Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 66, NWS Midland/Odessa, TX

July 21, 1990Winkler County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Jul 21, 1990, 9:58 PM CDT for Winkler County, Texas. It was in force for 62 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 21, 1990, 9:58 PM CDT (02:58 UTC)
Expired
Jul 21, 1990, 11:00 PM CDT
In force
62 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Winkler County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jul 21, 10:00 PM CDTThunderstorm Wind 51Winkler, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 3.0 hours before the alert went out and 81 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 1990-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 731 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 1990-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
731 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1958 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 220259
SVRMAF
TXC495-220400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
958 PM CDT SAT JUL 21 1990
 
THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST TEXAS
 
   ...CENTRAL AND WESTERN WINKLER COUNTY
 
AT 955PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
HAIL...VERY HEAVY RAIN AND STRONG GUSTY WINDS JUST EAST OF THE CITY OF
WINK AND JUST SOUTH OF THE CITY OF KERMIT.
 
THIS THUNDERSTORM IS MOVING SOUTHWEST AT 10 MILES AN HOUR.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  D_O NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, Jul 21, 9:45 PM CDT, 13 minutes before
TXZ007-008-010>018-024-034-050>054-NMZ013-220335-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MIDLAND TX
925 PM CDT SAT JUL 22 1990

...HEAVY THUNDERSTORMS MOVING INTO SOUTHEAST NEW MEXICO AND WESTERN
PERMIAN BASIN...

AT 925 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN WERE WEST TO NORTH
OF HOBBS NEW MEXICO...AND FROM NEAR WINK TO CRANE.

OTHER THUNDERSTORMS WERE WEST THROUGH EAST OF LUBBOCK AND EAST OF
EL PASO.

MOVEMRENT WAS SOUTH AT 15 MILES AN HOUR.

Nearby

Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.