Alert archive / Alabama / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 33, NWS Birmingham, AL

April 6, 2022Pickens County, Tuscaloosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 6, 2022, 12:49 PM CDT for Pickens County, Tuscaloosa County, Alabama. It was in force for 41 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
Apr 6, 2022, 12:49 PM CDT (17:49 UTC)
Expired
Apr 6, 2022, 1:30 PM CDT
In force
41 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Pickens County, AL, Tuscaloosa County, AL

The radar

The Columbus AFB radar (KGWX), 83 km from the middle of the area, began a volume at 17:50 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, 5.8 hours before the alert went out and 96 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 2022-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1131 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 2022-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 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
1131 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
517 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.0

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 Apr 6, 12:47 PM CDT, 2 minutes earlier.

Area forecast discussion, Apr 6, 12:47 PM CDT, 2 minutes before
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Hazardous weather outlook, Apr 6, 12:42 PM CDT, 7 minutes before
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In the hours before

Special weather statement, Apr 6, 12:12 PM CDT, 37 minutes before
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Special weather statement, Apr 6, 12:25 PM CDT, 24 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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Special weather statement, Apr 6, 12:30 PM CDT, 19 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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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 9:33 PM CDTRiver Flood WarningBMXChambers, Randolph, Tallapoosa14 hr
Apr 5, 9:44 PM CDTRiver Flood WarningBMXAutauga, Dallas, Elmore, Lowndes, Montgomery14 hr
Apr 6, 2:43 AM CDTDense Fog AdvisoryBMXAutauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more6 hr
Apr 6, 12:12 PM CDTSpecial Weather StatementBMXRussell18 min
Apr 6, 12:25 PM CDTSpecial Weather StatementBMXPickens35 min
Apr 6, 12:30 PM CDTSpecial Weather StatementBMXShelby45 min
Apr 6, 12:55 PM CDTAreal Flood AdvisoryBMXShelby3 hr
Apr 6, 1:09 PM CDTSpecial Weather StatementBMXShelby51 min
Apr 6, 1:34 PM CDTSpecial Weather StatementBMXTuscaloosa26 min
Apr 6, 1:45 PM CDTSevere Thunderstorm WarningBMXPickens, Tuscaloosa45 min
Apr 6, 2:07 PM CDTSpecial Weather StatementBMXAutauga, Elmore38 min
Apr 6, 2:09 PM CDTSpecial Weather StatementBMXClay51 min
Apr 6, 2:12 PM CDTSpecial Weather StatementBMXTuscaloosa33 min
Apr 6, 2:27 PM CDTSpecial Weather StatementBMXLee48 min
Apr 6, 2:29 PM CDTSpecial Weather StatementBMXGreene31 min
Apr 6, 2:34 PM CDTSpecial Weather StatementBMXTuscaloosa26 min
Apr 6, 2:36 PM CDTSpecial Weather StatementBMXDallas39 min
Apr 6, 2:44 PM CDTSevere Thunderstorm WarningBMXDallas31 min
Apr 6, 2:48 PM CDTSpecial Weather StatementBMXElmore42 min
Apr 6, 2:49 PM CDTSpecial Weather StatementBMXJefferson26 min
Apr 6, 2:56 PM CDTSevere Thunderstorm WarningBMXElmore, Lee, Tallapoosa35 min
Apr 6, 3:00 PM CDTSevere Thunderstorm WarningBMXJefferson33 min
Apr 6, 3:07 PM CDTSpecial Weather StatementBMXTuscaloosa23 min
Apr 6, 3:14 PM CDTSpecial Weather StatementBMXTallapoosa46 min
Apr 6, 3:16 PM CDTSpecial Weather StatementBMXLee14 min
Apr 6, 3:26 PM CDTAreal Flood AdvisoryBMXClay, Tallapoosa2 hr
Apr 6, 3:27 PM CDTRiver Flood WarningBMXMontgomery18 hr
Apr 6, 3:31 PM CDTSpecial Weather StatementBMXGreene29 min
Apr 6, 3:37 PM CDTSpecial Weather StatementBMXTuscaloosa38 min
Apr 6, 3:45 PM CDTSpecial Weather StatementBMXMontgomery30 min
Apr 6, 3:49 PM CDTSpecial Weather StatementBMXFayette26 min
Apr 6, 4:00 PM CDTSpecial Weather StatementBMXGreene30 min
Apr 6, 4:07 PM CDTSpecial Weather StatementBMXBibb38 min
Apr 6, 4:09 PM CDTSpecial Weather StatementBMXCherokee36 min
Apr 6, 4:10 PM CDTSpecial Weather StatementBMXLee, Macon, Montgomery50 min
Apr 6, 4:19 PM CDTSpecial Weather StatementBMXWalker26 min
Apr 6, 4:48 PM CDTAreal Flood AdvisoryBMXLee, Macon, Montgomery117 min
Apr 6, 4:53 PM CDTSpecial Weather StatementBMXRussell52 min
Apr 6, 4:55 PM CDTSpecial Weather StatementBMXPickens50 min
Apr 6, 4:57 PM CDTSpecial Weather StatementBMXChilton48 min
Apr 6, 5:29 PM CDTSpecial Weather StatementBMXBlount31 min
Apr 6, 5:32 PM CDTSpecial Weather StatementBMXGreene43 min
Apr 6, 5:37 PM CDTAreal Flood AdvisoryBMXBullock, Lee, Macon, Russell113 min
Apr 6, 5:39 PM CDTSevere Thunderstorm WarningBMXGreene, Sumter24 min
Apr 6, 5:43 PM CDTSevere Thunderstorm WarningBMXBlount, Etowah, St. Clair26 min
Apr 6, 5:53 PM CDTSpecial Weather StatementBMXJefferson52 min
Apr 6, 5:56 PM CDTSpecial Weather StatementBMXDeKalb34 min
Apr 6, 6:07 PM CDTSpecial Weather StatementBMXSumter38 min
Apr 6, 6:30 PM CDTSpecial Weather StatementBMXRussell30 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.