Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 41, NWS Tulsa, OK
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
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 12, 12:40 AM CDT | Hail 1.75 | Pawnee, 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.
- 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
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 CLAREMORELocal 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 CLAREMORESpecial 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 7:04 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage | 41 min |
| Apr 11, 7:20 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 55 min |
| Apr 11, 7:29 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 46 min |
| Apr 11, 7:44 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 61 min |
| Apr 11, 8:08 PM CDT | Severe Thunderstorm Warning | TSA | Mayes | 67 min |
| Apr 11, 8:12 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa, Wagoner | 48 min |
| Apr 11, 8:30 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 60 min |
| Apr 11, 8:41 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 64 min |
| Apr 11, 8:51 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 54 min |
| Apr 11, 9:01 PM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 44 min |
| Apr 11, 9:18 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 57 min |
| Apr 11, 9:26 PM CDT | Severe Thunderstorm Warning | TSA | Rogers | 49 min |
| Apr 11, 10:15 PM CDT | Severe Thunderstorm Warning | TSA | Rogers | 45 min |
| Apr 12, 1:32 AM CDT | Severe Thunderstorm Warning | TSA | Rogers | 43 min |
| Apr 12, 2:00 AM CDT | Severe Thunderstorm Warning | TSA | Mayes | 60 min |
| Apr 12, 3:02 AM CDT | Severe Thunderstorm Warning | TSA | Rogers | 43 min |
| Apr 12, 3:35 AM CDT | Flash Flood Warning | TSA | Rogers | 3 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.