Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 252, NWS Norman, OK

June 6, 1992Seminole County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 6, 1992, 1:00 AM CDT for Seminole County, Oklahoma. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jun 6, 1992, 1:00 AM CDT (06:00 UTC)
Expired
Jun 6, 1992, 1:45 AM CDT
In force
45 min
Issued by
NWS Norman, OK
Area
Whole counties

County Seminole County, OK

The radar

The Norman radar (KTLX), 63 km from the middle of the area, began a volume at 06:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.0 hours before the alert went out and 72 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 1992-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 604 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 1992-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
604 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KOKC 060603
SVROKC
OKC133-060645-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
100 AM CDT SAT JUN 6 1992
 
THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 AM CDT
FOR THE FOLLOWING OKLAHOMA LOCATIONS...
 
IN CENTRAL OKLAHOMA
 
   ...SEMINOLE COUNTY
 
AT 1258 AM RADAR INDICATED SEVERE THUNDERSTORMS EXTENDING FROM
SEMINOLE TO NEAR KONOWA. MOVEMENT WAS TOWARD THE EAST AT 30 MILES AN
HOUR. LARGE HAIL AND DAMAGING WINDS CAN BE EXPECTED FROM THIS STORM AS
IT MOVES TOWARD WEWOKA...CROMWELL...AND SASAKWA.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND 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

Local storm report, Jun 5, 9:56 PM CDT, 3 hours 4 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
955 PM FRI JUN 5 1992

TIME(CDT)/DATE        COUNTY        LOCATION / REPORT

925 PM                BECKHAM       DIME SIZE HAIL 8 MILES SOUTH AND
                                    1 1/2 MILES WEST OF SAYRE.
Special weather statement, Jun 5, 10:01 PM CDT, 2 hours 59 minutes before
TXZ019-020-060400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
1000 PM CDT FRI JUN 5 1992

...A TORNADO WATCH IS IN EFFECT UNTIL MIDNIGHT FOR THE FOLLOWING NORTH
CENTRAL TEXAS COUNTIES...FOARD...HARDEMAN AND WILBARGER...

...A SEVERE THUNDERSTORM WATCH IN IN EFFECT FOR HARDEMAN...FOARD...KNOX...
BAYLOR...WILBARGER...WICHITA...ARCHER...YOUNG...CLAY...JACK...AND MONTAGUE
COUNTIES OF NORTH CENTRAL TEXAS UNTIL 200AM CDT SATURDAY MORNING...

BY 10 PM CDT...AN ISOLATED THUNDERSTORM HAD MOVED ALONG AND JUST NORTH
OF THE RED RIVER NEAR BURKBURNETT...THE STORNGEST PORTION OF THIS
THUNDERSTORM WAS OCCURRING IN TILLMAN COUNTY OKLAHOMA...HOWEVER...
DOWNDRAFT/OUTFLOW WINDS MAY AFFECT THE EXTREME NORTHERN FRINGES OF
WICHITA COUNTY WITH GUSTY WINDS. MOVEMENT WAS SLIGHTLY SOUTH OF
EAST AT 15 MPH.

ELSEWHERE...THE LEADING EDGE OF A LARGE AREA OF THUNDERSTORMS WAS
OCCURRING GENERALLY ALONG OR WEST OF A HOBART...CHILDRESS...MATADOR
LINE. MOVEMENT WAS TOWARDS THE EAST AT 30 MPH. POSSIBLE SEVERE
THUNDERSTORMS WERE NOTED JUST NORTH AND WEST OF CHILDRESS.

IF PRESENT TRENDS CONTINUE...A SEVERE THUNDERSTORM WARNING WILL LIKELY
BE ISSUED OF PERSONS IN HARDEMAN COUNTY IN THE NEXT HOUR.
Local storm report, Jun 5, 10:19 PM CDT, 2 hours 41 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1015 PM FRI JUN 5 1992

TIME(CDT)/DATE        COUNTY        LOCATION / REPORT

943 PM                GREER         QUARTER SIZE HAIL ON THE WEST SIDE
                                    OF MANGUM.

955 PM                COMANCHE      DIME SIZE HAIL ON THE EAST SIDE OF
                                    LAWTON.

955 PM                KIOWA         DIME SIZE HAIL 5 MILES SOUTH OF LONE
                                    WOLF.

1001 PM               KIOWA         DIME SIZE HAIL 1 MILE NORTH OF
                                    HOBART.

1002 PM               KIOWA         DIME SIZE HAIL 1 MILE: WEST OF
                                    HOBART.
Local storm report, Jun 5, 10:33 PM CDT, 2 hours 27 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1035 PM FRI JUN 5 1992

TIME(CDT)/DATE        COUNTY        LOCATION / REPORT

1032 PM               STEPHENS0      BASEBALL SIZE HAIL 3 MILES NORTHEAST
                                    OF DUNCAN.
Local storm report, Jun 5, 11:25 PM CDT, 1 hour 35 minutes before
LOCAL STORM REPORT...CORRECTION TO DIRECTION...
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1135 PM FRI JUN 5 1992

TIME(CDT)/DATE        COUNTY        LOCATION / REPORT

1032 PM               STEPH-ENS      BASEBALL SIZE HAIL 3 MILES NORTHWEST
                                    OF DUNCAN.
Local storm report, Jun 5, 11:39 PM CDT, 1 hour 21 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1135 PM FRI JUN 5 1992

TIME(CDT)/DATE        COUNTY        LOCATION / REPORT

1112 PM               COMANCHE      GOLFBALL SIZE HAIL IN STERL/ING.

1140 PM               COTTON        QUARTER SIZE HAIL IN TEMPLE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 8:18 PM CDTSevere Thunderstorm WarningOUNTillman57 min
Jun 5, 8:52 PM CDTSevere Thunderstorm WarningOUNBeckham53 min
Jun 5, 9:06 PM CDTSevere Thunderstorm WarningOUNGreer, Harmon54 min
Jun 5, 9:11 PM CDTSevere Thunderstorm WarningOUNTillman64 min
Jun 5, 9:42 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita63 min
Jun 5, 9:44 PM CDTSevere Thunderstorm WarningOUNBeckham31 min
Jun 5, 9:53 PM CDTSevere Thunderstorm WarningOUNGrady52 min
Jun 5, 10:11 PM CDTSevere Thunderstorm WarningOUNComanche, Stephens64 min
Jun 5, 10:49 PM CDTSevere Thunderstorm WarningOUNWoods, Woodward41 min
Jun 5, 10:51 PM CDTTornado WarningOUNStephens54 min
Jun 5, 11:51 PM CDTSevere Thunderstorm WarningOUNCarter, Stephens39 min
Jun 6, 12:26 AM CDTSevere Thunderstorm WarningOUNCarter, Murray49 min
Jun 6, 2:49 AM CDTSevere Thunderstorm WarningOUNBryan, Choctaw41 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1992Every severe thunderstorm warning in 1992

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.