Alert archive / Alabama / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 137, NWS Birmingham, AL

August 10, 1992Calhoun County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 10, 1992, 6:01 PM CDT for Calhoun County, Alabama. It was in force for 44 min.

The area

The counties it named.

The facts

Issued: Aug 10, 1992, 6:01 PM CDT (23:01 UTC)
Expired: Aug 10, 1992, 6:45 PM CDT
In force: 44 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Calhoun County, AL

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 11.0 hours before the alert went out and 234 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: 902 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1373 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: 96 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, Aug 10, 1:45 PM CDT, 4 hours 16 minutes before

ALZ004>008-101930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
145 PM CDT MON AUG 10 1992

...THUNDERSTORMS DEVELOPING RAPIDLY ACROSS NORTH-CENTRAL ALABAMA...

AT 140 PM A BAND OF THUNDERSTORMS WITH HEAVY RAINFALL WAS LOACTED FROM
TUSCALOOSA TO JASPER.  THE THUNDERSTORMS HAVE MOVED LITTLE DURING THE
PAST HOUR AND BECAUSE OF THEIR SLOW MOVEMENT SOME LOCALIZED FLOODING OF
ROADS AND LOW LYING AREAS MAY OCCUR.  ALSO...DANGEROUS CLOUD TO GROUND
LIGHTNING AND STRONG GUSTY WINDS ARE LIKELY WITHIN THIS BAND OF STORMS.

ELSEWHERE...OTHER THUNDERSTORMS WERE WIDELY SCATTERED ACROSS NORTH AND
CENTRAL ALABAMA.  IF THREATENING WEATHER APPROACHES...BE PREAPRED TO
TO SEEK SAFE SHELTERD UNTIL THE STORM PASSES.

Special weather statement, Aug 10, 2:34 PM CDT, 3 hours 27 minutes before

ALZ004>009-102030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
233 PM CDT MON AUG 10 1992

  ...THUNDERSTORMS CONTINUE TO DEVELOP OVER NORTH CENTRAL ALABAMA...

AT 230 PM AN AREA OF THUNDERSTORMS WITH HEAVY RAINFALL WAS LOACTED OVER
WALKER AND WESTERN CULLMAN COUNTIES.  A STRONG THUNDERSTORM PRODUCED
PEA SIZED HAIL WHICH COVERED THE GROUND OVER THE COMMUNITY OF BOLDO NEAR
JASPER IN WALKER COUNTY.  OTHER STRONG THUNDERSTORMS WERE OCCURRING OVER
MARION...LAMAR...TUSCALOOSA...GREENE AND SAINT CLAIR COUNTIES.  THE

THE THUNDERSTORMS HAVE MOVED LITTLE DURING THE PAST HOUR AND BECAUSE OF
THEIR SLOW MOVEMENT SOME LOCALIZED FLOODING OF ROADS AND LOW LYING AREAS
MAY OCCUR.  ALSO...DANGEROUS CLOUD TO GROUND LIGHTNING AND STRONG...
GUSTY WINDS ARE LIKELY WITH THESE STORMS.

IF THREATENING WEATHER APPROACHES...BE PREAPRED TO SEEK SAFE SHELTER
UNTIL THE STORM PASSES.

Special weather statement, Aug 10, 4:40 PM CDT, 1 hour 21 minutes before

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Special weather statement, Aug 10, 5:23 PM CDT, 38 minutes before

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Special weather statement, Aug 10, 5:26 PM CDT, 35 minutes before

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<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <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.
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      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 2:44 PM CDT	Severe Thunderstorm Warning	BMX	Colbert, Lawrence	46 min
Aug 10, 3:00 PM CDT	Tornado Warning	BMX	Lamar	30 min
Aug 10, 3:27 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar	48 min
Aug 10, 4:01 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	29 min
Aug 10, 4:22 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	53 min
Aug 10, 4:40 PM CDT	Severe Thunderstorm Warning	BMX	Greene	50 min
Aug 10, 5:41 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Randolph	49 min
Aug 10, 6:18 PM CDT	Severe Thunderstorm Warning	BMX	Cleburne	32 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1992 Every 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; the sounding from the Mesonet's radiosonde archive.