Alert archive / Georgia / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 74, NWS Atlanta, GA

April 9, 1991DeKalb County, Fulton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 9, 1991, 8:06 PM EDT for DeKalb County, Fulton County, Georgia. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
Apr 9, 1991, 8:06 PM EDT (00:06 UTC)
Expired
Apr 9, 1991, 8:45 PM EDT
In force
39 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties DeKalb County, GA, Fulton County, GA

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 00:00Z, 0.1 hours before the alert went out and 98 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 1991-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1678 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Athens Municipal, GA at 00:00Z on 1991-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.193958Sfc1 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
1678 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
959 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 100007
SVRATL
GAC089-121-100045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA  GA
806 PM EDT TUE APR 9 1991
 
THE NATIONAL WEATHER SERVICE IN ATLANTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...DEKALB COUNTY...NORTHERN FULTON COUNTY
 
NATIONAL WEATHER RADAR SHOWS A SEVERE THUNDERSTORM ACROSS THE NORTHERN
PORTIONS OF THE ATLANTA METRO AREA INCLUDING THE DOWNTOWN AREA.
PING-PONG BALL SIZE HAIL HAS BEEN REPORTED WITH THIS STORM IN THE
BUCKHEAD AREA OF ATLANTA.
 
THIS STORM IS MOVING EAST AT 30 MPH...AND SHOULD MOVE INTO DEKALB
COUNTY.
 
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.p

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, Apr 9, 5:21 PM EDT, 2 hours 45 minutes before
GAZ005-ALZ012-ALZ018-092315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
518 PM EDT TUE APR 9 1991

...THUNDERSTORMS OVER WEST CENTRAL GEORGIA AND EAST CENTRAL ALABAMA...

AT 515 PM EDT WEATHER RADAR INDICATED SCATTERED THUNDERSTORMS OVER WESCENTRAL GEORGIA AND EAST CENTRAL ALABAMA. MOST OF THE THUNDERSTORMS
WERE JUST SOUTH AND WEST OF COLUMBUS...ALSO IN RUSSELL AND BARBOUR
COUNTIES IN EAST CENTRAL ALABAMA. THE STORMS WERE MOVING NORTHEAST AT
30 MILES AN HOUR.

PEOPLE IN WEST CENTRAL GEORGIA AND EAST CENTRAL ALABAMA SHOULD BE
ALERT FOR THREATENING WEATHER FOR THE NEXT FEW HOURS. SOME OF THESE
THUNDERSTORMS WILL LIKELY CONTAIN DANGEROUS LIGHTNING..STRONG GUSTY
WINDS AND SMALL HAIL.

PLEASE CONTINUE TO LISTEN TO NOAA WEATHER RADIO OR OTHER LOCAL
NEW MEDIA FOR LATER STATEMENTS OR WARNING IF NEEDED.
Local storm report, Apr 9, 5:26 PM EDT, 2 hours 40 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATHENS GA
525 PM EDT TUE APR 9 1991

COUNTY........JACKSON

SOURCE........JACKSON COUNTY EMA

TIME..........522 PM EDT

LOCATION......CITY OF JEFFERSON

TYPE STORM....SEVERE THUNDERSTORM

HAIL..........MARBLE SIZE

DAMAGE........NONE REPORTED YET

INJURIES......NONE
Special weather statement, Apr 9, 5:26 PM EDT, 2 hours 40 minutes before
GAZ005-ALZ012-ALZ018-092315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
518 PM EDT TUE APR 9 1991

...THUNDERSTORMS OVER WEST CENTRAL GEORGIA AND EAST CENTRAL ALABAMA...

AT 515 PM EDT WEATHER RADAR INDICATED SCATTERED THUNDERSTORMS OVER WESCENTRAL GEORGIA AND EAST CENTRAL ALABAMA. MOST OF THE THUNDERSTORMS
WERE JUST SOUTH AND WEST OF COLUMBUS...ALSO IN RUSSELL AND BARBOUR
COUNTIES IN EAST CENTRAL ALABAMA. THE STORMS WERE MOVING NORTHEAST AT
30 MILES AN HOUR.

PEOPLE IN WEST CENTRAL GEORGIA AND EAST CENTRAL ALABAMA SHOULD BE
ALERT FOR THREATENING WEATHER FOR THE NEXT FEW HOURS. SOME OF THESE
THUNDERSTORMS WILL LIKELY CONTAIN DANGEROUS LIGHTNING..STRONG GUSTY
WINDS AND SMALL HAIL.

PLEASE CONTINUE TO LISTEN TO NOAA WEATHER RADIO OR OTHER LOCAL
NEW MEDIA FOR LATER STATEMENTS OR WARNING IF NEEDED.
Special weather statement, Apr 9, 5:46 PM EDT, 2 hours 20 minutes before
GAZ001>003-080000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GEORGIA
545 PM EDT MON APR 9 1991

...STRONG THUNDERSTORMS CONTINUE TO MOVE ACROSS THE ATLANTA
METROPOLITAN AREA AND NORTHWEST GEORGIA...

A CLUSTER OF STRONG THUNDERSTORMS CONTINUES TO MOVE ACROSS THE ATLANTA
METROPOLITAN AREA.  AT 540 PM...NATIONAL WEATHER SERVICE RADAR SHOWED
THE STRONGEST STORMS IN DEKALB..GWINNETT AND NORTH FULTON COUNTIES.
NUMEROUS REPORTS OF PEA TO MARBLE SIZE HAIL HAS BEEN REPORTED ACROSS THE
METRO AREA.  ALSO DANGEROUS LIGHTNING HAS BEEN REPORTED WITH THESE STORMS.

OTHER STRONG THUNDERSTORMS WERE LOCATED IN HARALSON COUNTY..SOUTHERN PARTS OF
TROUP AND MERIWETHER COUNTIES AND NEAR DAWSONVILLE IN NORTHWEST GEORGIA.

PEOPLE IN NORTHWEST GEORGIA...ESPECIALLY AROUND ATLANTA SHOULD BE ALERT
FOR THREATENING WEATHER CONDITIONS AND BE PREPARED TO TAKE SHELTER IF
CONDITIONS WARRENT.
Special weather statement, Apr 9, 7:17 PM EDT, 49 minutes before
GAZ006-008-009-100000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MACON GA
715 PM EDT TUE APR 9 1991

AT 710 PM RADAR IN MACON SHOWED AN AREA OF THUNDERSTORMS WEST OF
MACON FROM FORSYTH SOUTH TO FORT VALLEY AND MARSHALLVILLE. THEY
WERE MOVING EAST INTO CENTRAL GEORGIA AT 30 MPH.

THESE THUNDERSTORMS WILL PRODUCE BRIEF HEAVY RAIN...STRONG GUSTY
WINDS...DANGEROUS LIGHTNING...AND POSSIBLY SMALL HAIL.
Local storm report, Apr 9, 7:17 PM EDT, 49 minutes before
LOCAL STORM REPORT...COR...
NATIONAL WEATHER SERVICE ATHENS GA
525 PM EDT TUE APR 9 1991

COUNTY........JACKSON

SOURCE........JACKSON COUNTY EMA

TIME..........522 PM EDT

LOCATION......CITY OF JEFFERSON

TYPE STORM....THUNDERSTORM

HAIL..........MARBLE SIZE

DAMAGE........SCATTERED POWER OUTAGES NEAR JEFFERSON

INJURIES......NONE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 8:12 PM EDTSevere Thunderstorm WarningFFCGreene, Morgan63 min
Apr 9, 8:50 PM EDTSevere Thunderstorm WarningFFCRockdale40 min
Apr 9, 8:57 PM EDTSevere Thunderstorm WarningFFCWalton63 min
Apr 9, 10:14 PM EDTSevere Thunderstorm WarningFFCCrawford46 min
Apr 9, 10:15 PM EDTSevere Thunderstorm WarningFFCForsyth30 min
Apr 9, 10:21 PM EDTSevere Thunderstorm WarningFFCNewton69 min
Apr 9, 10:39 PM EDTSevere Thunderstorm WarningFFCBibb66 min
Apr 9, 11:00 PM EDTSevere Thunderstorm WarningFFCBarrow, Oconee, Walton60 min
Apr 9, 11:00 PM EDTSevere Thunderstorm WarningFFCHall60 min
Apr 9, 11:06 PM EDTSevere Thunderstorm WarningFFCBaldwin, Wilkinson69 min
Apr 9, 11:35 PM EDTSevere Thunderstorm WarningFFCHancock, Washington40 min
Apr 10, 12:12 AM EDTSevere Thunderstorm WarningFFCGlascock, Jefferson, Warren48 min
Apr 10, 12:48 AM EDTSevere Thunderstorm WarningFFCColumbia, Richmond42 min
Apr 10, 1:01 AM EDTSevere Thunderstorm WarningFFCLincoln44 min

Nearby

Severe Thunderstorm Warnings in Georgia, 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.