Alert archive / Alabama / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 21, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at May 9, 2024, 7:57 AM CDT for Blount County, Alabama. It was in force for 48 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 9, 2024, 7:57 AM CDT (12:57 UTC)
- Expired
- May 9, 2024, 8:45 AM CDT
- In force
- 48 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Blount County, AL
The radar
The Birmingham radar (KBMX), 88 km from the middle of the area, began a volume at 12:59 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 9, 8:15 AM CDT | TSTM WND DMG | 5 Ene Blountsville, AL | A fallen tree near Highway 79 and Martin Rd resulted in a traffic accident. |
| May 9, 8:19 AM CDT | TSTM WND DMG | 2 Sw Blount Springs, AL | A few trees down in the Hayden and Smoke Rise areas. |
| May 9, 8:30 AM CDT | HAIL 0.7 | 1 Ne Locust Fork, AL | Dime-size hail reported in the Locust Fork area. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 9, 3:02 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 1.0 hours before the alert went out and 87 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
- 1618 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 619 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 178 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 10.4
The text
As transmitted.
774
WUUS54 KBMX 091257
SVRBMX
ALC009-091345-
/O.NEW.KBMX.SV.W.0021.240509T1257Z-240509T1345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
757 AM CDT Thu May 9 2024
The National Weather Service in Birmingham has issued a
* Severe Thunderstorm Warning for...
Blount County in central Alabama...
* Until 845 AM CDT.
* At 757 AM CDT, severe thunderstorms were located along a line
extending from 9 miles west of Arab to near Smith Dam, moving east
at 60 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Oneonta, Blountsville, Cleveland, Dallas, Locust Fork, Altoona,
Snead, Susan Moore, Walnut Grove, Trafford, Allgood, Fairview,
Hayden, Nectar, Rosa, County Line, McLarty, Bangor, Strawberry, and
Blount Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 1000 AM CDT for central and
northeastern Alabama.
&&
LAT...LON 3410 8630 3394 8637 3393 8633 3389 8634
3382 8643 3380 8657 3378 8658 3379 8668
3384 8676 3384 8688 3382 8695 3386 8696
3387 8692 3390 8693 3397 8677 3405 8668
3409 8669 3412 8660 3426 8649 3426 8645
TIME...MOT...LOC 1257Z 281DEG 50KT 3431 8667 3399 8706
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
56The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 5:30 AM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 60 min |
| May 9, 5:58 AM CDT | Special Weather Statement | BMX | Blount, Etowah | 62 min |
| May 9, 6:28 AM CDT | Special Weather Statement | BMX | Cherokee | 47 min |
| May 9, 6:43 AM CDT | Special Weather Statement | BMX | Marion | 47 min |
| May 9, 7:04 AM CDT | Special Weather Statement | BMX | Randolph | 41 min |
| May 9, 7:18 AM CDT | Special Weather Statement | BMX | Winston | 42 min |
| May 9, 7:32 AM CDT | Special Weather Statement | BMX | Tallapoosa | 43 min |
| May 9, 7:48 AM CDT | Special Weather Statement | BMX | Randolph | 42 min |
| May 9, 8:05 AM CDT | Severe Thunderstorm Warning | BMX | Coosa, Elmore, Tallapoosa | 55 min |
| May 9, 8:21 AM CDT | Special Weather Statement | BMX | Jefferson | 39 min |
| May 9, 8:27 AM CDT | Severe Thunderstorm Warning | BMX | Etowah, St. Clair | 48 min |
| May 9, 8:31 AM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 44 min |
| May 9, 8:41 AM CDT | Special Weather Statement | BMX | Chambers | 49 min |
| May 9, 8:44 AM CDT | Special Weather Statement | BMX | Lee | 31 min |
| May 9, 8:48 AM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 42 min |
| May 9, 8:57 AM CDT | Areal Flood Advisory | BMX | Blount, Etowah, St. Clair | 2 hr |
| May 9, 8:57 AM CDT | Severe Thunderstorm Warning | BMX | Calhoun, St. Clair, Shelby, Talladega | 63 min |
| May 9, 9:29 AM CDT | Special Weather Statement | BMX | Clay, Cleburne, Randolph | 46 min |
| May 9, 9:39 AM CDT | Special Weather Statement | BMX | Tallapoosa | 51 min |
| May 9, 9:46 AM CDT | Severe Thunderstorm Warning | BMX | Clay, Cleburne, Randolph | 59 min |
| May 9, 10:05 AM CDT | Areal Flood Advisory | BMX | Clay, Randolph, Tallapoosa | 115 min |
| May 9, 10:19 AM CDT | Special Weather Statement | BMX | Chambers, Tallapoosa | 56 min |
| May 9, 10:38 AM CDT | Special Weather Statement | BMX | Clay | 52 min |
| May 9, 10:53 AM CDT | Flash Flood Warning | BMX | Clay, Talladega | 3 hr |
| May 9, 11:12 AM CDT | Special Weather Statement | BMX | Coosa | 33 min |
| May 9, 11:18 AM CDT | Special Weather Statement | BMX | Lee | 27 min |
| May 9, 11:19 AM CDT | Areal Flood Advisory | BMX | Coosa, Tallapoosa | 3 hr |
| May 9, 11:48 AM CDT | Special Weather Statement | BMX | Coosa | 27 min |
| May 9, 11:52 AM CDT | Special Weather Statement | BMX | Montgomery | 23 min |
| May 9, 12:13 PM CDT | Special Weather Statement | BMX | Bullock | 32 min |
| May 9, 4:57 PM CDT | Special Weather Statement | BMX | Shelby | 48 min |
| May 9, 5:35 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 55 min |
| May 9, 6:04 PM CDT | Special Weather Statement | BMX | Talladega | 41 min |
| May 9, 6:06 PM CDT | Special Weather Statement | BMX | Coosa | 39 min |
| May 9, 6:12 PM CDT | Special Weather Statement | BMX | Talladega | 33 min |
| May 9, 6:14 PM CDT | Severe Thunderstorm Warning | BMX | Lamar, Pickens | 46 min |
| May 9, 6:30 PM CDT | Special Weather Statement | BMX | St. Clair | 30 min |
| May 9, 6:43 PM CDT | Severe Thunderstorm Warning | BMX | Greene, Pickens, Sumter | 47 min |
| May 9, 6:45 PM CDT | Special Weather Statement | BMX | Walker | 45 min |
| May 9, 6:48 PM CDT | Severe Thunderstorm Warning | BMX | Lamar | 42 min |
| May 9, 6:55 PM CDT | Special Weather Statement | BMX | Coosa | 50 min |
| May 9, 6:58 PM CDT | Severe Thunderstorm Warning | BMX | Pickens | 47 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2024Every severe thunderstorm warning in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.