Alert archive / Louisiana / Tornado Warnings in 2017

Tornado Warning 4, NWS Lake Charles, LA

January 19, 2017Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Jan 19, 2017, 5:08 AM CST for Saint Landry Parish, Louisiana. It was in force for 22 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 19, 2017, 5:08 AM CST (11:08 UTC)
Expired: Jan 19, 2017, 5:30 AM CST
In force: 22 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Saint Landry Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 11.1 hours before the alert went out and 149 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: 602 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 625 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

As transmitted.

135 
WFUS54 KLCH 191108
TORLCH
LAC097-191130-
/O.NEW.KLCH.TO.W.0004.170119T1108Z-170119T1130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
508 AM CST THU JAN 19 2017

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  East central St. Landry Parish in central Louisiana...

* Until 530 AM CST
    
* At 507 AM CST, a severe thunderstorm capable of producing a tornado
  was located over Krotz Springs, 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
  east central St. Landry Parish.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to 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 3066 9175 3063 9174 3062 9175 3060 9175
      3057 9176 3053 9174 3052 9178 3059 9184
      3069 9174 3067 9173
TIME...MOT...LOC 1107Z 238DEG 36KT 3057 9178 

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

$$

25

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 19, 8:59 AM CST	River Flood Warning	LCH	Vernon	4 days
Jan 19, 9:26 AM CST	Special Marine Warning	LCH		64 min
Jan 19, 10:27 AM CST	Special Marine Warning	LCH		63 min

Nearby

Tornado Warnings in Louisiana, 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.