Alert archive / Georgia / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 92, NWS Atlanta, GA

April 19, 1991Hall County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 19, 1991, 2:10 PM EDT for Hall County, Georgia. It was in force for 65 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 19, 1991, 2:10 PM EDT (18:10 UTC)
Expired: Apr 19, 1991, 3:15 PM EDT
In force: 65 min
Issued by: NWS Atlanta, GA
Area: Whole counties

County Hall County, GA

What was reported inside it

Time	Report	Where	Remark
Apr 19, 2:42 PM EDT	Thunderstorm Wind 0	Hall, GA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 6.2 hours before the alert went out and 63 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 803 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAHN 191810
SVRAHN
GAC139-191915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATHENS GA
210 PM EDT FRI APR 19 1991
 
THE NATIONAL WEATHER SERVICE IN ATHENS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST GEORGIA
 
   ...HALL COUNTY
 
AT 210 PM EDT THE ATHENS RADAR INDICATED A SEVERE THUNDERSTORM JUST
ENTERING NORTHWEST HALL COUNTY. THE STORM WAS LOCATED JUST NORTH OF
LAKE LANIER AND WAS MOVING SOUTHEAST AT 30 MILES AN HOUR. PERSONS
IN AND AROUND THE GAINESVILLE AREA SHOULD BE PREPARED FOR TO RESPOND
QUICKLY IF THREATING WEATHER APPROACHES.
 
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 WATE'R 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, Apr 19, 11:49 AM EDT, 2 hours 21 minutes before

GAZ003-005-191700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA  GA
1145 AM EDT FRI APR 19 1991

AT 1145 AM EDT...NATIONAL WEATHER SERVICE RADAR IN ATLANTA WAS SHOWING
A LINE OF STRONG THUNDERSTORMS LOCATED FROM NEAR LAKE HIWASSE IN NORTH
CAROLINA SOUTH TO NEAR DALTON.  SOME OF THE STRONGEST THUNDERSTORMS WILL
BE MOVING INTO FANNIN AND GILMER COUNTIES DURING THE NEXT HOUR.

THE THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR AND WILL PASS JUST
NORTH OF THE CITY OF ELLIJAY AND INTO THE NOTTELY LAKE AREA OF GILMER AND
FANNIN COUNTIES.

PEOPLE IN THESE NORTH GEORGIA COUNTIES CAN EXPECT BRIEF PERIODS OF HEAVY
RAINS..DANGEROUS LIGHTNING..STRONG GUSTY WINDS AND SOME SMALL HAIL A+S
THESE STORMS MOVE THROUGH THE AREA.

Local storm report, Apr 19, 12:49 PM EDT, 1 hour 21 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA GA
1249 PM EDT FRI APR 19 1991

THE FANNIN COUNTY SHERIFFS OFFICE REPORTED B-B SIZE HAIL MIXED IN RAIN
AT BLUE RIDGE AT 1243 PM. AT 1230 PM, A DEPUTY REPORTED HAIL OF
UNSPECIFIED SIZE IN A STORM IN NORTH GILMER COUNTY.

Special weather statement, Apr 19, 1:13 PM EDT, 57 minutes before

GAZ002-191915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
112 PM EDT FRI APR 19 1991

...THUNDERSTORMS HAVE MOVED INTO NORTHEAST GEORGIA...

AT 110 PM EDT THE ATHENS RADAR INDICATED A THUNDERSTORM WITH
VERY HEAVY RAINFALL NEAR BLAIRSVILLE IN UNION COUNTY. THE STORM
WAS MOVING EAST AT 30 MILES AN HOUR.

PERSONS THROUGHOUT NORTHEAST GEORGIA SHOULD REMAIN ALERT TO
APPROACHING THUNDERSTORMS FOR THE RAMAINDER OF THIS AFTERNOON AND
EARLY EVENING HOURS.

THUNDERSTORMS OF THIS INTENSITY OFTEN PRODUCE STRONG GUSTY WINDS...
DEADLY LIGHTNING...VERY HEAVY RAINFALL AND POSSIBLY SOME SMALL HAIL.

IF THUNDERSTORMS APPROACH...YOU SHOULD SEEK SHELTER INDOORS UNTIL
THE STORM HAS PASSED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 12:33 PM EDT	Severe Thunderstorm Warning	FFC	Fannin, Gilmer	27 min
Apr 19, 1:11 PM EDT	Severe Thunderstorm Warning	FFC	Floyd	38 min
Apr 19, 3:03 PM EDT	Severe Thunderstorm Warning	FFC	Paulding	42 min
Apr 19, 3:46 PM EDT	Severe Thunderstorm Warning	FFC	Madison	59 min
Apr 19, 3:51 PM EDT	Severe Thunderstorm Warning	FFC	Coweta	39 min
Apr 19, 4:00 PM EDT	Severe Thunderstorm Warning	FFC	Heard	40 min
Apr 19, 4:33 PM EDT	Severe Thunderstorm Warning	FFC	Polk	27 min
Apr 19, 4:45 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	30 min
Apr 19, 4:52 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, Fayette, Henry	68 min
Apr 19, 5:11 PM EDT	Severe Thunderstorm Warning	FFC	Morgan, Newton	64 min
Apr 19, 5:28 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	32 min
Apr 19, 5:33 PM EDT	Severe Thunderstorm Warning	FFC	Twiggs	57 min
Apr 19, 5:52 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	38 min
Apr 19, 6:10 PM EDT	Severe Thunderstorm Warning	FFC	Columbia, Richmond	65 min
Apr 19, 6:12 PM EDT	Severe Thunderstorm Warning	FFC	Morgan, Newton, Walton	63 min
Apr 19, 6:46 PM EDT	Severe Thunderstorm Warning	FFC	Burke	44 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1991 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.