Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 21, NWS Lake Charles, LA

April 11, 1994Newton County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 11, 1994, 11:47 PM CDT for Newton County, Texas. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Apr 11, 1994, 11:47 PM CDT (04:47 UTC)
Expired
Apr 12, 1994, 12:45 AM CDT
In force
58 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Newton County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.8 hours before the alert went out and 91 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 00:00Z on 1994-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 755 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 00:00Z on 1994-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
755 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1002 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBPT 120447
SVRBPT
TXC351-120545-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PORT ARTHUR TX
1147 PM CDT MON APR 11 1994
 
THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 AM CDT
FOR PERSONS IN THE FOLLOWING COUNTIES...
 
IN SOUTHEAST TEXAS
 
   ...NEWTON COUNTY
 
A SEVERE THUNDERSTORM WAS INDICATED BY RADAR NEAR KIRBYVILLE MOVING
NORTHEAST AT 35 MPH. THE STORM IS MOVING TOWARD THE CITY OF NEWTON.
 
HAIL IS LIKELY WITH THIS STORM.  NICKEL SIZE HAIL FELL AT WOODVILLE AT
1120PM CDT WITH AN EARLIER STORM.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STMAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
 
&
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 10:54 PM CDTSevere Thunderstorm WarningLCHTyler66 min

Nearby

Severe Thunderstorm Warnings in Texas, 1994Every severe thunderstorm warning in 1994

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.