Alert archive / Alabama / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 78, NWS Mobile, AL

July 8, 1992Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 8, 1992, 4:45 PM CDT for Mobile County, Alabama. It was in force for 30 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 8, 1992, 4:45 PM CDT (21:45 UTC)
Expired
Jul 8, 1992, 5:15 PM CDT
In force
30 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Mobile County, AL

What was reported inside it

TimeReportWhereRemark
Jul 8, 4:50 PM CDTHail 1Mobile, 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, 9.8 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 1992-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 759 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, Slidell Radar S, LA at 12:00Z on 1992-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 square meters per square second.193958Sfc1 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
759 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
1221 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMOB 082146
SVRMOB
ALC097-082215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
445 PM CDT WED JUL 8 1992
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTHWEST ALABAMA
 
   ...CENTRAL MOBILE COUNTY
 
 
 
AT 435 PM A NATIONAL WEATHER SERVICE EMPLOYEE REPORTED ONE HALF INCH
HAIL ONE MILE SOUTH OF THE AIRPORT. THIS THUNDERSTORM IS MOVING TO THE
EAST VERY SLOWLY. PERSONS IN CENTRAL MOBILE COUNTY SHOULD SEEK SHELTER
IMMEDIATELY UNTIL THIS THUNDERSTORM HAS PASSED.
 
 
 
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 8, 11:25 AM CDT, 5 hours 20 minutes before
ALZ013-015-016-MSZ014-013-081730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1125 AM CDT WED JUL 8 1992

...HEAT INDICES WILL RISE TO NEAR DANGER LEVELS IN SOUTHEAST MISSISSIPPI
AND SOUTHWEST ALABAMA THIS AFTERNOON...
...WIDELY SCATTERED...BUT STRONG THUNDERSTORMS POSSIBLE FOR THE ALABAMA
COASTAL COUNTIES...

UNDER PARTLY CLOUDY SKIES AND WITH LIGHT NORTHERLY WINDS...THE
TEMPERATURE ALONG THE COASTAL COUNTIES OF MISSISSIPPI AND ALABAMA
WILL RISE TO THE MID TO UPPER 90S OVER MOST OF THE AREA WITH SOME
LOCATIONS REACHING THE 100 DEGREE MARK. THE ONLY EXCEPTION WILL BE ALONG
THE IMMEDIATE COAST WHERE THE TEMPERATURE SHOULD REMAIN IN THE LOW 90S.

AS A RESULT OF THESE CONDITIONS...HEAT INDICES WILL RISE TO 105 DEGREES
OVER MOST OF THE AREA AND LEVELS OF 110 DEGREES ARE POSSIBLE.

RESIDENTS IN SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI SHOULD EXERCISE
CAUTION WHILE OUTDOORS THIS AFTERNOON.  AVOID STRENUOUS ACTIVITY...DRINK
PLENTY OF LIQUIDS AND TAKE FREQUENT REST PERIODS.  PERSONS IN
UN-AIRCONDITONED LOCATIONS...ESPECIALLY THE ELDERLY...SHOULD GO TO A
LOCATION WHERE IT IS AIR CONDITIONED IF POSSIBLE.

A FEW THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE SEA-BREEZE LINE
THIS AFTERNOON.  THAT OCCURS WHEN THE COOLER GULF AIR FLOWS INLAND AND
LIFTS THE VERY HOT INLAND AIR.

THUNDERSTORMS DEVELOPING ALONG THE SEA BREEZE WILL BE WIDELY SCATTERED
BUT ARE EXPECTED TO BE QUITE STRONG.  STRONG GUSTY WINDS...DANGEROUS
LIGHTNING...HEAVY RAINFALL AND POSSIBLE HAIL.

RESIDENTS OF THE SOUTHERN PORTIONS OF ALABAMA AND MISSISSIPPI SHOULD
PLAN TO AVOID THE HEAT TODAY AND IF A THUNDERSTORM DEVELOPS NEAR YOU
...STAY INDOORS UNTIL IT HAS ENDED.

 ,
Special weather statement, Jul 8, 2:07 PM CDT, 2 hours 38 minutes before
FLZ004-082000-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
205 PM CDT WED JUL 8 1992

A VERY STRONG THUNDERSTORM HAD DEVELOPED IN BAY COUNTY NORTHEAST OF
PANAMA CITY...NEAR LYNN HAVEN.

THIS STORM INDICATED VERY HEAVY RAINFALL...FREQUENT LIGHTNING...
AND POSSIBLE SMALL HAIL.

SINCE THE STORM WAS MOVING VERY LITTLE...LOCALIZED FLOODING IS A
LIKELYHOOD.

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.