Alert archive / Alabama / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 94, NWS Mobile, AL

August 10, 1992Chambers County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 10, 1992, 6:01 PM CDT for Chambers County, Alabama. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Aug 10, 1992, 6:01 PM CDT (23:01 UTC)
Expired
Aug 10, 1992, 7:00 PM CDT
In force
59 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Chambers County, AL

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 11.0 hours before the alert went out and 226 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 1992-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 902 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 1992-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
902 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1373 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
96 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 KMGM 102302
SVRMGM
ALC017-110000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
601 PM CDT MON AUG 10 1992
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH ALABAMA
 
   ...CHAMBERS COUNTY
 
AT 555 PM CDT...WEATHER RADAR AT MONTGOMERY SHOWED A SEVERE
THUNDERSTORM OVER CHAMBERS COUNTY...BETWEEN CAMP HILL AND LAFAYETTE.
THE THUNDERSTORM WAS MOVING SLOWLY TOWARD THE SOUTH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTZERIOR 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, Aug 10, 4:49 PM CDT, 1 hour 12 minutes before
FLZ001-002-102230

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
440 PM CDT SUN AUG 9 1992

AT 430 PM CDT...SEVERAL THUNDERSTORMS INDICATING VERY HEAVY RAIN WERE
OCCURRING OVER NORTHWEST FLORIDA AND SOUTHWEST ALABAMA. IN THE FLORIDA
PANHANDLE THESE STORMS WERE LOCATED NEAR PENSACOLA AND ON THE COAST
NEAR PORT ST JOE.

IN SOUTHWEST ALABAMA...STRONG THUNDERSTORMS BRACKETED MOBILE.

HEAVY RAIN...GUSTY WINDS...FREQdUENT LIGHTNING...AND POSSIBLY SMALL
HAIL WILL ACCOMPANY THESE STORMS. THE HEAVY RAIN WILL CAUSE FLOODING OF
STREETS AND LOW AREAS.

MOVEMENTS WERE SLOWLY SOUTHWEST.
Special weather statement, Aug 10, 4:52 PM CDT, 1 hour 9 minutes before
ALZ016-102245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
450 PM CDT MON AUG 10 1992

THUNDERSTORMS OVER BALDWIN COUNTY ALABAMA HAVE WEAKENED AND THE SEVERE
THUNDERSTORM WARNING EXPIRED AT 445 PM CDT.

AT 450 PM CDT RADAR SHOWED CLUSTERS OF STRONG THUNDERSTORMS OVER BALDWIN
AND MOBILE COUNTIES IN SOUTHWEST ALABAMA.  THE STROGEST STORMS WERE OVER
MOBILE COUNTY.  THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTNINhG...AND SMALL HAIL.  THEY WERE MOVING TOWARDS THE SOUTHWEST AT
10 MPH.
Special weather statement, Aug 10, 4:52 PM CDT, 1 hour 9 minutes before
FLZ001-002-102230

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY  ...DATE TIME CORRECTION...
NATIONAL WEATHER SERVICE PENSACOLA FL
440 PM CDT MON AUG 10 1992

AT 430 PM CDT...SEVERAL THUNDERSTORMS INDICATING VERY HEAVY RAIN WERE
OCCURRING OVER NORTHWEST FLORIDA AND SOUTHWEST ALABAMA. IN THE FLORIDA
PANHANDLE THESE STORMS WERE LOCATED NEAR PENSACOLA AND ON THE COAST
NEAR PORT ST JOE.

IN SOUTHWEST ALABAMA...STRONG THUNDERSTORMS BRACKETED MOBILE.
l
HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING...AND POSSIBLY SMALL
HAIL WILL ACCOMPANY THESE STORMS. THE HEAVY RAIN WILL CAUSE FLOODING OF
STREETS AND LOW AREAS.

MOVEMENTS WERE SLOWLY SOUTHWEST.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 7:23 PM CDTSevere Thunderstorm WarningMOBMonroe37 min
Aug 10, 3:43 PM CDTSevere Thunderstorm WarningMOBBaldwin62 min
Aug 10, 4:10 PM CDTSevere Thunderstorm WarningMOBDallas65 min

Nearby

Severe Thunderstorm Warnings in Alabama, 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.