Alert archive / Texas / Tornado Warnings in 1986

Tornado Warning 9, NWS Houston/Galveston, TX

June 17, 1986Chambers County, Galveston County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Jun 17, 1986, 8:15 PM CDT for Chambers County, Galveston County, Texas. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jun 17, 1986, 8:15 PM CDT (01:15 UTC)
Expired
Jun 17, 1986, 8:55 PM CDT
In force
40 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

Counties Chambers County, TX, Galveston 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, 1.3 hours before the alert went out and 164 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 1986-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 318 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 1986-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
318 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1419 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
4 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.

What forecasters said that day

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

In the hours before

Special weather statement, Jun 17, 8:00 PM CDT, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GALVESTON TX
800 PM CDT TUE JUN 18 1986

WEATHER SREVICE RADAR INDICATES A VERY HEAVY THUNDERSTORM OVER THE
NORTHERN PORTION OF GALVESTON COUNTY AND IS MOVING TO THE SOUTHWEST AT
15 MILES AN HOUR.

HEAVY RAIN... GUSTY WIND... AND DANGEROUS LIGHTNING STRIKES CAN BE
EXPECTED WITH THE PASSAGE OF THIS STORM.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR FURTHER
STATEMENTS OR WARNINGS.

Nearby

Tornado Warnings in Texas, 1986Every tornado warning in 1986Tornadoes 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.