Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 131, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 30, 2021, 7:45 PM CDT for Cherokee County, Etowah County, Alabama. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 30, 2021, 7:45 PM CDT (00:45 UTC)
- Expired
- Jul 30, 2021, 8:16 PM CDT
- In force
- 31 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cherokee County, AL, Etowah County, AL
The radar
The Northeast Alabama radar (KHTX), 92 km from the middle of the area, began a volume at 00:45 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 00:00Z, 0.8 hours before the alert went out and 131 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.
- Mixed-layer CAPE
- 2302 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1114 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
448
WUUS54 KBMX 310045
SVRBMX
ALC019-055-310130-
/O.NEW.KBMX.SV.W.0131.210731T0045Z-210731T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
745 PM CDT Fri Jul 30 2021
The National Weather Service in Birmingham has issued a
* Severe Thunderstorm Warning for...
Etowah County in northeastern Alabama...
Southwestern Cherokee County in northeastern Alabama...
* Until 830 PM CDT.
* At 744 PM CDT, severe thunderstorms were located along a line
extending from Cherokee Rock Village to 6 miles east of McLarty,
moving southeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Gadsden, Rainbow City, Attalla, Hokes Bluff, Centre, Centre
Municipal Airport, Glencoe, Sardis City, Leesburg, Walnut Grove,
Reece City, Sand Rock, Tennala, Tabor Road, Cherokee Rock Village,
Aurora, Pleasant Gap, Ballplay, Slackland and Gadsden Mall.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 3398 8550 3397 8574 3396 8574 3395 8616
3398 8619 3399 8621 3408 8632 3418 8619
3419 8611 3420 8610 3420 8584 3424 8584
3424 8581 3426 8581 3426 8577 3429 8573
TIME...MOT...LOC 0044Z 323DEG 25KT 3420 8582 3418 8630
HAIL...<.75IN
WIND...60MPH
$$
CBD2 follow-up statements
895
WWUS54 KBMX 310106
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
806 PM CDT Fri Jul 30 2021
ALC019-055-310130-
/O.CON.KBMX.SV.W.0131.000000T0000Z-210731T0130Z/
Etowah AL-Cherokee AL-
806 PM CDT Fri Jul 30 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR NORTHERN ETOWAH AND SOUTHWESTERN CHEROKEE COUNTIES...
At 806 PM CDT, severe thunderstorms were located along a line
extending from Cherokee Rock Village to near Walnut Grove, moving
southeast at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Gadsden, Attalla, Centre, Centre Municipal Airport, Sardis City,
Leesburg, Walnut Grove, Reece City, Sand Rock, Tennala, Tabor Road,
Cherokee Rock Village, Aurora, Ballplay, Slackland, Western Weiss
Lake, Noccalula Falls, Moshat, Weiss Dam and Yellow Creek Falls.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3399 8621 3408 8632 3418 8619 3419 8611
3420 8610 3420 8584 3424 8584 3424 8581
3426 8581 3426 8577 3429 8573 3409 8558
3405 8577 3398 8619
TIME...MOT...LOC 0106Z 330DEG 17KT 3419 8581 3411 8625
HAIL...<.75IN
WIND...60MPH
$$087
WWUS54 KBMX 310116
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
816 PM CDT Fri Jul 30 2021
ALC019-055-310126-
/O.CAN.KBMX.SV.W.0131.000000T0000Z-210731T0130Z/
Etowah AL-Cherokee AL-
816 PM CDT Fri Jul 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ETOWAH AND
SOUTHWESTERN CHEROKEE COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with these thunderstorms.
LAT...LON 3399 8621 3408 8632 3418 8619 3419 8611
3420 8610 3420 8584 3424 8584 3424 8581
3426 8581 3426 8577 3429 8573 3409 8558
3405 8577 3398 8619
TIME...MOT...LOC 0113Z 323DEG 25KT 3415 8577 3407 8621
$$The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 7:07 PM CDT | Special Weather Statement | BMX | Winston | 38 min |
| Jul 30, 7:51 PM CDT | Severe Thunderstorm Warning | BMX | Blount | 39 min |
| Jul 31, 2:25 PM CDT | Special Weather Statement | BMX | Russell | 50 min |
| Jul 31, 2:26 PM CDT | Special Weather Statement | BMX | St. Clair | 49 min |
| Jul 31, 2:28 PM CDT | Special Weather Statement | BMX | Chilton | 47 min |
| Jul 31, 2:29 PM CDT | Special Weather Statement | BMX | Dallas | 46 min |
| Jul 31, 2:44 PM CDT | Special Weather Statement | BMX | Shelby | 46 min |
| Jul 31, 2:47 PM CDT | Special Weather Statement | BMX | Jefferson, Walker | 43 min |
| Jul 31, 2:56 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Jefferson, Walker | 49 min |
| Jul 31, 3:04 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, St. Clair, Talladega | 41 min |
| Jul 31, 3:09 PM CDT | Special Weather Statement | BMX | Chilton | 51 min |
| Jul 31, 3:11 PM CDT | Special Weather Statement | BMX | Russell | 34 min |
| Jul 31, 3:23 PM CDT | Special Weather Statement | BMX | Coosa | 37 min |
| Jul 31, 3:34 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Shelby | 41 min |
| Jul 31, 3:38 PM CDT | Severe Thunderstorm Warning | BMX | Chilton, Coosa, Shelby, Talladega | 52 min |
| Jul 31, 3:41 PM CDT | Special Weather Statement | BMX | Talladega | 34 min |
| Jul 31, 3:57 PM CDT | Special Weather Statement | BMX | Shelby | 33 min |
| Jul 31, 3:59 PM CDT | Special Weather Statement | BMX | Elmore, Montgomery | 46 min |
| Jul 31, 4:12 PM CDT | Special Weather Statement | BMX | Clay, Randolph | 48 min |
| Jul 31, 4:18 PM CDT | Special Weather Statement | BMX | Chambers | 42 min |
| Jul 31, 4:22 PM CDT | Special Weather Statement | BMX | Tallapoosa | 53 min |
| Jul 31, 4:45 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 45 min |
| Jul 31, 4:49 PM CDT | Special Weather Statement | BMX | Bibb | 41 min |
| Jul 31, 5:00 PM CDT | Special Weather Statement | BMX | Lee | 60 min |
| Jul 31, 6:36 PM CDT | Special Weather Statement | BMX | Barbour, Russell | 39 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning in 2021
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.