Alert archive / Texas / Flash Flood Warnings in 1986

Flash Flood Warning 8, NWS Lubbock, TX

October 2, 1986Crosby County, Lubbock County, Texas

NWS Lubbock, TX issued this flash flood warning at Oct 2, 1986, 2:33 PM CDT for Crosby County, Lubbock County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Oct 2, 1986, 2:33 PM CDT (19:33 UTC)
Expired
Oct 2, 1986, 5:30 PM CDT
In force
3 hr
Issued by
NWS Lubbock, TX
Area
Whole counties

Counties Crosby County, TX, Lubbock 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, 7.6 hours before the alert went out and 180 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 1986-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1376 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1986-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 158 square meters per square second.1939587897117Sfc1 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
1376 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
608 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
158 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.9
Supercell composite
3.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KLBB 021933
FFWLBB
TXC303-107-022230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
233 PM CDT THU OCT 2 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

NORTHWEST TEXAS...SOUTHEAST LUBBOCK AND CROSBY

AT 225PM RADAR SHOWED THUNDERSTORMS WITH HEAVY RAINFALL OVER
SOUTHEASTERN LUBBOCK AND A LARG/E PORTION OF CROSBY COUNTY
PRODUCING RISING WATER CONDITIONS IN BOTH AREAS.

THESE STORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.

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

Special weather statement, Oct 2, 9:07 AM CDT, 5 hours 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
905 AM CDT THU OCT 2 1986

THUNDERSTORMS OVER THE SOUTH PLAINS HAVE DECREASED IN AREAL COVERAGE
AND INTNESITY DURING THE PAST HOUR. HOWEVER...LIGHT RAINSHOWERS CONTINUE
IN THE COUNTIES OF MOTLEY...COTTLE...KING...LYNN AND TERRY. THESE SHOWERS
ARE MOVING TO THE NORTHEAST AT AROUND 35 MPH.

MORE ATMOSPHERIC MOISTURE IS MOVING INTO WEST TEXAS FROM TWO SOURCES...
THE MOISTURE AHEAD OF THE PACIFIC HURRICANE PAINE AND LOW LEVEL WIND
FLOW BRINGING MOISTURE IN FROM THE GULF OF MEXICO. THIS COMBINATION IS
EXPECTED TO CONTINUE THROUGH FRIDAY AND AS A RESULT THUNDERSTORMS ARE
EXPECTED TO REDEVELOP THIS AFTERNOON OVER MUCH OF WEST TEXAS AND TO
CONTINUE THROUGHOUT TONIGHT AND FRIDAY.

THIS WILL BE THE LAST STATEMENT FROM THE LUBBOCK OFFICE UNTIL THUNDER-
STORMS REDEVELOP OVER THE SOUTH PLAINS.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 7:21 PM CDTSevere Thunderstorm WarningLUBKent54 min
Oct 1, 7:47 PM CDTSevere Thunderstorm WarningLUBDickens, Kent58 min
Oct 1, 8:48 PM CDTSevere Thunderstorm WarningLUBKing57 min
Oct 1, 9:34 PM CDTSevere Thunderstorm WarningLUBFloyd56 min
Oct 2, 5:30 PM CDTFlash Flood WarningLUBFloyd3 hr

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.