Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 28, NWS Midland/Odessa, TX

April 23, 1990Upton County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Apr 23, 1990, 4:48 PM CDT for Upton County, Texas. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Apr 23, 1990, 4:48 PM CDT (21:48 UTC)
Expired
Apr 23, 1990, 5:45 PM CDT
In force
57 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Upton 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

Midland Regional, TX (KMAF), launched 12:00Z, 9.8 hours before the alert went out and 66 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, Midland Regional, TX at 12:00Z on 1990-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 498 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, Midland Regional, TX at 12:00Z on 1990-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
498 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
868 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 232148
SVRMAF
TXC461-232245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
448 PM CDT MON APR 23 1990
 
THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST TEXAS
 
   ...UPTON COUNTY
 
AT 447 PM...A SEVERE THUNDERSTORM WAS INDICATED BY RADAR IN CENTRAL
UPTON COUNTY. THIS STORM WAS MOVING NORTHEAST AT 25 MILES AN HOUR.
 
 
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.

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 23, 12:42 AM CDTSevere Thunderstorm WarningMAFGaines48 min
Apr 23, 3:45 PM CDTSevere Thunderstorm WarningMAFTerrell60 min
Apr 23, 4:59 PM CDTSevere Thunderstorm WarningMAFMidland61 min
Apr 23, 5:03 PM CDTSevere Thunderstorm WarningMAFHoward57 min
Apr 23, 5:15 PM CDTSevere Thunderstorm WarningMAFGlasscock60 min
Apr 23, 6:24 PM CDTSevere Thunderstorm WarningMAFGlasscock54 min

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.