Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 237, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 30, 1992, 3:32 PM CDT for Okfuskee County, Oklahoma. It was in force for 58 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
- Jul 30, 1992, 3:32 PM CDT (20:32 UTC)
- Expired
- Jul 30, 1992, 4:30 PM CDT
- In force
- 58 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Okfuskee County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 30, 3:45 PM CDT | Hail 1.75 | Okfuskee, 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, 8.5 hours before the alert went out and 101 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
- 1041 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 1334 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 91 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 302033 SVRTUL OKC107-302130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 332 PM CDT THU JUL 30 1992 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS IN EAST CENTRAL OKLAHOMA ...SOUTHERN OKFUSKEE COUNTY AT 330 PM NATIONAL WEATHER SERVICE RADAR IN TULSA INDICATED A SEVERE THUNDERSTORM 2 MILES NORTH OF OKEMAH. MOVEMENT WAS EAST AT 10 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. KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.
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.
NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 30, 10:12 AM CDT, 5 hours 20 minutes earlier.
Area forecast discussion, Jul 30, 10:12 AM CDT, 5 hours 20 minutes before
AREA FORECAST DISCUSSION FOR EASTERN OKLAHOMA NATIONAL WEATHER SERVICE TULSA OK 1011 AM CDT THU JUL 30 1992 THREE FOCI FOR THUNDER TODAY...SHALLOW CDFNT JUST ABT TO ENTR THE NW PART OF THE FA...A TSTM BNDRY FM NR PNC TO TUL TO BTWN FYV AND FSM...AND OLD BNDRY ACRS SE OK. CONVCTN IS RAPDILY INCRSNG IN SE OK AND SHUD INCRS NR THE NRN BNDRIES THIS AFTN. FCST CAPES OF 2000 TO 2700 AND A WBZ NR 11000 FT SHUD SUPPORT ISLD SVR TSTMS. BEST WIND FIELDS WL BE ACRS THE NRN ZONES...WITH THE RGN IN THE RRQ OF A 70KT H3 JET MAX AT 00Z. WL HV LKLY POPS IN ALL ZONES TODAY AND ADJUST TEMPS TO FIT FCST CLDS AND PRECIP. NO CHGS TO OUTPDS ATTM. .OK...NONE.
In the hours before
Special weather statement, Jul 30, 2:24 PM CDT, 1 hour 8 minutes before
OKZ026>034-040-311200- EASTERN OKLAHOMA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 225 PM CDT THU JUL 30 1992 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN OKLAHOMA THROUGH TONIGHT ALONG AND SOUTH OF A LINE FROM MIAMI IN OTTAWA COUNTY TO OILTON IN CREEK COUNTY. A FEW SEVERE THUNDERSTORMS ARE LIKELY TO DEVELOP ALONG A THUNDERSTORM BOUNDARY THAT AT MID AFTERNOON EXTENDED FROM NEAR TULSA TO NEAR STILWELL IN ADAIR COUNTY. ONCE DEVELOPED THESE STORMS SHOULD MOVE EASTWARD AT 15 MPH. WHILE WIND FIELDS ARE RATHER WEAK...ENOUGH INSTABILITY EXISTS FOR A FEW STORMS TO PRODUCE LARGE HAIL AND WIND GUSTS UP TO 60 MPH. A FEW THUNDERSTORMS HAVE CONTINUED TO OCCUR IN SOUTHEAST OKLAHOMA NEAR AN UPPER-LEVEL DISTURBANCE AND IN A POCKET OF VERY MOIST AIR. OTHER THUNDERSTORMS ARE LIKELY TO DEVELOP ALONG A WEAK COLD FRONT THAT IS EXPECTED TO PUSH THROUGH NORTHEAST OKLAHOMA THIS AFTERNOON AND TONIGHT. ISOLATED SEVERE STORMS MAY DEVELOP WITH THE COLD FRONT AND WITH THE UPPER-LEVEL DISTURBANCE. ANY OF THE STORMS IN EASTERN OKLAHOMA WILL PRODUCE HEAVY RAINS. THE CHANCES FOR SEVERE THUNDERSTORMS SHOULD DIMINISH LATE THIS EVENING AS THE AIR MASS STABILIZES WITH SUNSET AND THE MAIN UPPER-LEVEL SUPPORT MOVES EAST OF THE AREA. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTERS IN THE SLIGHT RISK AREA SHOULD BE READY FOR ACTIVATION THIS AFTERNOON AND THIS EVENING.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 2:07 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 53 min |
| Jul 30, 2:51 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 69 min |
| Jul 30, 2:57 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 48 min |
| Jul 30, 3:01 PM CDT | Severe Thunderstorm Warning | TSA | Mayes | 59 min |
| Jul 30, 4:18 PM CDT | Tornado Warning | TSA | Delaware | 27 min |
| Jul 30, 4:27 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 48 min |
| Jul 30, 4:42 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 48 min |
| Jul 30, 5:28 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 47 min |
| Jul 30, 6:34 PM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 28 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.