Alert archive / Alabama / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 73, NWS Mobile, AL

July 3, 1992Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 3, 1992, 3:11 PM CDT for Mobile County, Alabama. It was in force for 64 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 3, 1992, 3:11 PM CDT (20:11 UTC)
Expired
Jul 3, 1992, 4:15 PM CDT
In force
64 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Mobile County, AL

What was reported inside it

TimeReportWhereRemark
Jul 3, 3:45 PM CDTHail 0.75Mobile, AL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.2 hours before the alert went out and 152 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, Slidell Radar S, LA at 12:00Z on 1992-07-03Temperature 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, Slidell Radar S, LA at 12:00Z on 1992-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
2 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 KMOB 032012
SVRMOB
ALC097-032115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
311 PM CDT FRI JUL 3 1992
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTHWEST ALABAMA
 
   ...SOUTHERN MOBILE COUNTY
 
AT 310 PM THE MOBILE RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES WEST
SOUTHWEST OF THE MOBILE AIRPORT MOVING TOWARD THE EAST AT 20 MPH.
 
LARGE HAIL IS INDICATED IN THIS THUNDERSTORM.  IT WILL PASS NEAR THE
SEVEN HILLS AND DAWES COMMUNITIES.
 
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 3, 1:08 PM CDT, 2 hours 3 minutes before
ALZ013-015-031915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
108 PM CDT FRI JUL 3 1992

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR SEVERAL COUNTIES IN
SOUTHWEST ALABAMA UNTIL 500 PM...

THE COUNTIES OF WASHINGTON...CLARKE...MONROE AND CONECUH IN SOUTHWEST
ALABAMA ARE UNDER A SEVERE THUNDERSTORM WATCH UNTIL 500 PM.

WEATHER SERVICE RADARS AT 100 PM INDICATED NO RAINFALL IN ANY OF THESE
COUNTIES AS YET...HOWEVER THUNDERSTORMS WERE DEVELOPING JUST ACROSS THE
STATE LINE IN MISSISSIPPI AND WILL MOVE TOWARD WASHINGTON AND CLARKE
COUNTIES DURING THE NEXT HOUR.

THE ATMOSPHERE IS EXTREMELY MOIST AND UNSTABLE AND SEVERE THUNDERSTORMS
CAN DEVELOP RAPIDLY IN SUCH AN ENVIRONMENT.  RESIDENTS OF THE COUNTIES
IN THE WATCH AREA SHOULD REMAIN ALERT THIS AFTERNOON AND BE PREPARED TO
MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES OR A WARNING
IS ISSUED.
Special weather statement, Jul 3, 2:22 PM CDT, 49 minutes before
ALZ013-015-016-MSZ013-032030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
221 PM CDT FRI JUL 3 1992

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR WASHINGTON...CLARKE
...MONROE AND CONECUH COUNTIES OF ALABAMA UNTIL 500 PM...

AT 215 PM THE MOBILE RADAR SHOWED THUNDERSTORMS MOVING ALONG THE
NORTHERN BORDER OF CLARKE COUNTY.  THEY WERE MOVING TOWARD THE EAST AT
20 MPH.

IN SOUTHERN MISSISSIPPI...THUNDERSTORMS WERE DEVELOPING IN THE
MISSISSIPPI COASTAL COUNTIES.  A VERY STRONG THUNDERSTORM WAS INDICATED
OVER NORTHWEST HANCOCK COUNTY.  IF THIS THUNDERSTORM CONTINUES TO
DEVELOP...A WARNING MAY BE ISSUED FOR HANCOCK AND/OR HARRISON COUNTIES IMISSISSIPPI.

THE ATMOfSPHERE OVER SOUTHERN MISSISSIPPI AND ALABAMA REMAINS VERY MOIST
AND UNSTABLE THIS AFTERNOON.  RESIDENTS IN THE WATCH AREA ESPECIALLY
SHOULD BE ALERT TO RAPID DEVELOPMENT OF SEVERE THUNDERSTORMS.
Special weather statement, Jul 3, 2:23 PM CDT, 48 minutes before
ALZ013-015-016-MSZ013-032030-

SPECIAL WEATHER STATEMENT...CORRECTION FOR TYPEOVER...
NATIONAL WEATHER SERVICE MOBILE AL
221 PM CDT FRI JUL 3 1992

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR WASHINGTON...CLARKE
...MONROE AND CONECUH COUNTIES OF ALABAMA UNTIL 500 PM...

AT 215 PM THE MOBILE RADAR SHOWED THUNDERSTORMS MOVING ALONG THE
NORTHERN BORDER OF CLARKE COUNTY.  THEY WERE MOVING TOWARD THE EAST AT
20 MPH.

IN SOUTHERN MISSISSIPPI...THUNDERSTORMS WERE DEVELOPING IN THE
MISSISSIPPI COASTAL COUNTIES.  A VERY STRONG THUNDERSTORM WAS INDICATED
OVER NORTHWEST HANCOCK COUNTY.  IF THIS THUNDERSTORM CONTINUES TO
DEVELOP...A WARNING MAY BE ISSUED FOR HANCOCK AND/OR HARRISON
COUNTIhES IN MISSISSIPPI.

THE ATMOSPHERE OVER SOUTHERN MISSISSIPPI AND ALABAMA REMAINS VERY MOIST
AND UNSTABLE THIS AFTERNOON.  RESIDENTS IN THE WATCH AREA ESPECIALLY
SHOULD BE ALERT TO RAPID DEVELOPMENT OF SEVERE THUNDERSTORMS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 1:37 PM CDTSevere Thunderstorm WarningMOBAutauga68 min
Jul 3, 2:24 PM CDTSevere Thunderstorm WarningMOBMontgomery51 min
Jul 3, 2:41 PM CDTSevere Thunderstorm WarningMOBMacon64 min
Jul 3, 3:07 PM CDTSevere Thunderstorm WarningMOBBullock53 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.