Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 7, NWS Lake Charles, LA

March 14, 1990Nacogdoches County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 14, 1990, 3:23 PM CST for Nacogdoches County, Texas. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Mar 14, 1990, 3:23 PM CST (21:23 UTC)
Expired
Mar 14, 1990, 4:15 PM CST
In force
52 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Nacogdoches County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 12:00Z, 9.4 hours before the alert went out and 82 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, Longview/Gregg, TX at 12:00Z on 1990-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 333 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, Longview/Gregg, TX at 12:00Z on 1990-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 221 square meters per square second.1939587897Sfc1 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
333 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
221 m²/s²
0-3 km storm-relative helicity
245 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBPT 142123
SVRBPT
TXC347-142215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PORT ARTHUR TX
323 PM CST WED MAR 14 1990
 
THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 PM CST
FOR PERSONS IN THE FOLLOWING COUNTIES
 
IN NORTHEAST TEXAS
 
   ...NACOGDOCHES COUNTY
 
AT 330 PM CST...WEATHER RADAR SHOWED A SEVERE THUNDERSTORM ENTERING
NACOGDOCHES COUNTY WEST OF NACOGDOCHES MOVING TO THE NORTHEAST AT 50
MILES AN HOUR. VERY STRONG...DAMAGING WINDS AND HAIL WILL ACCOMPANY
THIS STORM ACROSS NACOGDOCHES COUNTY.
 
THE MAIN STORM TRACK WILL MOVE ACROSS CENTRAL HEIGHTS...APPLEBY
AND GARRISON BUT DAMAGING GUSTS MAY AFFECT NACOGDOCHES AND CUSHING.
 
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
NNNN

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.

In the hours before

Local storm report, Mar 14, 2:08 PM CST, 1 hour 15 minutes before
ATTN SELS BPT

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
210 PM CST WED MAR 14 1990

TIME     EVENT
140 PM   DEWEYVILLE SCHOOL SUPERINTENDENT REPORTED WIND DAMAGE
         AT ELEMENTAR]Y SCHOOL. ROOFING TIN TORN OFF.

DCG

Nearby

Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990

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.