Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 96, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 15, 1992, 5:43 PM CDT for Okmulgee County, Oklahoma. It was in force for 62 min. 2 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 15, 1992, 5:43 PM CDT (22:43 UTC)
- Expired
- May 15, 1992, 6:45 PM CDT
- In force
- 62 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Okmulgee County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 15, 5:45 PM CDT | Hail 1.75 | Okmulgee, OK | |
| May 15, 6:30 PM CDT | Hail 0.75 | Okmulgee, 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, 10.7 hours before the alert went out and 138 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
- 828 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 949 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 152242 SVRTUL OKC111-152345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 543 PM CDT FRI MAY 15 1992 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES ... IN NORTHEAST OKLAHOMA ...OKMULGEE COUNTY AT 540 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES EAST OF HENRIETAA MOVING NORTHWEST AROUND 10 MILES AN HOUR. THE COMMUNITY OF SCHULTER IS IN THE PATH OF THIS STORM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EVMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
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, May 15, 1:32 PM CDT, 4 hours 11 minutes before
OKZ026>034-040-161200- EASTERN OKLAHOMA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 130 PM CDT FRI MAY 15 1992 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS ALL OF EASTERN OKLAHOMA THIS AFTERNOON THROUGH THIS EVENING. VERY MOIST AND UNSTABLE AIR REMAINS IN PLACE ACROSS EASTERN OKLAHOMA THIS AFTERNOON. WITH MOSTLY SUNNY SKIES ACROSS THE AREA...AFTERNOON HEATING WILL LIKELY BE SUFFICIENT TO PRODUCE A FEW THUNDERSTORMS BY LATE THIS AFTERNOON. WITH NO WELL DEFINED BOUNDRY TO FOCUS ON... THUNDERSTORM DEVELOPMENT COULD OCCUR ANYWHERE ACROSS THE AREA. HOWEVER THE GREATEST INSTABILITY AND BEST MOISTURE WERE ONCE AGAIN PRESENT ACROSS THE SOUTHEAST...WHICH WILL LIKELY FAVOR THAT AREA FOR DEVELOPMENT. ALTHOUGH ONLY ISOLATED THUNDERSTORMS ARE EXPECTED...THOSE THAT DEVELOP WILL HAVE THE POTENTIAL TO QUICKLY BECOME SEVERE WITH LARGE HAIL AND STRONG WINDS THE MAIN THREAT. UPPER WIND FIELDS ALSO INDICATE THAT ANY STORMS WILL BE SLOW MOVING WITH HEAVY RAINS RESULTING IN POSSIBLE LOCALIZED FLOODING NEAR THE STORMS. WITH THE LOSS OF DAYTIME HEATING ANY THUNDERSTORMS THAT DEVELOP ARE THEN EXPECTED TO DIMINISH LATER THIS EVENING. CIVIL DEFENSE AND SPOTTER GROUPS OVER THE AREA SHOULD REMAIN ALERT AND BE READY FOR ACTIVATION IF NECESSARY THIS AFTERNOON AND THIS TONIGHT.
Special weather statement, May 15, 1:40 PM CDT, 4 hours 3 minutes before
OKZ026>034-040-161200- EASTERN OKLAHOMA THUNDERSTORM OUTLOOK...CORRECTION NATIONAL WEATHER SERVICE TULSA OK 130 PM CDT FRI MAY 15 1992 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS ALL OF EASTERN OKLAHOMA THIS AFTERNOON THROUGH THIS EVENING. VERY MOIST AND UNSTABLE AIR REMAINS IN PLACE ACROSS EASTERN OKLAHOMA THIS AFTERNOON. WITH MOSTLY SUNNY SKIES ACROSS THE AREA...AFTERNOON HEATING WILL LIKELY BE SUFFICIENT TO PRODUCE A FEW THUNDERSTORMS BY LATE THIS AFTERNOON. WITH NO WELL DEFINED BOUNDRY TO FOCUS ON... THUNDERSTORM DEVELOPMENT COULD OCCUR ANYWHERE ACROSS THE AREA. HOWEVER THE GREATEST INSTABILITY AND BEST MOISTURE WERE ONCE AGAIN PRESENT ACROSS THE SOUTHEAST...WHICH WILL LIKELY FAVOR THAT AREA FOR DEVELOPMENT. ALTHOUGH ONLY ISOLATED THUNDERSTORMS ARE EXPECTED...THOSE THAT DEVELOP WILL HAVE THE POTENTIAL TO QUICKLY BECOME SEVERE WITH LARGE HAIL AND STRONG WINDS THE MAIN THREAT. UPPER WIND FIELDS ALSO INDICATE THAT ANY STORMS WILL BE SLOW MOVING WITH HEAVY RAINS RESULTING IN POSSIBLE LOCALIZED FLOODING NEAR THE STORMS. WITH THE LOSS OF DAYTIME HEATING ANY THUNDERSTORMS THAT DEVELOP ARE THEN EXPECTED TO DIMINISH LATER THIS EVENING. CIVIL DEFENSE AND SPOTdTER GROUPS OVER THE AREA SHOULD REMAIN ALERT AND BE READY FOR ACTIVATION IF NECESSARY THIS AFTERNOON AND THIS EVENING.
Local storm report, May 15, 4:04 PM CDT, 1 hour 39 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
405 PM CDT FRI MAY 15 1992
TIME(CDT) COUNTY REPORT
355 PM PITTSBURG NICKLE SIZE HAIL ON THE EAST SIDE OF
MCALESTER. REPORTED BY EOC.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 4:13 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 62 min |
| May 15, 4:31 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 59 min |
| May 15, 4:40 PM CDT | Severe Thunderstorm Warning | TSA | Haskell | 65 min |
| May 15, 5:06 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 69 min |
| May 15, 5:26 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 64 min |
| May 15, 6:52 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 53 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.