LINE MOVES THROUGH THE AREA DURING THE
NEXT COUPLE OF HOURS. STORMS OF THIS INTENSITY PRODUCE VERY HEAVY
RAINFALL...DEADLY LIGHTNING...STRONG GUSTY WINDS AND POSSIBLE HAIL...SO
KEEP ALERT AND SEEK SHELTERS INDOORS.

ELSEWHERE RAIN AND SCATTERED SHOWERS WERE INDICATED FROM CENTRAL
ALABAMA...ACROSS GEORGIA...INTO SOUTHEAST TENN5ESSEE AND THE WESTERN
CAROLINAS.

MOVEMENT WAS EAST AT 50 MILES AN HOUR.
Local storm report, Mar 16, 7:47 PM EST, 1 hour 12 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA GA
745 PM EST FRI MAR 16 1990

630 PM EST.....ROCKDALE COUNTY EMERGENCY SERVICES 911 REPORTED
               TORNADO SIGHTING. THEY REPORT NUMEROUS TREES AND
               POWER LINES DOWN WITH DAMAGE TO AN ESTIMATED
               200 TO 400 HOMES...MAINLY FROM FALLING TREES.
               SOME ROADS CLOSED. NO INJURIES REPORTED SO FAR.
               DAMAGE OCCURRED SOUTH OF INTERSTATE 20 IN THE
               VICINITY OF GEORGIA HIGHWAY 20 AND HONEY CREEK
               ROAD. POWER OUT ACROSS MOST OF THE SOUTHERN PART
               OF THE COUNTY.

DELAYED REPORT....WXIA-TV REPORTS NUMEROUS TREES DOWN IN HENRY
                  COUNTY \AROUND MC DONOUGH. TIME OF OCCURRENCE
                  APPARENTLY AROUND 630 PM EST.
Special weather statement, Mar 16, 8:33 PM EST, 26 minutes before
GAZ005-008-011-170230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
832 PM EST FRI MAR 16 1990

...TORNADO WATCH NUMBER 89 WILL EXPIRE AT 9 PM EST BUT CONTINUES FOR
PORTIONS OF WEST CENTRAL AND SOUTHWEST GEORGIA UNTIL THEN...

...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR A LARFE PORTION TO WEST
CENTRAL GEORGIA TONIGHT AND SATURDAY..

AT 825 PM EST COLUMBUS WEATHER WAS SHOWING A LARGE AREA OF LIGHT TO
MODERATE RAIN WITH A FEW THUNDERSHOWERS OCCURRING FROM MILLEDGEVILLE
AND CARTERSVILLE GEORGIA SOUTHWEST TO GREENVILLE AND SAMSON ALABAMA.
THE STRONGEST STORMS WERE IN BARBOUR COUNTY ALABAMA.
THIS WHOLE AREA HAS MOVED LITTLE IN THE PAST HOUR.

SOME SPECTACULAR LIGHTNING AND THUNDER REMAINS IN THIS AREA OF RAIN.
MOST FLOOD PRONE AREAS ARE FLOODED TONIGHT. MOTORISTS ARE ADVISED TO
TRAVEL WITH CAUTION SINCE THE ROADS ARE SLICK AND FLOODED IN SOME
AREAS. PERSONS LIVING NEAR CREEKS AND STREAMS SHOULD REMAIN ALERT
TO POSSIBLE FLOODING. LISTEN TO NOAA WEATHER RADIO OR OTHER NEWS MEDIA
FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Local storm report, Mar 16, 8:44 PM EST, 15 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATHENS GA
845 PM EST FRI MAR 16 1900

COUNTY........ CLARKE

SOURCE........ GA POWER

TIME.......... APPROX 805 PM EST

LOCATION...... WESTLAKE DRIVE

TYPE STORM.... SEVERE THUNDERSTORM/TORNADO

HAIL..........

DAMAGE........ UTILITY POWER POLE "SNAPPED-INTO"--ALSO OTHER TREES DOWN
               AND POWER OUT.
INJURIES...... NONE AT THIS TIME
Local storm report, Mar 16, 8:52 PM EST, 7 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATHENS GA
850 PM EST FRI MAR 16 1900

COUNTY........ NEWTON

SOURCE........ COVINGTON SHERIFFS DEPT

TIME.......... APPROX 750 PM EST

LOCATION...... COUNTY WIDE

TYPE STORM.... SEVERE THUNDERSTORM/TORNADO

HAIL..........

DAMAGE........ POWER OUT TO OVER HALF THE COUNTY...NUMEROUS TREES DOWN..
               AT ONE POINT "OVER A MILE OF CONTINOUS TREES ACROSS ROAD"
INJURIES...... NONE AT THIS TIME

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 16, 8:34 PM ESTSevere Thunderstorm WarningFFCMcCormick41 min
Mar 16, 7:06 PM ESTTornado WarningFFCMorgan, Oconee69 min
Mar 16, 7:18 PM ESTSevere Thunderstorm WarningFFCGreene, Oconee, Oglethorpe57 min
Mar 16, 7:18 PM ESTSevere Thunderstorm WarningFFCClarke, Jackson, Madison57 min
Mar 16, 7:18 PM ESTSevere Thunderstorm WarningFFCBanks, Franklin57 min
Mar 16, 7:40 PM ESTTornado WarningFFCClarke, Madison, Oglethorpe35 min
Mar 16, 7:53 PM ESTSevere Thunderstorm WarningFFCElbert, Hart67 min
Mar 16, 7:59 PM ESTSevere Thunderstorm WarningFFCWilkes61 min
Mar 16, 9:44 PM ESTSevere Thunderstorm WarningFFCCrawford, Monroe, Peach61 min
Mar 16, 9:44 PM ESTSevere Thunderstorm WarningFFCJasper61 min
Mar 16, 9:52 PM ESTFlash Flood WarningFFCPolk8 hr
Mar 16, 9:57 PM ESTFlash Flood WarningFFCCobb, Douglas, Fulton5 hr
Mar 16, 9:57 PM ESTFlash Flood WarningFFCDeKalb5 hr
Mar 16, 10:03 PM ESTSevere Thunderstorm WarningFFCBibb, Jones57 min
Mar 17, 12:30 AM ESTFlash Flood WarningFFCDeKalb, Fulton6 hr
Mar 17, 12:30 AM ESTFlash Flood WarningFFCCobb, Douglas6 hr
Mar 17, 1:59 AM ESTFlash Flood WarningFFCHenry, Rockdale4 hr
Mar 17, 1:59 AM ESTFlash Flood WarningFFCClayton, Fayette, Spalding4 hr
Mar 17, 1:59 AM ESTFlash Flood WarningFFCLamar, Pike, Upson4 hr
Mar 17, 1:59 AM ESTFlash Flood WarningFFCButts4 hr
Mar 17, 2:26 AM ESTSevere Thunderstorm WarningFFCCrawford, Monroe64 min
Mar 17, 5:45 AM ESTFlash Flood WarningFFCCobb, Douglas, Fulton6 hr
Mar 17, 5:45 AM ESTFlash Flood WarningFFCDeKalb6 hr
Mar 17, 6:08 AM ESTFlash Flood WarningFFCButts, Clayton, Fayette, Henry, Lamar, Pike and 1 more4 hr
Mar 17, 6:08 AM ESTFlash Flood WarningFFCUpson4 hr
Mar 17, 6:08 AM ESTFlash Flood WarningFFCRockdale4 hr
Mar 17, 6:37 AM ESTFlash Flood WarningFFCFannin5 hr
Mar 17, 7:21 AM ESTFlash Flood WarningFFCWhite3 hr
Mar 17, 7:35 AM ESTFlash Flood WarningFFCJasper, Jones, Monroe3 hr
Mar 17, 10:54 AM ESTFlash Flood WarningFFCJones, Monroe3 hr

Nearby

Severe Thunderstorm Warnings in South Carolina, 1990Severe Thunderstorm Warnings in Georgia, 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.