Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 116, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 4, 2021, 4:44 PM CDT for 4 counties in Mississippi; 5 counties in Alabama. It was in force for 61 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
- May 4, 2021, 4:44 PM CDT (21:44 UTC)
- Expired
- May 4, 2021, 5:45 PM CDT
- In force
- 61 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, George County, MS, Greene County, MS, Perry County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 66 km from the middle of the area, began a volume at 21:48 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 |
|---|---|---|---|
| May 4, 3:31 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.7 hours before the alert went out and 176 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
- 2523 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 594 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 7.4
The text
As transmitted.
494
WUUS54 KMOB 042144
SVRMOB
ALC003-025-097-099-129-MSC039-041-111-153-042245-
/O.NEW.KMOB.SV.W.0116.210504T2144Z-210504T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
444 PM CDT Tue May 4 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Southwestern Monroe County in south central Alabama...
Northern Mobile County in southwestern Alabama...
Northwestern Baldwin County in southwestern Alabama...
Washington County in southwestern Alabama...
Southeastern Clarke County in southwestern Alabama...
Northern George County in southeastern Mississippi...
Perry County in southeastern Mississippi...
Southern Wayne County in southeastern Mississippi...
Greene County in southeastern Mississippi...
* Until 545 PM CDT.
* At 444 PM CDT, severe thunderstorms were located along a line
extending from 7 miles north of Waynesboro to 9 miles southeast of
Mill Creek to 3 miles west of Ovett to West Hattiesburg, moving
east at 75 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Citronelle, Lucedale, Frisco City, Chatom, Richton, Leakesville,
Chunchula, Wagarville, Gulfcrest, Deer Park, Uriah, Tibbie,
Beaumont, Calvert, Mount Vernon, New Augusta, McLain, Excel, State
Line and Fruitdale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southwestern Alabama...and southeastern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3143 8915 3143 8894 3155 8894 3146 8730
3125 8750 3123 8755 3124 8762 3115 8762
3088 8823 3091 8914
TIME...MOT...LOC 2144Z 289DEG 65KT 3178 8865 3157 8890 3147 8908 3134
8937
HAIL...<.75IN
WIND...60MPH
$$
Black2 follow-up statements
918
WWUS54 KMOB 042150
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
450 PM CDT Tue May 4 2021
ALC003-025-097-099-129-MSC039-041-111-153-042245-
/O.CON.KMOB.SV.W.0116.000000T0000Z-210504T2245Z/
Monroe AL-Mobile AL-Baldwin AL-Washington AL-Clarke AL-George MS-
Perry MS-Wayne MS-Greene MS-
450 PM CDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR SOUTHWESTERN MONROE...NORTHERN MOBILE...NORTHWESTERN BALDWIN...
WASHINGTON...SOUTHEASTERN CLARKE...NORTHERN GEORGE...PERRY...SOUTHERN
WAYNE AND GREENE COUNTIES...
At 449 PM CDT, severe thunderstorms were located along a line
extending from 7 miles northwest of Waynesboro to 6 miles southeast
of Mill Creek to 3 miles west of Ovett to Rawls Springs, moving east
at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Citronelle, Lucedale, Frisco City, Chatom, Richton, Leakesville,
Chunchula, Wagarville, Gulfcrest, Deer Park, Uriah, Tibbie, Beaumont,
Calvert, Mount Vernon, New Augusta, McLain, Excel, State Line and
Fruitdale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southwestern Alabama...and southeastern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3143 8915 3143 8894 3155 8894 3146 8730
3125 8750 3123 8755 3124 8762 3115 8762
3088 8823 3091 8914
TIME...MOT...LOC 2149Z 276DEG 38KT 3177 8872 3161 8891 3150 8909 3137
8939
HAIL...<.75IN
WIND...60MPH
$$
Black961
WWUS54 KMOB 042213
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
513 PM CDT Tue May 4 2021
ALC003-025-097-099-129-MSC039-041-111-153-042245-
/O.CON.KMOB.SV.W.0116.000000T0000Z-210504T2245Z/
Monroe AL-Mobile AL-Baldwin AL-Washington AL-Clarke AL-George MS-
Perry MS-Wayne MS-Greene MS-
513 PM CDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR SOUTHWESTERN MONROE...NORTHWESTERN MOBILE...NORTHWESTERN
BALDWIN...WASHINGTON...SOUTHEASTERN CLARKE...NORTHERN GEORGE...
PERRY...SOUTHERN WAYNE AND GREENE COUNTIES...
At 513 PM CDT, severe thunderstorms were located along a line
extending from 4 miles west of Silas to 3 miles east of Clara to 8
miles northeast of Richton to Sunrise, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Citronelle, Chatom, Richton, Leakesville, Wagarville, Gulfcrest, Deer
Park, Tibbie, Beaumont, Calvert, Mount Vernon, New Augusta, McLain,
State Line, Fruitdale, McIntosh and Movico.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southwestern Alabama...and southeastern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3155 8894 3147 8754 3129 8769 3115 8780
3094 8833 3091 8914 3143 8915 3143 8894
TIME...MOT...LOC 2213Z 279DEG 39KT 3176 8841 3159 8864 3146 8886 3130
8920
HAIL...<.75IN
WIND...60MPH
$$
BlackThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 4:23 AM CDT | Flash Flood Watch | MOB | George, Greene, Perry, Stone, Wayne | 33 hr |
| May 4, 10:17 AM CDT | River Flood Warning | MOB | George, Greene, Wayne | 3 days |
| May 4, 3:55 PM CDT | Severe Thunderstorm Warning | MOB | Wayne | 65 min |
| May 4, 4:59 PM CDT | Severe Thunderstorm Warning | MOB | Wayne | 61 min |
| May 4, 5:44 PM CDT | Severe Thunderstorm Warning | MOB | George, Greene, Perry | 61 min |
| May 4, 6:45 PM CDT | Special Weather Statement | MOB | George | 45 min |
| May 4, 10:18 AM CDT | River Flood Warning | MOB | Choctaw, Clarke, Washington | 21 days |
| May 4, 10:19 AM CDT | River Flood Warning | MOB | Clarke, Washington | 5 days |
| May 4, 5:33 PM CDT | Severe Thunderstorm Warning | MOB | Butler, Clarke, Conecuh, Monroe, Wilcox | 57 min |
| May 4, 6:28 PM CDT | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Crenshaw, Monroe, Wilcox | 77 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2021Severe Thunderstorm Warnings in Mississippi, 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.