Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 17, NWS Mobile, AL

March 30, 1993Clarke County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 30, 1993, 11:51 AM CST for Clarke County, Alabama. It was in force for 39 min.

The area

The counties it named.

The facts

Issued: Mar 30, 1993, 11:51 AM CST (17:51 UTC)
Expired: Mar 30, 1993, 12:30 PM CST
In force: 39 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Clarke County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 5.9 hours before the alert went out and 148 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 301751 RRA
SVRMOB
ALC025-301830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1151 AM CST TUE MAR 30 1993
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ALABAMA
 
   ...CLARKE COUNTY
 
AT 1150 AM A SHORT LINE OF SEVERE THUNDERSTORMS WAS INDICATED JUST
SOUTHWEST OF GROVE HILL MOVING TOWARD THE EAST NORTHEAST AT 30 MPH.
 
THESE THUNDERSTORMS WILL PASS THE GROVE HILL...WHATLEY AND FULTON AREAS
WITHIN THE NEXT FEW MINUTES.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALhLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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, 2 hours 27 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, 2 hours 17 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, 1 hour 21 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.

Issued	Product	Office	Counties	Lasted
Mar 30, 11:01 AM CST	Severe Thunderstorm Warning	MOB	Washington	59 min
Mar 30, 12:06 PM CST	Severe Thunderstorm Warning	MOB	Mobile	54 min
Mar 30, 12:50 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	55 min
Mar 30, 1:28 PM CST	Severe Thunderstorm Warning	MOB	Mobile	47 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1993 Every 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.