Alert archive / Texas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 62, NWS Lubbock, TX

September 29, 1986Floyd County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Sep 29, 1986, 4:14 PM CDT for Floyd County, Texas. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Sep 29, 1986, 4:14 PM CDT (21:14 UTC)
Expired
Sep 29, 1986, 5:15 PM CDT
In force
61 min
Issued by
NWS Lubbock, TX
Area
Whole counties

County Floyd 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.2 hours before the alert went out and 134 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, Amarillo Airport, TX at 12:00Z on 1986-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 500 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, Amarillo Airport, TX at 12:00Z on 1986-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 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
500 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
1071 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.3

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 severe thunderstorm 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, Sep 29, 3:58 PM CDT, 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
 {4PM CDT MON SEP 29 1986

 {A TORNADO WATCH IN EFFECT UNTIL 10PM CDT FOR COTTLE...KING...YOAKUM
...BAILEY...CROSBY...FLOYD...LAMB...COCHRAN...HOCKLEY...LUBBOCK...TERRY
...DICKENS...HALE AND MOTLEY COUNTIES OF THE TEXAS SOUTH PLAINS.

AT 355PM WEATHER SERVICE RADAR SHOWED SCATTERED THUNDERSTORMS DEVELOPING
OVER PORTIONS OF TERRY...LYNN...LUBBOCK...HALE AND FLOYD COUNTIES WITH
AN ISOLATED THUNDERSTORM IN NORTHWEST DICKENS COUNTY.  STRONGEST STORMS
WERE FROM EXTREME NORTHWEST LUBBOCK COUNTY NORTHEAST THROUGH HALE COUNTY.

MOVEMENT OF ALL STORMS WAS TO THE NORTHEAST AT 20 MILES AN HOUR.

WHILE NO SEVERE WEATHER WAS INDICATED AND NONE HAS BEEN REPORTED TO THE
NATIONAL WEATHER SERVICE...PERSONS IN AND NEAR THE WATCH AREA ARE URGED
TO REMAIN ALERT AND BE PREPARED TO TAKE IMMEDIATE ACTION IF SEVERE WEA-
THER IS SIGHTED OR A WARNING IS ISSUED. {

The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 29, 6:05 AM CDTSevere Thunderstorm WarningLUBBailey55 min
Sep 29, 7:02 AM CDTSevere Thunderstorm WarningLUBBailey, Lamb58 min
Sep 29, 4:58 PM CDTSevere Thunderstorm WarningLUBLubbock52 min
Sep 29, 5:35 PM CDTSevere Thunderstorm WarningLUBCrosby55 min

Nearby

Severe Thunderstorm Warnings in Texas, 1986Every severe thunderstorm 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.