Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 43, NWS Lake Charles, LA

April 14, 2021Jefferson County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 14, 2021, 8:28 PM CDT for Jefferson County, Texas. It was in force for 30 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: Apr 14, 2021, 8:28 PM CDT (01:28 UTC)
Expired: Apr 14, 2021, 8:58 PM CDT
In force: 30 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Jefferson County, TX

The radar

The Lake Charles radar (KLCH), 87 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

Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.5 hours before the alert went out and 88 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: 651 J/kg
Mixed-layer CIN: -154 J/kg
Mixed-layer LCL: 566 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.6

Open this sounding in Storm Lab

The text

As transmitted.

499 
WUUS54 KLCH 150128
SVRLCH
TXC245-150215-
/O.NEW.KLCH.SV.W.0043.210415T0128Z-210415T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
828 PM CDT Wed Apr 14 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Southeastern Jefferson County in southeastern Texas...

* Until 915 PM CDT.

* At 828 PM CDT, a severe thunderstorm was located 11 miles south of
  La Belle, or 14 miles west of Sabine Pass, moving east at 25 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Port Arthur, Sabine Pass and Sea Rim State Park. 

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 2964 9426 2984 9426 2987 9401 2987 9393
      2984 9395 2979 9395 2977 9393 2976 9390
      2974 9390 2973 9387 2968 9384 2967 9388
      2968 9400 2964 9415
TIME...MOT...LOC 0128Z 272DEG 22KT 2972 9413 

HAIL...1.25IN
WIND...60MPH
 
$$

Warthen

1 follow-up statement

795 
WWUS54 KLCH 150158
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
858 PM CDT Wed Apr 14 2021

TXC245-150208-
/O.CAN.KLCH.SV.W.0043.000000T0000Z-210415T0215Z/
Jefferson TX-
858 PM CDT Wed Apr 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JEFFERSON COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Lake Charles.

LAT...LON 2964 9426 2984 9426 2987 9401 2987 9393
      2984 9395 2979 9395 2977 9393 2976 9390
      2974 9390 2973 9387 2968 9384 2967 9388
      2968 9400 2964 9415
TIME...MOT...LOC 0157Z 272DEG 22KT 2971 9391 

$$

Warthen

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 7:26 PM CDT	Special Weather Statement	LCH	Hardin	34 min
Apr 14, 7:40 PM CDT	Special Weather Statement	LCH	Jefferson	35 min
Apr 14, 7:52 PM CDT	Severe Thunderstorm Warning	LCH	Jefferson	38 min

Nearby

Severe Thunderstorm Warnings in Texas, 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.