Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 41, NWS Lake Charles, LA

February 1, 1998Hardin County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Feb 1, 1998, 2:36 AM CST for Hardin County, Texas. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 1, 1998, 2:36 AM CST (08:36 UTC)
Expired
Feb 1, 1998, 3:35 AM CST
In force
59 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Hardin County, TX

The radar

The Lake Charles radar (KLCH), 115 km from the middle of the area, began a volume at 08:38 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, 8.6 hours before the alert went out and 117 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 1998-02-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1998-02-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1333 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

806 
WUUS1 KLCH 010838 RRA
SVRLCH
TXC199-010935-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
236 AM CST SUN FEB 1 1998

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES LA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 335 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEASTERN TEXAS

   ...HARDIN COUNTY

AT 235 AM... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 7
MILES SOUTHWEST OF SOUR LAKE. THE STORM WAS MOVING NORTHEAST AT 30
MPH. THE STORM WILL REACH SOUR LAKE ABOUT 250 AM AND BE NEAR SILSBEE
AND LUMBERTON AROUND 315 AM. THIS STORM IS PRIMARILY A LARGE HAIL
PRODUCER.


SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND TORRENTIAL RAIN. FOR
YOUR PROTECTION...SEEK SHELTER IN A STRONG BUILDING. STAY AWAY
FROM WINDOWS AND AVOID USING TELEPHONES...COMPUTERS...OR OTHER
ELECTRICAL EQUIPMENT UNTIL THE STORM HAS PASSED.

MOGGED

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 31, 8:24 PM CST, 6 hours 12 minutes earlier.

Area forecast discussion, Jan 31, 8:24 PM CST, 6 hours 12 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
824 PM CST SAT JAN 31 1998

WL GO AHD AND KEEP POPS IN FCST FOR TONIGHT EVEN THOUGH
AMS IS FAIRLY DRY ACROSS THE FA. FIRST IN A SERIES OF 5H S/W
WILL MOVE ACROSS THE AREA EARLY TONIGHT. A 3H JET IN
COMBINATION WITH A SFC LOW THAT HAS FORMED NEAR BRO WILL
BRING A CHC OF SHRA AND TSHRA BY LATE TONIGHT TO SE TX
WITH A MORE SIG CHC OF RAIN SUNDAY INTO SUNDAY NIGHT.

IF ANY CHGS ARE MADE TO LA ZONES I WOULD LIKE TO LOWER THE
MINS FOR SWLA INTO THE LOWER 50S FOR TONIGHT. OTRW...CURRENT
FCST LUKS GUD.

              10

Nearby

Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998

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.