Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 16, NWS Mobile, AL

March 30, 1993Washington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 30, 1993, 11:01 AM CST for Washington County, Alabama. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Mar 30, 1993, 11:01 AM CST (17:01 UTC)
Expired
Mar 30, 1993, 12:00 PM CST
In force
59 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, 5.0 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 1993-03-30Temperature 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, Centreville/Bibb, AL at 12:00Z on 1993-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2241 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
111 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 301704 COR
SVRMOB
ALC129-301800-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION FOR STORM LOCATION...
NATIONAL WEATHER SERVICE MOBILE AL
1101 AM CST TUE MAR 30 1993

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL NOON CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHWEST ALABAMA

   ...WASHINGTON COUNTY

AT 1055 AM TWO SEVERE THUNDERSTORMS...ONE 5 MILES EAST OF MILLRY AND
ANOTHER 5 MILES WEST OF MILLRY...ARE MOVING TOWARD THE EAST-NORTHEAST
AT 25 MPH.

THESE THUNDERSTORMS WILL LIKELY PRODUCE LARGE HAIL.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VnERY 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

Local storm report, Mar 30, 9:24 AM CST, 1 hour 37 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
920 AM CST TUESDAY MAR 30 1993

TIME             EVENT
0915             PEA TO MARBLE SIZE HAIL REPORTED AT WIGGINS IN
                 STONE COUNTY MISSISSIPPI BY WIGGINS PD.
Special weather statement, Mar 30, 9:34 AM CST, 1 hour 27 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-301625-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
935 AM CST TUE MAR 30 1993

...A SPECIAL MARINE WARNING IS IN EFFECT UNTIL 1115 AM CST FOR
THE COASTAL WATERS OF ESCAMBIA AND SANTA ROSA COUNTIES IN FLORIDA...

AT 925 AM CST...A BAND OF SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY
RAIN...STRONG WINDS...FREQUENT LIGHTNING AND POSSIBLE HAIL STRETCHED
FROM 60 MILES SOUTH OF PANAMA CITY NORTHWEST INTO COASTAL MISSISSIPPI.
THE THUNDERSTORMS WERE MOVING NORTHEAST AT AT 30 MILES AN HOUR.

PEOPLE IN NORTHWEST FLORIDA...ESPECIALLY ALONG THE COASTS OF ESCAMBIA
AND SANTA ROSA COUNTIES SHOULD BE ON THE LOOKOUT FOR THESE POTENTIALLY
DANGEROUS THUNDERSTORMS AND BE READY TO TAKE SHELTER IMMEDIATELY.
ALSO...BOATERS SHOULD SEEK SAFE HARBOR UNTIL THE STORMS PASS BY.

CONDITIONS WILL REMAIN FAVORABLE FOR OTHER STRONG THUNDERSTORMS TO FORM
FOR THE REMAINDER OF THIS AFTERNOON AND (TONIGHT.
Special weather statement, Mar 30, 10:30 AM CST, 31 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-301725-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
1035 AM CST TUE MAR 30 1993

...A SPECIAL MARINE WARNING IS IN EFFECT UNTIL 1115 AM CST FOR
THE COASTAL WATERS OF ESCAMBIA AND SANTA ROSA COUNTIES IN FLORIDA...

AT 1025 AM CST...A BAND OF SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY
RAIN...STRONG WINDS...FREQUENT LIGHTNING AND POSSIBLE HAIL STRETCHED
FROM 30 MILES SOUTH OF PANAMA CITY NORTHWEST THROUGH PENSACOLA AND
MOBILE AND CONTINUED INTO SOUTHEAST MISSISSIPPI.  MOVEMENT WAS
NORTHEAST AT 30 MILES AN HOUR.

PEOPLE IN NORTHWEST FLORIDA...ESPECIALLY ALONG THE COASTS OF ESCAMBIA
AND SANTA ROSA COUNTIES SHOULD BE ON THE LOOKOUT FOR THESE POTENTIALLY
DANGEROUS THUNDERSTORMS AND BE READY TO TAKE SHELTER IMMEDIATELY.
ALSO...BOATERS SHOULD SEEK SAFE HARBOR UNTIL THE STORMS PASS BY.

CONDITIONS WILL REMAIN FAVORABLE FOR OTHER STRONG THUNDERSTORMS TO FORM
FOR THE REMDAINDER OF THIS AFTERNOON AND TONIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 11:51 AM CSTSevere Thunderstorm WarningMOBClarke39 min
Mar 30, 12:06 PM CSTSevere Thunderstorm WarningMOBMobile54 min
Mar 30, 12:50 PM CSTSevere Thunderstorm WarningMOBBaldwin55 min
Mar 30, 1:28 PM CSTSevere Thunderstorm WarningMOBMobile47 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.