Alert archive / New Mexico / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 20, NWS Midland/Odessa, TX

April 21, 1990Chaves County, New Mexico

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Apr 21, 1990, 8:45 PM MDT for Chaves County, New Mexico. It was in force for 60 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
Apr 21, 1990, 8:45 PM MDT (02:45 UTC)
Expired
Apr 21, 1990, 9:45 PM MDT
In force
60 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Chaves County, NM

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
Apr 21, 8:45 PM MDTHail 1Chaves, NM

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

El Paso Intl Airport, TX (KELP), launched 00:00Z, 2.8 hours before the alert went out and 251 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, El Paso Intl Airport, TX at 00:00Z on 1990-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 385 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, El Paso Intl Airport, TX at 00:00Z on 1990-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 260 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
385 J/kg
Mixed-layer CIN
-181 J/kg
Mixed-layer LCL
2307 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
260 m²/s²
0-3 km storm-relative helicity
465 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 KABQ 220257 COR
SVRROW
BULLETIN-EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING CORRECTED
NATIONAL WEATHER SERVICE ALBUQUERQUE, NM
857 PM MDT SAT APR 21 1990
NMC005-220345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROSWELL NM
ISSUED BY ALBUQUERQUE NM
845 PM MDT SAT APR 21 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 PM MDT
FOR PEOPLE...

IN SOUTHEAST NEW MEXICO

   ...CENTRAL AND SOUTHERN CHAVES COUNTY...INCLUDING THE
      CITY OF ROSWELL...

AT 845 PM MDT...A CLUSTER OF SEVERE THUNDERSTORMS WAS INDICATED
BY RADAR JUST TO THE NORTH OF THE CITY OF ROSWELL. THE THUNDER-
STORMS ARE SHOWING LITTLE MOVEMNT AND APPEAR TO CONTAIN LARGE HAIL
AND HEAVY RAIN.

THE THUNDERSTORMS WHICH HAVE BEEN APPROACHING ROSWELL FROM THE
SOUTHWEST WILL MERGE WITH THE SEVERE THUNDERSTORM CLUSTER...
RESULTING IN MORE SEVERE WEATHER.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS 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 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, Apr 21, 3:41 PM MDT, 5 hours 4 minutes before
TXZ007-008-010>018-024-034-050>054-NMZ013-212240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MIDLAND TX
443 P  CDT SAT APR 21 1990

AT 430 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN WERE WIDELY
SCATTERED FROM NORTH OF ALPINE TO NORTHWEST OF VAN HORN.

HEAVIEST RAINFALL WAS LOCATED 15 MILES SOUTH OF SARAGOSA...AND 5
MILES NORTH OF FORT DAVIS. MOVEMENT WAS TO THE NORTHEAST AT 15 MILES
AN HOUR.

THESE THUNDERSTORMS CAN CAUSE HIGH WINDS...SMALL HAIL...DANGEROUS
LIGHTNING...AND FLOODING OF LOW LYING AREAS.

IF YOUR LIFE SEEMS THREATENED SEEK A PLACE OF SAFETY IMMEDIATELY.
STAY TUNNED TO YOUR LOCAL RADIO...TV...OR NOAA WEATHER RADIO FOR
FURTHER STATEMENTS OR WARNINGS.
Special weather statement, Apr 21, 3:45 PM MDT, 5 hours before
TXZ007-008-010>018-024-034-050>054-NMZ013-212240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MIDLAND TX
443 PM CDT SAT APR 21 1990

AT 430 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN WERE WIDELY
SCATTERED FROM NORTH OF ALPINE TO NORTHWEST OF VAN HORN.

HEAVIEST RAINFALL WAS LOCATED 15 MILES SOUTH OF SARAGOSA...AND 5
MILES NORTH OF FORT DAVIS. MOVEMENT WAS TO THE NORTHEAST AT 15 MILES
AN HOUR.

THESE THUNDERSTORMS CAN CAUSE HIGH WINDS...SMALL HAIL...DANGEROUS
LIGHTNING...AND FLOODING OF LOW LYING AREAS.

IF YOUR LIFE SEEMS THREATENED SEEK A PLACE OF SAFETY IMMEDIATELY.
STAY TUNNED TO YOUR LOCAL RADIO...TV...OR NOAA WEATHER RADIO FOR
FURTHER STATEMENTS OR WARNINGS.
Special weather statement, Apr 21, 5:40 PM MDT, 3 hours 5 minutes before
TXZ007-008-010>018-024-034-050>054-NMZ013-220040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MIDLAND TX
640 PM CDT SAT APR 21 1990

AT 635 PM CDT...A THUNDERSTORM WITH VERY HEAVY RAIN WAS LOCATED 15
EAST OF FORT DAVIS IN JEFF DAVIS COUNTY.

THUNDERSTORMS AND RAINSHOWERS WERE SCATTERED FROM THE TEXAS BIG BEND
TO SOUTHERN NEW MEXICO.

THESE THUNDERSTORMS CAN CAUSE HIGH WINDS...SMALL HAIL...DANGEROUS
LIGHTNING...AND FLOODIrNG OF LOW LYING AREAS.

STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO AND TELEVISION FOR
UPDATES AND POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 8:00 PM MDTSevere Thunderstorm WarningMAFChaves45 min
Apr 21, 9:26 PM MDTFlash Flood WarningMAFChaves64 min
Apr 21, 9:26 PM MDTTornado WarningMAFChaves64 min
Apr 22, 4:40 PM MDTSevere Thunderstorm WarningMAFChaves65 min
Apr 22, 5:45 PM MDTSevere Thunderstorm WarningMAFChaves60 min

Nearby

Severe Thunderstorm Warnings in New Mexico, 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.