Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 139, NWS Mobile, AL

June 13, 20214 counties in Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Jun 13, 2021, 5:00 PM CDT for 4 counties in Mississippi. It was in force for 45 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: Jun 13, 2021, 5:00 PM CDT (22:00 UTC)
Expired: Jun 13, 2021, 5:45 PM CDT
In force: 45 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties George County, MS, Greene County, MS, Perry County, MS, Stone County, MS

The radar

The Mobile radar (KMOB), 58 km from the middle of the area, began a volume at 22:02 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
Jun 13, 12:22 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.0 hours before the alert went out and 112 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: 2482 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted.

539 
WUUS54 KMOB 132200
SVRMOB
MSC039-041-111-131-132245-
/O.NEW.KMOB.SV.W.0139.210613T2200Z-210613T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
500 PM CDT Sun Jun 13 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  George County in southeastern Mississippi...
  Southeastern Perry County in southeastern Mississippi...
  Southwestern Greene County in southeastern Mississippi...
  Northeastern Stone County in southeastern Mississippi...

* Until 545 PM CDT.

* At 459 PM CDT, a cluster of severe thunderstorms was located 6 
  miles southeast of McLain, or 12 miles northwest of Lucedale, 
  moving southwest at 10 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Lucedale and McLain. 

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 3117 8886 3101 8857 3074 8858 3073 8859
      3074 8887 3077 8890 3078 8890 3093 8902
TIME...MOT...LOC 2159Z 035DEG 8KT 3104 8876 

HAIL...0.75IN
WIND...60MPH
 
$$

CGAL

2 follow-up statements

851 
WWUS54 KMOB 132222
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
522 PM CDT Sun Jun 13 2021

MSC039-041-111-131-132245-
/O.CON.KMOB.SV.W.0139.000000T0000Z-210613T2245Z/
George MS-Perry MS-Greene MS-Stone MS-
522 PM CDT Sun Jun 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR WESTERN GEORGE...SOUTHEASTERN PERRY...SOUTHWESTERN GREENE AND
NORTHEASTERN STONE COUNTIES...

At 521 PM CDT, a cluster of severe thunderstorms was located 7 miles 
south of McLain, or 13 miles northwest of Lucedale, moving southwest 
at 10 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
McLain.

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 3117 8886 3109 8872 3074 8872 3074 8887
      3077 8890 3078 8890 3093 8902
TIME...MOT...LOC 2221Z 035DEG 8KT 3100 8879 

HAIL...0.75IN
WIND...60MPH
 
$$

CGAL

263 
WWUS54 KMOB 132235
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
535 PM CDT Sun Jun 13 2021

MSC039-041-111-131-132245-
/O.EXP.KMOB.SV.W.0139.000000T0000Z-210613T2245Z/
George MS-Perry MS-Greene MS-Stone MS-
535 PM CDT Sun Jun 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN GEORGE...SOUTHEASTERN
PERRY...SOUTHWESTERN GREENE AND NORTHEASTERN STONE COUNTIES WILL
EXPIRE AT 545 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
southeastern Mississippi.

LAT...LON 3117 8886 3109 8872 3074 8872 3074 8887
      3077 8890 3078 8890 3093 8902
TIME...MOT...LOC 2235Z 035DEG 8KT 3098 8881 

$$

CGAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 7:54 PM CDT	Special Weather Statement	MOB	Wayne	51 min
Jun 12, 9:22 PM CDT	Special Weather Statement	MOB	George, Greene, Perry, Stone, Wayne	68 min
Jun 12, 10:20 PM CDT	Special Weather Statement	MOB	George, Greene	55 min
Jun 13, 4:14 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	61 min
Jun 13, 4:37 PM CDT	Special Weather Statement	MOB	George	38 min
Jun 13, 4:46 PM CDT	Special Weather Statement	MOB	Wayne	44 min
Jun 13, 5:09 PM CDT	Areal Flood Advisory	MOB	George, Greene, Perry, Stone, Wayne	3 hr
Jun 13, 5:11 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	64 min
Jun 13, 5:37 PM CDT	Special Weather Statement	MOB	Stone	38 min
Jun 13, 5:48 PM CDT	Severe Thunderstorm Warning	MOB	George, Greene, Perry, Stone	45 min
Jun 13, 6:19 PM CDT	Special Weather Statement	MOB	Stone	41 min

Nearby

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.