Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 362, NWS Birmingham, AL

August 7, 2023Fayette County, Walker County, Winston County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 7, 2023, 2:15 PM CDT for Fayette County, Walker County, Winston County, Alabama. It was in force for 60 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
Aug 7, 2023, 2:15 PM CDT (19:15 UTC)
Expired
Aug 7, 2023, 3:15 PM CDT
In force
60 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Fayette County, AL, Walker County, AL, Winston County, AL

The radar

The Columbus AFB radar (KGWX), 79 km from the middle of the area, began a volume at 19:17 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
Aug 7, 10:40 AM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.3 hours before the alert went out and 102 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 2023-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2377 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 2023-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
2377 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1025 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
1.1
Supercell composite
10.7

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 Aug 7, 1:04 PM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, Aug 7, 1:04 PM CDT, 1 hour 11 minutes before
<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Aug 7, 4:09 AM CDT, 10 hours 6 minutes before
Hazardous Weather Outlook
National Weather Service Birmingham AL
409 AM CDT Mon Aug 7 2023

ALZ011>015-017>050-081215-
Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun-Cherokee-
Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair-Talladega-
Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton-Coosa-Tallapoosa-
Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore-Montgomery-Macon-
Bullock-Lee-Russell-Pike-Barbour-
409 AM CDT Mon Aug 7 2023

This Hazardous Weather Outlook is for the counties served by the
National Weather Service office in Birmingham.

.DAY ONE...Outlook through Tonight.

Severe thunderstorms are possible across Central Alabama today,
mainly this afternoon and evening. Storms will pose a threat of
damaging wind gusts and hail up to quarter size.

Heat indices are expected to range from 105 to 115 degrees across
Central Alabama today.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Additional severe thunderstorms are possible across Central Alabama
on Tuesday and Wednesday. Storms will pose a threat of damaging wind
gusts.

Heat indices could approach 105 degrees across southern portions of
Central Alabama each afternoon Tuesday through Sunday.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management may be needed
through Wednesday.

In the hours before

Special weather statement, Aug 7, 12:56 PM CDT, 1 hour 19 minutes before
Special Weather Statement
National Weather Service Birmingham AL
1256 PM CDT Mon Aug 7 2023

ALZ017-018-071845-
Etowah AL-Blount AL-
1256 PM CDT Mon Aug 7 2023

...A strong thunderstorm will impact portions of northeastern Blount
and northwestern Etowah Counties through 145 PM CDT...

At 1254 PM CDT, Doppler radar was tracking a strong thunderstorm over
Snead, or 12 miles northeast of Oneonta, moving east at 25 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Gadsden, Rainbow City, Attalla, Sardis City, Altoona, Snead, Susan
Moore, Walnut Grove, Reece City, Aurora, Gadsden Mall, Noccalula
Falls, Gadsden Steam Plant, Big Wills Creek, Howelton, Crudup,
Mountainboro, Keener, Rockledge and Gadsden Water Works.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
central and northeastern Alabama.

&&

LAT...LON 3397 8595 3403 8648 3415 8647 3416 8637
      3410 8630 3418 8619 3419 8611 3420 8611
      3420 8593
TIME...MOT...LOC 1754Z 269DEG 23KT 3410 8634

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

56
Special weather statement, Aug 7, 1:16 PM CDT, 59 minutes before
Special Weather Statement
National Weather Service Birmingham AL
116 PM CDT Mon Aug 7 2023

ALZ017>020-026-071915-
Calhoun AL-Etowah AL-St. Clair AL-Blount AL-Cherokee AL-
116 PM CDT Mon Aug 7 2023

...Strong thunderstorms will impact portions of southeastern Blount,
northern Calhoun, Etowah, northeastern St. Clair and Cherokee
Counties through 215 PM CDT...

At 116 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles northeast of Little River Falls to near
Tabor Road to near Allgood. Movement was east at 40 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Gadsden, Jacksonville, Rainbow City, Oneonta, Attalla, Piedmont,
Hokes Bluff, Centre, Cedar Bluff, Cleveland, Little River Canyon
National Preserve, Forney, Centre Municipal Airport, Glencoe,
Ashville, Sardis City, Locust Fork, Ohatchee, Steele and Leesburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
central and northeastern Alabama.

&&

LAT...LON 3399 8540 3394 8553 3377 8588 3391 8665
      3414 8635 3410 8630 3418 8619 3419 8611
      3420 8610 3420 8584 3424 8584 3424 8581
      3426 8581 3426 8577 3436 8566 3437 8563
      3440 8563 3444 8558 3449 8557 3452 8551
TIME...MOT...LOC 1816Z 271DEG 35KT 3447 8552 3414 8592 3389 8648

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

25/Owen
Special weather statement, Aug 7, 1:52 PM CDT, 23 minutes before
Special Weather Statement
National Weather Service Birmingham AL
152 PM CDT Mon Aug 7 2023

ALZ011>015-017-018-022>024-026-071945-
Fayette AL-Walker AL-Winston AL-Pickens AL-Etowah AL-Jefferson AL-
Tuscaloosa AL-St. Clair AL-Marion AL-Lamar AL-Blount AL-
152 PM CDT Mon Aug 7 2023

...Strong thunderstorms will impact portions of Walker, northwestern
Tuscaloosa, southeastern Marion, northern Pickens, Blount,
northwestern Etowah, northern Jefferson, southern Winston,
northwestern St. Clair, Fayette and southern Lamar Counties through
245 PM CDT...

At 151 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Nectar to 6 miles southwest of Millport.
Movement was east at 10 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Gadsden, Jasper, Gardendale, Rainbow City, Oneonta, Attalla,
Winfield, Fayette, Springville, Sumiton, Cordova, Dora, Carbon Hill,
Vernon, Gordo, Reform, Blountsville, Cleveland, Millport and
Carrollton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
central, northeastern, northwestern and west central Alabama.

&&

LAT...LON 3371 8825 3397 8790 3425 8711 3399 8711
      3399 8714 3389 8709 3386 8699 3397 8677
      3426 8649 3410 8630 3416 8622 3401 8601
      3357 8699 3316 8832
TIME...MOT...LOC 1851Z 283DEG 10KT 3396 8665 3350 8816

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

25/Owen

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 9:16 PM CDTExcessive Heat WarningBMXAutauga, Barbour, Bibb, Bullock, Chambers, Chilton and 23 more24 hr
Aug 7, 12:56 PM CDTSpecial Weather StatementBMXEtowah49 min
Aug 7, 1:03 PM CDTSevere Thunderstorm WarningBMXMarion57 min
Aug 7, 1:15 PM CDTSevere Thunderstorm WarningBMXLamar, Marion75 min
Aug 7, 1:16 PM CDTSpecial Weather StatementBMXCherokee, Etowah59 min
Aug 7, 1:39 PM CDTSevere Thunderstorm WarningBMXWinston53 min
Aug 7, 1:52 PM CDTSpecial Weather StatementBMXBlount, Fayette, Lamar, Pickens, Walker, Winston53 min
Aug 7, 2:22 PM CDTSpecial Weather StatementBMXCherokee, Etowah68 min
Aug 7, 2:33 PM CDTSevere Thunderstorm WarningBMXBlount57 min
Aug 7, 2:42 PM CDTSpecial Weather StatementBMXBlount, Fayette, Jefferson, Lamar, Pickens, St. Clair and 2 more63 min
Aug 7, 2:47 PM CDTSevere Thunderstorm WarningBMXBlount, Fayette, Jefferson, Lamar, Pickens, Tuscaloosa and 2 more58 min
Aug 7, 2:50 PM CDTSevere Thunderstorm WarningBMXBlount, Cherokee, Etowah, St. Clair70 min
Aug 7, 3:06 PM CDTSevere Thunderstorm WarningBMXCalhoun, Jefferson, St. Clair, Shelby, Talladega69 min
Aug 7, 3:14 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cleburne61 min
Aug 7, 3:21 PM CDTAreal Flood AdvisoryBMXBlount, Cherokee, Etowah3 hr
Aug 7, 3:28 PM CDTSpecial Weather StatementBMXPickens, Tuscaloosa77 min
Aug 7, 3:59 PM CDTSpecial Weather StatementBMXBibb, Clay, Shelby31 min
Aug 7, 4:12 PM CDTSevere Thunderstorm WarningBMXCleburne, Randolph27 min
Aug 7, 4:26 PM CDTSpecial Weather StatementBMXRandolph64 min
Aug 7, 4:33 PM CDTSpecial Weather StatementBMXBibb, Chilton57 min
Aug 7, 4:34 PM CDTSpecial Weather StatementBMXChambers, Coosa, Tallapoosa56 min
Aug 7, 4:55 PM CDTSpecial Weather StatementBMXTallapoosa65 min
Aug 7, 5:43 PM CDTSpecial Weather StatementBMXHale32 min
Aug 7, 6:07 PM CDTSpecial Weather StatementBMXPerry53 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2023Every severe thunderstorm warning in 2023

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.