Alert archive / Texas / Flash Flood Warnings in 1986

Flash Flood Warning 29, NWS Midland/Odessa, TX

September 15, 1986Andrews County, Gaines County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Sep 15, 1986, 6:11 PM CDT for Andrews County, Gaines County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Sep 15, 1986, 6:11 PM CDT (23:11 UTC)
Expired
Sep 15, 1986, 9:00 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

Counties Andrews County, TX, Gaines 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 12:00Z, 11.2 hours before the alert went out and 76 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 12:00Z on 1986-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 671 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, Midland Regional, TX at 12:00Z on 1986-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
671 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
1137 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
114 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 
TTAAOO KMAF 152311
FFWMAF
TXC003-165-160315-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
611 PM CDT MON SEP 15 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL 1015 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN NORTHWEST TEXAS
          ..ANDREWS..GAINES

AT 610 PM CDT..RADAR INDICATED A SEVERE THUNDERSTORM 18 MILES
SOUTHWEST OF SEMINOLE TEXAS MOVING SLOWLY TO THE NORTHEAST AT 5 MILES
AN HOUR.
IF YOU ARE CAUGHT OUTSIDE, SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND, LARGE HAIL, VERY HEAVY RAIN, AND
DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.  STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH,
DESTRUCTIVE HAIL, DEADLY LIGHTNING AND VERY HEAVY RAIN.  FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

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, Sep 15, 4:40 PM CDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MIDLAND TX
440 PM CDT MON SEP 15 1986

AT 425 PM CDT...VERY HEAVY THUNDERSTORMS AND SHOWERS WERE ENCLOSED
WITHIN A 170 MILE WIDE AREA FROM 25 MILES SOUTHWEST OF MARFA TEXAS TO
25 MILES SOUTHWEST OF CLOVIS NEW MEXICO.

HEAVIEST ACTIVITY WAS LOCATED 20 MILES NORTH OF SEMINOLE..10 MILES
NORTHWEST OF SEMINOLE..5 MILES SOUTHWEST OF HOBBS..AND 15 MILES WEST OF
FORT STOCKTOlN.

HIGHS WINDS..SMALL HAIL..LIGHTNING..AND FLOODING OF LOW LYING AREAS CAN
BE EXPECTED. PLEASE SEEK SAFETY IF THREATENING WEATHER APPROACHES.

MOVEMENT  WAS TO THE NORTH AT 5 MILES AN HOUR.
Special weather statement, Sep 15, 5:38 PM CDT, 33 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MIDLAND TX
535 PM CDT MON SEP 15 1986

AT 525 PM CDT...VERY HEAVY THUNDERSTORMS AND SHOWERS WERE SACATTERED
FROM SOUTH OF MARATHON TO NEAR PLAINVIEW THEN SOUTHWEST TO VAN HORN.

HEAVIEST ACTIVITY WAS LOCATED 10 MILES SOUTHEAST..AND 15 MILES NORTHEAST
OF SEMINOLE..AND FROM 25 MILES SOUTHWEST OF HOBBS NEW MEXICO TO 10 MILES
EAST OF HOBBS.

HIGHS WINDS..SMALL HAIL..LIGHTNING..AND FLOODING OF LOW LYING AREAS CAN
BE EXPECTED. SEAGRAVES HAS REPORTED FLOODING IN FLOOD PRONE AREAS.

MOVEMENT WAS TO THE NORTHEAST AT 5 MILES AN HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 15, 6:11 PM CDTSevere Thunderstorm WarningMAFGaines64 min
Sep 15, 6:11 PM CDTSevere Thunderstorm WarningMAFAndrews3 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.