Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 72, NWS Amarillo, TX

May 31, 1990Ochiltree County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 31, 1990, 3:47 PM CDT for Ochiltree County, Texas. It was in force for 58 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: May 31, 1990, 3:47 PM CDT (20:47 UTC)
Expired: May 31, 1990, 4:45 PM CDT
In force: 58 min
Issued by: NWS Amarillo, TX
Area: Whole counties

County Ochiltree 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

Time	Report	Where	Remark
May 31, 4:30 PM CDT	Tornado F1	Ochiltree, 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.8 hours before the alert went out and 141 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2 J/kg
Mixed-layer CIN: -515 J/kg
Mixed-layer LCL: 1381 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 253 m²/s²
0-3 km storm-relative helicity: 347 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 
TTAA00 KAMA 312049
SVRAMA
TXC357-312145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
347 PM CDT THU MAY 31 1990
 
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN THE TEXAS PANHANDLE
          ...OCHILTREE
 
AT 347 PM CDT..RADAR INDICATED A SEVERE THUNDERSTORM IN EXTREME
SOUTHWESTERN OCHILTREE COUNTY. THIS THUNDERSTORM WILL LIKELY PRODUCE
LARGE HAIL AS IT MOVES TO THE NORTHEAST AT 25 MPH.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCESM UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
SC

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 31, 5:04 PM CDT	Tornado Warning	AMA	Ochiltree	56 min
May 31, 6:06 PM CDT	Severe Thunderstorm Warning	AMA	Briscoe	69 min
May 31, 6:34 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Ochiltree	56 min
May 31, 6:36 PM CDT	Severe Thunderstorm Warning	AMA	Donley	69 min
May 31, 6:41 PM CDT	Tornado Warning	AMA	Ochiltree	49 min
May 31, 6:45 PM CDT	Tornado Warning	AMA	Hansford	45 min

Nearby

Severe Thunderstorm Warnings in Texas, 1990 Every 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.