Alert archive / Texas / Tornado Warnings in 1986

Tornado Warning 8, NWS Houston/Galveston, TX

June 15, 1986Chambers County, Galveston County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Jun 15, 1986, 11:10 AM CDT for Chambers County, Galveston County, Texas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jun 15, 1986, 11:10 AM CDT (16:10 UTC)
Expired
Jun 15, 1986, 12:10 PM CDT
In force
60 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 12:00Z, 4.2 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 12:00Z on 1986-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2027 joules per kilogram.LCLEL10008507005003002001001 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 1986-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -43 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
2027 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-43 m²/s²
0-3 km storm-relative helicity
-42 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 15, 8:45 AM CDT, 2 hours 25 minutes before
SPECIAL MARINE WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE GALVESTON TX
940 AM CDT SUN JUN 15 1986

 ...VERY HEAVY THUNDERSTORMS CONTINUE OVER THE ADJACENT COASTAL WATERS
OF CHAMBERS AND GALVESTON COUNTIES.

OPERATORS OF SMALL CRAFT SHOULD BE ALERT FOR CHANGING WEATHER
CONDITIONS.

AT 930 AM CDT A HEAVY THUNDERSTORM WAS OCCURRING 15 MILES SOUTHEAST OF
GALVESTON ISLAND...THIS THUNDERSTORM HAD PRODUCED WATERSPOUTS.

MOVEMENT WAS NORTH AT 15 MILES AN HOUR.

OTHER SCATTERED THUNDERSTORMS...SOME HEAVY AND VERY HEAVY...CONTINUED
TO DEVELOP ALONG THE COASTAL PLAINS AND OVER THE GULF.

THE HEAVIEST THUNDERSTORMS WERE OCCURRING OVER THE GULF 60 TO BEYOND
125 MILES SOUTH OF GALVESTON.

OTHER HEAVY THUNDERSTORMS CONTINUED NEAR PALACIOS AND FREEPORT.

MOVEMENT WAS NORTH AT 15 MILES AN HOUR.
Special weather statement, Jun 15, 10:35 AM CDT, 35 minutes before
SPECIAL MARINE WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE GALVESTON TX
1035 AM CDT SUN JUN 15 1986

 ...THUNDERSTORMS DECREASING OVER THE ADJACENT COASTAL WATERS OF
GALVESTON AND CHAMBERS COUNTIES.

MARINERS ON GALVESTON BAY...AND ON THE ADJACENT COASTAL WATERS SHOULD
CONTINUE TO BE ALERT FOR CHANGING WEATHER CONDITIONS.

AT 1030 AM CDT...THUNDERSTORMS IN THE GALVESTON BAY AREA HAD DECREASED
RAPIDLY DURING THE PAST HOUR.

HEAVY THUNDERSHOWERS WERE OCCURRING AT THE NORTH END OF GALVESTON
BAY...OVER PARTS OF THE HOUSTON METRO AREA...AND OVER THE GULF...30 TO
45 MILES SOUTHEAST OF GALVESTON ISLAND...THESE THUNDERSHOWERS WERE
DECREASING IN INTENSITY.

OTHER SCATTERED THUNDERSTORMS...SOME HEAVY AND VERY HEAVY...CONTINUED
TO DEVELOP ALONG THE COASTAL PLAINS AND OVER THE GULF.

THE HEAVIEST THUNDERSTORMS WERE OCCURRING OVER THE GULF 60 TO BEYOND
125 MILES SOUTH OF GALVESTON.

MOVEMENT WAS NORTH AT 15 MILES AN HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 8:40 AM CDTTornado WarningHGXChambers, Galveston60 min

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.