Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 19, NWS Mobile, AL

March 30, 2021Greene County, Mississippi

NWS Mobile, AL issued this tornado warning at Mar 30, 2021, 8:29 PM CDT for Greene County, Mississippi. It was in force for 31 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 30, 2021, 8:29 PM CDT (01:29 UTC)
Expired: Mar 30, 2021, 9:00 PM CDT
In force: 31 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Greene County, MS

The radar

The Mobile radar (KMOB), 69 km from the middle of the area, began a volume at 01:31 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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.5 hours before the alert went out and 161 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: 1108 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 775 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

As transmitted.

096 
WFUS54 KMOB 310129
TORMOB
MSC041-310200-
/O.NEW.KMOB.TO.W.0019.210331T0129Z-210331T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
829 PM CDT Tue Mar 30 2021

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  East central Greene County in southeastern Mississippi...

* Until 900 PM CDT.
    
* At 828 PM CDT, a severe thunderstorm capable of producing a tornado
  was located northwest of Leakesville, moving northeast at 25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  east central Greene County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3138 8845 3125 8844 3120 8844 3116 8859
      3120 8863
TIME...MOT...LOC 0128Z 236DEG 21KT 3120 8857 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CGAL

3 follow-up statements

318 
WWUS54 KMOB 310137
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
837 PM CDT Tue Mar 30 2021

MSC041-310200-
/O.CON.KMOB.TO.W.0019.000000T0000Z-210331T0200Z/
Greene MS-
837 PM CDT Tue Mar 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR EAST
CENTRAL GREENE COUNTY...
    
At 836 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles north of Leakesville, moving northeast at 25 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
east central Greene County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3138 8845 3125 8844 3120 8844 3118 8855
      3124 8859
TIME...MOT...LOC 0136Z 232DEG 20KT 3124 8854 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CGAL

925 
WWUS54 KMOB 310149
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
849 PM CDT Tue Mar 30 2021

MSC041-310200-
/O.CON.KMOB.TO.W.0019.000000T0000Z-210331T0200Z/
Greene MS-
849 PM CDT Tue Mar 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR EAST
CENTRAL GREENE COUNTY...
    
At 849 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles southwest of Fruitdale, or 10 miles northeast of
Leakesville, moving northeast at 25 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
east central Greene County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3138 8845 3125 8844 3126 8850 3128 8855
TIME...MOT...LOC 0149Z 236DEG 21KT 3128 8847 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CGAL

388 
WWUS54 KMOB 310154
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
854 PM CDT Tue Mar 30 2021

MSC041-310203-
/O.EXP.KMOB.TO.W.0019.000000T0000Z-210331T0200Z/
Greene MS-
854 PM CDT Tue Mar 30 2021

...THE TORNADO WARNING FOR EAST CENTRAL GREENE COUNTY WILL EXPIRE AT
900 PM CDT...
                
The storm which prompted the warning has weakened to below severe 
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

LAT...LON 3138 8845 3125 8844 3126 8850 3128 8855
TIME...MOT...LOC 0153Z 236DEG 21KT 3129 8845 

$$

CGAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 7:10 PM CDT	Special Weather Statement	MOB	Perry	50 min
Mar 30, 7:13 PM CDT	Tornado Warning	MOB	Greene, Perry	47 min
Mar 30, 7:32 PM CDT	Tornado Warning	MOB	Greene	58 min
Mar 30, 7:45 PM CDT	Areal Flood Advisory	MOB	Greene, Perry	108 min
Mar 31, 12:36 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	54 min
Mar 31, 1:20 PM CDT	Special Weather Statement	MOB	Greene	40 min
Mar 31, 1:43 PM CDT	Freeze Watch	MOB	Greene, Wayne	13 hr
Mar 31, 2:04 PM CDT	Special Weather Statement	MOB	Greene, Perry, Wayne	56 min

Nearby

Tornado Warnings in Mississippi, 2021 Every tornado warning in 2021 Tornadoes 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.