Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 119, NWS Mobile, AL

May 4, 20215 counties in Alabama; George County, Greene County, Perry County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at May 4, 2021, 5:44 PM CDT for 5 counties in Alabama; George County, Greene County, Perry County, Mississippi. It was in force for 61 min. 4 reports 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: May 4, 2021, 5:44 PM CDT (22:44 UTC)
Expired: May 4, 2021, 6:45 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

The radar

The Mobile radar (KMOB), 61 km from the middle of the area, began a volume at 22:48 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.

What was reported inside it

Time	Report	Where	Remark
May 4, 5:55 PM CDT	TSTM WND DMG	4 Se Winn, AL	LARGE TREE FELL ON THE UNION UNITED METHODIST CHURCH AND DAMAGING THE BUILDING, AND LIFTED IT OFF OF ITS FOUNDATION.
May 4, 5:58 PM CDT	TSTM WND DMG	Leroy, AL	LAW ENFORCEMENT REPORTS TREE DOWN IN LEROY ON CR 34.
May 4, 6:05 PM CDT	TSTM WND DMG	1 Sse Jackson, AL	LARGE TREE DOWN NEAR INTERSECTION OF GAINESTOWN RD & ROCKVILLE RD.
May 4, 6:12 PM CDT	TSTM WND DMG	5 Wnw Choctaw Bluff, AL	TREE DOWN NEAR INTERSECTION OF ROCKVILLE RD AND SUEL RD.

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
May 4, 3:31 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.7 hours before the alert went out and 189 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: 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

Open this sounding in Storm Lab

The text

As transmitted.

919 
WUUS54 KMOB 042244
SVRMOB
ALC003-025-097-099-129-MSC039-041-111-042345-
/O.NEW.KMOB.SV.W.0119.210504T2244Z-210504T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
544 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...
  Southern Clarke County in southwestern Alabama...
  Northern George County in southeastern Mississippi...
  Southern Perry County in southeastern Mississippi...
  Greene County in southeastern Mississippi...

* Until 645 PM CDT.

* At 543 PM CDT, severe thunderstorms were located along a line
  extending from 6 miles west of Saint Stephens to near Beaumont,
  moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Monroeville, Jackson, Citronelle, Lucedale, Frisco City, Chatom,
  Leakesville, Chunchula, Stockton, Wagarville, Saint Stephens,
  Leroy, Gulfcrest, Deer Park, Axis, Uriah, Tibbie, Beaumont, Mount
  Vernon and Calvert.

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 3115 8914 3156 8812 3164 8798 3154 8717
      3146 8720 3140 8730 3126 8743 3126 8748
      3123 8755 3124 8762 3107 8762 3092 8800
      3086 8840 3089 8888 3091 8889 3091 8914
TIME...MOT...LOC 2243Z 287DEG 41KT 3155 8817 3116 8897 

HAIL...<.75IN
WIND...60MPH
 
$$

Black

1 follow-up statement

879 
WWUS54 KMOB 042302
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
602 PM CDT Tue May 4 2021

ALC003-025-097-099-129-MSC039-041-111-042345-
/O.CON.KMOB.SV.W.0119.000000T0000Z-210504T2345Z/
Monroe AL-Mobile AL-Baldwin AL-Washington AL-Clarke AL-George MS-
Perry MS-Greene MS-
602 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTHWESTERN MONROE...NORTHERN MOBILE...NORTHWESTERN BALDWIN...
WASHINGTON...SOUTHERN CLARKE...NORTHERN GEORGE...SOUTHERN PERRY AND
GREENE COUNTIES...

At 602 PM CDT, severe thunderstorms were located along a line
extending from near Leroy to 5 miles east of McLain, moving east at
45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Monroeville, Jackson, Citronelle, Lucedale, Frisco City, Leakesville,
Chunchula, Stockton, Saint Stephens, Wagarville, Leroy, Gulfcrest,
Deer Park, Axis, Uriah, Tibbie, Calvert, Mount Vernon, McLain and
Excel.

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 3151 8810 3163 8794 3154 8717 3146 8720
      3126 8743 3123 8755 3124 8762 3107 8762
      3092 8800 3086 8840 3091 8914 3106 8914
TIME...MOT...LOC 2302Z 287DEG 41KT 3149 8793 3110 8873 

HAIL...<.75IN
WIND...60MPH
 
$$

Black

The 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	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more	33 hr
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, 3:55 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	65 min
May 4, 4:44 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Mobile, Monroe, Washington	61 min
May 4, 4:59 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington, Wilcox	61 min
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
May 4, 6:45 PM CDT	Special Weather Statement	MOB	Conecuh, Mobile	45 min
May 4, 10:17 AM CDT	River Flood Warning	MOB	George, Greene, Wayne	3 days

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.