Alert archive / Texas / Flash Flood Warnings in 1986

Flash Flood Warning 3, NWS Houston/Galveston, TX

June 26, 1986Polk County, San Jacinto County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Jun 26, 1986, 8:13 PM CDT for Polk County, San Jacinto County, Texas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jun 26, 1986, 8:13 PM CDT (01:13 UTC)
Expired
Jun 26, 1986, 10:15 PM CDT
In force
2 hr
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

Counties Polk County, TX, San Jacinto 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

Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.2 hours before the alert went out and 184 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 00:00Z on 1986-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1321 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 00:00Z on 1986-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 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
1321 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.0
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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 26, 4:00 PM CDT, 4 hours 13 minutes before
ATTN SELS A GLS

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GALVESTON TX
400 PM CDT THU JUN 26 1986

 ...ALL ACTIVITY OCCURRED ON JUNE 26, 1986

 ...ALL TIMES CDT

0740 AM... SHERIFF'S uOFFICE IN CHAMBERS COUNTY RELAYED REPORT OF
           A TORNADO AT WINNIE...WHICH TORE THE ROOF OFF A MOBILE
           HOME. NO INJURIES OCCURRED.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 8:33 PM CDTFlash Flood WarningHGXLiberty4 hr
Jun 26, 10:03 PM CDTFlash Flood WarningHGXLiberty4 hr
Jun 26, 10:20 PM CDTFlash Flood WarningHGXPolk, San Jacinto4 hr
Jun 27, 2:30 AM CDTFlash Flood WarningHGXPolk, San Jacinto2 hr
Jun 27, 3:26 PM CDTSevere Thunderstorm WarningHGXLiberty64 min

Nearby

Flash Flood Warnings in Texas, 1986Every flash flood 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.