An intense mesoscale convective system (MCS), later classified as a derecho, swept across much of Oklahoma and portions of western-north Texas during the late evening of the 21st and predawn hours of the 22nd. Widespread reports of thunderstorm wind damage were received, especially from northwestern into central Oklahoma, including several observations of 80-100 mph gusts.
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 OUN wrote it up.
An intense mesoscale convective system (MCS), later classified as a derecho, swept across much of Oklahoma and portions of western-north Texas during the late evening of the 21st and predawn hours of the 22nd. Widespread reports of thunderstorm wind damage were received, especially from northwestern into central Oklahoma, including several observations of 80-100 mph gusts. This system also produced several tornadoes in central Oklahoma, including an EF-2 tornado near El Reno, OK. A slow-moving supercell preceded the convective line during the mid-evening of the 21st, producing reports of large hail west of Woodward, OK before dissipating.
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 Norman, OK wrote its last area forecast discussion before the first event at Jun 21, 5:20 PM CST, 1 hour 14 minutes earlier. Its key messages:
Area Forecast Discussion
National Weather Service Norman OK
620 PM CDT Sun Jun 21 2026
...New AVIATION...
.KEY MESSAGES...
Updated at 538 PM CDT Sun Jun 21 2026
- An unsettled pattern with multiple rounds of rain/storms are
expected over the next several days; severe storms and heavy
rainfall are possible on tonight and Monday nights.
- Below normal temperatures are forecast this week and heat up next
weekend.
&&
.NEAR TERM...
(Rest of today and tonight)
Issued at 204 PM CDT Sun Jun 21 2026
Hot and humid conditions continue this afternoon with breezy SSE
winds. Latest surface observations show a surface low centered over
the Oklahoma panhandle and the remnant outflow boundary from this
morning's storm complex has largely mixed out and has shifted across
northern Oklahoma as indicated by the return to SSE winds and
rebounding dewpoint temperatures. The synoptic stationary front
remains in Kansas and is rather diffuse, and may not push into
Oklahoma until late tonight or early Monday morning with the
momentum of the high plains convection. Until then, low-level
frontogenesis ongoing over portions of northwest and northern
Oklahoma appear to be the focal zone for initially discrete
supercell thunderstorm development later this afternoon and into
this evening as dynamic ascent increases ahead of a subtle mid-level
shortwave.
A highly unstable airmass near the boundary (3500-4500 J/kg of
MUCAPE), mid-level lapse rates increasing to near 8C/km, and
decreasing CIN, along with high DCAPE will lead to large to very
large hail potential initially with the discrete storms that develop
over NW/N Oklahoma as early as late afternoon (up to the size of
tennis balls). Evolution of storms tonight is somewhat uncertain
given the variance among model outputs. However, storms are expected
to form a complex by late evening and overnight with damaging wind
gusts probable with these storms with isolated gusts of 75+mph
possible. There is also a very low risk of tornadoes, primarily over
north-central Oklahoma late afternoon and evening in proximity to
the boundary. However, we cannot rule out a tornado overnight as
the complex drops southward. The complex of storms is anticipated
to move through central Oklahoma sometime between the pre-dawn
hours and rush hour on Monday (though timing is also uncertain).
In addition to the severe hazards, flash flooding could be an issue
as well with rainfall rates of 1 to 3 inches per hour possible.
Thompson
&&
.SHORT TERM...
(Monday through Tuesday night)
Issued at 204 PM CDT Sun Jun 21 2026
As mentioned above, the risk of severe thunderstorms (all hazards
possible) continues on Sunday night into Monday morning and storm
redevelopment late Monday will depend on how tonight's event
unfolds. Given the anticipated potency of tonight's storms, we
suspect severe risk will be low on Monday afternoon for much of
the area, with the exception of southwest Oklahoma into western
north Texas. Instability increases across the area on Monday night
and another round of thunderstorms with heavy rainfall is
expected on Monday night into Tuesday morning. Storm chances
continue, to a lesser extent, during the day on Tuesday. High
temperatures will range from the low-80's (northern OK) to 90's
(southern OK and north TX) on Monday and Tuesday.
Thompson
&&
.LONG TERM...
(Wednesday through Saturday)
Issued at 240 AM CDT Sun Jun 21 2026
Northwest to west-northwest flow will continue to persist across
the Southern Plains through at least Friday with a mid-level ridge
remaining quasi-stationary across the southwest U.S into northern
Mexico.
With northwest flow aloft, an active weather pattern will
continue as embedded shortwaves within the flow move across the
Plains. As these waves pass by, there will be ongoing chances for
showers and thunderstorms as MCSs and/or effective cold fronts
advance southward. The highest chance for showers and
thunderstorms will generally be in the overnight/early morning
hours. With respect to location, the highest chances will be
across northern Oklahoma with decreasing chances with southward
extent. These complexes of thunderstorms and their effective,
convectively-reinforced cold fronts should result in seasonable to
slightly below normal temperatures.
By the late into the upcoming weekend into next week,
deterministic and ensemble data indicate a mid-level ridge may
strengthen to our east. This would result in hotter and drier
weather across the Southern Plains.
Mahale
&&
.AVIATION...
(00Z TAFS)
Issued at 538 PM CDT Sun Jun 21 2026
Two rounds of storms may impact our terminals through the forecast
period degrading our terminals for periods to an MVFR to IFR
category with lowering CB ceilings and reduced visibilities in
heavy rain at times. The first round of strong to severe convection
will be along a cold front & mid-level shortwave coming down the
Central Plains expected to start pushing into northern Oklahoma
around 03Z and reaching terminals near the I-40 corridor around
07Z and eventually crossing the Red River into terminal KSPS by
09Z. A second round of storms will be in association with a
second mid-level shortwave coming off the Southern High Plains
which may impact our terminals again from 12-18Z. Due to some
uncertainties with timing did extend lower probabilities of 30%
for storms beyond 18Z. Surface winds will shift northeast behind
the cold front but in actuality expecting surface winds to be
gusty and variable in direction due to the convection and outflow
from the storm activity.
&&
.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK 72 85 68 86 / 70 60 70 50
Hobart OK 72 90 68 92 / 40 40 70 10
Wichita Falls TX 76 95 72 95 / 20 30 60 10
Gage OK 67 84 64 89 / 60 40 40 20
Ponca City OK 68 81 65 83 / 70 20 50 30
Durant OK 78 92 75 91 / 50 50 60 40
&&
.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Heat Advisory until 8 PM CDT this evening for OKZ005>008-011>013-
015>027-033>039-044-045.
TX...Heat Advisory until 8 PM CDT this evening for TXZ083>090.
&&
NEAR TERM...01
SHORT TERM...01
LONG TERM....10
AVIATION...68Special Weather Statement National Weather Service Norman OK 638 PM CDT Sun Jun 21 2026 OKZ004-009-010-220015- Woodward OK-Harper OK-Ellis OK- 638 PM CDT Sun Jun 21 2026 ...A strong thunderstorm will impact portions of north central Ellis, south central Harper and west central Woodward Counties through 715 PM CDT... At 638 PM CDT, Doppler radar was tracking a strong thunderstorm 4 miles southwest of Fort Supply, moving east at 10 mph. HAZARD...Penny size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Fort Supply. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. This storm may intensify, so be certain to monitor NOAA Weather Radio, local radio stations or available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3646 9967 3657 9975 3666 9950 3645 9942 TIME...MOT...LOC 2338Z 260DEG 9KT 3652 9963 MAX HAIL SIZE...0.75 IN MAX WIND GUST...<30 MPH Mahale
Special Weather Statement National Weather Service Norman OK 645 PM CDT Sun Jun 21 2026 OKZ005-010-011-220015- Major OK-Woodward OK-Woods OK- 645 PM CDT Sun Jun 21 2026 ...A strong thunderstorm will impact portions of southern Woods, northwestern Major and east central Woodward Counties through 715 PM CDT... At 644 PM CDT, Doppler radar was tracking a strong thunderstorm 5 miles northeast of Quinlan, moving east at 10 mph. HAZARD...Nickel size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Waynoka. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. This storm may intensify, so be certain to monitor NOAA Weather Radio, local radio stations or available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3646 9903 3654 9905 3661 9882 3646 9877 TIME...MOT...LOC 2344Z 260DEG 9KT 3651 9898 MAX HAIL SIZE...0.88 IN MAX WIND GUST...<30 MPH Mahale
The Vance AFB radar (KVNX), 129 km away, was scanning. The volume nearest the first event began at 00:36 UTC.
88 thunderstorm wind, 9 hail, 5 high wind, 5 tornado, 2 flash flood. Local standard time, as filed.
Maximum hail size increased from dime to half dollar during the event time. The report was relayed by a broadcast media storm chaser. The location is approximate.
The report was relayed through mPING.
Buffalo (BUFF) Mesonet observation.
Buffalo (BUFF) Mesonet observation.
Buffalo (BUFF) Mesonet observation.
Buffalo (BUFF) Mesonet observation.
Buffalo (BUFF) Mesonet observation.
Measured by a broadcast media storm chaser on Oklahoma Highway 34. The location is approximate.
Buffalo (BUFF) Mesonet observation.
Gage Airport (KGAG) observation.
Freedom (FREE) Mesonet observation.
Freedom (FREE) Mesonet observation.
May Ranch (MAYR) Mesonet observation.
Woodward (WOOD) Mesonet observation.
Freedom (FREE) Mesonet observation.
May Ranch (MAYR) Mesonet observation.
Woodward (WOOD) Mesonet observation.
Several railroad cars were blown off the tracks near the crossing at County Road 207, just north of U.S. Highway 412. The event time is estimated based on radar observations.
An image showing a large tree blown down was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
Freedom (FREE) Mesonet observation.
Woodward (WOOD) Mesonet observation.
Observation from a broadcast media storm chaser's handheld anemometer. Local emergency management reported a 56-knot wind gust from a personal weather station around the same time. The location is approximate.
Freedom (FREE) Mesonet observation.
Freedom (FREE) Mesonet observation.
Camargo (CAMA) Mesonet observation.
An image showing a travel trailer blown onto its side was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
Seiling (SEIL) Mesonet observation.
Seiling (SEIL) Mesonet observation.
Camargo (CAMA) Mesonet observation.
Putnam (PUTN) Mesonet observation.
Fairview (FAI2) Mesonet observation.
Camargo (CAMA) Mesonet observation.
Putnam (PUTN) Mesonet observation.
The roof of a building was blown off and landed on the lot of an adjacent car dealership, damaging several cars. Additional roof, tree and power line damage occurred throughout Fairview. The event time is estimated based on radar observations.
Seiling (SEIL) Mesonet observation.
Putnam (PUTN) Mesonet observation.
A large metal lean-too pole barn was destroyed. The event time is estimated based on radar observations.
Putnam (PUTN) Mesonet observation.
Putnam (PUTN) Mesonet observation.
Putnam (PUTN) Mesonet observation.
The location is approximate.
Significant tree damage occurred in/around Okeene. A power line was also blown down onto Oklahoma Highway 51 in town. The location is approximate, and the event time is estimated based on radar observations.
Watonga (WATO) Mesonet observation.
Weatherford (WEAT) Mesonet observation.
Woodward (WOOD) Mesonet observation. Wind gust associated with a probable wake low event.
Watonga (WATO) Mesonet observation.
Woodward (WOOD) Mesonet observation. Wind gust associated with a probable wake low event.
The report was relayed through mPING.
A report of barn damage and widespread broken or uprooted trees was relayed through social media. The event time is estimated based on observed wind gusts from the adjacent Hinton (HINT) Mesonet.
Hinton (HINT) Mesonet observation.
Watonga Regional Airport (KJWG) observation.
Hinton (HINT) Mesonet observation.
Woodward (WOOD) Mesonet observation. Wind gust associated with a probable wake low event.
Hinton (HINT) Mesonet observation.
Hinton (HINT) Mesonet observation.
Several areas of significant roadway flooding occurred along Oklahoma Highway 11 between U.S. Highway 77 and Blackwell. The event time is approximate.
An image showing extensive roadway flooding, with water entering the garage of at least one home, was shared on social media. The event time is approximate.
This QLCS tornado likely initially developed just south of the North Canadian River to the northwest of El Reno. The tornado moved southeast breaking a utility pole on Jones Road just west of Reformatory Road. Continuing southeast, the tornado moved through a neighborhood east of Reformatory Road. At least two homes had most of the roof removed with a partial collapse of the garage. A number of other homes had varying degrees of roof damage. Trees and fences were also damaged through this neighborhood. The tornado dissipated south of this neighborhood before reaching Business Highway 40.
Hobart Regional Airport (KHBR) observation.
El Reno (ELRE) Mesonet observation.
Hobart (HOBA) Mesonet observation.
El Reno (ELRE) Mesonet observation.
The roof of the Union City Post Office sustained significant damage, with a large portion of the wood decking blown off. The event time is estimated based on radar observations.
Fort Cobb (FTCB) Mesonet observation.
Images showing large tree branches blown down were shared on social media. The event time is estimated based on radar observations.
Minco (MINC) Mesonet observation.
A tree was blown down onto the roadway near the intersection of Iowa Street and Washington Street. The event time is estimated based on radar observations.
The roof of an apartment building was significantly damaged by thunderstorm winds. The event time is estimated based on radar observations.
Multiple images showing thunderstorm wind damage in/around Tuttle were shared on social media. Damage included: A large horse trailer blown onto its side, A garage door blown inward, trees snapped, large tree branches and limbs blown down and various damages to outbuildings. The location is approximate, and the event time is estimated based on radar observations.
The roof of a large multipurpose building on the Oklahoma Christian Academy campus was heavily damaged and partially collapsed. The event time is estimated based on radar observations.
Minco (MINC) Mesonet observation.
An image showing a tree uprooted was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
This QLCS tornado touched down just east of Oliver Park near SE 31st Street and Santa Fe Avenue, and moved southeast across southeast Oklahoma City and Valley Brook before dissipating southeast of Interstate 240 and Bryant Avenue. Damage was most concentrated near SE 31st Street and Santa Fe, near SE 45th Street and High Avenue, and along Bryant Avenue just south of Interstate 240. A number of homes and businesses suffered some roof damage along the tornado path.
Minco (MINC) Mesonet observation.
Oklahoma City Will Rogers International Airport (KOKC) observation.
Minco (MINC) Mesonet observation.
Tinker Air Force Base (KTIK) observation.
Numerous images showing broken, snapped or uprooted trees in/around Blanchard were shared on social media. The location is approximate, and the event time is estimated based on radar observations.
Several images showing trees snapped and large tree branches blown down in/around Jones were shared on social media. The location is approximate, and the event time is estimated based on radar observations.
Apache (APAC) Mesonet observation.
The report was relayed through mPING.
A QLCS tornado likely developed near of just north of the North Canadian River and just west of the Kickapoo Turnpike. The tornado moves southeast through Harrah producing tree, power line and power pole damage. In Harrah, the tornado turned east and then east-northeast out of town before crossing into Lincoln County just north of US-62.
The report was relayed through mPING.
Apache (APAC) Mesonet observation.
The report was relayed through mPING.
Minor damage to an outbuilding and at least one tree snapped. The report was relayed through mPING. The event time is estimated based on radar observations.
An image showing the large metal awning of a church blown down was shared on social media. The event time is estimated based on radar observations.
The Harrah tornado moved into Lincoln County just north of US-62 before quickly dissipating.
The report was relayed through mPING.
A power pole was blown down at the Kickapoo Tribe Secondary Administration Complex. The event time is estimated based on radar observations.
An image showing large tree limbs blown down was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
The report was relayed through mPING.
An image showing the trunk of a large tree snapped was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
Washington (WASH) Mesonet observation.
Washington (WASH) Mesonet observation.
An image showing a tree split in half was shared on social media. The event time is estimated based on radar observations.
Wiley Post Airport (KPWA) observation. Wind gust associated with a probable wake low event.
Chandler (CHAN) Mesonet observation.
An image showing a large tree split in half was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
An image showing a large tree limb that had snapped in half and landed on a nearby boat was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
An estimated wind gust on the Oklahoma Baptist University campus.
An image showing a large tree limb blown down was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
Grandfield (GRA2) Mesonet observation.
An estimated wind gust in Cromwell. The location is approximate.
The Wetumka tornado began at 310 AM CDT just south of SH 9 to the west of Wetumka. The tornado then produced damage to trees and power lines near the intersection of SH 9 and SH 27, before moving eastward. The most intense damage was consistent with EF1 damage, with trees and power pole damage just southeast of the Wetumka city limits. South of SH 9 and along N 381 Road, there were a few trees uprooted as well.
An image showing the trunk of a large tree snapped was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
An image showing a large tree split in half was shared on social media. The location is approximate, and the event time is estimated based on radar observations.
Durant (DURA) Mesonet observation. Wind gust associated with a probable wake low event.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2026Every state in 2026This day in weather historyThe tornado archive for Oklahoma, 2026Warnings in Oklahoma, June 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: 1345210, 1345212, 1345213, 1345215, 1345216, 1345217, 1345218, 1345219, 1345214, 1345222, 1345230, 1345232, 1345233, 1345239, 1345250, 1345235, 1345240, 1345245, 1346303, 1346799, 1345236, 1345253, 1345280, 1345237, 1345238, 1345262, 1346798, 1345267, 1345268, 1345264, 1345270, 1345276, 1345265, 1345271, 1346789, 1345269, 1345272, 1346787, 1345273, 1345274, and more.