Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 182, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 10, 2021, 12:14 PM CDT for Mobile County, Alabama. It was in force for 46 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 10, 2021, 12:14 PM CDT (17:14 UTC)
- Expired
- Aug 10, 2021, 1:00 PM CDT
- In force
- 46 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Mobile County, AL
The radar
The Mobile radar (KMOB), 30 km from the middle of the area, began a volume at 17:16 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 5.2 hours before the alert went out and 129 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
- 3054 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 686 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
188
WUUS54 KMOB 101714
SVRMOB
ALC097-101800-
/O.NEW.KMOB.SV.W.0182.210810T1714Z-210810T1800Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1214 PM CDT Tue Aug 10 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Southwestern Mobile County in southwestern Alabama...
* Until 100 PM CDT.
* At 1213 PM CDT, a severe thunderstorm was located over Grand Bay,
moving northwest at 10 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Grand Bay.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Damaging winds and continuous cloud to ground lightning is occurring
with this storm. 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 this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3038 8841 3039 8841 3038 8840 3060 8840
3062 8832 3037 8824 3034 8836
TIME...MOT...LOC 1713Z 132DEG 11KT 3046 8835
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CGAL2 follow-up statements
560
WWUS54 KMOB 101744
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
1244 PM CDT Tue Aug 10 2021
ALC097-101800-
/O.CON.KMOB.SV.W.0182.000000T0000Z-210810T1800Z/
Mobile AL-
1244 PM CDT Tue Aug 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR WEST CENTRAL MOBILE COUNTY...
At 1244 PM CDT, a severe thunderstorm was located 4 miles northeast
of Helena, or 6 miles northwest of Grand Bay, moving northwest at 15
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Grand Bay.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3044 8840 3060 8840 3062 8832 3054 8829
3046 8835
TIME...MOT...LOC 1744Z 132DEG 11KT 3052 8843
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CGAL034
WWUS54 KMOB 101751
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
1251 PM CDT Tue Aug 10 2021
ALC097-101800-
/O.EXP.KMOB.SV.W.0182.000000T0000Z-210810T1800Z/
Mobile AL-
1251 PM CDT Tue Aug 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MOBILE COUNTY
WILL EXPIRE AT 100 PM CDT...
The storm which prompted the warning has largely moved northwest out
of the warned area. Therefore, the warning will be allowed to expire.
LAT...LON 3044 8840 3060 8840 3062 8832 3054 8829
3046 8835
TIME...MOT...LOC 1750Z 132DEG 11KT 3053 8844
$$
CGALThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 11:30 AM CDT | Special Weather Statement | MOB | Mobile | 45 min |
| Aug 10, 12:00 PM CDT | Special Weather Statement | MOB | Mobile | 45 min |
| Aug 10, 2:51 PM CDT | Special Weather Statement | MOB | Baldwin | 39 min |
| Aug 10, 5:22 PM CDT | Special Weather Statement | MOB | Crenshaw | 38 min |
| Aug 10, 6:11 PM CDT | Special Weather Statement | MOB | Baldwin | 34 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.