Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 4, NWS San Angelo, TX

April 14, 1990Runnels County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 14, 1990, 3:16 AM CDT for Runnels County, Texas. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Apr 14, 1990, 3:16 AM CDT (08:16 UTC)
Expired
Apr 14, 1990, 4:00 AM CDT
In force
44 min
Issued by
NWS San Angelo, TX
Area
Whole counties

County Runnels 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

Stephenville/Cla, TX (KSEP), launched 00:00Z, 8.3 hours before the alert went out and 182 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, Stephenville/Cla, TX at 00:00Z on 1990-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 485 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, Stephenville/Cla, TX at 00:00Z on 1990-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 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
485 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
635 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
226 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.