Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 76, NWS Mobile, AL

August 2, 1993Washington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 2, 1993, 5:03 PM CDT for Washington County, Alabama. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Aug 2, 1993, 5:03 PM CDT (22:03 UTC)
Expired
Aug 2, 1993, 6:00 PM CDT
In force
57 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Washington County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 10.1 hours before the alert went out and 191 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, Centreville/Bibb, AL at 12:00Z on 1993-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1707 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, Centreville/Bibb, AL at 12:00Z on 1993-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
1707 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
987 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
102 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 022203 RRA
SVRMOB
ALC129-022300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
503 PM CDT MON AUG 2 1993
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ALABAMA
 
   ...EASTERN WASHINGTON COUNTY
 
AT 5 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM
OVER EASTERN WASHINGTON COUNTY NEAR LEROY...CARSON...PRESTWICK...AND
CORTELYOU. MOVEMENT WAS SLOW TO THE SOUTH AND SOUTHEAST.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PZROTECTION 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, Aug 2, 1:44 PM CDT, 3 hours 19 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-021930-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
140 PM CDT MON AUG 2 1993

AT 130 PM CDT...A SOLID LINE OF THUNDERSTORMS HAD DEVELOPED FROM
NEAR FT WALTON BEACH AND DESTIN NORTHEASTWARD TO BONIFAY IN HOLMES
COUNTY OF FLORIDA. THE STORMS IN THIS LINE WERE DUMPING VERY HEAVY
RAINFALL AND CAN EASILY PRODUCE SMALL HAIL AND GUSTY WINDS. SINCE THE
STORMS WERE MOVING VERY LITTLE.V..FLOODING OF LOW AREAS IS LIKELY.

OTHER THUNDERSTORMS WITH HEAVY RAIN WERE DEVELOPING IN SOUTHWEST
ALABAMA AND SOUTHEAST MISSISSIPPI...AND STRONG THUNDERSTORMS CONTINUED
IN THE GULF BEGINNING 50 MILES SOUTH OF PENSACOLA AND MOBILE BAY.
Special weather statement, Aug 2, 1:46 PM CDT, 3 hours 17 minutes before
MSZ013-014-ALZ501-LAZ501-022100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
145 PM CDT MON AUG 2 1993

...THUNDERSTORMS POPPING UP ACROSS THE AREA...

AAT 140 PM CDT RADAR SHOWED THUNDERSTORMS...SOME STRONG HAD DEVELOPED
FROM NEAR SPANISH FORT TO CENTRAL MOBILE COUNTY AND THEN SOUTHEAST TO
NEAR PASCAGOULA. MOVEMENT WAS SLOWLY EAST.

MOBILE REGIONAL AIRPORT RECEIVED .07 INCHES OF RAIN AND WIND GUST TO
49 MPH IN A THUNDERSTORM AROUND 115 PM. AS WITH ALL SUMMERTIME STORMS
...LIGHTNING IS THE MOST DANGEROUS ELEMENT AND KILLS THE MOST PEOPLE
DURING A TYPICAL YEAR.

WHEN A THUNDERSTORM THREATENS YOUR AREA...MOVE INDISE AND AWAY FROM
WINDOWS AND ELECTRIAL APPLIANCES...STAY OFFP THE PHONE UNTIL THE DANGER
HAS PASSED.
Special weather statement, Aug 2, 1:49 PM CDT, 3 hours 14 minutes before
MSZ013-014-ALZ501-LAZ501-022100-

SPECIAL WEATHER STATEMENT...COR 3RD LINE
NATIONAL WEATHER SERVICE MOBILE AL
145 PM CDT MON AUG 2 1993

...THUNDERSTORMS POPPING UP ACROSS THE AREA...

AAT 140 PM CDT RADAR SHOWED THUNDERSTORMS...SOME STRONG HAD DEVELOPED
FROM NEAR SPANISH FORT TO CENTRAL MOBILE COUNTY AND THEN SOUTHWEST TO
NEAR PASCAGOULA. MOVEMENT WAS SLOWLY EAST.

MOBILE REGIONAL AIRPORT RECEIVED .07 INCHES OF RAIN AND WIND GUST TO
49 MPH IN A THUNDERSTORM AROUND 115 PM. AS WITH ALL SUMMERTIME STORMS
...LIGHTNING IS THE MOST DANGEROUS ELEMENT AND KILLS THE MOST PEOPLE
DURING A TYPICAL YEAR.

WHEN A THUNDERSTORM THREATENS YOUR AREA...MOVE INDISE AND AWAY FROM
WINDOWS AND ELECTRIAL AP\PLIANCES...STAY OFF THE PHONE UNTIL THE DANGER
HAS PASSED.
Special weather statement, Aug 2, 2:45 PM CDT, 2 hours 18 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-022030-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
240 PM CDT MON AUG 2 1993

AT 230 PM CDT...CLUSTERS OF LARGE THUNDERSTORMS...OCCASIONALLY IN
EAST TO WEST LINES...WERE IN THE WEST FLORIDA PANHANDLE...OVER
COASTAL ALABAMA...AND IN THE GULF BEGINNING 30 MILES SOUTH OF PENSACOLA.

VERY LARGE THUNDERSTORMS...INDICATING HEAVY RAIN WITH FREQUENT
LIGHTNING...GUSTY WINDS AND SMALL HAIL WERE LOCATED IN WASHINGTON
COUNTY OF FLORIDA AND COASTAL MOBILE VOUNTY OF ALABAMA.

ADDITIONAL THUNDERSTORMS WERE OVER A LARGE PORTION OF THE FLORIDA
PANHANDLE FROM PENSACOLA TO TALLAHASSEE.

THE THUNDERSTORMS INDICATED VERY LITTLE MOVEMENT SO FLOODING IS LIKELY
IN POOR DRAINAGE AREAS. MOTORISTS SHOULD NOT ATTEMPT TO CROSS STANDING
WATER.
Special weather statement, Aug 2, 3:33 PM CDT, 1 hour 30 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-022130-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
340 PM CDT MON AUG 2 1993

AT 330 PM CDT...THUNDERSTORMS WERE OCCURRING ALONG THE COAST AND UP TO
50 MILES INLAND FROM NORTHWEST FLORIDA TO MISSISSIPPI. THE STRONGEST
THUNDERSTORMS WERE SCATTERED ALONG THE COAST OF FLORIDA FROM PENSACOLA
TO PANAMA CITY...AND AT THE MOUTH OF MOBILE BAY ALABAMA.

SEVERAL OF THE LARGER STORMS INNDICATED VERY HEAVY RAINFALL...FREQUENT
CLOUD TO GROUND LIGHTNING...GUSTY WINDS AND POSSIBLE SMALL HAIL.

DUE TO THE SLOW MOVEMENT OF THE THUNDERSTORMS...FLOODING WILL BE A
PROBLEM FOR POOR DRAINAGE AREAS.
Special weather statement, Aug 2, 4:44 PM CDT, 19 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-022230-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
440 PM CDT MON AUG 2 1993

AT 430 PM CDT...THUNDERSTORMS WERE OCCURRING ALONG THE COAST AND UP TO
50 MILES INLAND FROM MISSISSIPPI EASTWARD TO THE CENTRAL FLORIDA
PANHANDLE AND SOUTHWEST GEORGIA. A LARGE STORM OVER PENSACOLA WAS
PRODUCING VERY FREQUENT LIGHTNING STRIKES AND VERY HEAVY RAINFALL. SOME
FLOODING OF POORLY DRAINED AREAS AND LOCATIONS THAT NORMALLY RECEIVE
STANDING WATER HAVE BEEN REPORTED.

A LARGE THUNDERSTORM OVER WESTERN BAY COUNTY IS PRODUCING VERY FREQUENT
LIGHTNING STRIKES...ESPECIALLY ALONG THE BEACHES.

LITTLE MOVEMENT HAS BEEN DETECTED.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 2:34 PM CDTSevere Thunderstorm WarningMOBMobile56 min
Aug 2, 4:29 PM CDTSevere Thunderstorm WarningMOBClarke61 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1993Every severe thunderstorm warning in 1993

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.