Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 3, NWS New Orleans, LA

January 2, 2017Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Jan 2, 2017, 1:33 PM CST for Walthall County, Mississippi. It was in force for 12 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: Jan 2, 2017, 1:33 PM CST (19:33 UTC)
Expired: Jan 2, 2017, 1:45 PM CST
In force: 12 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Walthall County, MS

The watch it was issued in

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

Issued	Product	Office	Lasted
Jan 2, 11:22 AM CST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.6 hours before the alert went out and 128 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: 1261 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 571 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 322 m²/s²
0-3 km storm-relative helicity: 423 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

As transmitted.

036 
WFUS54 KLIX 021933
TORLIX
MSC147-021945-
/O.NEW.KLIX.TO.W.0003.170102T1933Z-170102T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
133 PM CST MON JAN 2 2017

The National Weather Service in New Orleans has issued a

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

* Until 145 PM CST
    
* At 132 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Jayess, or 14 miles northwest of Kokomo, moving
  northeast at 50 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
  northwestern 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 3135 9011 3128 9021 3127 9026 3132 9026
      3135 9024
TIME...MOT...LOC 1932Z 224DEG 42KT 3131 9021 

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

$$

24/RR

1 follow-up statement

086 
WWUS54 KLIX 021945
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
145 PM CST MON JAN 2 2017

MSC147-021955-
/O.EXP.KLIX.TO.W.0003.000000T0000Z-170102T1945Z/
Walthall MS-
145 PM CST MON JAN 2 2017

...THE TORNADO WARNING FOR NORTHWESTERN WALTHALL COUNTY HAS
EXPIRED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been allowed to expire.

A tornado watch remains in effect until 800 PM CST for southern
Mississippi.

LAT...LON 3135 9011 3128 9021 3127 9026 3132 9026
      3135 9024
TIME...MOT...LOC 1945Z 224DEG 42KT 3140 9011 

$$

24/RR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 2, 11:35 AM CST	Special Weather Statement	LIX	Wilkinson	115 min
Jan 2, 11:57 AM CST	Severe Thunderstorm Warning	LIX	Pearl River	33 min
Jan 2, 12:14 PM CST	Severe Thunderstorm Warning	LIX	Pearl River	46 min
Jan 2, 12:15 PM CST	Severe Thunderstorm Warning	LIX	Amite, Wilkinson	45 min
Jan 2, 12:41 PM CST	Severe Thunderstorm Warning	LIX	Wilkinson	34 min
Jan 2, 12:55 PM CST	Special Weather Statement	LIX	Amite, Pike	95 min
Jan 2, 1:20 PM CST	Severe Thunderstorm Warning	LIX	Amite, Pike, Walthall	55 min
Jan 2, 1:52 PM CST	Severe Thunderstorm Warning	LIX	Pike, Walthall	53 min
Jan 2, 2:35 PM CST	Severe Thunderstorm Warning	LIX	Hancock, Pearl River, Walthall	55 min
Jan 2, 3:05 PM CST	Areal Flood Advisory	LIX	Hancock, Harrison, Jackson	3 hr
Jan 2, 3:22 PM CST	Special Weather Statement	LIX	Hancock, Harrison, Jackson	113 min

Nearby

Tornado Warnings in Mississippi, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.