Alert archive / Georgia / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 221, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 20, 1993, 6:21 PM EDT for Fannin County, Gilmer County, Murray County, Georgia. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Aug 20, 1993, 6:21 PM EDT (22:21 UTC)
- Expired
- Aug 20, 1993, 7:30 PM EDT
- In force
- 69 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Fannin County, GA, Gilmer County, GA, Murray County, GA
The nearest sounding before it
Athens Municipal, GA (KAHN), launched 12:00Z, 10.4 hours before the alert went out and 144 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
- 1126 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 831 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 202221 SVRATL GAC111-123-213-202330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 621 PM EDT FRI AUG 20 1993 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...FANNIN COUNTY...NORTHERN GILMER COUNTY...MURRAY COUNTY AT 620 PM EDT RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS ON THE TENNESSEE STATE LINE NORTH OF CHATSWORTH AND BLUE RIDGE. THIS LINE WAS MOVING SOUTH AT 15 TO 20 MPH. 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, Aug 20, 5:30 PM EDT, 51 minutes before
GAZ001>GAZ003-202300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 530 PM EDT WED AUG 18 1993 AT 525 PM EDT WEATHER SERVICE RADARS SHOWED WIDELY SCATTERED THUNDER- STORMS WERE DEVELOPING OVER PARTS OF NORTHERN GEORGIA. THE STRONGEST THUNDERSTORM WAS OCCURRING OVER THE NORTHWESTERN PORTION OF CHATTOOGA COUNTY NEAR CLOUDLAND. THESE STORMS WERE MOVING SOUTHEAST AT NEAR 20 MILES AN HOUR. NORTHWEST GEORGIA'S THUNDERSTORMS HAVE DEVELOPED AHEAD OF A LARGER AREA OF SHOWERS AND THUNDERSTORMS THAT STRETCHED FROM NORTH CAROLINA WEST ACROSS TENNESSEE. ANOTHER AREA OF THUNDERSTORMS HAD ALSO DEVELOPED OVER NORTHERN ALABAMA. MOVEMENT ON ALL OF THESE STORMS WAS TO THE SOUTHEAST. WITH THE AFTERNOON HEAT AS FUEL...ADDITIONAL THUNDERSTORMS MAY DEVELOP ACROSS NORTH GEORGIA DURING THE REMAINDER OF DAY AND THIS EVENING. RESIDENTS OF NORTH GEORGIA SHOULD REMAIN ALERT. BE PREPARED TO QUICKLY SEEK SHELTER IF STORMS DEVELOP OR MOVE INTO YBOUR AREA.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 5:19 PM EDT | Severe Thunderstorm Warning | FFC | Chattooga | 26 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1993Every severe thunderstorm warning in 1993
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.