Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 154, NWS Lake Charles, LA

November 1, 1998Tyler County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Nov 1, 1998, 3:13 PM CST for Tyler County, Texas. It was in force for 47 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
Nov 1, 1998, 3:13 PM CST (21:13 UTC)
Expired
Nov 1, 1998, 4:00 PM CST
In force
47 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Tyler County, TX

The radar

The Lake Charles radar (KLCH), 132 km from the middle of the area, began a volume at 21:14 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, 9.2 hours before the alert went out and 134 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 12:00Z on 1998-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 43 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 12:00Z on 1998-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.19395878Sfc1 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
43 J/kg
Mixed-layer CIN
-203 J/kg
Mixed-layer LCL
686 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
66 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.

000 
TTAA00 KLCH 012114
SVRLCH
TXC457-012200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES 
313 PM CST SUN NOV 1 1998

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TYLER COUNTY IN SOUTHEASTERN TEXAS

* UNTIL 400 PM CST

* AT 311 PM CST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 18 MILES SOUTHEAST OF WOODVILLE OR 7 MILES
  WEST OF FRED MOVING NORTHEAST AT 35 MPH. REMEMBER TORNADOES CAN
  FORM WITH LITTLE OR NO WARNING.

* THIS STORM CAN BE EXPECTED NEAR...
  FRED  BY 320 PM CST

SEVERE THUNDERSTORMS CAN 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.

K. KUYPER

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 Nov 1, 2:30 PM CST, 43 minutes earlier.

Area forecast discussion, Nov 1, 2:30 PM CST, 43 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
230 PM CST SUN NOV 1 1998

STRONG COLD FRONTAL SYSTEM PROGRESSING THROUGH SOUTHEAST TEXAS THIS
AFTERNOON. COLLEGE STATION BEHIND THE FRNTL BNDRY HAS TEMPS IN THE
MID 60S WHILE IN ADVANCE OF THE FRNTL BNDRY TEMPS CONTINUE IN THE
UPR 70S TO LWR 80S. LN OF TSTMS CONTS TO ADV TO THE E AROUND 20 MPH
WHILE INDIVIDUAL CELLS LIFTING NE AROUND 40 MPH.

MDLS SEEM TO HAVE INITIALIZED CLOSE... WITH ETA SOL THRU THE 48 HR
PACKAGE LOOKING A LTL BETTER THAN EITHER NGM OR AVN. SHRTWV ENERGY
KICKING THRU AREA THIS AFTN... STRONG LOW LVL UNIDIRECTIONAL JET
AROUND 45 KTS W/ DIRECTIONAL CONVERGENCE AND UPR LVL SUPPORT TO
CONT TO DESTABILIZE ATMOSPHERE ALTHOUGH BEST ENERGY TO LIFT NEWD.
GUID SEEMS WAY TO SLOW WITH HNDLG OF FRNTL SYS MOVEMENT. OVR NGHT
TEMPS XPCD NEAR 60 SOUTHERN AREAS UPR 50S NRN AREAS.

RAIN ENDING ACRS SE TX AROUND MIDNIGHT AND WOULD SUGGEST
KEEPING POPS LOW AROUND 20 PERCENT OR LESS. WOULD SUGGEST SAT
FIRST ZONE PD WORDING SOMETHING LIKE... FOR THE REMAINDER OF THIS
AFTERNOON. FOR LA...AS MAIN DYNAMICS LIFT NE WOULD TRY TO TAPER
PRECIP FROM THE SOUTH TWRDS THE NORTH. RATIN ENDING TWRDS SUNRISE.

PRELIM

LCH 60/76/55 300
LFT 64/78/55 410
AEX 58/75/54 420
BPT 60/77/53 200

K. KUYPER

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 1, 1:47 PM CSTSevere Thunderstorm WarningLCHTyler48 min
Nov 1, 3:34 PM CSTSevere Thunderstorm WarningLCHNewton51 min
Nov 1, 3:37 PM CSTSevere Thunderstorm WarningLCHJasper33 min
Nov 1, 3:42 PM CSTTornado WarningLCHJasper48 min
Nov 1, 4:02 PM CSTTornado WarningLCHNewton48 min

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.