Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 210, NWS Atlanta, GA

July 1, 1990Fannin County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 1, 1990, 4:29 PM EDT for Fannin County, Georgia. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Jul 1, 1990, 4:29 PM EDT (20:29 UTC)
Expired
Jul 1, 1990, 5:15 PM EDT
In force
46 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Fannin County, GA

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 12:00Z, 8.5 hours before the alert went out and 138 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 12:00Z on 1990-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 914 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 12:00Z on 1990-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
914 J/kg
Mixed-layer CIN
-155 J/kg
Mixed-layer LCL
1350 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
13 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 KATL 012032
SVRATL
GAC111-012115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA  GA
429 PM EDT SUN JUL 1 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...NORTHEASTERN FANNIN COUNTY
 
A THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS WAS LOCATED BY
WEATHER SERVICE RADAR JUST EAST OF DUCKTOWN TENNEESSEE MOVING TO THE
SOUTHEAST AT 25 MPH. THIS WILL BRING THE THUNDERSTORM INTO NORTHEAST
FANNIN COUNTY EAST OF BLUE RIDGE LAKE.
 
 
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, Jul 1, 3:24 PM EDT, 1 hour 5 minutes before
GAZ001>004-012100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA  GA
325 PM EDT SUN JUL 01 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHERN
GEORGIA UNTIL 10 PM EDT...

AT 315 PM...RADAR SHOWED AN AREA OF STRONG THUNDERSTORMS FROM THE
WESTERN CAROLINAS INTO EASTERN TENNESSEE. MOVEMENT WAS SOUTHEAST
AT 20 MPH. AT THEIR PRESENT SPEED...THE STORMS WILL REACH THE EXTREME
NORTHERN SECTIONS OF GEORGIA BY 4 PM.

ELSEWHERE...SHOWERS AND THUNDERSHOWERS HAD ALSO DEVELOPED IN EASTERN
ALABAMA MOVING SOUTHEAST AT 20 MPH.

PERSONS THROUGHOUT NORTH GEORGIA SHOULD REMAIN ALERT THIS AFTERNOON
AND EVENING FOR DARKENING SKIES AND RAPIDLY CHANGING WEATHER CONDITIONS.
THESE STORMS WILL PRODUCE VERY HEAVY RAIN REDUCING VISIBILITIES TO NEAR
ZERO...STRONG WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING...AND
POSSIBLY HAIL. LARGE HAIL HAS ALREADY BEEN REPORTED IN SOME OF THE
STRONGER STORMS IN EAST CENTRAL TENNESSE EARLIER THBIS AFTERNOON.

STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL TV AND RADIO STATIONS FOR
FURTHER UPDATES AND POSSIBLE WARNINGS.
Special weather statement, Jul 1, 3:31 PM EDT, 58 minutes before
GAZ002-004-012045-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
340 PM EDT SUN JUL 1 1990

...SEVERE THUNDERSTORM WARNING IN EFFECT FOR ALL COUNTIES OF NORTHEAST
GEORGIA UNTIL 10 PM EDT...

THUNDERSTORMS SOME WHICH ARE LIKELY TO BECOME SEVERE
REACH FROM THE NORTHWESTERN PART OF SOUTH CAROLINA THROUGH
SOUTHERN NORTH CAROLINA AND INTO EASTERN TENNESSEE.

AT 325 PM THE LARGER STORMS WERE SOUTHWEST OF CHARLOTTE PNORTH
CAROLINA, NORTH OF GREENVILLE SOUTH CAROLINA, AND NEAR  TELLICO PLAINS
IN SOUTHEAST TENNESSEE.

MOVEMENT WAS TO THE SOUTHEAST AT 25 MPH.
Special weather statement, Jul 1, 3:35 PM EDT, 54 minutes before
GAZ002-004-012045-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...COR...
NATIONAL WEATHER SERVICE ATHENS GA
340 PM EDT SUN JUL 1 1990

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR ALL COUNTIES OF NORTHEAST
GEORGIA UNTIL 10 PM EDT...

THUNDERSTORMS SOME WHICH ARE LIKELY TO BECOME SEVERE
REACH FROM THE NORTHWESTERN PART OF SOUTH CAROLINA THROUGH
SOUTHERN NORTH CAROLINA AND INTO EASTERN TENNESSEE.

AT 325 PM THE LARGER STORMS WERE SOUTHWEST OF CHASRLOTTE NORTH
CAROLINA, NORTH OF GREENVILLE SOUTH CAROLINA, AND NEAR  TELLICO PLAINS
IN SOUTHEAST TENNESSEE.

MOVEMENT WAS TO THE SOUTHEAST AT 25 MPH.
Special weather statement, Jul 1, 4:20 PM EDT, 9 minutes before
GAZ001>003-012200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA  GA
420 PM EDT SUN JUL 01 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHERN
GEORGIA UNTIL 10 PM EDT...

AT 415 PM...RADAR SHOWED AN AREA OF STRONG THUNDERSTORMS FROM THE
WESTERN CAROLINAS INTO EASTERN TENNESSEE. MOVEMENT WAS SOUTHEAST
AT 25 MPH. AT THEIR PRESENT SPEED...THE STORMS WILL REACH THE NORTHEAST
GEORGIA MOUNTAINS BEFORE 5 PM EDT...PRIMARILY EAST OF BLUE RIDGE LAKE.

ELSEWHERE...SHOWERS AND THUNDERSHOWERS WERE ALSO IN TENNESSEE NORTHWEST
OF CHATTANOOGA. THEY WILL BE MOVING INTO NORTHWEST GEORGIA BEFORE 5 PM.

PERSONS THROUGHOUT NORTH GEORGIA SHOULD REMAIN ALERT THIS AFTERNOON
AND EVENING FOR DARKENING SKIES AND RAPIDLY CHANGING WEATHER CONDITIONS.
THESE STORMS WILL PRODUCE VERY HEAVY RAIN REDUCING VISIBILITIES TO NEAR
ZERO...STRONG WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING...AND
POSSIBLY HAIL. LARGE HAIL HAS ALREADY BEEN REPORTED IN SOME OF THE
STRONGER STORMS IN EAST CENTRAL TENNESSE EARLIER THIS AFTERNOON.

STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL TV AND RADIO STATIONS FOR
FURTHER UPDATES AND POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 4:45 PM EDTSevere Thunderstorm WarningFFCUnion60 min
Jul 1, 5:30 PM EDTSevere Thunderstorm WarningFFCFannin30 min

Nearby

Severe 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.