Alert archive / Alabama / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 253, NWS Birmingham, AL

July 30, 2025St. Clair County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 30, 2025, 2:39 PM CDT for St. Clair County, Alabama. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 30, 2025, 2:39 PM CDT (19:39 UTC)
Expired
Jul 30, 2025, 3:15 PM CDT
In force
36 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County St. Clair County, AL

The radar

The Birmingham radar (KBMX), 74 km from the middle of the area, began a volume at 19:39 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.7 hours before the alert went out and 74 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, Birmingham, AL at 12:00Z on 2025-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 797 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, Birmingham, AL at 12:00Z on 2025-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
797 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
942 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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.

NWS Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 30, 1:18 PM CDT, 1 hour 21 minutes earlier.

Area forecast discussion, Jul 30, 1:18 PM CDT, 1 hour 21 minutes before
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Hazardous weather outlook, Jul 30, 2:34 AM CDT, 12 hours 5 minutes before
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      <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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In the hours before

Special weather statement, Jul 30, 1:36 PM CDT, 1 hour 3 minutes before
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<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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Special weather statement, Jul 30, 2:05 PM CDT, 34 minutes before
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  <title>Service Notice</title>
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</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.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Special weather statement, Jul 30, 2:16 PM CDT, 23 minutes before
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  <title>Service Notice</title>
  <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.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 7:04 PM CDTSpecial Weather StatementBMXFayette26 min
Jul 29, 7:30 PM CDTAreal Flood AdvisoryBMXBibb, Perry2 hr
Jul 29, 7:37 PM CDTSpecial Weather StatementBMXPerry53 min
Jul 29, 8:15 PM CDTSpecial Weather StatementBMXHale45 min
Jul 29, 8:49 PM CDTSpecial Weather StatementBMXTuscaloosa26 min
Jul 29, 8:50 PM CDTSpecial Weather StatementBMXLamar40 min
Jul 29, 9:03 PM CDTSevere Thunderstorm WarningBMXLamar42 min
Jul 29, 9:06 PM CDTSpecial Weather StatementBMXGreene39 min
Jul 29, 11:33 PM CDTSpecial Weather StatementBMXBarbour27 min
Jul 29, 11:50 PM CDTSpecial Weather StatementBMXBarbour25 min
Jul 30, 1:36 PM CDTSpecial Weather StatementBMXEtowah24 min
Jul 30, 2:05 PM CDTSpecial Weather StatementBMXBarbour25 min
Jul 30, 2:16 PM CDTSpecial Weather StatementBMXBlount29 min
Jul 30, 3:57 PM CDTSpecial Weather StatementBMXPike48 min
Jul 30, 4:03 PM CDTSpecial Weather StatementBMXJefferson27 min
Jul 30, 4:18 PM CDTSpecial Weather StatementBMXMarengo27 min
Jul 30, 4:19 PM CDTSpecial Weather StatementBMXShelby26 min
Jul 30, 4:20 PM CDTSpecial Weather StatementBMXShelby25 min
Jul 30, 4:35 PM CDTSpecial Weather StatementBMXPike25 min
Jul 30, 5:12 PM CDTSpecial Weather StatementBMXDallas33 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2025Every severe thunderstorm warning in 2025

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; radar from the NEXRAD Level II archive.