Alert archive / Texas / Flash Flood Warnings in 1986

Flash Flood Warning 4, NWS Midland/Odessa, TX

May 29, 1986Glasscock County, Howard County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at May 29, 1986, 9:43 PM CDT for Glasscock County, Howard County, Texas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
May 29, 1986, 9:43 PM CDT (02:43 UTC)
Expired
May 30, 1986, 12:00 AM CDT
In force
2 hr
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

Counties Glasscock County, TX, Howard 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

Midland Regional, TX (KMAF), launched 00:00Z, 2.7 hours before the alert went out and 70 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, Midland Regional, TX at 00:00Z on 1986-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 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, Midland Regional, TX at 00:00Z on 1986-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.193958Sfc1 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
20 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
2339 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 300243
FFWMAF
TXC135-173-003-227-300500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
943 PM CDT THU MAY 29 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 1200 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

SOUTHWEST TEXAS...ECTOR...GLASSCOCK...CITY OF ODESSA...ANDREWS AND 
 HOWARD

AT 935PM, WIDESPREAD THUNDERSTORMS WITH VERY HEAVY RAINFALL IN
THE WARNED COUNTIES HAS LED TO MANY REPORTS OF STREET FLOODING
IN ODESSA MIDLAND AND BIG SPRING.

 THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL
 STREAMS AND UNDERPASSES.

 THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING AND STRONG GUSTY
 WINDS.

 PERSONS IN THE AFFECTED COUNTIES SHOULD REMAIN AT HOME AND NOT
 DRIVE ANYWHERE EXCEPT IN AN EMERGENCY OR TO GET TO A SAFE SHELTER.

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, May 29, 3:44 PM CDT, 5 hours 59 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MIDLAND TX
340 PM CDT THU MAY 29 1986

...VERY HEAVY THUNDERSTORMS OVER SOUTH PLAINS...

AT 330 PM CDT VERY HEAVY THUNDERSTORMS WERE OCCURING FROM 25 MILES NORTH
TO 25 MILES EAST OF SNYDER..15 MILES SOUTH OF LUBBOCK..10 MILES SOUTH TO
20 MILES EAST OF TATUM NEW MEXICO..AND 40 MILES SOUTHWEST OF PECOS.
ELSEWHERE...WIDELY SCATTERED RAINSHOWERS AND THUNDERSTORMS WERE
OCCURING OVER WEST TEXAS AND SOUTHEAST NEW MEXICO.

MOVEMENT WAS EAST AT 25 MILES AN HOUR.

CONDITIONS LOOK FAVORABLE FOR FURTHER STRENGTHENING OF THESE STORMS.
STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO/TV FOR FURTHER STATEMENTS
OR POSSIBLE WARNINGS.

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 29, 8:01 PM CDTFlash Flood WarningMAFMartin, Midland4 hr
May 29, 8:01 PM CDTFlash Flood WarningMAFDawson4 hr
May 29, 9:43 PM CDTFlash Flood WarningMAFAndrews, Ector2 hr
May 30, 12:04 AM CDTFlash Flood WarningMAFAndrews, Ector, Midland3 hr
May 30, 12:04 AM CDTFlash Flood WarningMAFGlasscock, Howard, Martin3 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.