Alert archive / Texas / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 77, NWS Houston/Galveston, TX

June 30, 1992Austin County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 30, 1992, 2:29 PM CDT for Austin County, Texas. It was in force for 61 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 30, 1992, 2:29 PM CDT (19:29 UTC)
Expired
Jun 30, 1992, 3:30 PM CDT
In force
61 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Austin County, TX

What was reported inside it

TimeReportWhereRemark
Jun 30, 2:40 PM CDTHail 0.75Austin, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 7.5 hours before the alert went out and 298 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 1992-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1800 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, Lake Charles Mun, LA at 12:00Z on 1992-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
1800 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
786 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Jun 30, 2:03 PM CDTSevere Thunderstorm WarningHGXTrinity57 min
Jun 30, 2:11 PM CDTSevere Thunderstorm WarningHGXGrimes, Waller64 min
Jun 30, 2:29 PM CDTSevere Thunderstorm WarningHGXHarris, Montgomery61 min
Jun 30, 3:14 PM CDTSevere Thunderstorm WarningHGXFort Bend61 min
Jun 30, 3:25 PM CDTSevere Thunderstorm WarningHGXHarris65 min
Jun 30, 3:31 PM CDTSevere Thunderstorm WarningHGXChambers59 min
Jun 30, 3:43 PM CDTSevere Thunderstorm WarningHGXLiberty62 min
Jun 30, 3:43 PM CDTSevere Thunderstorm WarningHGXBrazoria62 min
Jun 30, 3:50 PM CDTSevere Thunderstorm WarningHGXGalveston60 min

Nearby

Severe Thunderstorm Warnings in Texas, 1992Every severe thunderstorm warning in 1992

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.