Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 41, NWS Tulsa, OK

April 12, 1992Pawnee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 12, 1992, 12:30 AM CDT for Pawnee County, Oklahoma. It was in force for 60 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 12, 1992, 12:30 AM CDT (05:30 UTC)
Expired
Apr 12, 1992, 1:30 AM CDT
In force
60 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Pawnee County, OK

What was reported inside it

TimeReportWhereRemark
Apr 12, 12:40 AM CDTHail 1.75Pawnee, 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, 5.5 hours before the alert went out and 137 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 1992-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2045 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 1992-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 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
2045 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1305 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 120530
SVRTUL
OKC117-120630-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1230 AM CDT SUN APR 12 1992
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN NORTHEAST OKLAHOMA
 
   ...PAWNEE COUNTY
 
AT 1230 AM THE NATIONAL WEATHER SERVICE RADAR IN TULSA SHOWED A SEVERE
THUNDERSTORM 6 MILES WEST OF MARAMEC MOVING TO THE NORTHEAST AT 20
MILES AN HOUR.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
LARGE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN.  FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.

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, Apr 11, 10:56 PM CDT, 1 hour 34 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
1054 PM CDT SAT APR 11 1992

...REPORTS FROM THIS EVENING...

TIME(CST)       COUNTY         REPORT

530 PM          OSAGE          NICKLE SIZE HAIL AND STRONG WINDS BLEW
                               ONE TENT DOWN AT HULAH DAM

555 PM          OSAGE          GOLFBALL SIZE HAIL AT OKESA

615 PM          WASHINGTON     DIME SIZE HAIL NEAR OCHELATA

615 PM          OTTAWA         DIME SIZE HAIL AT TOLL BOOTH ON WILL
                               ROGERS TURNPIKE JUST INSIDE OKLAHOMA
                               STATE LINE

620 PM          NOWATA         DIME SIZE HAIL 5 MILES NORTH OF LENAPAH

630 PM          CRAIG          NICKLE SIZE HAIL 3 MILES WEST OF
                               CENTRALIA

645 PM          TULSA          QUARTER SIZE HAIL AT SKIATOOK

705 PM          TULSA          QUARTER SIZE HAIL JUST EAST OF SPERRY

715 PM          OSAGE          QUARTER SIZE HAIL 5 MILES SOUTHWEST OF
                               SPERRY

720 PM          DELAWARE       DIME SIZE HAIL 5 MILES EAST OF GROVE

725 PM          DELAWARE       DIME SIZE HAIL AT GROVE

725 PM          CREEK          DIME SIZE HAIL 4 MILES EAST OF MANNFORD

735 PM          DELAWARE       QUARTER SIZE HAIL 8 MILES SOUTH OF GROVE

800 PM          TULSA          GOLFBALL TO BASEBALL SIZE HAIL ACROSS
                               SOUTHEAST TULSA AND BROKEN ARROW

800 PM          CREEK          GOLFBALL SIZE HAIL 3 MILES EAST OF
                               DRUMRIGHT

820 PM          MAYES          DIME SIZE HAIL 3 MILES SOUTH OF
                               PENSACOLA

820 PM          TULSA          GOLFBALL TO BASEBALL SIZE HAIL FROM
                               SOUTHEAST TULSA TO BROKEN ARROW

830 PM          TULSA          GOLFBALL SIZE HAIL AT ONETA

840 PM          ADAIR          DIME SIZE HAIL 4 MILES SOUTH OF WATTS

900 PM          CREEK          DIME SIZE HAIL 10 MILES SOUTH OF BRISTOW

915 PM          WAGONER        NICKLE SIZE HAIL AT PORTER

930 PM          OKMULGEE       DIME SIZE HAIL 3 MILES NORTH OF BEGGS

945 PM          ROGERS         ONE INCH HAIL 5 MILES NORTHEAST OF
                               CLAREMORE

1030 PM         ROGERS         ONE INCH HAIL 8 MILES EAST OF CLAREMORE
Local storm report, Apr 11, 11:12 PM CDT, 1 hour 18 minutes before
STORM REPORT...CORRECTED CST TO CDT...
NATIONAL WEATHER SERVICE TULSA, OK
1111 PM CDT SAT APR 11 1992

...REPORTS FROM THIS EVENING...

TIME(CDT)       COUNTY         REPORT

530 PM          OSAGE          NICKLE SIZE HAIL AND STRONG WINDS BLEW
                               ONE TENT DOWN AT HULAH DAM

555 PM          OSAGE          GOLFBALL SIZE HAIL AT OKESA

615 PM          WASHINGTON     DIME SIZE HAIL NEAR OCHELATA

615 PM          OTTAWA         DIME SIZE HAIL AT TOLL BOOTH ON WILL
                               ROGERS TURNPIKE JUST INSIDE OKLAHOMA
                               STATE LINE

620 PM          NOWATA         DIME SIZE HAIL 5 MILES NORTH OF LENAPAH

630 PM          CRAIG          NICKLE SIZE HAIL 3 MILES WEST OF
                               CENTRALIA

645 PM          TULSA          QUARTER SIZE HAIL AT SKIATOOK

705 PM          TULSA          QUARTER SIZE HAIL JUST EAST OF SPERRY

715 PM          OSAGE          QUARTER SIZE HAIL 5 MILES SOUTHWEST OF
                               SPERRY

720 PM          DELAWARE       DIME SIZE HAIL 5 MILES EAST OF GROVE

725 PM          DELAWARE       DIME SIZE HAIL AT GROVE

725 PM          CREEK          DIME SIZE HAIL 4 MILES EAST OF MANNFORD

735 PM          DELAWARE       QUARTER SIZE HAIL 8 MILES SOUTH OF GROVE

800 PM          TULSA          GOLFBALL TO BASEBALL SIZE HAIL ACROSS
                               SOUTHEAST TULSA AND BROKEN ARROW

800 PM          CREEK          GOLFBALL SIZE HAIL 3 MILES EAST OF
                               DRUMRIGHT

820 PM          MAYES          DIME SIZE HAIL 3 MILES SOUTH OF
                               PENSACOLA

820 PM          TULSA          GOLFBALL TO BASEBALL SIZE HAIL FROM
                               SOUTHEAST TULSA TO BROKEN ARROW

830 PM          TULSA          GOLFBALL SIZE HAIL AT ONETA

840 PM          ADAIR          DIME SIZE HAIL 4 MILES SOUTH OF WATTS

900 PM          CREEK          DIME SIZE HAIL 10 MILES SOUTH OF BRISTOW

915 PM          WAGONER        NICKLE SIZE HAIL AT PORTER

930 PM          OKMULGEE       DIME SIZE HAIL 3 MILES NORTH OF BEGGS

945 PM          ROGERS         ONE INCH HAIL 5 MILES NORTHEAST OF
                               CLAREMORE

1030 PM         ROGERS         ONE INCH HAIL 8 MILES EAST OF CLAREMORE
Special weather statement, Apr 11, 11:30 PM CDT, 1 hour before
OKZ029>033-120600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1130 PM CDT SAT APR 11 1992

...SEVERE THUNDERSTORM WATCH NUMBER 128 CANCELED FOR PARTS OF EASTERN
OKLAHOMA...

THE SEVERE THUNDERSTORM WATCH HAD BEEN IN EFFECT HAS BEEN CANCELED FOR
PARTS OF EASTERN OKLAHOMA. THE FOLLOWING COUNTIES ARE NO LONGER IN THE
SEVERE THUNDERSTORM WATCH...

ADAIR...CHEROKEE...CREEK...MCINTOSH...MUSKOGEE...OKFUSKEE...OKMULGEE...
TULSA...WAGONER...HASKELL...LATIMER...PITTSBURG.

SCATTERED SHOWERS AND THUNDERSTORMS WILL STILL OCCUR IN THESE AREAS
OVERNIGHT BUT THE THREAT OF SEVERE WEATHER HAS DIMINISHED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 7:04 PM CDTSevere Thunderstorm WarningTSACreek, Osage41 min
Apr 11, 7:20 PM CDTSevere Thunderstorm WarningTSATulsa55 min
Apr 11, 7:29 PM CDTSevere Thunderstorm WarningTSADelaware46 min
Apr 11, 7:44 PM CDTSevere Thunderstorm WarningTSACreek61 min
Apr 11, 8:08 PM CDTSevere Thunderstorm WarningTSAMayes67 min
Apr 11, 8:12 PM CDTSevere Thunderstorm WarningTSATulsa, Wagoner48 min
Apr 11, 8:30 PM CDTSevere Thunderstorm WarningTSAAdair60 min
Apr 11, 8:41 PM CDTSevere Thunderstorm WarningTSACreek, Okfuskee64 min
Apr 11, 8:51 PM CDTSevere Thunderstorm WarningTSAMuskogee54 min
Apr 11, 9:01 PM CDTSevere Thunderstorm WarningTSAWagoner44 min
Apr 11, 9:18 PM CDTSevere Thunderstorm WarningTSAOkmulgee57 min
Apr 11, 9:26 PM CDTSevere Thunderstorm WarningTSARogers49 min
Apr 11, 10:15 PM CDTSevere Thunderstorm WarningTSARogers45 min
Apr 12, 1:32 AM CDTSevere Thunderstorm WarningTSARogers43 min
Apr 12, 2:00 AM CDTSevere Thunderstorm WarningTSAMayes60 min
Apr 12, 3:02 AM CDTSevere Thunderstorm WarningTSARogers43 min
Apr 12, 3:35 AM CDTFlash Flood WarningTSARogers3 hr

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.