Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 138, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Aug 1, 2021, 9:11 PM CDT for Marengo 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 outline as issued.
The facts
- Issued
- Aug 1, 2021, 9:11 PM CDT (02:11 UTC)
- Expired
- Aug 1, 2021, 10:00 PM CDT
- In force
- 49 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Marengo County, AL
The radar
The Birmingham radar (KBMX), 139 km from the middle of the area, began a volume at 02:14 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 nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 2.2 hours before the alert went out and 139 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
- 941 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1260 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
521
WUUS54 KBMX 020211
SVRBMX
ALC091-020300-
/O.NEW.KBMX.SV.W.0138.210802T0211Z-210802T0300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
911 PM CDT Sun Aug 1 2021
The National Weather Service in Birmingham has issued a
* Severe Thunderstorm Warning for...
Central Marengo County in southwestern Alabama...
* Until 1000 PM CDT.
* At 910 PM CDT, severe thunderstorms were located along a line
extending from Myrtlewood to Consul, moving south at 10 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Linden, Thomaston, Sweet Water, Myrtlewood, Freddie Jones Field,
Miller, Consul, Magnolia, Calvary, Half Acre and Octagon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3217 8801 3227 8801 3230 8800 3231 8798
3230 8797 3231 8795 3228 8794 3231 8793
3232 8794 3232 8752 3231 8752 3231 8747
3227 8747 3227 8751 3225 8752 3213 8752
3213 8762 3211 8762 3212 8804
TIME...MOT...LOC 0210Z 010DEG 7KT 3225 8793 3225 8755
HAIL...<.75IN
WIND...60MPH
$$
32/Davis1 follow-up statement
775
WWUS54 KBMX 020239
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
939 PM CDT Sun Aug 1 2021
ALC091-020300-
/O.CON.KBMX.SV.W.0138.000000T0000Z-210802T0300Z/
Marengo AL-
939 PM CDT Sun Aug 1 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR CENTRAL MARENGO COUNTY...
At 939 PM CDT, severe thunderstorms were located along a line
extending from Myrtlewood to near Consul, and are nearly stationary.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Linden, Thomaston, Sweet Water, Myrtlewood, Freddie Jones Field,
Miller, Consul, Magnolia, Calvary, Half Acre and Octagon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3217 8801 3227 8801 3230 8800 3231 8798
3230 8797 3231 8795 3228 8794 3231 8793
3232 8794 3232 8752 3231 8752 3231 8747
3227 8747 3227 8751 3225 8752 3213 8752
3213 8762 3211 8762 3212 8804
TIME...MOT...LOC 0239Z 039DEG 4KT 3224 8794 3224 8756
HAIL...<.75IN
WIND...60MPH
$$
32/DavisThe office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 8:47 PM CDT | Special Weather Statement | BMX | Marengo | 43 min |
| Aug 1, 9:25 PM CDT | Special Weather Statement | BMX | Dallas | 50 min |
| Aug 1, 9:31 PM CDT | Areal Flood Advisory | BMX | Marengo | 3 hr |
| Aug 1, 10:02 PM CDT | Special Weather Statement | BMX | Marengo | 43 min |
| Aug 1, 11:08 PM CDT | Special Weather Statement | BMX | Sumter | 52 min |
| Aug 2, 12:24 AM CDT | Special Weather Statement | BMX | Hale | 51 min |
| Aug 2, 1:15 AM CDT | Special Weather Statement | BMX | Montgomery | 30 min |
| Aug 2, 11:37 AM CDT | Special Weather Statement | BMX | Marengo | 38 min |
| Aug 2, 1:52 PM CDT | Special Weather Statement | BMX | Bullock | 38 min |
| Aug 2, 2:56 PM CDT | Special Weather Statement | BMX | Montgomery | 34 min |
| Aug 2, 3:13 PM CDT | Special Weather Statement | BMX | Montgomery | 32 min |
| Aug 2, 3:29 PM CDT | Severe Thunderstorm Warning | BMX | Elmore, Macon, Montgomery | 25 min |
| Aug 2, 4:18 PM CDT | Special Weather Statement | BMX | Russell | 27 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.