Alert archive / Texas / Tornado Warnings in 1993

Tornado Warning 10, NWS Houston/Galveston, TX

May 18, 1993Liberty County, Texas

NWS Houston/Galveston, TX issued this tornado warning at May 18, 1993, 3:22 PM CDT for Liberty County, Texas. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
May 18, 1993, 3:22 PM CDT (20:22 UTC)
Expired
May 18, 1993, 4:00 PM CDT
In force
38 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Liberty County, TX

The radar

The Houston radar (KHGX), 80 km from the middle of the area, began a volume at 20:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.4 hours before the alert went out and 155 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 1993-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 420 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, Lake Charles Mun, LA at 12:00Z on 1993-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 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
420 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
697 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
-79 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
May 18, 12:37 PM CDTSevere Thunderstorm WarningHGXWalker53 min
May 18, 2:35 PM CDTSevere Thunderstorm WarningHGXFort Bend, Harris55 min
May 18, 3:35 PM CDTSevere Thunderstorm WarningHGXChambers, Galveston65 min
May 18, 4:05 PM CDTTornado WarningHGXChambers55 min
May 18, 6:48 PM CDTSevere Thunderstorm WarningHGXAustin57 min

Nearby

Tornado Warnings in Texas, 1993Every tornado warning in 1993Tornadoes in 1993

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; radar from the NEXRAD Level II archive.