An area of showers and thunderstorms developed over portions of northeastern Oklahoma during the early morning hours of the 22nd. This activity produced moderate to heavy rainfall that was persistent across the same area for several hours, resulting in rainfall amounts of three to seven inches.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS TSA wrote it up.
An area of showers and thunderstorms developed over portions of northeastern Oklahoma during the early morning hours of the 22nd. This activity produced moderate to heavy rainfall that was persistent across the same area for several hours, resulting in rainfall amounts of three to seven inches. Flash flooding occurred in Tulsa and Rogers Counties from this heavy rainfall.
The local office's own words before the first event, 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 the first event at May 21, 11:25 PM CST, 4 hours 50 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Tulsa OK 1225 AM CDT Fri May 22 2026 ...New AVIATION... .KEY MESSAGES... Updated at 1222 AM CDT Fri May 22 2026 - Showers and isolated thunderstorms continue into Friday. Near daily rain chances will continue through next week with periods of heavy rain possible. - Temperatures warm back to near normal for much of the next week. && .SHORT TERM... (Through Friday) Issued at 1133 PM CDT Thu May 21 2026 An increase in shower and isolated thunderstorm coverage is expected overnight into Friday morning as an upper level disturbance moves across the area. Locally heavy rainfall will be possible with this activity. Precipitation coverage will decrease from west to east during the day Friday, with some sunshine returning and allowing afternoon temperatures to warm into the 70s to lower 80s. && .LONG TERM... (Friday Night through Thursday) Issued at 1133 PM CDT Thu May 21 2026 Shower and isolated thunderstorm coverage will increase again late Friday night and Saturday as another upper level disturbance moves across the area, with locally heavy rainfall again possible. Somewhat drier air will move into at least northeast Oklahoma Sunday and Monday, with mainly dry weather expected in that area those two days. Upper troughing will remain over the area through the next week, resulting in daily shower and thunderstorm chances Tuesday through the end of the week. Temperatures next week look to remain near the seasonal averages for late May. && .AVIATION... (06Z TAFS) Issued at 1222 AM CDT Fri May 22 2026 Ongoing VFR conditions at most locations will transition back to a mix of MVFR and IFR as showers and a few thunderstorms expand back across the local area over the next few hours. Occasional showers will persist through Friday morning, with gradual improvement in flight conditions by later Friday afternoon. && .PRELIMINARY POINT TEMPS/POPS... TUL 79 62 78 62 / 60 30 50 40 FSM 80 63 83 64 / 70 10 60 50 MLC 81 63 81 64 / 40 50 60 40 BVO 78 58 78 58 / 50 30 50 40 FYV 77 58 81 59 / 70 10 60 60 BYV 73 59 80 61 / 70 10 60 60 MKO 79 61 80 62 / 60 30 60 40 MIO 76 59 78 60 / 80 10 60 50 F10 80 61 80 62 / 30 40 50 40 HHW 80 63 80 64 / 40 40 70 50 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. && SHORT TERM...05 LONG TERM....05 AVIATION...14
Hazardous Weather Outlook National Weather Service Tulsa OK 505 AM CDT Fri May 22 2026 ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071- 073>075-154-172-176-254-272-276-354-376-231015- Benton-Carroll-Washington AR-Madison-Northern Crawford- Northern Franklin-North and Central Sebastian-Southern Crawford- Central and Southern Franklin-Southern Sebastian-Pushmataha- Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers- Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair- Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage- Northern Sequoyah-Northern Le Flore-Northeast Osage- Central and Southern Sequoyah-Central Le Flore-Southeast Osage- Southern Le Flore- 505 AM CDT Fri May 22 2026 This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Today and Tonight. HEAVY RAIN. RISK...Limited. AREA...Eastern Oklahoma. ONSET...Ongoing. THUNDERSTORMS WITH DANGEROUS LIGHTNING. RISK...Elevated. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. DISCUSSION... Widespread showers and scattered thunderstorms will continue this morning with a gradual decrease in coverage through the afternoon. Additional showers and scattered storms are likely to move into the region late tonight and continue into the day Saturday. Areas of heavy rainfall have been observed overnight resulting in localize flooding. This potential for localized flooding will remain through tonight and into the day Saturday. Avoid any flooded roadways. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Spotter Activation Not Expected. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. SATURDAY through THURSDAY...Thunderstorm Potential. EXTENDED DISCUSSION... A wet weather pattern is forecast to continue through the weekend and much of next week. Daily shower and thunderstorm chances are forecast with periods of widespread coverage likely. Any severe weather threat will remain isolated with the focus being on heavy rainfall potential and resultant flooding concerns. weather.gov/tulsa contains additional information.
The Tulsa radar (KINX), 32 km away, was scanning. The volume nearest the first event began at 10:13 UTC.
4 flash flood. Local standard time, as filed.
N Mingo Road was closed from E 110th Street N to E 116th Street N due to flooding.
E 106th Street N was closed from N 145th E Avenue to N 149th E Avenue due to flooding.
Portions of E 106th Street N and N 193rd E Avenue were flooded and closed.
Portions of several roads were flooded and closed in and just west of Oologah.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2026Every state in 2026This day in weather historyWarnings in Oklahoma, May 2026
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1340199, 1340204, 1340211, 1340205.