Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 99, NWS Lake Charles, LA

June 15, 2021Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 15, 2021, 4:29 PM CDT for Cameron Parish, Louisiana. 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: Jun 15, 2021, 4:29 PM CDT (21:29 UTC)
Expired: Jun 15, 2021, 5:00 PM CDT
In force: 31 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Cameron Parish, LA

The radar

The Lake Charles radar (KLCH), 44 km from the middle of the area, began a volume at 21:31 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.5 hours before the alert went out and 45 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: 2560 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 884 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

505 
WUUS54 KLCH 152129
SVRLCH
LAC023-152200-
/O.NEW.KLCH.SV.W.0099.210615T2129Z-210615T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
429 PM CDT Tue Jun 15 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Northwestern Cameron Parish in southwestern Louisiana...

* Until 500 PM CDT.

* At 428 PM CDT, a severe thunderstorm was located near Sabine
  National Wildlife, moving southwest at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Sabine National Wildlife, Hackberry and Constance Beach. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and 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.

&&

LAT...LON 2991 9377 2997 9376 2999 9379 3002 9374
      3004 9373 3005 9372 3005 9349 2989 9338
      2987 9343 2986 9344 2985 9344 2975 9361
TIME...MOT...LOC 2128Z 059DEG 18KT 2998 9356 

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

Stigger/87

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 2:58 PM CDT	Special Weather Statement	LCH	Vermilion	47 min
Jun 15, 3:02 PM CDT	Special Weather Statement	LCH	Calcasieu	58 min
Jun 15, 3:37 PM CDT	Special Weather Statement	LCH	Vermilion	53 min
Jun 15, 3:41 PM CDT	Special Weather Statement	LCH	Calcasieu	49 min
Jun 15, 3:52 PM CDT	Special Weather Statement	LCH	Saint Martin	53 min
Jun 15, 3:57 PM CDT	Special Weather Statement	LCH	Cameron	63 min
Jun 15, 4:17 PM CDT	Special Weather Statement	LCH	Calcasieu	13 min
Jun 15, 4:30 PM CDT	Special Marine Warning	LCH		2 hr
Jun 15, 4:48 PM CDT	Special Weather Statement	LCH	Cameron, Jefferson Davis	57 min
Jun 15, 4:48 PM CDT	Severe Thunderstorm Warning	LCH	Cameron	27 min
Jun 15, 5:21 PM CDT	Special Marine Warning	LCH		84 min
Jun 15, 5:35 PM CDT	Special Weather Statement	LCH	St. Mary	70 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 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.