Hail, Sebastian
- When
- May 8, 8:05 PM CST
- Where
- Sebastian County, 0.55 mi SSE of Oak Park
- Measured
- 1 in hail
- Reported by
- Trained Spotter
- Coordinates
- 35.423, -94.376
Strong to severe thunderstorms developed across northeastern Oklahoma during the afternoon of the 8th, along a cold front approaching the region from the northwest. The thunderstorms spread into northwestern Arkansas during the evening.
Every event with a place to put it. Tap one for its entry below.
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.
Strong to severe thunderstorms developed across northeastern Oklahoma during the afternoon of the 8th, along a cold front approaching the region from the northwest. The thunderstorms spread into northwestern Arkansas during the evening. The atmosphere became moderately unstable during the afternoon ahead of the cold front in eastern Oklahoma and northwestern Arkansas, and deep-layer wind shear increased across the region with the approach of an upper level disturbance. The combination of moderately strong instability and strong deep-layer wind shear resulted in some thunderstorms evolving into supercell thunderstorms, the strongest of which produced large hail up to golf ball size.
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 8, 5:38 PM CST, 2 hours 27 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Tulsa OK 638 PM CDT Fri May 8 2026 ...New AVIATION... .KEY MESSAGES... Updated at 630 PM CDT Fri May 8 2026 - Scattered strong to severe storms from mid afternoon through evening. - Thunderstorm chances continue Saturday night into Sunday. - Temps near mid May normals forecast next week w/ low rain chances. && .SHORT TERM... (Through tonight ) Issued at 1245 PM CDT Fri May 8 2026 Cold front currently passing far NW OK and will continue eastward becoming a focus for thunderstorm development by mid afternoon. Guidance is in good agreement on increasing storm coverage through early evening as storms spread east and southeastward across the region. Forecast profiles maintain a drier subcloud layer as low level moisture return is meager with strong deep layer shear that remains near unidirectional through the evening. This will favor supercells with any sustained updrafts with efficient storm splits likely leading to multiple cell interactions with time. The initial storms will be capable of large hail and damaging winds with a transition to broken line segments and damaging winds becoming the primary hazard. The eastward extent of the instability axis will be confined within the forecast area with the high value corridor more favored across E OK and points south and westward. This should result in a lesser severe risk with eastward extent while also allowing a quick stabilization trend after sunset which keeps the severe weather confined to the evening hours. The composite cold front and outflow boundary will likely push through far SE OK by sunrise Saturday. && .LONG TERM... (Saturday through Friday) Issued at 1245 PM CDT Fri May 8 2026 The aforementioned boundary will be a focus for storm development and expansion late Saturday through Saturday night. Initial storms are likely to develop well west of the region Saturday afternoon and spread eastward into the forecast area Saturday night. Severe weather potential will be lower with this eastward progression with a limited risk hail risk Saturday night. A stronger wave approaches and passes through the region Sunday through Sunday night driving a cold front south of the area by Monday. Increased forcing in advance of the wave and along the advancing front is likely to sustain the early day convection with the storms spreading southward through Sunday. Dry and mild day Monday as sfc high pressure settles over the region. Northwesterly flow aloft continues through early next week with the next cold front passing Tuesday or Tuesday night with a chance of shower and storms. The remainder of the work week is forecast to maintain temperatures near seasonal normals and mostly dry conditions. The pattern aloft may trend toward a more unsettled state by next weekend into next week and more typical of mid May. && .AVIATION... (00Z TAFS) Issued at 638 PM CDT Fri May 8 2026 Potential for thunderstorm impacts during the first 3 to 6 hours of the valid TAF period exist for all terminals except BVO. Highest potential is TUL/RVS, where TEMPOs will continue. PROB30s included at MLC and the W AR sites, where impacts are less certain given the expectation of a decline in the coverage and intensity with time. A brief period of fog development with visibilities locally to a mile, low chance of less than that, expected, especially north of I-40. Light winds and generally clear skies should occur for much of the daylight hours tomorrow. && .PRELIMINARY POINT TEMPS/POPS... TUL 55 84 62 71 / 40 0 80 60 FSM 58 86 61 77 / 40 0 50 80 MLC 58 86 64 75 / 60 0 70 90 BVO 49 84 57 70 / 20 0 70 50 FYV 53 84 59 73 / 60 0 50 70 BYV 54 82 58 70 / 60 0 40 70 MKO 55 83 61 72 / 70 0 70 80 MIO 52 81 58 68 / 50 0 50 50 F10 55 83 61 72 / 70 0 80 90 HHW 59 83 64 79 / 30 0 30 90 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. && SHORT TERM...07 LONG TERM....07 AVIATION...22
Hazardous Weather Outlook National Weather Service Tulsa OK 456 PM CDT Fri May 8 2026 ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071- 073>075-154-172-176-254-272-276-354-376-092200- 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- 456 PM CDT Fri May 8 2026 This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Rest of This Afternoon and Tonight. TORNADO. RISK...Limited. AREA...Northeast Oklahoma. ONSET...Ongoing Through Early Evening. SEVERE THUNDERSTORM. RISK...Elevated. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing Through Late Evening. DISCUSSION... Thunderstorms have developed across northeast Oklahoma this afternoon and will continue to spread east and southward through the evening. Initial storms will be capable of very large hail and locally damaging winds. A very low but nonzero potential for a tornado or two will also exist in parts of northeast Oklahoma through early evening. As storms become more numerous by early evening, the primary hazard will gradually transition to mainly damaging winds. The severe weather threat will begin to diminish by mid evening with storms likely dissipating around midnight. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Activation of the Regional Spotter Network Likely. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. SATURDAY AND SUNDAY...Thunderstorm Potential. MONDAY...No Hazards. TUESDAY AND WEDNESDAY...Thunderstorm Potential. THURSDAY...High Wind Potential. EXTENDED DISCUSSION... Showers and thunderstorms are expected to spread into eastern Oklahoma Saturday night and continue into the day Sunday. These storms will have a limited severe weather threat and potential for locally heavy rainfall. A weak frontal boundary may bring a few showers and thunderstorms to parts of eastern Oklahoma and northwest Arkansas Tuesday night into Wednesday. weather.gov/tulsa contains additional information.
Preliminary Local Storm Report
National Weather Service Tulsa OK
828 PM CDT Fri May 8 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0810 PM Hail 6 WNW Box 35.63N 95.07W
05/08/2026 E0.88 Inch Sequoyah OK Public
time estimated from radar.
&&Preliminary Local Storm Report
National Weather Service Tulsa OK
831 PM CDT Fri May 8 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0805 PM Tstm Wnd Dmg 6 NNW Cookson 35.79N 94.96W
05/08/2026 Cherokee OK Amateur Radio
Estimated 60 mph winds. Power out. Tree
debris of unknown size throughout the area.
Time estimated from radar.
&&
KAHSpecial Weather Statement
National Weather Service Tulsa OK
835 PM CDT Fri May 8 2026
OKZ070-071-074-272-090230-
Haskell OK-Central and Southern Sequoyah OK-Muskogee OK-McIntosh OK-
835 PM CDT Fri May 8 2026
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL HASKELL...NORTHEASTERN
MCINTOSH...SOUTHWESTERN SEQUOYAH AND SOUTHEASTERN MUSKOGEE COUNTIES
THROUGH 930 PM CDT...
At 834 PM CDT, Doppler radar indicated a strong thunderstorm over
Rentiesville, moving southeast at 40 mph.
HAZARD...Wind gusts up to 50 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down small tree limbs and blow
around unsecured objects. Minor hail damage to vegetation
is possible.
Locations in or near the path include...
Stigler... Checotah...
Warner... Gore...
Porum... Webbers Falls...
Keota... Whitefield...
Oktaha... Tamaha...
Rentiesville... Briartown...
Keefeton... Summit...
Kanima...
This includes Interstate 40 in Oklahoma between mile markers 259 and
291.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
southeastern and east central Oklahoma.
&&
LAT...LON 3546 9562 3572 9543 3535 9480 3511 9503
TIME...MOT...LOC 0134Z 295DEG 36KT 3552 9547
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH
69Preliminary Local Storm Report
National Weather Service Tulsa OK
840 PM CDT Fri May 8 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 PM Hail 5 N Eram 35.68N 95.77W
05/08/2026 M1.25 Inch Okmulgee OK Emergency Mngr
On 340 Road just south of Liberty Road.
Stripped trees in the area. Time estimated
from radar.
&&
KAHPreliminary Local Storm Report
National Weather Service Tulsa OK
854 PM CDT Fri May 8 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0842 PM Hail 4 E Checotah 35.46N 95.45W
05/08/2026 E1.75 Inch McIntosh OK Broadcast Media
Up to golf ball sized.
&&
KAHPreliminary Local Storm Report
National Weather Service Tulsa OK
901 PM CDT Fri May 8 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0858 PM Hail Roland 35.42N 94.52W
05/08/2026 E1.00 Inch Sequoyah OK Amateur Radio
&&
KAHThe Western Arkansas radar (KSRX), 15 km away, was scanning. The volume nearest the first event began at 02:04 UTC.
9 hail. Local standard time, as filed.
Hail up to half dollar size damaged homes and vehicles.
Hail up to golf ball size damaged homes, businesses, and vehicles.
Hail up to half dollar size damaged homes and vehicles.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2026Every state in 2026This day in weather historyWarnings in Arkansas, 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: 1325429, 1340089, 1340090, 1340091, 1340143, 1340144, 1340145, 1340146, 1340150.