Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 31, NWS Houston/Galveston, TX

November 12, 2000Colorado County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Nov 12, 2000, 4:11 PM CST for Colorado County, Texas. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 12, 2000, 4:11 PM CST (22:11 UTC)
Expired
Nov 12, 2000, 5:00 PM CST
In force
49 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Colorado County, TX

The radar

The Houston radar (KHGX), 141 km from the middle of the area, began a volume at 22:13 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Nov 12, 1:30 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 10.2 hours before the alert went out and 225 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, Corpus Christi, TX at 12:00Z on 2000-11-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 622 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2000-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.1939587897Sfc1 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
622 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.8

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 12, 1:10 PM CSTTornado WarningHGXAustin, Colorado65 min
Nov 12, 1:42 PM CSTTornado WarningHGXColorado, Jackson, Wharton63 min
Nov 12, 2:52 PM CSTSevere Thunderstorm WarningHGXAustin, Colorado, Washington53 min
Nov 12, 3:09 PM CSTTornado WarningHGXAustin, Colorado, Washington36 min
Nov 12, 3:41 PM CSTTornado WarningHGXAustin, Colorado49 min
Nov 12, 3:49 PM CSTTornado WarningHGXWaller56 min
Nov 12, 4:11 PM CSTTornado WarningHGXHarris, Montgomery64 min
Nov 12, 4:25 PM CSTTornado WarningHGXAustin35 min
Nov 12, 4:57 PM CSTTornado WarningHGXColorado33 min
Nov 12, 5:12 PM CSTTornado WarningHGXWaller48 min
Nov 12, 5:29 PM CSTSevere Thunderstorm WarningHGXAustin, Colorado, Wharton31 min

Nearby

Tornado Warnings in Texas, 2000Every tornado warning in 2000Tornadoes in 2000

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.