Alert archive / Alabama / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 150, NWS Birmingham, AL

July 13, 2022Bibb County, Perry County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 13, 2022, 1:55 PM CDT for Bibb County, Perry 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 13, 2022, 1:55 PM CDT (18:55 UTC)
Expired
Jul 13, 2022, 2:31 PM CDT
In force
36 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Bibb County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 57 km from the middle of the area, began a volume at 18:59 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 13, 1:49 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.9 hours before the alert went out and 57 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 2022-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 794 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 2022-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
794 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
809 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
61 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 13, 12:47 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Jul 13, 12:47 PM CDT, 1 hour 8 minutes before
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Hazardous weather outlook, Jul 13, 3:54 AM CDT, 10 hours 1 minute before
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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.
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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.
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In the hours before

Special weather statement, Jul 13, 1:39 PM CDT, 16 minutes before
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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <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.
      </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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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 6:32 AM CDTSpecial Weather StatementBMXMarion43 min
Jul 13, 7:17 AM CDTSpecial Weather StatementBMXMarion43 min
Jul 13, 1:39 PM CDTSpecial Weather StatementBMXBibb36 min
Jul 13, 3:10 PM CDTSpecial Weather StatementBMXHale35 min
Jul 13, 3:29 PM CDTSpecial Weather StatementBMXPickens31 min
Jul 13, 3:58 PM CDTSpecial Weather StatementBMXDallas32 min
Jul 13, 4:15 PM CDTSpecial Weather StatementBMXElmore30 min
Jul 13, 4:20 PM CDTSpecial Weather StatementBMXShelby25 min
Jul 13, 4:22 PM CDTSpecial Weather StatementBMXShelby23 min
Jul 13, 4:28 PM CDTAreal Flood AdvisoryBMXMontgomery2 hr
Jul 13, 4:44 PM CDTSpecial Weather StatementBMXShelby46 min
Jul 13, 4:50 PM CDTSevere Thunderstorm WarningBMXShelby40 min
Jul 13, 4:50 PM CDTSevere Thunderstorm WarningBMXGreene27 min
Jul 13, 5:00 PM CDTSpecial Weather StatementBMXPerry30 min
Jul 13, 5:03 PM CDTSpecial Weather StatementBMXElmore27 min
Jul 13, 5:12 PM CDTSpecial Weather StatementBMXLee33 min
Jul 13, 5:23 PM CDTSevere Thunderstorm WarningBMXHale, Marengo21 min
Jul 13, 5:45 PM CDTSpecial Weather StatementBMXDallas15 min
Jul 13, 6:42 PM CDTSpecial Weather StatementBMXAutauga18 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2022Every severe thunderstorm warning in 2022

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.