Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 4, NWS Norman, OK

January 16, 1990Roger Mills County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jan 16, 1990, 11:56 AM CST for Roger Mills County, Oklahoma. It was in force for 49 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
Jan 16, 1990, 11:56 AM CST (17:56 UTC)
Expired
Jan 16, 1990, 12:45 PM CST
In force
49 min
Issued by
NWS Norman, OK
Area
Whole counties

County Roger Mills County, OK

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
Jan 16, 12:05 PM CSTHail 0.75Roger Mills, OK

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, 5.9 hours before the alert went out and 189 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, Amarillo Airport, TX at 12:00Z on 1990-01-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Amarillo Airport, TX at 12:00Z on 1990-01-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
139 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 KOKC 161757
SVROKC
OKC129-161845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1156 AM CST TUE JAN 16 1990
 
THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM CST
FOR THE FOLLOWING OKLAHOMA LOCATIONS...
 
IN NORTHWEST OKLAHOMA
 
   ...ROGER MILLS COUNTY
 
AT 1156 AM A SEVERE THUNDERSTORM WAS INDICATED 15 MILES SOUTHWEST OF
CHEYENNE MOVING NORTHEAST AT 20 MPH. LARGE HAIL AND STRONG WINDS ARE
POSSIBLE WITH THIS STORM.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO 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, Jan 16, 10:46 AM CST, 1 hour 10 minutes before
TXZ019-020-161830

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
1045 AM CDT TUE JAN 16 1990

LATE THIS MORNING SHOWERS AND ISOLATED VERY STRONG THUNDERSTORMS
WERE DEVELOPING ALONG A SLOW MOVING COLD FRONT THAT STRETCHED
ACROSS THE EASTERN TEXAS PANHANDLE INTO THE TEXAS BIG BEND.

THE MAJORITY OF PRECIPTATION WAS FALLING IN AN AREA SOME 90 MILES WIDE
THAT EXTENDED FROM GAGE OKLAHOMA TO SOUTH OF ABILENE.

THE STRONGEST THUNDERSTORMS WITHIN THIS PORTION OF NORTH TEXAS WERE
LOCATED TO THE WEST AND SOUTHWEST OF VERNON. THESE STORMS WERE MOVING
TO THE NORTHEAST AT 25 MPH AND WILL LIKELY MOVE INTO THE VERNON AREA
DURING THE NEXT 15 TO 20 MINUTES. THESE STORMS AR6E PRODUCING VERY
HEAVY RAINS AND COULD ALSO PRODUCE SOME LIGHTNING AND STRONG GUSTY
WINDS.
Special weather statement, Jan 16, 11:27 AM CST, 29 minutes before
TXZ019-020-161830

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
1130 AM CDT TUE JAN 16 1990

AT 1125 AM CST THE WICHITA FALLS RADAR CONTINUED TO SHOW AN AREA OF
SHOWERS AND ISOLATED STRONG THUNDERSTORMS STRETCHING FROM GAGE
OKLAHOMA TO SOUTHEAST OF ABILENE.

THE HEAVIEST RAINS FALLING IN THIS PORTION OF NORTH TEXAS WERE
LOCATED ACROSS NORTHERN AND SOUTHEASTERN WILBARGER COUNTY.

MOVEMENT OF ALL ACTIVITY WAS TO ~THE NORTHEAST AT 25 MILES AN HOUR.

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 16, 11:47 AM CSTSevere Thunderstorm WarningOUNDewey43 min
Jan 16, 12:23 PM CSTSevere Thunderstorm WarningOUNMajor52 min
Jan 16, 1:03 PM CSTSevere Thunderstorm WarningOUNAlfalfa57 min
Jan 16, 1:53 PM CSTSevere Thunderstorm WarningOUNGrant67 min
Jan 16, 3:11 PM CSTSevere Thunderstorm WarningOUNComanche, Tillman64 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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.