Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 266, NWS Birmingham, AL

July 2, 2023Jefferson County, St. Clair County, Shelby County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 2, 2023, 3:11 PM CDT for Jefferson County, St. Clair County, Shelby County, Alabama. It was in force for 49 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 2, 2023, 3:11 PM CDT (20:11 UTC)
Expired
Jul 2, 2023, 4:00 PM CDT
In force
49 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Jefferson County, AL, Shelby County, AL, St. Clair County, AL

The radar

The Birmingham radar (KBMX), 40 km from the middle of the area, began a volume at 20:14 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 2, 12:14 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.2 hours before the alert went out and 40 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 2023-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1738 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 2023-07-02The 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
1738 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
917 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
83 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 2, 3:08 PM CDT, 3 minutes earlier.

Area forecast discussion, Jul 2, 3:08 PM CDT, 3 minutes before
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Hazardous weather outlook, Jul 2, 12:03 PM CDT, 3 hours 8 minutes before
Hazardous Weather Outlook
National Weather Service Birmingham AL
1203 PM CDT Sun Jul 2 2023

ALZ011>015-017>050-032015-
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-
1203 PM CDT Sun Jul 2 2023

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

.DAY ONE...Outlook through Tonight.

Strong to severe thunderstorms are possible this afternoon and
evening through 10pm. The main concern will be damaging winds and
hail.

Hot and humid conditions are expected again today with heat indices
of 105 to near 110 possible.

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

Hot and humid conditions are forecast to continue through midweek.
Heat index values during the afternoon are expected to reach or
exceed 105 degrees.

Severe storms are possible across all of Central Alabama during the
afternoon and evening hours on Monday and Tuesday. Threats include
damaging winds up to 60 mph and quarter size hail.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Jul 2, 2:00 PM CDT, 1 hour 11 minutes before
Special Weather Statement
National Weather Service Birmingham AL
200 PM CDT Sun Jul 2 2023

ALZ014-015-021930-
Walker AL-Winston AL-
200 PM CDT Sun Jul 2 2023

...A strong thunderstorm will impact portions of northeastern Walker
and southeastern Winston Counties through 230 PM CDT...

At 200 PM CDT, Doppler radar was tracking a strong thunderstorm near
Curry, or 8 miles south of Arley, moving east at 25 mph.

HAZARD...Winds in excess of 40 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...
Curry, Smith Dam, Smith Lake, Bear Branch, Maple Branch, Raccoon
Branch, Powellville, Wilson Bend, Battle Branch, Duncan Bridge,
Little Dismal Creek and Devils Branch.

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 800 PM CDT for
central and northwestern Alabama.

&&

LAT...LON 3399 8711 3399 8715 3398 8714 3397 8714
      3396 8711 3394 8710 3393 8709 3391 8708
      3389 8722 3401 8727 3405 8711
TIME...MOT...LOC 1900Z 261DEG 21KT 3398 8716

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

56
Special weather statement, Jul 2, 2:02 PM CDT, 1 hour 9 minutes before
Special Weather Statement
National Weather Service Birmingham AL
202 PM CDT Sun Jul 2 2023

ALZ013-021945-
Fayette AL-
202 PM CDT Sun Jul 2 2023

...A strong thunderstorm will impact portions of northeastern Fayette
County through 245 PM CDT...

At 202 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles south of Glen Allen, or 10 miles southeast of Winfield, moving
east at 15 mph.

HAZARD...Winds in excess of 40 mph and half inch 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...
Fowlers Crossroads and Hubbertville.

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 800 PM CDT for
central and west central Alabama.

&&

LAT...LON 3390 8764 3388 8763 3387 8764 3387 8753
      3375 8753 3373 8777 3386 8778
TIME...MOT...LOC 1902Z 261DEG 15KT 3381 8770

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

56
Special weather statement, Jul 2, 2:17 PM CDT, 54 minutes before
Special Weather Statement
National Weather Service Birmingham AL
217 PM CDT Sun Jul 2 2023

ALZ024-022000-
Jefferson AL-
217 PM CDT Sun Jul 2 2023

...A strong thunderstorm will impact portions of southern Jefferson
County through 300 PM CDT...

At 217 PM CDT, Doppler radar was tracking a strong thunderstorm over
southwestern Birmingham, moving east at 10 mph.

HAZARD...Wind gusts up to 50 mph and half inch 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...
Birmingham, Hoover, Vestavia Hills, Bessemer, Homewood, Mountain
Brook, Hueytown, Irondale, Fairfield, Fultondale, Pleasant Grove,
Tarrant, Midfield, Adamsville, Brighton, Lipscomb, Sylvan Springs,
Mulga, Maytown and North Johns.

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 800 PM CDT for
central and west central Alabama.

&&

LAT...LON 3347 8664 3347 8667 3345 8668 3345 8669
      3344 8670 3330 8712 3331 8713 3331 8716
      3332 8716 3332 8718 3334 8718 3334 8720
      3336 8720 3336 8721 3339 8723 3344 8728
      3365 8675
TIME...MOT...LOC 1917Z 252DEG 9KT 3348 8689

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

56
Special weather statement, Jul 2, 2:21 PM CDT, 50 minutes before
Special Weather Statement
National Weather Service Birmingham AL
221 PM CDT Sun Jul 2 2023

ALZ023-022000-
Tuscaloosa AL-
221 PM CDT Sun Jul 2 2023

...A strong thunderstorm will impact portions of southeastern
Tuscaloosa County through 300 PM CDT...

At 221 PM CDT, Doppler radar was tracking a strong thunderstorm over
Coaling, or 8 miles east of Holt, moving east at 10 mph.

HAZARD...Wind gusts up to 50 mph and penny 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...
Brookwood, Coaling, Vance, Mercedes Benz Of Alabama, Lake Wildwood,
Abernant, North Bibb, East Brookwood, Camp Horne B.S.A., I 20 Rest
Area Near Tuscaloosa and Cedar Cove.

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 800 PM CDT for
central and west central Alabama.

&&

LAT...LON 3322 8742 3336 8720 3334 8720 3334 8718
      3332 8718 3332 8716 3324 8714 3323 8715
      3319 8720 3315 8720 3312 8738
TIME...MOT...LOC 1921Z 252DEG 9KT 3319 8734

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

56
Special weather statement, Jul 2, 2:53 PM CDT, 18 minutes before
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Local storm report, Jul 2, 3:10 PM CDT, 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 7:19 PM CDTSpecial Weather StatementBMXHale41 min
Jul 2, 12:26 PM CDTSpecial Weather StatementBMXJefferson34 min
Jul 2, 12:44 PM CDTSpecial Weather StatementBMXMarion46 min
Jul 2, 12:51 PM CDTSevere Thunderstorm WarningBMXMarion39 min
Jul 2, 1:26 PM CDTSpecial Weather StatementBMXTuscaloosa34 min
Jul 2, 1:28 PM CDTSpecial Weather StatementBMXFayette47 min
Jul 2, 1:32 PM CDTSpecial Weather StatementBMXSt. Clair43 min
Jul 2, 1:33 PM CDTSevere Thunderstorm WarningBMXTuscaloosa42 min
Jul 2, 1:37 PM CDTSevere Thunderstorm WarningBMXMarion, Winston24 min
Jul 2, 1:49 PM CDTSpecial Weather StatementBMXMarengo41 min
Jul 2, 1:49 PM CDTSevere Thunderstorm WarningBMXCalhoun, St. Clair, Talladega56 min
Jul 2, 2:00 PM CDTSpecial Weather StatementBMXWalker30 min
Jul 2, 2:02 PM CDTSpecial Weather StatementBMXFayette43 min
Jul 2, 2:13 PM CDTSevere Thunderstorm WarningBMXEtowah, St. Clair47 min
Jul 2, 2:17 PM CDTSpecial Weather StatementBMXJefferson43 min
Jul 2, 2:20 PM CDTAreal Flood AdvisoryBMXCalhoun, St. Clair, Talladega115 min
Jul 2, 2:21 PM CDTSpecial Weather StatementBMXTuscaloosa39 min
Jul 2, 2:39 PM CDTFlash Flood WarningBMXSt. Clair, Talladega3 hr
Jul 2, 2:44 PM CDTAreal Flood AdvisoryBMXEtowah115 min
Jul 2, 2:53 PM CDTSpecial Weather StatementBMXWalker52 min
Jul 2, 3:14 PM CDTSpecial Weather StatementBMXCherokee31 min
Jul 2, 3:24 PM CDTSpecial Weather StatementBMXBlount36 min
Jul 2, 3:36 PM CDTSpecial Weather StatementBMXMarion39 min
Jul 2, 3:38 PM CDTSpecial Weather StatementBMXTalladega37 min
Jul 2, 3:40 PM CDTSpecial Weather StatementBMXPike50 min
Jul 2, 3:56 PM CDTSpecial Weather StatementBMXDallas, Marengo79 min
Jul 2, 3:56 PM CDTSevere Thunderstorm WarningBMXShelby, Talladega64 min
Jul 2, 3:59 PM CDTSpecial Weather StatementBMXCleburne46 min
Jul 2, 4:02 PM CDTSpecial Weather StatementBMXWinston43 min
Jul 2, 4:06 PM CDTSevere Thunderstorm WarningBMXClay, Cleburne, Randolph54 min
Jul 2, 4:20 PM CDTSpecial Weather StatementBMXBarbour, Bullock, Pike25 min
Jul 2, 4:25 PM CDTSpecial Weather StatementBMXCoosa50 min
Jul 2, 4:29 PM CDTSevere Thunderstorm WarningBMXClay, Coosa, Talladega31 min
Jul 2, 4:31 PM CDTSevere Thunderstorm WarningBMXRandolph59 min
Jul 2, 4:35 PM CDTSpecial Weather StatementBMXShelby25 min
Jul 2, 4:47 PM CDTSpecial Weather StatementBMXCoosa43 min
Jul 2, 4:48 PM CDTSpecial Weather StatementBMXBullock57 min
Jul 2, 5:01 PM CDTSpecial Weather StatementBMXTallapoosa44 min
Jul 2, 5:08 PM CDTSpecial Weather StatementBMXSumter37 min
Jul 2, 5:34 PM CDTSpecial Weather StatementBMXElmore41 min
Jul 2, 5:39 PM CDTSpecial Weather StatementBMXWalker36 min
Jul 2, 5:42 PM CDTSpecial Weather StatementBMXSumter48 min
Jul 2, 5:44 PM CDTSpecial Weather StatementBMXLowndes, Montgomery61 min
Jul 2, 5:48 PM CDTSpecial Weather StatementBMXLee, Russell42 min
Jul 2, 6:14 PM CDTSevere Thunderstorm WarningBMXMontgomery46 min
Jul 2, 6:20 PM CDTSpecial Weather StatementBMXChilton40 min
Jul 2, 6:31 PM CDTSevere Thunderstorm WarningBMXElmore44 min
Jul 2, 6:46 PM CDTSpecial Weather StatementBMXLee44 min
Jul 2, 6:53 PM CDTSevere Thunderstorm WarningBMXCoosa, Elmore, Tallapoosa38 min
Jul 2, 6:56 PM CDTSpecial Weather StatementBMXTuscaloosa49 min
Jul 2, 6:57 PM CDTSpecial Weather StatementBMXSumter48 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.