Alert archive / Texas / Flash Flood Warnings in 1989

Flash Flood Warning 33, NWS Houston/Galveston, TX

October 15, 1989Chambers County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Oct 15, 1989, 11:55 PM CDT for Chambers County, Texas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Oct 15, 1989, 11:55 PM CDT (04:55 UTC)
Expired
Oct 16, 1989, 2:00 AM CDT
In force
2 hr
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Chambers 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, 4.9 hours before the alert went out and 236 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 1989-10-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 429 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, Victoria Regiona, TX at 00:00Z on 1989-10-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
429 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1220 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
7 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
Oct 15, 7:55 PM CDTTornado WarningHGXGalveston35 min
Oct 15, 8:18 PM CDTTornado WarningHGXHarris27 min
Oct 15, 8:57 PM CDTTornado WarningHGXGalveston33 min
Oct 15, 9:20 PM CDTTornado WarningHGXGalveston40 min
Oct 15, 10:06 PM CDTTornado WarningHGXHarris39 min
Oct 15, 10:24 PM CDTTornado WarningHGXChambers36 min
Oct 16, 1:54 AM CDTTornado WarningHGXPolk66 min

Nearby

Flash Flood Warnings in Texas, 1989Every flash flood warning in 1989

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.