Alert archive / Georgia / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 337, NWS Atlanta, GA

September 21, 1996Washington County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 21, 1996, 7:26 PM EDT for Washington County, Georgia. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 21, 1996, 7:26 PM EDT (23:26 UTC)
Expired
Sep 21, 1996, 8:00 PM EDT
In force
34 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Washington County, GA

The radar

The Robins AFB radar (KJGX), 61 km from the middle of the area, began a volume at 23:25 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.4 hours before the alert went out and 165 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, Peachtre/Fal Fld, GA at 12:00Z on 1996-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Peachtre/Fal Fld, GA at 12:00Z on 1996-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1090 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
179 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 212326
SVRATL
GAC303-220000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
726 PM EDT SAT SEP 21 1996
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL GEORGIA
 
   ...WASHINGTON COUNTY
 
AT 724 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM IN NORTH WASHINGTON COUNTY NEAR HAMBURG STATE PARK MOVING
EAST AT 20 MPH.
 
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.

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, Sep 21, 4:09 PM EDT, 3 hours 17 minutes before
GAZ008-009-014>016-022>025-027-034>039-045>051-054>062-067>076-078>
086-091>098-103>113-220400-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
410 PM EDT SAT SEP 21 1996

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
NORTHEAST AND CENTRAL GEORGIA THIS EVENING.

A STRONG UPPER LEVEL DISTURBANCE OVER THE TENNESSEE VALLEY IS
ASSOCIATED WITH A COLD FRONT ALREADY IN NORTHWEST GEORGIA LATE THIS
AFTERNOON. THE FRONT WILL PUSH THROUGH NORTHEAST AND CENTRAL GEORGIA
DURING THE REMAINDER OF THIS AFTERNOON AND THIS EVENING. INSTABILITY
AHEAD OF THE FRONT IS JUST MARGINAL BUT MOIST INFLOW INTO THE
BOUNDARY COULD SUPPORT SEVERE THUNDERSTORMlS THROUGH THE EVENING
HOURS. THE MAIN THREAT WILL BE DAMAGING WINDS.

SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL IN NORTHEAST AND
CENTRAL GEORGIA SHOULD MONITOR WEATHER DEVELOPMENTS. ACTIVATION THIS
EVENING MAY BECOME NECESSARY.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 4:12 PM EDTSevere Thunderstorm WarningFFCHarris48 min
Sep 21, 6:42 PM EDTSevere Thunderstorm WarningFFCBaldwin, Hancock33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.