Alert archive / Texas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 45, NWS Houston/Galveston, TX

November 24, 1986Washington County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Nov 24, 1986, 6:17 PM CST for Washington County, Texas. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Nov 24, 1986, 6:17 PM CST (00:17 UTC)
Expired
Nov 24, 1986, 7:15 PM CST
In force
58 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Washington 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

Victoria Regiona, TX (KVCT), launched 00:00Z, 0.3 hours before the alert went out and 159 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, Victoria Regiona, TX at 00:00Z on 1986-11-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLEL10008507005003002001001 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, Victoria Regiona, TX at 00:00Z on 1986-11-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 309 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
3 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
309 m²/s²
0-3 km storm-relative helicity
408 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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.

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 24, 8:51 PM CSTTornado WarningHGXPolk54 min
Nov 24, 10:15 PM CSTSevere Thunderstorm WarningHGXChambers, Galveston105 min
Nov 25, 2:40 PM CSTFlash Flood WarningHGXBrazoria, Harris80 min

Nearby

Severe Thunderstorm Warnings in Texas, 1986Every severe thunderstorm warning in 1986

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.