Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 179, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 1, 2021, 8:39 PM CDT for Choctaw County, Alabama. It was in force for 51 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, 8:39 PM CDT (01:39 UTC)
- Expired
- Aug 1, 2021, 9:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Choctaw County, AL
The radar
The Jackson/Brandon,MS radar (KDGX), 159 km from the middle of the area, began a volume at 01:40 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, 1.7 hours before the alert went out and 184 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.
104
WUUS54 KMOB 020139
SVRMOB
ALC023-020230-
/O.NEW.KMOB.SV.W.0179.210802T0139Z-210802T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
839 PM CDT Sun Aug 1 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Northwestern Choctaw County in southwestern Alabama...
* Until 930 PM CDT.
* At 839 PM CDT, a severe thunderstorm was located 5 miles east of
Snell, or 12 miles northwest of Butler, moving southeast at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Butler and Lisman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3214 8810 3192 8836 3209 8845 3225 8843
3229 8837
TIME...MOT...LOC 0139Z 322DEG 11KT 3218 8841
HAIL...<.75IN
WIND...60MPH
$$1 follow-up statement
798
WWUS54 KMOB 020158
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
858 PM CDT Sun Aug 1 2021
ALC023-020230-
/O.CON.KMOB.SV.W.0179.000000T0000Z-210802T0230Z/
Choctaw AL-
858 PM CDT Sun Aug 1 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR NORTHWESTERN CHOCTAW COUNTY...
At 857 PM CDT, a severe thunderstorm was located 5 miles east of
Snell, or 12 miles northwest of Butler, moving east at 10 mph. This
is a different storm than what the warning was initially issued for.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Butler and Lisman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3214 8810 3192 8836 3209 8845 3225 8843
3229 8837
TIME...MOT...LOC 0157Z 285DEG 10KT 3217 8841
HAIL...<.75IN
WIND...60MPH
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:03 PM CDT | Special Weather Statement | MOB | Choctaw | 42 min |
| Aug 1, 8:12 PM CDT | Special Weather Statement | MOB | Conecuh | 63 min |
| Aug 1, 8:17 PM CDT | Special Weather Statement | MOB | Choctaw | 43 min |
| Aug 1, 8:50 PM CDT | Special Weather Statement | MOB | Wilcox | 55 min |
| Aug 1, 9:02 PM CDT | Special Weather Statement | MOB | Choctaw | 43 min |
| Aug 1, 9:06 PM CDT | Areal Flood Advisory | MOB | Choctaw | 3 hr |
| Aug 1, 9:18 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh | 57 min |
| Aug 1, 9:35 PM CDT | Flash Flood Warning | MOB | Choctaw | 6 hr |
| Aug 1, 9:51 PM CDT | Severe Thunderstorm Warning | MOB | Wilcox | 31 min |
| Aug 1, 10:21 PM CDT | Special Weather Statement | MOB | Wilcox | 54 min |
| Aug 1, 10:39 PM CDT | Special Weather Statement | MOB | Monroe | 51 min |
| Aug 1, 10:40 PM CDT | Special Weather Statement | MOB | Conecuh | 65 min |
| Aug 2, 2:23 PM CDT | Special Weather Statement | MOB | Conecuh | 37 min |
| Aug 2, 2:59 PM CDT | Special Weather Statement | MOB | Mobile | 46 min |
| Aug 2, 3:04 PM CDT | Special Weather Statement | MOB | Escambia | 26 min |
| Aug 2, 3:10 PM CDT | Areal Flood Advisory | MOB | Mobile | 2 hr |
| Aug 2, 3:29 PM CDT | Special Weather Statement | MOB | Crenshaw | 31 min |
| Aug 2, 3:32 PM CDT | Special Marine Warning | MOB | 43 min | |
| Aug 2, 3:42 PM CDT | Special Weather Statement | MOB | Mobile | 48 min |
| Aug 2, 3:47 PM CDT | Special Weather Statement | MOB | Crenshaw | 43 min |
| Aug 2, 4:32 PM CDT | Areal Flood Advisory | MOB | Covington | 118 min |
| Aug 2, 5:37 PM CDT | Special Marine Warning | MOB | 83 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.