Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 7, NWS Norman, OK

January 16, 1990Grant County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jan 16, 1990, 1:53 PM CST for Grant County, Oklahoma. It was in force for 67 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, 1:53 PM CST (19:53 UTC)
Expired: Jan 16, 1990, 3:00 PM CST
In force: 67 min
Issued by: NWS Norman, OK
Area: Whole counties

County Grant 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

Time	Report	Where	Remark
Jan 16, 2:02 PM CST	Hail 0.75	Grant, 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

Norman, OK (KOUN), launched 12:00Z, 7.9 hours before the alert went out and 179 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: 109 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 730 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 254 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, 11:27 AM CST, 2 hours 26 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.

Local storm report, Jan 16, 12:10 PM CST, 1 hour 43 minutes before

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Special weather statement, Jan 16, 12:21 PM CST, 1 hour 32 minutes before

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Local storm report, Jan 16, 12:57 PM CST, 56 minutes before

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Special weather statement, Jan 16, 1:17 PM CST, 36 minutes before

TXZ019-020-161945

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
115 PM CDT TUE JAN 16 1990

AT 110 PM CST THE WICHITA FALLS RADAR CONTINUED TO SHOW A LINE OF
VERY STRONG THUNDERSTORMS STRETCHING FROM THE WICHITA COUNTY LINE
NEAR ELECTRA SOUTHWEST TO BENJAMIN. THE STRONGEST STORMS WITHIN
LINE ARE PRODUCING VERY HEAVY RAINS AND COULD ALSO PRODUCE STRONG
WINDS...SMALL HAIL AND DANGEROUS CLOUD TO GROUND LIGHTNING.

THIS LINE WAS INCLUDED IN AN AREA OF NUMEROUS SHOWERS AND OTHER
ISOLATED VERY STRONG THUNDERSTORMS THAT STRETCHED GENERALLY 60
MILES EITHER SIDE OF A LINE FROM NORTHWEST OF OKLAHOMA CITY SOUTH
TO COMANCHE TEXAS.

MOVEMENT OF INDIVIDUAL SHOWERS AND THUNDERSTORMS WAS TO THE NORTHEAST
AT 25 MPH.

Local storm report, Jan 16, 1:48 PM CST, 5 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
147 PM CST TUE JAN 16 1990

TIME(CST)    COUNTY         EVENT

115 PM       ALFALFA        NICKEL SIZE HAIL IN ALINE
115 PM       ALFALFA        QUARTER SIZE HAIL 1 MILE SOUTH
                            OF ALINE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 16, 11:47 AM CST	Severe Thunderstorm Warning	OUN	Dewey	43 min
Jan 16, 11:56 AM CST	Severe Thunderstorm Warning	OUN	Roger Mills	49 min
Jan 16, 12:23 PM CST	Severe Thunderstorm Warning	OUN	Major	52 min
Jan 16, 1:03 PM CST	Severe Thunderstorm Warning	OUN	Alfalfa	57 min
Jan 16, 3:11 PM CST	Severe Thunderstorm Warning	OUN	Comanche, Tillman	64 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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.