Alert archive / Oklahoma / Tornado Warnings in 1992

Tornado Warning 22, NWS Norman, OK

May 11, 1992Bryan County, Oklahoma

NWS Norman, OK issued this tornado warning at May 11, 1992, 4:27 PM CDT for Bryan County, Oklahoma. It was in force for 48 min. 3 reports 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 11, 1992, 4:27 PM CDT (21:27 UTC)
Expired
May 11, 1992, 5:15 PM CDT
In force
48 min
Issued by
NWS Norman, OK
Area
Whole counties

County Bryan County, OK

The radar

The Norman radar (KTLX), 179 km from the middle of the area, began a volume at 21:30 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.

What was reported inside it

TimeReportWhereRemark
May 11, 5:10 PM CDTHail 2Bryan, OK
May 11, 5:25 PM CDTTornado F2Bryan, OK
May 11, 5:25 PM CDTHail 4.5Bryan, 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, 9.5 hours before the alert went out and 175 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 12:00Z on 1992-05-11Temperature 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, Norman, OK at 12:00Z on 1992-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -129 square meters per square second.19395878Sfc1 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
736 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
-129 m²/s²
0-3 km storm-relative helicity
-53 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 112128
TOROKC
OKC013-112215-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
427 PM CDT MON MAY 11 1992
 
THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  515 PM CDT
FOR THE FOLLOWING OKLAHOMA LOCATIONS...
 
IN SOUTHEAST OKLAHOMA
 
   ...WESTERN BRYAN COUNTY
 
AT 427 PM CDT RADAR INDICATED A DEVELOPING TORNADO NEAR THE
BRYAN/MARSHALL COUNTY LINE OVER LAKE TEXOMA MOVING TOWARD THE EAST AT
20 MILES PER HOUR. PERSONS IN MEAD...KIERSEY...DURANT...AND ARMSTRONG
ARE NEAR THE PROJECTED PATH OF THIS DEVELOPING TORNADO AND SHOULD TAKE
COVER NOW.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.

What forecasters said that day

The local office's own words before this tornado 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, May 11, 1:20 PM CDT, 3 hours 7 minutes before
TXZ019-020-111915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
119 PM CDT MON MAY 11 1992

...TORNADO WATCH IN EFFECT UNTIL 800 PM CDT TONIGHT FOR COTTON
COUNTY OF SOUTH CENTRAL OKLAHOMA...

AT 118 PM THE WICHITA FALLS RADAR SHOWED STRONG THUNDERSTORMS
DEVELOPING RAPIDLY ACROSS PARTS OF CENTRAL AND SOUTH CENTRAL OKLAHOMA
FROM WEST OF STILLWATER EXTENDING SOUTHEAST TO STONEWALL AND ARDMORE.

MOVEMENT OF THUNDERSTORMS W[AS TO THE NORTHEAST AT 25 MPH.

NO NORTH CENTRAL TEXAS COUNTIES ARE INCLUDED IN THE TORNADO WATCH
AREA. THE TORNADO WATCH AREA GENERALLY COVERS MUCH OF CENTRAL...
EASTERN AND SOUTHEAST OKLAHOMA.
Local storm report, May 11, 2:13 PM CDT, 2 hours 14 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
215 PM MON MAY 11 1992

TIME(CDT)        COUNTY       LOCATION / REPORT

150 PM          PAYNE        NICKLE TO QUARTER HAIL 1 N OF COYLE.
!
130 PM          MCCLAIN      NICKLE SIZE HAIL 1/2 S OF BYERS.

124 PM          LOGAN        QUARTER SIZE HAIL 1 N OF GUTHRIE.

125 PM          MURRAY       DIME SIZE HAIL IN DAVIS.
Special weather statement, May 11, 2:18 PM CDT, 2 hours 9 minutes before
TXZ019-020-112015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
218 PM CDT MON MAY 11 1992

...TORNADO WATCH IN EFFECT UNTIL 800 PM TONIGHT FOR COTTON COUNTY OF
SOUTH CENTRAL OKLAHOMA...

...TORNADO WATCH IN EFFECT UNTIL 900 PM TONIGHT FOR THE FOLLOWING
NORTH CENTRAL TEXAS COUNTIES ARCHER...JACK...YOUNG...CLAY AND
MONTAGUE...

AT 215 PM THE WICHITA FALLS RADAR SHOWED STRONG THUNDERSTORMS...
SOME SEVERE...FROM NORTHWEST OF MCALESTER OKLAHOMA NEAR DUSTIN
EXTENDING SOUTHWEST TO ARDMORE AND EAST OF WAURIKA INTO NORTH CENTRAL
TEXAS NEAR DENTON.

MOVEMENT OF THUNDERSTORMS NORTHEAST AT 25 MPH.

RESIDENTS OF MONTAGUE COUNTY NEAR SPANISH FORT AND ILLINOIS BEND
SHOULD BE ESPECIALLY ALERT AS A VERY INTENSE THUNDERSTORM WAS MOVING
ALONG THE NORTHERN BORDER OF MONTAGUE COUNTY. REMEMBER TORNADO WATCH
MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES TO DEVELOP IN AND CLOSE
TO THE WATCH AREA.

STAY TUNED TO NOAA WEATSHER RADIO FOR STATEMSNTS AND POSSIBLE WARNINGS.
Local storm report, May 11, 2:30 PM CDT, 1 hour 57 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
230 PM MON MAY 11 1992

DELAYED REPORTS FOR SUNDAY MAY 10, 1992...

TIME(CDT)        COUNTY       LOCATION / REPORT

320 PM          BECKHAM      HAIL UP TO QUARTER SIZE IN ERICK.

700 PM          CADDO        NICKEL SIZE HAIL 2 NE OF ANADARKO.

445 PM          LOGAN        NICKEL SIZE HAIL 1/2 N OF CO. LINE AND 2 W
                             OF HWY 77.

430 PM          CANADIANt     DIME SIZE HAIL 5 ENE OF EL RENO.
Special weather statement, May 11, 2:31 PM CDT, 1 hour 56 minutes before
OKC083-112030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
230 PM CDT MON MAY 11 1992

THE SEVERE THUNDERSTORM WARNING WHICH WAS IN EFFECT UNTIL 245 PM FOR
LOGAN COUNTY HAS BEENR CANCELLED. THE SEVERE THUNDERSTORM HAS MOVED
EASTWARD INTO CENTRAL PAYNE COUNTY.
Special weather statement, May 11, 3:26 PM CDT, 1 hour 1 minute before
TXZ019-020-112130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
326 PM CDT MON MAY 11 1992

...TORNADO WATCH IN EFFECT UNTIL 800 PM TONIGHT FOR COTTON COUNTY OF
SOUTH CENTRAL OKLAHOMA...

...TORNADO WATCH IN EFFECT UNTIL 900 PM FOR THE FOLLOWING NORTH
CENTRAL TEXAS COUNTIES ARCHER...CLAY...JACK...MONTAGUE AND YOUNG...

AT 325 PM THE WICHITA FALLS RADAR SHOWED THUNDERSTORMS...SOME
SEVERE...BETWEEN MUSKOGEE AND MARIETTA OF OKLAHOMA.

MOVEMENT OF THUNDERSTORMS NORTHEAST AT 25 MPH.

OTHER THUNDERSTORMS WERE DEVELOPING FROM EAST OF DECATUR EXTENDING
SOUTHWEST TO MINERAL WELLS. MOVEMENT OF THUNDERSTORMS NORTHEAST
AT 25 MPH.

MOST OF THE THUNDERSTORM ACTIVITY WAS WELL EAST OF THE WICHITA FALLS
AREA. MONTAGUE AND JACK COUNTIES SHOULD REMAIN ON ALERT TO RAPIDLY
DEVELOPING THUNDERSTORMS OVER THE NEXT FEW HOURS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 7:12 PM CDTSevere Thunderstorm WarningOUNKay, Noble63 min
May 10, 7:56 PM CDTSevere Thunderstorm WarningOUNCanadian, Grady49 min
May 10, 8:36 PM CDTSevere Thunderstorm WarningOUNOklahoma54 min
May 10, 8:42 PM CDTSevere Thunderstorm WarningOUNGarfield48 min
May 10, 9:24 PM CDTSevere Thunderstorm WarningOUNLogan, Oklahoma66 min
May 10, 9:30 PM CDTSevere Thunderstorm WarningOUNKay, Noble60 min
May 10, 10:18 PM CDTSevere Thunderstorm WarningOUNPottawatomie57 min
May 11, 1:15 PM CDTSevere Thunderstorm WarningOUNMcClain, Pontotoc, Pottawatomie, Seminole45 min
May 11, 1:22 PM CDTSevere Thunderstorm WarningOUNMurray53 min
May 11, 1:29 PM CDTTornado WarningOUNGarvin, Pontotoc31 min
May 11, 1:39 PM CDTSevere Thunderstorm WarningOUNJefferson51 min
May 11, 1:45 PM CDTSevere Thunderstorm WarningOUNLogan, Payne60 min
May 11, 1:45 PM CDTSevere Thunderstorm WarningOUNJefferson60 min
May 11, 1:55 PM CDTTornado WarningOUNPontotoc50 min
May 11, 2:15 PM CDTSevere Thunderstorm WarningOUNHughes60 min
May 11, 2:21 PM CDTSevere Thunderstorm WarningOUNLove69 min
May 11, 2:37 PM CDTSevere Thunderstorm WarningOUNJohnston, Murray68 min
May 11, 2:45 PM CDTTornado WarningOUNCoal, Pontotoc45 min
May 11, 3:15 PM CDTSevere Thunderstorm WarningOUNHughes45 min
May 11, 3:26 PM CDTSevere Thunderstorm WarningOUNLove, Marshall64 min
May 11, 3:45 PM CDTTornado WarningOUNCoal45 min
May 11, 4:19 PM CDTTornado WarningOUNAtoka36 min
May 11, 4:30 PM CDTSevere Thunderstorm WarningOUNCoal60 min
May 11, 4:37 PM CDTSevere Thunderstorm WarningOUNGrant, Kay68 min
May 11, 4:50 PM CDTSevere Thunderstorm WarningOUNAtoka55 min
May 11, 4:58 PM CDTTornado WarningOUNKay47 min
May 11, 5:03 PM CDTTornado WarningOUNBryan42 min
May 11, 5:06 PM CDTSevere Thunderstorm WarningOUNMarshall54 min
May 11, 5:21 PM CDTSevere Thunderstorm WarningOUNPushmataha69 min
May 11, 5:44 PM CDTSevere Thunderstorm WarningOUNChoctaw61 min
May 11, 5:45 PM CDTSevere Thunderstorm WarningOUNKay30 min
May 11, 5:58 PM CDTSevere Thunderstorm WarningOUNBryan47 min
May 11, 6:28 PM CDTSevere Thunderstorm WarningOUNPushmataha47 min

Nearby

Tornado Warnings in Oklahoma, 1992Every tornado warning in 1992Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.