Alert archive / Texas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 89, NWS Midland/Odessa, TX

June 29, 1987Borden County, Dawson County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Jun 29, 1987, 7:10 PM CDT for Borden County, Dawson County, Texas. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1987, 7:10 PM CDT (00:10 UTC)
Expired
Jun 29, 1987, 8:00 PM CDT
In force
50 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

Counties Borden County, TX, Dawson 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, 0.2 hours before the alert went out and 100 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 1987-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2311 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 1987-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
2311 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1755 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 300005
SVRMAF
TXC033-115-300100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
710 PM CDT MON JUN 29 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  800 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHWEST TEXAS
          ...BORDEN...DAWSON
 
RADAR INDICATES A SEVERE THUNDERSTORM...BETWEEN LAMESA AND GAIL...
MOVING SOUTH AT 15 MILES AN HOUR.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 7:56 PM CDTSevere Thunderstorm WarningMAFMartin64 min
Jun 29, 8:35 PM CDTSevere Thunderstorm WarningMAFHoward55 min
Jun 29, 9:20 PM CDTSevere Thunderstorm WarningMAFMartin, Midland55 min
Jun 29, 9:35 PM CDTSevere Thunderstorm WarningMAFGlasscock115 min
Jun 29, 10:14 PM CDTSevere Thunderstorm WarningMAFMidland61 min
Jun 30, 3:33 AM CDTSevere Thunderstorm WarningMAFHoward57 min

Nearby

Severe Thunderstorm Warnings in Texas, 1987Every severe thunderstorm warning in 1987

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.