Alert archive / Georgia / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 153, NWS Atlanta, GA

July 22, 1992Bibb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 22, 1992, 6:54 PM EDT for Bibb County, Georgia. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jul 22, 1992, 6:54 PM EDT (22:54 UTC)
Expired
Jul 22, 1992, 8:00 PM EDT
In force
66 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Bibb County, GA

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 10.9 hours before the alert went out and 132 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 1992-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1198 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 12:00Z on 1992-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
1198 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
731 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
44 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 KMCN 222255
SVRMCN
GAC021-230000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MACON GA
654 PM EDT WED JUL 22 1992
 
THE NATIONAL WEATHER SERVICE IN MACON GA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL GEORGIA
 
   ...BIBB COUNTY
 
AT 655 PM A SEVERE THUNDERSTRM WAS NEAR MACN MVING NRTHEAST
AT 15 MPH.
 
 
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 22, 2:57 PM EDT, 3 hours 57 minutes before
GAZ003-222000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA  GA
300 PM EDT WED JUL 22 1992

AT 255 PM EDT WEATHER SERVICE RADAR INDICATED A THUNDERSTORM WITH VERY
HEAVY RAIN OVER DOWNTOWN ATLANTA NORTHWARD TOWARD SANDY SPRINGS IN
NORTH FULTON COUNTY. THIS THUNDERSTORM SHOWED ONLY A SLOW EASTWARD
DRIFT WHICH WILL TAKE IT TOWARD WESTERN DEKALB COUNTY.

WITH THE SLOW MOVEMENT AND HEAVY RAIN...FLOODING OF STREETS AND
INTERSECTIONS...XESPECIALLY THE DOWNTOWN CONNECTOR AND OTHER INTERSTATE
HIGHWAYS NORTH OF ATLANTA IS LIKELY.
Special weather statement, Jul 22, 4:30 PM EDT, 2 hours 24 minutes before
GAZ003-222200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA  GA
420 PM EDT WED JUL 22 1992

AT 415 PM EDT WEATHER SERVICE RADAR INDICATED SCATTERED THUNDERSTORMS
OVER NORTHWEST GEORGIA. STRONGEST STORMS WERE NEAR DOUGLASVILLE...WEST
OF MARIETTA AND BETWEEN GRIFFIN AND MCDONOUGH. STORMS WERE MOVING
NORTHEAST AT 10 MILES AN HOUR. ADDITIONAL STORMS COULD DEVELOP IN THE
AREA THROUGH THE EARLY EVENING HOURS.

FREQUENT LIGHTNING AND GUSTY WINDS WILL ACCOMPANY THE STRONGEST STORMS.
DUE TO THE SLOW MOVEMENT AND HEAVY DOWNPOURS...LOCAL STREET AND HIGHWAY
FLOODING IS ALSO POSSIBLE.
Special weather statement, Jul 22, 6:16 PM EDT, 38 minutes before
GAZ006-008-009-222315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MACON GA
615 PM EDT WED JUL 22 1992

  ...STRONG THUNDERSTORMS OVER PARTS OF CENTRAL GEORGIA...

AT 610 PM NATIONAL WEATHER SERVICE RADAR IN MACON SHOWED
SCATTERED THUNDERSTORMS INCREASING OVER PARTS OF CENTRAL GEORGIA.
ONE STORM AT THE MACON AIRPORT WAS PRODUCING VERY HEAVY RAIN
AND A WIND GUST TO 43 MPH AT 602 PM.  MOVEMENT WAS NORTHEAST
AT 15 MPH.

IN ADDITION TO HEAVY RAIN AND STRONG GUSTY WINDS THESE STORMS
WERE PRODUCING A LOT OF LIGHTNING. SMALL HAIL WAS POSSIBLE
IN THE LARGER STORMS.
Special weather statement, Jul 22, 6:28 PM EDT, 26 minutes before
GAZ005-011-222330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
627 PM EDT WED JUL 22 1992

...STRONG THUNDERSTORMS OVER PARTS OF EAST CENTRAL ALABAM AND WEST
CENTRAL GEORGIA...

AT 625 PM NATIONAL WEATHER SERVICE RADAR AT COLUMBUS SHOWED SCATTERED
THUNDESTORMS INCREASING OVER PARTS OF EAST CENTRAL ALABAMA AND WEST
CENTRAL GEORGIA. THE STRONGEST THUNDERSTORMS WERE LOCATED AT COLUMBUS
GEORGIA IN MUSCOGEE COUNTY GEORGIA.

REMAIN ALERT FOR THESE APPROACHING THUNDERSTORMS FOR THE NEXT HOURS OR
SO. AS THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...HEAVY RAINFALL
AND DEADLY LIGHTNING AND POSSIBLE SMALL HAIL.
Special weather statement, Jul 22, 6:30 PM EDT, 24 minutes before
GAZ005-ALZ011-222330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
627 PM EDT WED JUL 22 1992

...STRONG THUNDERSTORMS OVER PARTS OF EAST CENTRAL ALABAM AND WEST
CENTRAL GEORGIA...

AT 625 PM NATIONAL WEATHER SERVICE RADAR AT COLUMBUS SHOWED SCATTERED
THUNDESTORMS INCREASING OVER PARTS OF EAST CENTRAL ALABAMA AND WEST
CENTRAL GEORGIA. THE STRONGEST THUNDERSTORMS WERE LOCATED AT COLUMBUS
GEORGIA IN MUSCOGEE COUNTY GEORGIA.

REMAIN ALERT FOR THESE APPROACHING THUNDERSTORMS FOR THE NEXT HOURS OR
SO. AS THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...HEAVY RAINFALL
AND DEADLY LIGHTNING AND POSSIBLE SMALL HAIL.
Special weather statement, Jul 22, 6:43 PM EDT, 11 minutes before
GAZ006-008-009-222315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MACON GA
645 PM EDT WED JUL 22 1992

  ...STRONG THUNDERSTORMS CONTINUING OVER MACON AND WARNER ROBINS...

AT 640 PM NATIONAL WEATHER SERVICE RADAR IN MACON SHOWED SEVERAL
STRONG THUNDERSTORMS MOVING NORTHEAST THROUGH MACON AND WARNER
ROBINS AND SURROUNDING AREAS.

THESE STORMS WERE PRODUCING VERY HEAVY RAIN...STRONG GUSTY WINDS...
AND A LOT OF LIGHTNING.

OVER ONE INCH OF RAIN FELL AT THE MACON AIRPORT BETWEEN 6 AND 630 PM...
AND HEAVY RAIN WAS CONTINUING TO FALL.

HEAVY RAIN WILL CAUSE STREETS AND LOW LYING AREAS TO FLOOD. MOTORISTS
SHOULD REMAIN ALERT DRIVING IN THE HEAVY DOWNPOURS AND WATCH OUT FOR
WATER COVERED ROADS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 3:35 PM EDTSevere Thunderstorm WarningFFCRichmond55 min
Jul 22, 7:09 PM EDTFlash Flood WarningFFCBibb66 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1992Every severe thunderstorm warning in 1992

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.