Alert archive / Mississippi / Tornado Warnings in 2020

Tornado Warning 2, NWS New Orleans, LA

February 12, 2020Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Feb 12, 2020, 3:05 PM CST for Walthall County, Mississippi. It was in force for 10 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: Feb 12, 2020, 3:05 PM CST (21:05 UTC)
Expired: Feb 12, 2020, 3:15 PM CST
In force: 10 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Walthall County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.1 hours before the alert went out and 111 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: 174 J/kg
Mixed-layer CIN: -195 J/kg
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 196 m²/s²
0-3 km storm-relative helicity: 359 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

697 
WFUS54 KLIX 122105
TORLIX
MSC147-122115-
/O.NEW.KLIX.TO.W.0002.200212T2105Z-200212T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
305 PM CST Wed Feb 12 2020

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Central Walthall County in southern Mississippi...

* Until 315 PM CST.
    
* At 304 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Kokomo, moving northeast at 40 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
  central Walthall 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 3123 9003 3118 9003 3117 9002 3112 9007
      3116 9013 3133 9004
TIME...MOT...LOC 2104Z 219DEG 36KT 3118 9007 

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

$$

MEFFER

1 follow-up statement

914 
WWUS54 KLIX 122113
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
313 PM CST Wed Feb 12 2020

MSC147-122123-
/O.EXP.KLIX.TO.W.0002.000000T0000Z-200212T2115Z/
Walthall MS-
313 PM CST Wed Feb 12 2020

...THE TORNADO WARNING FOR CENTRAL WALTHALL COUNTY WILL EXPIRE AT 315
PM CST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3123 9003 3118 9003 3117 9002 3112 9007
      3116 9013 3133 9004
TIME...MOT...LOC 2113Z 219DEG 36KT 3125 9001 

$$

MEFFER

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 12, 12:38 PM CST	River Flood Warning	LIX	Jackson	21 days

Nearby

Tornado Warnings in Mississippi, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.