Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 24, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 17, 2021, 10:31 PM CDT for 5 counties in 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
- Mar 17, 2021, 10:31 PM CDT (03:31 UTC)
- Expired
- Mar 17, 2021, 11:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Baldwin County, AL, Clarke County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL
The radar
The Mobile radar (KMOB), 115 km from the middle of the area, began a volume at 03:34 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 |
|---|---|---|---|
| Mar 17, 6:48 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 3.5 hours before the alert went out and 201 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
- 188 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 669 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 336 m²/s²
- 0-3 km storm-relative helicity
- 465 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
480
WUUS54 KMOB 180331
SVRMOB
ALC003-025-097-099-129-180415-
/O.NEW.KMOB.SV.W.0024.210318T0331Z-210318T0415Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1031 PM CDT Wed Mar 17 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Monroe County in south central Alabama...
Northwestern Mobile County in southwestern Alabama...
Northwestern Baldwin County in southwestern Alabama...
Southeastern Washington County in southwestern Alabama...
Central Clarke County in southwestern Alabama...
* Until 1115 PM CDT.
* At 1030 PM CDT, severe thunderstorms were located along a line
extending from 5 miles southeast of Wagarville to near McIntosh to
3 miles south of Citronelle, moving northeast at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Monroeville, Jackson, Citronelle, Frisco City, Peterman,
Wagarville, Leroy, Gulfcrest, Uriah, Whatley, Calvert, Mount
Vernon, Excel, Beatrice, McIntosh and Movico.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for south central
and southwestern Alabama.
Damaging winds and 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.
&&
LAT...LON 3183 8706 3171 8702 3172 8705 3168 8706
3164 8714 3152 8717 3146 8720 3145 8723
3140 8730 3132 8736 3123 8757 3124 8762
3122 8762 3102 8812 3097 8836 3124 8823
3147 8815 3183 8726
TIME...MOT...LOC 0330Z 246DEG 51KT 3138 8796 3124 8807 3105 8821
HAIL...<.75IN
WIND...60MPH
$$
21/CL1 follow-up statement
241
WWUS54 KMOB 180410
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
1110 PM CDT Wed Mar 17 2021
ALC003-025-097-099-129-180419-
/O.EXP.KMOB.SV.W.0024.000000T0000Z-210318T0415Z/
Monroe AL-Mobile AL-Baldwin AL-Washington AL-Clarke AL-
1110 PM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR MONROE...NORTHWESTERN
MOBILE...NORTHWESTERN BALDWIN...SOUTHEASTERN WASHINGTON AND CENTRAL
CLARKE COUNTIES WILL EXPIRE AT 1115 PM CDT...
The storms which prompted the warning have weakened. Therefore, the
warning will be allowed to expire.
A Tornado Watch remains in effect until 300 AM CDT for south central
and southwestern Alabama.
LAT...LON 3183 8706 3171 8702 3172 8705 3168 8706
3164 8714 3152 8717 3146 8720 3145 8723
3140 8730 3132 8736 3123 8757 3124 8762
3122 8762 3102 8812 3097 8836 3124 8823
3147 8815 3183 8726
TIME...MOT...LOC 0409Z 246DEG 51KT 3160 8738 3146 8749 3127 8763
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 7:10 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Washington | 65 min |
| Mar 17, 8:07 PM CDT | Special Weather Statement | MOB | Choctaw, Washington | 53 min |
| Mar 17, 8:31 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Monroe, Washington, Wilcox | 44 min |
| Mar 17, 9:15 PM CDT | Special Weather Statement | MOB | Butler, Monroe, Wilcox | 45 min |
| Mar 17, 9:27 PM CDT | Special Weather Statement | MOB | Clarke, Monroe, Washington | 48 min |
| Mar 17, 9:55 PM CDT | Severe Thunderstorm Warning | MOB | Butler, Crenshaw | 50 min |
| Mar 17, 10:17 PM CDT | Special Weather Statement | MOB | Monroe, Washington | 58 min |
| Mar 17, 11:12 PM CDT | Special Weather Statement | MOB | Baldwin, Mobile | 48 min |
| Mar 17, 11:28 PM CDT | Special Marine Warning | MOB | 92 min | |
| Mar 18, 12:02 AM CDT | Special Weather Statement | MOB | Monroe | 43 min |
| Mar 18, 12:07 AM CDT | Special Weather Statement | MOB | Mobile | 23 min |
| Mar 18, 12:32 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 28 min |
| Mar 18, 12:33 AM CDT | Special Marine Warning | MOB | 87 min | |
| Mar 18, 12:38 AM CDT | Special Weather Statement | MOB | Butler | 37 min |
| Mar 18, 12:57 AM CDT | Special Marine Warning | MOB | 63 min | |
| Mar 18, 1:48 AM CDT | Special Marine Warning | MOB | 87 min | |
| Mar 18, 3:16 AM CDT | Special Marine Warning | MOB | 89 min | |
| Mar 18, 4:00 AM CDT | Tornado Warning | MOB | Crenshaw | 30 min |
| Mar 18, 4:09 AM CDT | Special Marine Warning | MOB | 51 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.