Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 91, NWS Norman, OK

April 10, 1990Lincoln County, Payne County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 10, 1990, 12:07 AM CDT for Lincoln County, Payne County, Oklahoma. It was in force for 53 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 10, 1990, 12:07 AM CDT (05:07 UTC)
Expired
Apr 10, 1990, 1:00 AM CDT
In force
53 min
Issued by
NWS Norman, OK
Area
Whole counties

Counties Lincoln County, OK, Payne 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
Apr 10, 12:32 AM CDTHail 0.88Lincoln, 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 00:00Z, 5.1 hours before the alert went out and 86 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, Norman, OK at 00:00Z on 1990-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 528 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, Norman, OK at 00:00Z on 1990-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 square meters per square second.1939587897Sfc1 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
528 J/kg
Mixed-layer CIN
-177 J/kg
Mixed-layer LCL
620 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
320 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

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, Apr 9, 6:27 PM CDT, 5 hours 40 minutes before
TXZALL-100030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
628 PM CDT MON APR 9 1990

A TORNADO WATCH REMAINS IN EFFECT FOR THIS PORTION OF NORTH CENTRAL
TEXAS AND SOUTHWESTERN OKLAHOMA UNTIL 10 PM CDT THIS MONDAY AFTERNOON
AND EVENING...

AT 625 PM CDT RADAR INDICATED LIGHT RAIN SHOWERS IN YOUNG AND JACK
COUNTIES. VERY STRONG THUNDERSTORMS WERE NORTH OF ABILENE AND BETWEEN
LUBBOCK AND CHILDRESS. MOVEMENT WAS NORTHEAST AT 30 MPH. IN OKLAHOMA
SEVERE THUNDERSTORMS WERE NORTH AND EAST OF GAGE MOVING EAST AT 30
MPH.

REMEMBER..A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS TO DEVELOP IN AND CLOSE TO THE
WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE ALERT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS.
Local storm report, Apr 9, 7:11 PM CDT, 4 hours 56 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
710 PM CDT MON APR 9 1990

TIME(CDT)    COUNTY           EVENT

555 PM       WOODS            NICKEL SIZED HAIL ON THE WEST SIDE OF ALVA.
620 PM       HARPER           ROTATING WALL CLOUD 4 TO 5 MILES NORTH OF
                              FORT SUPPLY.
625 PM       HARPER           NICKEL SIZED HAIL 18 MILES SOUTHEAST OF
                              BUFFALO.
645 PM       WOODS            QUARTER SIZED HAIL AT WAYNOKA.
650 PM       ALFALFA          .75 INCH HAIL 1/4 MILE EAST OF THE ALFALFA
                              COUNTY-WOODS COUNTY LINE ON HIGHWAY 64.
705 PM       ALFALFA          GOLFBALL SIZED HAIL NORTH AND WEST OF
                              CHEROKEE.
Special weather statement, Apr 9, 10:35 PM CDT, 1 hour 32 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 7:01 PM CDTSevere Thunderstorm WarningOUNAlfalfa44 min
Apr 9, 7:45 PM CDTSevere Thunderstorm WarningOUNGarfield, Grant60 min
Apr 9, 7:45 PM CDTSevere Thunderstorm WarningOUNTillman60 min
Apr 9, 8:30 PM CDTSevere Thunderstorm WarningOUNGarfield60 min
Apr 9, 8:56 PM CDTSevere Thunderstorm WarningOUNGreer, Kiowa64 min
Apr 9, 9:07 PM CDTSevere Thunderstorm WarningOUNJackson68 min
Apr 9, 9:10 PM CDTSevere Thunderstorm WarningOUNTillman65 min
Apr 9, 9:54 PM CDTSevere Thunderstorm WarningOUNComanche, Cotton66 min
Apr 9, 9:58 PM CDTSevere Thunderstorm WarningOUNJefferson62 min
Apr 9, 10:07 PM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher, Logan, Noble68 min
Apr 9, 10:07 PM CDTSevere Thunderstorm WarningOUNPayne68 min
Apr 9, 10:07 PM CDTSevere Thunderstorm WarningOUNBlaine, Dewey68 min
Apr 9, 10:26 PM CDTTornado WarningOUNCotton49 min
Apr 9, 10:57 PM CDTSevere Thunderstorm WarningOUNStephens48 min
Apr 9, 11:05 PM CDTSevere Thunderstorm WarningOUNCarter, Love55 min
Apr 9, 11:15 PM CDTSevere Thunderstorm WarningOUNKingfisher, Logan45 min
Apr 9, 11:57 PM CDTSevere Thunderstorm WarningOUNCarter, Love63 min
Apr 10, 12:12 AM CDTSevere Thunderstorm WarningOUNCarter48 min
Apr 10, 12:39 AM CDTSevere Thunderstorm WarningOUNJohnston, Marshall66 min
Apr 10, 1:00 AM CDTSevere Thunderstorm WarningOUNCarter, Love60 min
Apr 10, 1:30 AM CDTSevere Thunderstorm WarningOUNAtoka, Bryan45 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.