Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 188, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 11, 2021, 7:01 PM CDT for Butler County, Covington County, Crenshaw County, Alabama. It was in force for 44 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 11, 2021, 7:01 PM CDT (00:01 UTC)
- Expired
- Aug 11, 2021, 7:45 PM CDT
- In force
- 44 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Butler County, AL, Covington County, AL, Crenshaw County, AL
The radar
The Ft Rucker radar (KEOX), 83 km from the middle of the area, began a volume at 00:04 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, 0.0 hours before the alert went out and 186 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
- 71 J/kg
- Mixed-layer CIN
- -232 J/kg
- Mixed-layer LCL
- 1550 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
990
WUUS54 KMOB 120001
SVRMOB
ALC013-039-041-120045-
/O.NEW.KMOB.SV.W.0188.210812T0001Z-210812T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
701 PM CDT Wed Aug 11 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Southeastern Butler County in south central Alabama...
Southern Crenshaw County in south central Alabama...
Northern Covington County in south central Alabama...
* Until 745 PM CDT.
* At 700 PM CDT, severe thunderstorms were located along a line
extending from 3 miles southeast of Georgiana to 5 miles north of
Elba, moving north at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Brantley, McKenzie and Dozier.
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.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3154 8616 3153 8616 3153 8620 3136 8620
3149 8670 3152 8670 3152 8676 3172 8657
3163 8618 3162 8618 3162 8615 3154 8614
TIME...MOT...LOC 0000Z 179DEG 9KT 3161 8670 3149 8611
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CGAL1 follow-up statement
583
WWUS54 KMOB 120041
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
741 PM CDT Wed Aug 11 2021
ALC013-039-041-120049-
/O.EXP.KMOB.SV.W.0188.000000T0000Z-210812T0045Z/
Butler AL-Crenshaw AL-Covington AL-
741 PM CDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BUTLER...SOUTHERN
CRENSHAW AND NORTHERN COVINGTON COUNTIES WILL EXPIRE AT 745 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However, gusty
winds and heavy rain are still possible with these thunderstorms.
Remember, a Severe Thunderstorm Warning still remains in effect for
Northeastern Butler and Crenshaw counties in south-central Alabama
until 815 PM CDT.
LAT...LON 3154 8616 3153 8616 3153 8620 3136 8620
3149 8670 3152 8670 3152 8676 3172 8657
3163 8618 3162 8618 3162 8615 3154 8614
TIME...MOT...LOC 0039Z 270DEG 9KT 3170 8669 3158 8610
$$
CGALThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 7:30 PM CDT | Severe Thunderstorm Warning | MOB | Butler, Crenshaw | 45 min |
| Aug 11, 7:46 PM CDT | Special Weather Statement | MOB | Crenshaw | 44 min |
| Aug 11, 7:47 PM CDT | Special Weather Statement | MOB | Conecuh | 43 min |
| Aug 11, 7:56 PM CDT | Areal Flood Advisory | MOB | Butler, Crenshaw | 3 hr |
| Aug 11, 8:01 PM CDT | Special Weather Statement | MOB | Butler | 44 min |
| Aug 11, 8:09 PM CDT | Flash Flood Warning | MOB | Butler | 3 hr |
| Aug 12, 9:42 AM CDT | Special Marine Warning | MOB | 63 min | |
| Aug 12, 12:31 PM CDT | Special Weather Statement | MOB | Escambia | 59 min |
| Aug 12, 6:03 PM CDT | Special Weather Statement | MOB | Crenshaw | 57 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.