Alert archive / Texas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 7, NWS Midland/Odessa, TX

April 25, 1986Pecos County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Apr 25, 1986, 5:12 PM CST for Pecos County, Texas. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Apr 25, 1986, 5:12 PM CST (23:12 UTC)
Expired
Apr 25, 1986, 6:15 PM CST
In force
63 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Pecos 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 139 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 1986-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 446 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 1986-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 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
446 J/kg
Mixed-layer CIN
-323 J/kg
Mixed-layer LCL
1518 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 252312
SVRMAF
TXC371-260015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
512 PM CST FRI APR 25 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 615 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

SOUTHWEST TEXAS...EASTERN PECOS

AT 505 PM, RADAR INDICATED A SEVERE THUNDERSTORM LOCATED
20 MILES SOUTHEAST OF FORT STOCKTON MOVING TOWARD THE
NORTHEAST AT 25 MILES PER HOUR.

 IF YOU ARE IN THE PATH OF THESE DANGEROUS STORMS..GO TO REINFORCED
 SHELTER AND PREPARE FOR DAMAGING WIND..LARGE HAIL..VERY HEAVY RAIN
 AND LIGHTNING. REMEMBER THESE STORMS CAN AND OCCASIONALLY DO PRODUCE
 A TORNADO WITH LITTLE OR NO ADVANCE WARNING.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 3:36 PM CSTSevere Thunderstorm WarningMAFPecos69 min
Apr 25, 4:27 PM CSTSevere Thunderstorm WarningMAFUpton63 min
Apr 25, 5:30 PM CSTSevere Thunderstorm WarningMAFGlasscock60 min
Apr 25, 5:56 PM CSTSevere Thunderstorm WarningMAFHoward4 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.