Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 348, NWS Birmingham, AL

August 6, 2023Bibb County, Chilton County, Shelby County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 6, 2023, 3:41 PM CDT for Bibb County, Chilton County, Shelby County, Alabama. It was in force for 64 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 6, 2023, 3:41 PM CDT (20:41 UTC)
Expired
Aug 6, 2023, 4:45 PM CDT
In force
64 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bibb County, AL, Chilton County, AL, Shelby County, AL

The radar

The Birmingham radar (KBMX), 16 km from the middle of the area, began a volume at 20:42 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 6, 1:21 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.7 hours before the alert went out and 17 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 2023-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2351 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 2023-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 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
2351 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
979 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.7

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 6, 3:14 PM CDT, 27 minutes earlier.

Area forecast discussion, Aug 6, 3:14 PM CDT, 27 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 6, 4:14 AM CDT, 11 hours 27 minutes before
Hazardous Weather Outlook
National Weather Service Birmingham AL
414 AM CDT Sun Aug 6 2023

ALZ011>015-017>050-071215-
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-
414 AM CDT Sun Aug 6 2023

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

.DAY ONE...Outlook through Tonight.

Heat indices are forecast to reach or exceed 105 degrees across
much of Central Alabama today. Locations across the Black Belt are
forecast to experience heat index values of 110 degrees.

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

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Severe thunderstorms are possible across Central Alabama on Monday
and Tuesday, mainly during the afternoon and evening. Storms will
pose a threat of damaging wind gusts and large hail.

Heat indices are forecast to reach or exceed 105 degrees across
all of Central Alabama on Monday. Heat indices could approach 105
degrees for areas south each afternoon through Saturday.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Aug 6, 2:59 PM CDT, 42 minutes before
Special Weather Statement
National Weather Service Birmingham AL
259 PM CDT Sun Aug 6 2023

ALZ017-024-026-062100-
Jefferson AL-St. Clair AL-Blount AL-
259 PM CDT Sun Aug 6 2023

...A strong thunderstorm will impact portions of southeastern Blount,
northeastern Jefferson and St. Clair Counties through 400 PM CDT...

At 259 PM CDT, Doppler radar was tracking a strong thunderstorm over
Springville, moving east at 25 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Trussville, Moody, Springville, Odenville, Dallas, Center Point,
Clay, Pinson, Margaret, Argo, Ashville, Riverside, Ragland,
Chalkville, Grayson Valley, Branchville, Inland Lake, Neely Henry
Lake, Logan Martin Lake and Highland Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
central, northeastern and east central Alabama.

&&

LAT...LON 3388 8611 3387 8610 3374 8609 3373 8611
      3371 8613 3371 8614 3367 8615 3368 8617
      3370 8618 3369 8620 3368 8620 3366 8618
      3363 8617 3362 8668 3387 8669 3390 8611
TIME...MOT...LOC 1959Z 266DEG 20KT 3375 8652

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

25/Owen
Special weather statement, Aug 6, 3:01 PM CDT, 40 minutes before
Special Weather Statement
National Weather Service Birmingham AL
301 PM CDT Sun Aug 6 2023

ALZ029-037-038-062030-
Tallapoosa AL-Randolph AL-Chambers AL-
301 PM CDT Sun Aug 6 2023

...Strong thunderstorms will impact portions of central Randolph,
east central Tallapoosa and northern Chambers Counties through 330 PM
CDT...

At 301 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Bowdon to near West Chambers. 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...
Roanoke, Wedowee, Lafayette, Stroud, La Fayette, Wadley, Woodland,
Lakeview, Five Points, Post Oak Forks, Denson, Amity Park, Abanda,
Standing Rock, Welch, Trammel Crossroads, Ridge Grove, Buffalo,
Fredonia and Veasey Creek Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
east central Alabama.

&&

LAT...LON 3287 8571 3349 8540 3350 8535 3348 8530
      3288 8519
TIME...MOT...LOC 2001Z 275DEG 34KT 3357 8526 3287 8551

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

25/Owen
Special weather statement, Aug 6, 3:02 PM CDT, 39 minutes before
Special Weather Statement
National Weather Service Birmingham AL
302 PM CDT Sun Aug 6 2023

ALZ025-027-035-036-062030-
Chilton AL-Shelby AL-Talladega AL-Coosa AL-
302 PM CDT Sun Aug 6 2023

...A strong thunderstorm will impact portions of northeastern
Chilton, southwestern Talladega, southeastern Shelby and northwestern
Coosa Counties through 330 PM CDT...

At 302 PM CDT, Doppler radar was tracking a strong thunderstorm near
Columbiana, moving east at 30 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...
Sylacauga, Calera, Columbiana, Wilsonville, Talladega Springs, Oak
Grove, Strickland Crossroads, Marble Valley, Fayetteville, Unity, Lay
Lake, Moriah, Shelby, Alabama 4H Center, Shelby Shores, Waxahatchee
Creek, Gantts Quarry, Highway 145 and CR 46, Paint Creek and Kelley
Branch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
central and east central Alabama.

&&

LAT...LON 3303 8676 3321 8673 3320 8628 3293 8633
TIME...MOT...LOC 2002Z 278DEG 24KT 3311 8663

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

25/Owen
Special weather statement, Aug 6, 3:13 PM CDT, 28 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>
Special weather statement, Aug 6, 3:36 PM CDT, 5 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>
Local storm report, Aug 6, 3:41 PM CDT, 0 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>

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 7:07 PM CDTSevere Thunderstorm WarningBMXLamar, Marion53 min
Aug 5, 7:14 PM CDTSevere Thunderstorm WarningBMXMarion46 min
Aug 5, 7:15 PM CDTSevere Thunderstorm WarningBMXGreene, Pickens, Sumter60 min
Aug 5, 7:29 PM CDTSevere Thunderstorm Warning Considerable damage threatBMXWalker, Winston61 min
Aug 5, 7:49 PM CDTSpecial Weather StatementBMXMarion56 min
Aug 5, 7:53 PM CDTSevere Thunderstorm WarningBMXWalker, Winston44 min
Aug 5, 8:02 PM CDTSevere Thunderstorm WarningBMXGreene, Hale, Sumter58 min
Aug 5, 8:41 PM CDTSpecial Weather StatementBMXLamar34 min
Aug 5, 8:58 PM CDTSevere Thunderstorm WarningBMXGreene34 min
Aug 5, 9:12 PM CDTSpecial Weather StatementBMXFayette63 min
Aug 5, 9:26 PM CDTSevere Thunderstorm WarningBMXFayette, Tuscaloosa, Walker64 min
Aug 5, 11:01 PM CDTSpecial Weather StatementBMXGreene29 min
Aug 6, 3:00 AM CDTExcessive Heat WarningBMXAutauga, Barbour, Bibb, Bullock, Chilton, Coosa and 19 more18 hr
Aug 6, 3:00 AM CDTHeat AdvisoryBMXAutauga, Barbour, Bibb, Chilton, Coosa, Dallas and 16 more31 hr
Aug 6, 11:45 AM CDTSpecial Weather StatementBMXCleburne30 min
Aug 6, 12:38 PM CDTSpecial Weather StatementBMXPike52 min
Aug 6, 1:14 PM CDTSevere Thunderstorm WarningBMXFayette, Lamar, Marion76 min
Aug 6, 1:15 PM CDTSpecial Weather StatementBMXCherokee45 min
Aug 6, 1:34 PM CDTSpecial Weather StatementBMXTuscaloosa41 min
Aug 6, 1:38 PM CDTSpecial Weather StatementBMXDeKalb37 min
Aug 6, 1:39 PM CDTSevere Thunderstorm WarningBMXJefferson, Tuscaloosa, Walker49 min
Aug 6, 1:41 PM CDTSpecial Weather StatementBMXBarbour49 min
Aug 6, 1:47 PM CDTSpecial Weather StatementBMXPickens43 min
Aug 6, 1:53 PM CDTSevere Thunderstorm WarningBMXFayette, Lamar, Pickens, Tuscaloosa82 min
Aug 6, 1:53 PM CDTSevere Thunderstorm WarningBMXBarbour35 min
Aug 6, 1:58 PM CDTSpecial Weather StatementBMXCherokee32 min
Aug 6, 2:00 PM CDTSevere Thunderstorm Warning Considerable damage threatBMXWinston60 min
Aug 6, 2:09 PM CDTSevere Thunderstorm Warning Considerable damage threatBMXWalker66 min
Aug 6, 2:18 PM CDTSpecial Weather StatementBMXElmore42 min
Aug 6, 2:23 PM CDTSpecial Weather StatementBMXJefferson, Shelby52 min
Aug 6, 2:27 PM CDTSpecial Weather StatementBMXRandolph33 min
Aug 6, 2:32 PM CDTSpecial Weather StatementBMXRandolph28 min
Aug 6, 2:35 PM CDTSpecial Weather StatementBMXShelby25 min
Aug 6, 2:37 PM CDTSpecial Weather StatementBMXPike53 min
Aug 6, 2:37 PM CDTSevere Thunderstorm WarningBMXJefferson, Shelby68 min
Aug 6, 2:40 PM CDTSevere Thunderstorm WarningBMXGreene, Hale, Pickens, Sumter, Tuscaloosa80 min
Aug 6, 2:47 PM CDTSpecial Weather StatementBMXTalladega28 min
Aug 6, 2:53 PM CDTSevere Thunderstorm WarningBMXChambers, Lee, Macon, Tallapoosa52 min
Aug 6, 2:59 PM CDTSpecial Weather StatementBMXSt. Clair61 min
Aug 6, 2:59 PM CDTSevere Thunderstorm WarningBMXJefferson, Tuscaloosa76 min
Aug 6, 3:01 PM CDTSpecial Weather StatementBMXChambers, Randolph29 min
Aug 6, 3:02 PM CDTSpecial Weather StatementBMXShelby28 min
Aug 6, 3:05 PM CDTSevere Thunderstorm WarningBMXCalhoun, Coosa, St. Clair, Shelby, Talladega70 min
Aug 6, 3:09 PM CDTSevere Thunderstorm WarningBMXBlount50 min
Aug 6, 3:13 PM CDTSpecial Weather StatementBMXClay47 min
Aug 6, 3:36 PM CDTSpecial Weather StatementBMXPike39 min
Aug 6, 3:36 PM CDTSevere Thunderstorm WarningBMXCalhoun, Clay, Cleburne, Tallapoosa69 min
Aug 6, 3:38 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee, Etowah, St. Clair67 min
Aug 6, 3:45 PM CDTSevere Thunderstorm WarningBMXLee, Macon, Russell42 min
Aug 6, 3:56 PM CDTSevere Thunderstorm WarningBMXCleburne, Randolph63 min
Aug 6, 4:17 PM CDTSevere Thunderstorm WarningBMXTallapoosa58 min
Aug 6, 4:25 PM CDTSevere Thunderstorm WarningBMXChilton, Coosa, Shelby, Talladega65 min
Aug 6, 4:36 PM CDTSpecial Weather StatementBMXChambers54 min
Aug 6, 5:08 PM CDTSevere Thunderstorm WarningBMXCoosa, Elmore, Tallapoosa50 min
Aug 6, 5:12 PM CDTSpecial Weather StatementBMXAutauga63 min
Aug 6, 5:35 PM CDTSevere Thunderstorm WarningBMXElmore, Lee, Macon70 min
Aug 6, 5:36 PM CDTSpecial Weather StatementBMXPike54 min
Aug 6, 5:40 PM CDTSpecial Weather StatementBMXMontgomery65 min
Aug 6, 5:43 PM CDTSevere Thunderstorm WarningBMXPike34 min
Aug 6, 5:45 PM CDTSpecial Weather StatementBMXChambers60 min
Aug 6, 6:16 PM CDTSevere Thunderstorm WarningBMXBarbour, Bullock, Lee, Russell59 min
Aug 6, 6:35 PM CDTSevere Thunderstorm WarningBMXBarbour40 min
Aug 6, 6:44 PM CDTSevere Thunderstorm WarningBMXBarbour, Bullock, Montgomery, Pike, Russell54 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.