Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 113, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at May 9, 2021, 7:59 PM CDT for Lamar County, Marion County, Alabama. It was in force for 45 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
- May 9, 2021, 7:59 PM CDT (00:59 UTC)
- Expired
- May 9, 2021, 8:44 PM CDT
- In force
- 45 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Lamar County, AL, Marion County, AL
The radar
The Columbus AFB radar (KGWX), 30 km from the middle of the area, began a volume at 01:01 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 9, 7:29 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 1.0 hours before the alert went out and 158 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
- 436 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 1408 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.9
The text
As transmitted.
671 WUUS54 KBMX 100059 SVRBMX ALC075-093-100200- /O.NEW.KBMX.SV.W.0113.210510T0059Z-210510T0200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Birmingham AL 759 PM CDT Sun May 9 2021 The National Weather Service in Birmingham has issued a * Severe Thunderstorm Warning for... Western Marion County in northwestern Alabama... Northern Lamar County in west central Alabama... * Until 900 PM CDT. * At 759 PM CDT, severe thunderstorms were located along a line extending from near Evergreen to near Amory to near Aberdeen, moving southeast at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Hamilton, Vernon, Sulligent, Detroit, Beaverton, Blooming Grove, Lamar County Airport, Weston, Crews, Bedford, Gattman, Henson Springs, Shottsville, Lamar County Public Lake, Rankin Fite Airport, Byrd, Pine Springs, Bexar, Marion County Public Lake and Pikeville. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3432 8817 3431 8795 3371 8795 3376 8825 TIME...MOT...LOC 0059Z 300DEG 44KT 3419 8844 3401 8845 3389 8857 HAIL...<.75IN WIND...60MPH $$ 89^GSatterwhite
2 follow-up statements
570
WWUS54 KBMX 100110
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
810 PM CDT Sun May 9 2021
ALC075-093-100200-
/O.CON.KBMX.SV.W.0113.000000T0000Z-210510T0200Z/
Marion AL-Lamar AL-
810 PM CDT Sun May 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR WESTERN MARION AND NORTHERN LAMAR COUNTIES...
At 809 PM CDT, severe thunderstorms were located along a line
extending from near Tremont to 7 miles east of Aberdeen, moving east
at 45 mph.
HAZARD...60 mph wind gusts. These storms have caused wind damage in
Mississippi.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Hamilton, Vernon, Sulligent, Detroit, Beaverton, Blooming Grove,
Lamar County Airport, Weston, Crews, Bedford, Gattman, Henson
Springs, Shottsville, Lamar County Public Lake, Rankin Fite Airport,
Byrd, Pine Springs, Bexar, Marion County Public Lake and Pikeville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3432 8817 3431 8795 3371 8795 3376 8825
TIME...MOT...LOC 0109Z 284DEG 40KT 3419 8824 3382 8843
HAIL...<.75IN
WIND...60MPH
$$
89^GSatterwhite195
WWUS54 KBMX 100144
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
844 PM CDT Sun May 9 2021
ALC075-093-100153-
/O.CAN.KBMX.SV.W.0113.000000T0000Z-210510T0200Z/
Marion AL-Lamar AL-
844 PM CDT Sun May 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MARION AND NORTHERN
LAMAR COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits. Therefore, the warning has been cancelled. However gusty
winds and heavy rain are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
northwestern and west central Alabama.
LAT...LON 3432 8817 3431 8795 3371 8795 3376 8825
TIME...MOT...LOC 0142Z 300DEG 44KT 3398 8782 3362 8801
$$
89^GSatterwhiteThe office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 8:30 PM CDT | Special Weather Statement | BMX | Fayette, Marion | 45 min |
| May 9, 8:31 PM CDT | Special Weather Statement | BMX | Winston | 59 min |
| May 9, 8:46 PM CDT | Special Weather Statement | BMX | Pickens | 44 min |
| May 9, 9:06 PM CDT | Special Weather Statement | BMX | Walker | 54 min |
| May 9, 9:41 PM CDT | Special Weather Statement | BMX | Blount | 64 min |
| May 9, 10:22 PM CDT | Special Weather Statement | BMX | Etowah, St. Clair | 53 min |
| May 9, 10:56 PM CDT | Special Weather Statement | BMX | Calhoun, Cherokee, Cleburne | 64 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.