Alert archive / Alabama / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 6, NWS Mobile, AL

March 1, 1991Chambers County, Lee County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 1, 1991, 3:01 PM CST for Chambers County, Lee County, Alabama. It was in force for 35 min. 2 reports 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
Mar 1, 1991, 3:01 PM CST (21:01 UTC)
Expired
Mar 1, 1991, 3:36 PM CST
In force
35 min
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Chambers County, AL, Lee County, AL

What was reported inside it

TimeReportWhereRemark
Mar 1, 3:10 PM CSTThunderstorm Wind 0Chambers, AL
Mar 1, 3:15 PM CSTThunderstorm Wind 0Lee, 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

Centreville/Bibb, AL (KCKL), launched 12:00Z, 9.0 hours before the alert went out and 171 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 1991-03-01Temperature 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 1991-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 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
1376 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Mar 1, 11:07 AM CST, 3 hours 54 minutes before
ALZ013-015-016-MSZ013-014-011900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1105 AM CST FRI MAR 1 1991

...SPECIAL MARINE WARNING IN EFFECT FOR THE MISSISSIPPI COASTAL WATER
FROM THE MOUTH OF THE MISSISSIPPI RIVER TO OCEAN SPRINGS UNTIL NOON...

...TORNADO WATCH NUMBER 17 REMAINS IN EFFECT FOR ALL COUNTIES IN
SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA AND THE ADJACENT COASTAL
WATERS...

AT 1100 AM  NATIONAL WEATHER SERVICE RADARS SHOWED A LARGE AREA OF
RAIN WITH IMBEDED THUNDERSTORMS COVERING MOST OF SOUTHEAST MISSISSIPPI
AND SOUTHWEST ALABAMA AND THE ADJACENT COASTAL WATERS.  THE STRONGEST
STORMS WERE LOCATED IN A 50 MILE WIDE BAND FROM NEAR LEAKSVILLE
MISSISSIPPI TO NEW ORLEANS LOUISIANNA.  THE STORMS ARE MOVING TO THE
NORTH AT 45 MPH.

THESE STORMS HAVE PRODUCED WIND GUST IN EXCESS OF GALE FORCE OVER THE
LOUISIANNA COASTAL WATERS AND GUST TO 40 TO 45 MPH ALONG THE
MISSISSIPPI ALABAMA COAST.  HEAVY RAIN.z..DANGEROUS LIGHTINING ALSO
ACCOMPANY THESE STORMS.

RESIDENCE SHOUD REMAIN ALERT AND BE READY TAKE SHELTER IF THREATENING
WEATHER IS SPOTTED OR A WARNING IS ISSUED.
Special weather statement, Mar 1, 11:32 AM CST, 3 hours 29 minutes before
FLZ001>004-011835-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
1135 AM CST FRI MAR 1 1991

...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN
NORTHWEST FLORIDA UNTIL 300 PM CST ESCAMBIA...SANTA ROSA...OKALOOSA..

AT 1130 AM CST...TWO CLUSTERS OF THUNDERSTORMS WITH HEAVY RAIN WERE 50
TO 75 MILES WEST OF NORTHWEST FLORIDA. THE CLOSEST CLUSTER WAS IN THE
GULF 60 MILES SOUTH OF MOBILE WHILE THE OTHER CLUSTER WAS IN SOUTHEAST
MISSISSIPPI SPREADING FROM BILOXI NORTH FOR 50 MILES.

OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED IN CENTRAL AND NORTH
ESCAMBIA...SANTA ROSA AND OKALOOSA COUNTIES OF FLORIDA.

THE STRONGER THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR
WHICH SHOULD BRING THEM INTO THE PENSACOLA AREA SHORTLY AFTER 12 PM.
Special weather statement, Mar 1, 12:34 PM CST, 2 hours 27 minutes before
FLZ001>004-011935-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
1235 PM CST FRI MAR 1 1991

...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN
NORTHWEST FLORIDA UNTIL 300 PM CST ESCAMBIA...SANTA ROSA...OKALOOSA..

AT 1230 PM CST...CLUSTERS OF THUNDERSTORMS WITH HEAVY RAIN WERE MOVING
INTO NORTHWEST FLORIDA FROM SOUTHWEST ALABAMA AND THE ADJACENT COASTAL
WATERS. THE STRONGER THUNDERSTORMS WERE 30 MILES SOUTHWEST OF PENSACOLA
AND IN A SHORT LINE NEAR MOBILE.

THE LINE WAS MOVING EAST AT 30 MILES AN HOUR WHILE THE INDIVIDUAL
THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR.

PEOPLE IN NORTHWEST FLORIDA SHOULD KEEP INFORMED THIS AFTERNOON AND BE
PREPARED TO TAKE COVER IF WARNINGS ARE ISSUED OR DANGEROUS
THUNDERSTORMS APPROACH. ANY OF THE THUNDERSTORMS THIS AFTERNOON MAY
BRING HEAVY RAIN...DAMAGING WINDS...HAIL OR A POSSIBLE TORNADO.
Local storm report, Mar 1, 1:02 PM CST, 1 hour 59 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
100 PM CST FRIDAY MAR 1 1991

TIME             PLACE         EVENT
1245 PM          GROVE HILL ALABAMA...POSSIBLE TORNADO TREES AND
                      L POWER LINES DOWN.
1245 PM          THOMASVILLE...TORNADO SITED DOING TREE TOP DAMAGE.
Special weather statement, Mar 1, 1:42 PM CST, 1 hour 19 minutes before
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Special weather statement, Mar 1, 2:32 PM CST, 29 minutes before
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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 1, 12:39 PM CSTTornado WarningMOBWilcox66 min
Mar 1, 12:40 PM CSTTornado WarningMOBClarke20 min
Mar 1, 1:12 PM CSTSevere Thunderstorm WarningMOBButler, Lowndes63 min
Mar 1, 1:21 PM CSTTornado WarningMOBBaldwin54 min
Mar 1, 1:38 PM CSTTornado WarningMOBMontgomery52 min
Mar 1, 6:35 AM CSTSevere Thunderstorm WarningMOBHarrison25 min
Mar 1, 11:27 AM CSTSevere Thunderstorm WarningMOBGeorge, Jackson63 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1991Every severe thunderstorm warning in 1991

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.