Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 50, NWS Mobile, AL

April 10, 2021Choctaw County, Alabama; Wayne County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Apr 10, 2021, 1:06 AM CDT for Choctaw County, Alabama; Wayne County, Mississippi. It was in force for 54 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 10, 2021, 1:06 AM CDT (06:06 UTC)
Expired: Apr 10, 2021, 2:00 AM CDT
In force: 54 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 70.0 mph

Counties Choctaw County, AL, Wayne County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 146 km from the middle of the area, began a volume at 06:10 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.

What was reported inside it

Time	Report	Where	Remark
Apr 10, 1:55 AM CDT	TSTM WND DMG	Needham, AL	CHOCTAW COUNTY EMA RELAYED REPORTS OF SEVERAL TREES DOWN. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 9, 10:25 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 10, 12:16 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 6.1 hours before the alert went out and 156 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2299 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1555 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

As transmitted.

706 
WUUS54 KMOB 100606
SVRMOB
ALC023-MSC153-100700-
/O.NEW.KMOB.SV.W.0050.210410T0606Z-210410T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
106 AM CDT Sat Apr 10 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Choctaw County in southwestern Alabama...
  Northern Wayne County in southeastern Mississippi...

* Until 200 AM CDT.

* At 106 AM CDT, severe thunderstorms were located along a line
  extending from 4 miles northeast of Stonewall to 5 miles south of
  Goodwater, moving east at 30 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Butler, Lisman, Silas, Gilbertown and Toxey. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 AM CDT for southeastern
Mississippi.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3231 8805 3176 8820 3175 8894 3183 8893
      3185 8865 3190 8847 3231 8842
TIME...MOT...LOC 0606Z 263DEG 28KT 3219 8876 3183 8886 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
 
$$

1 follow-up statement

270 
WWUS54 KMOB 100643
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
143 AM CDT Sat Apr 10 2021

ALC023-MSC153-100700-
/O.CON.KMOB.SV.W.0050.000000T0000Z-210410T0700Z/
Choctaw AL-Wayne MS-
143 AM CDT Sat Apr 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR CHOCTAW AND NORTHEASTERN WAYNE COUNTIES...

At 143 AM CDT, severe thunderstorms were located along a line
extending from 5 miles north of Lisman to 6 miles southeast of
Crandall to 6 miles north of Waynesboro, moving east at 35 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Butler, Lisman, Silas, Gilbertown and Toxey. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 AM CDT for southeastern
Mississippi.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3231 8805 3176 8820 3175 8871 3186 8863
      3190 8847 3231 8842
TIME...MOT...LOC 0643Z 278DEG 31KT 3224 8831 3190 8847 3177 8864 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 9, 9:31 PM CDT	River Flood Warning	MOB	Mobile	63 hr
Apr 10, 1:15 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Washington	45 min
Apr 10, 1:33 AM CDT	Special Marine Warning	MOB		87 min
Apr 10, 1:58 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington, Wilcox	62 min
Apr 10, 2:22 AM CDT	Special Weather Statement	MOB	Mobile	68 min
Apr 10, 2:35 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	25 min
Apr 10, 2:43 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	17 min
Apr 10, 2:50 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin	55 min
Apr 10, 2:59 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Butler, Clarke, Conecuh, Escambia, Mobile and 3 more	61 min
Apr 10, 3:36 AM CDT	Special Marine Warning	MOB		114 min
Apr 10, 3:53 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Butler, Conecuh, Covington, Escambia, Mobile and 2 more	67 min
Apr 10, 4:07 AM CDT	Areal Flood Advisory	MOB	Baldwin, Escambia, Mobile	3 hr
Apr 10, 4:33 AM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw, Escambia	57 min
Apr 10, 4:53 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Covington, Escambia	52 min
Apr 10, 5:10 AM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Apr 10, 5:28 AM CDT	Special Marine Warning	MOB		2 hr
Apr 10, 5:40 AM CDT	Flash Flood Warning	MOB	Baldwin	6 hr
Apr 10, 5:44 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Covington, Escambia	61 min
Apr 10, 5:53 AM CDT	Flash Flood Warning	MOB	Mobile	6 hr
Apr 10, 6:04 AM CDT	Special Marine Warning	MOB		86 min
Apr 10, 6:20 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	40 min
Apr 10, 6:48 AM CDT	Special Marine Warning	MOB		87 min
Apr 10, 6:52 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin	53 min
Apr 10, 7:12 AM CDT	Special Marine Warning	MOB		63 min
Apr 10, 7:30 AM CDT	Special Marine Warning	MOB		90 min
Apr 10, 9:28 AM CDT	River Flood Warning	MOB	Baldwin	11 hr
Apr 10, 9:33 AM CDT	River Flood Warning	MOB	Baldwin	5 hr
Apr 10, 3:11 AM CDT	Severe Thunderstorm Warning	MOB	George, Stone	37 min
Apr 10, 4:31 AM CDT	Areal Flood Advisory	MOB	George, Perry, Stone	3 hr
Apr 10, 5:16 AM CDT	Flash Flood Warning	MOB	George, Perry, Stone	4 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2021 Severe Thunderstorm Warnings in Mississippi, 2021 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.