Alert archive / Texas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 46, NWS Midland/Odessa, TX

July 21, 1986Midland County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Jul 21, 1986, 3:56 PM CDT for Midland County, Texas. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jul 21, 1986, 3:56 PM CDT (20:56 UTC)
Expired
Jul 21, 1986, 5:00 PM CDT
In force
64 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Midland 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, 8.9 hours before the alert went out and 18 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 1986-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 282 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 12:00Z on 1986-07-21The 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
282 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
1770 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
20 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 212056
SVRMAF
TXC329-212200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
356 PM CDT MON JUL 21 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  500 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN SOUTHWEST TEXAS
          ..MIDLAND

AT 358 PM CDT MIDLAND RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES
SOUTH OF THE REGIONAL AIRPORT MOVING SLOWLY TO THE EAST.
 
MARBLE SIZE HAIL HAS ALREADY BEEN PRODUCED BY THIS STORM.
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 5:01 PM CDTSevere Thunderstorm WarningMAFMidland59 min
Jul 21, 5:01 PM CDTSevere Thunderstorm WarningMAFCrane59 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.