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Harper County, OK hail & severe wind history

138 storm reports on file for Harper County between 2010-06-13 and 2026-06-26 — 69 hail and 69 severe thunderstorm wind. That averages 8.1 reports a year, and Jun is the busiest month.

Hail reports

4.1 per year

Largest hail

teacup size · 2019-04-17

Strongest gust

96 mph

83 kt · 2023-06-17

Reported damage

$328K

property + crop, as filed

Storm days

distinct days with a report

Busiest year

2025

17 reports

Search every Harper County report

Filter the full record below — pick a year, narrow to a month, or drag the hail-size slider to see only the storms big enough to dent a roof (1" and up is the usual threshold insurers care about).

Event type

Year

Month

Min hail size: any

Search place or date

138 of 138 reports match.

Reports by month for the current filter — the shape of Harper County’s storm season.

Date	Type	Size / gust	Nearest location	Report detail
2026-06-26 23:58	Wind	52 kt 60 mph	1.11 mi W of May	An estimated wind gust from a broadcast media storm chaser.
2026-06-21 21:50	Wind	60 kt 69 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2026-06-21 21:55	Wind	63 kt 72 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2026-06-21 22:00	Wind	51 kt 59 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2026-06-21 22:05	Wind	63 kt 72 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2026-06-21 22:10	Wind	59 kt 68 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2026-06-21 22:15	Wind	54 kt 62 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2026-06-16 17:52	Hail	1.75" golf ball	3.21 mi WNW of Rosston	Reported by a broadcast media storm chaser. The location is approximate.
2026-06-16 18:18	Hail	0.88" nickel	0 mi N of Laverne	The location is approximate.
2026-06-16 18:20	Hail	1.75" golf ball	2 mi W of Laverne	Reported by a broadcast media storm chaser. The location is approximate.
2026-06-16 18:25	Hail	2.75" baseball	3 mi W of Laverne	Reported by a broadcast media storm chaser. The location is approximate.
2026-03-10 15:40	Hail	0.75" penny	6.83 mi ENE of May	The report was relayed through mPING.
2026-03-04 00:01	Hail	1" quarter	.15 mi SE of Buffalo	The report was relayed through mPING.
2025-09-17 17:08	Hail	1.75" golf ball	13.8 mi N of Selman	The Comanche County, Kansas Emergency Management Agency relayed a report of hailfall along the Oklahoma-Kansas border.
2025-09-08 17:05	Hail	2" hen egg	8.06 mi NE of Rosston	The location is approximate, and the event time is estimated from radar observations.
2025-09-08 17:25	Hail	2.5" tennis ball	0 mi N of Rosston	The location is approximate, and the event time is estimated from radar observations.
2025-09-08 18:00	Hail	1.75" golf ball	0 mi N of Laverne	The location is approximate.
2025-08-17 17:55	Wind	70 kt 81 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2025-08-03 19:55	Wind	50 kt 58 mph	1.1 mi NNE of Laverne	A personal weather station observation. The event time is estimated from radar observations.
2025-06-06 23:15	Wind	62 kt 71 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2025-06-06 23:20	Wind	57 kt 66 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2025-05-18 16:26	Hail	0.75" penny	3.89 mi S of Laverne	The report was relayed through mPING.
2025-05-18 16:28	Hail	2" hen egg	0 mi N of Laverne	The event time is estimated from radar observations.
2025-05-18 16:35	Hail	2.75" baseball	0 mi N of Rosston	The report was relayed by emergency management. The event time is estimated from radar observations.
2025-05-18 16:35	Hail	1" quarter	6.22 mi E of Rosston	The report was relayed through mPING.
2025-05-18 16:35	Hail	2.75" baseball	2.39 mi E of Rosston	The report was relayed through mPING. The event time is adjusted based on radar observations.
2025-05-18 16:40	Hail	1.5" ping pong	4.87 mi NNW of Rosston	The report was relayed through mPING.
2025-04-24 16:04	Hail	1.25" half dollar	9.85 mi N of Buffalo	No narrative filed · source: Broadcast Media
2025-04-24 16:10	Hail	1.75" golf ball	9.91 mi N of Buffalo	No narrative filed · source: Broadcast Media
2025-04-24 16:55	Hail	2.25" tennis ball	8.7 mi ENE of Selman	Event time estimated from radar observations.
2024-08-25 16:50	Wind	52 kt 60 mph	6.06 mi S of Laverne	Powerlines blown down along U.S. Highway 270. Time is radar estimated.
2024-08-14 18:20	Wind	51 kt 59 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation. Law enforcement also reported that a tree was blown down on the west side of the community of Buffalo.
2024-07-16 21:55	Wind	53 kt 61 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2024-07-16 22:00	Wind	50 kt 58 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2024-07-16 22:10	Wind	56 kt 64 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2024-06-13 19:35	Wind	51 kt 59 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2023-08-13 19:06	Hail	1" quarter	9.01 mi SSW of Selman	No narrative filed · source: Broadcast Media
2023-08-05 02:15	Wind	69 kt 79 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2023-08-05 02:25	Wind	52 kt 60 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2023-06-17 18:50	Wind	83 kt 96 mph	0 mi N of Laverne	As a tornado was dissipating north of Laverne, damaging winds from this supercell produced widespread roof, tree and power line damage in Laverne. A number of homes and buildings throughout town suffered roof damage, and multiple power poles were downed in Laverne as well as to the east along State Highway 149.
2023-06-17 19:15	Wind	52 kt 60 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2023-06-17 19:20	Wind	58 kt 67 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2023-06-17 19:25	Wind	56 kt 64 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2023-06-17 19:30	Wind	52 kt 60 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2023-06-17 19:35	Wind	52 kt 60 mph	.61 mi W of Buffalo	Buffalo (BUFF) Mesonet observation.
2022-07-06 15:10	Wind	52 kt 60 mph	0 mi N of Rosston	Estimated severe wind gust.
2022-05-14 18:05	Hail	2" hen egg	13.42 mi NNW of Rosston	No narrative filed · source: Public
2022-05-14 18:45	Hail	1.5" ping pong	6.64 mi W of Buffalo	No narrative filed · source: Broadcast Media
2022-05-14 18:49	Hail	2.25" tennis ball	2.77 mi W of Buffalo	No narrative filed · source: Broadcast Media
2022-05-14 18:49	Wind	52 kt 60 mph	3.03 mi SW of Buffalo	Estimated severe wind gust.
2022-05-14 18:52	Hail	2.5" tennis ball	2.77 mi W of Buffalo	No narrative filed · source: Broadcast Media
2022-05-14 19:22	Hail	1" quarter	0 mi N of Buffalo	No narrative filed · source: Emergency Manager
2022-05-14 19:50	Hail	1.25" half dollar	7.99 mi ENE of May	No narrative filed · source: Emergency Manager
2022-05-14 19:51	Hail	1.75" golf ball	7.99 mi ENE of May	No narrative filed · source: Emergency Manager
2022-05-14 20:31	Hail	1" quarter	4.98 mi E of Rosston	No narrative filed · source: Storm Chaser
2022-05-12 20:44	Hail	1" quarter	0 mi N of May	No narrative filed · source: Broadcast Media
2022-05-12 21:24	Hail	1" quarter	9.4 mi SE of Selman	No narrative filed · source: Broadcast Media
2021-10-12 23:05	Wind	52 kt 60 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2021-09-17 18:00	Hail	1" quarter	3.45 mi N of Rosston	No narrative filed · source: Broadcast Media
2021-09-17 18:00	Wind	56 kt 64 mph	3.45 mi N of Rosston	Back window blown out of a vehicle and multiple power lines downed.
2021-09-17 18:00	Wind	75 kt 86 mph	2.76 mi N of Rosston	No narrative filed · source: Broadcast Media
2021-09-17 18:00	Wind	70 kt 81 mph	4.15 mi N of Rosston	Estimated severe wind gust.
2021-09-17 18:40	Wind	63 kt 72 mph	1.49 mi NNE of Laverne	No narrative filed · source: Public
2021-06-25 15:55	Wind	52 kt 60 mph	.89 mi SE of Selman	Five inch diameter tree limb downed.
2020-11-24 15:08	Hail	1" quarter	4.32 mi SW of Buffalo	No narrative filed · source: Emergency Manager
2020-07-11 19:48	Hail	1" quarter	0 mi N of Laverne	No narrative filed · source: Fire Department/Rescue
2020-06-21 19:05	Wind	51 kt 59 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2019-06-01 07:46	Hail	0.75" penny	0 mi N of Laverne	Dispach reported dime size hail. Time is radar estimate.
2019-04-17 16:40	Hail	3" teacup	.55 mi E of Selman	Time is radar estimated.
2018-06-24 22:10	Wind	54 kt 62 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2018-06-24 22:29	Wind	70 kt 81 mph	6.32 mi S of Laverne	Also reported quarter size hail.
2018-06-12 17:44	Hail	1.25" half dollar	11.05 mi N of Buffalo	No narrative filed · source: Public
2018-06-12 18:16	Hail	1" quarter	10.38 mi N of Rosston	No narrative filed · source: Trained Spotter
2018-06-12 18:21	Wind	52 kt 60 mph	6.22 mi N of Rosston	Utility pole was downed on an angle.
2018-06-12 18:26	Wind	52 kt 60 mph	3.63 mi NNW of Rosston	Utility pole was snapped.
2018-06-12 18:34	Hail	1.5" ping pong	2.16 mi NW of Rosston	No narrative filed · source: Trained Spotter
2018-06-12 18:39	Wind	74 kt 85 mph	2.16 mi NW of Rosston	Wind speed estimated with tree debris on road.
2018-05-29 15:05	Hail	1" quarter	11.75 mi N of Buffalo	No narrative filed · source: Storm Chaser
2018-05-29 15:39	Hail	1.25" half dollar	11.11 mi N of Buffalo	No narrative filed · source: Storm Chaser
2018-05-29 15:45	Hail	1.75" golf ball	11.05 mi N of Buffalo	No narrative filed · source: Storm Chaser
2018-05-29 16:10	Hail	1.5" ping pong	10.88 mi NNE of Buffalo	Report via spotter network.
2018-05-29 17:39	Hail	1" quarter	7.74 mi W of Buffalo	No narrative filed · source: Trained Spotter
2018-05-18 18:25	Wind	52 kt 60 mph	.55 mi W of Buffalo	No narrative filed · source: Mesonet
2018-05-18 18:55	Wind	52 kt 60 mph	5.53 mi S of Buffalo	No damage reported.
2017-10-06 20:24	Wind	56 kt 64 mph	0 mi N of Laverne	The wind gust was estimated by an official cooperative observer.
2017-07-03 16:14	Hail	1" quarter	.69 mi N of Selman	No narrative filed · source: Public
2017-05-18 14:43	Hail	1.75" golf ball	10.38 mi SE of Selman	No narrative filed · source: Trained Spotter
2016-09-09 18:00	Wind	56 kt 64 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2016-09-09 18:05	Wind	51 kt 59 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2016-09-09 18:15	Wind	52 kt 60 mph	.69 mi S of Buffalo	Broadcast media via Twitter. Time estimated from tweet time and radar.
2016-07-15 19:00	Wind	56 kt 64 mph	5.91 mi WNW of Laverne	No damage reported.
2016-06-13 03:45	Wind	61 kt 70 mph	0 mi N of Laverne	Eight inch diameter tree limb was snapped by high wind gusts.
2016-05-26 13:25	Hail	1.75" golf ball	4.84 mi N of May	No narrative filed · source: Broadcast Media
2016-05-26 13:25	Hail	1.5" ping pong	6.09 mi E of Laverne	No narrative filed · source: Emergency Manager
2016-05-26 19:06	Wind	56 kt 64 mph	0 mi N of May	Power lines were reported down.
2015-04-18 13:35	Hail	1.5" ping pong	0 mi N of Buffalo	No damage reported.
2015-04-18 13:40	Hail	1" quarter	0 mi N of Buffalo	Relayed to EM by city sheriff's office.
2015-04-12 18:12	Hail	1" quarter	11.5 mi SSE of Selman	No known damage.
2014-06-30 22:20	Wind	61 kt 70 mph	0 mi N of Laverne	Numerous downed trees and minor structural damage to some homes and carports occurred. Time of damage estimated from radar. No damage estimated were available.
2014-06-30 22:45	Wind	56 kt 64 mph	0 mi N of Buffalo	Several trees and power lines blown down. Time estimated from radar.
2014-06-28 06:58	Wind	52 kt 60 mph	11.91 mi SSE of Selman	Estimated 60 mph wind gusts. No damage information was provided.
2014-06-22 20:25	Wind	60 kt 69 mph	0 mi N of Rosston	The Amarillo forecast office relayed a second hand report of 60 to 70 mph wind gusts. No damage information was provided.
2014-06-22 22:05	Wind	53 kt 61 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2014-06-22 22:10	Wind	54 kt 62 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2014-06-06 19:25	Hail	1.75" golf ball	7.83 mi SW of Laverne	No narrative filed · source: Public
2014-05-11 20:20	Hail	1" quarter	1.11 mi E of May	No damage was reported.
2013-08-06 17:55	Hail	1.5" ping pong	8.33 mi SW of Laverne	No narrative filed · source: Public
2013-08-06 18:45	Wind	56 kt 64 mph	11.34 mi NW of Buffalo	The public estimated a gust to 65 mph.
2013-07-23 20:05	Wind	56 kt 64 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2013-06-27 17:25	Wind	56 kt 64 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2013-06-08 17:25	Wind	50 kt 58 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2013-06-03 20:00	Wind	52 kt 60 mph	8.33 mi SW of Laverne	Public estimated a gust to 60 mph.
2013-05-28 16:20	Hail	1" quarter	1.38 mi S of Buffalo	No narrative filed · source: Public
2013-05-28 17:45	Hail	1.75" golf ball	11.34 mi NW of Buffalo	No narrative filed · source: Public
2013-05-07 18:04	Hail	1" quarter	3.91 mi NE of Laverne	No narrative filed · source: Trained Spotter
2012-06-02 22:39	Wind	52 kt 60 mph	0 mi N of Buffalo	At least one power line was blown down.
2012-05-30 20:30	Wind	56 kt 64 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2012-05-30 20:35	Wind	52 kt 60 mph	.89 mi SW of Buffalo	No narrative filed · source: Mesonet
2012-05-30 21:07	Wind	61 kt 70 mph	3.32 mi E of Buffalo	Several power poles blown down. Damages are estimated.
2012-04-29 21:22	Hail	1.25" half dollar	0 mi N of May	No narrative filed · source: Trained Spotter
2012-04-14 13:30	Hail	1" quarter	6 mi S of Laverne	No narrative filed · source: COOP Observer
2012-04-14 14:15	Hail	2.75" baseball	11 mi NNE of Selman	No narrative filed · source: Public
2012-04-14 14:59	Hail	1.75" golf ball	12 mi SSE of Selman	No narrative filed · source: Public
2012-04-14 21:45	Hail	1.75" golf ball	0 mi N of Buffalo	No narrative filed · source: Amateur Radio
2012-04-09 14:37	Hail	0.88" nickel	4 mi NNW of Selman	No narrative filed · source: Trained Spotter
2012-04-09 15:16	Hail	1.75" golf ball	7 mi SE of Selman	No narrative filed · source: Trained Spotter
2012-04-09 15:41	Hail	2.75" baseball	10 mi SE of Selman	No narrative filed · source: Trained Spotter
2011-09-17 15:00	Hail	0.75" penny	8 mi SE of Selman	No narrative filed · source: Public
2011-09-17 15:00	Hail	0.75" penny	7 mi SE of Selman	No narrative filed · source: Public
2011-06-15 22:38	Hail	1.75" golf ball	12 mi S of Buffalo	No narrative filed · source: Emergency Manager
2011-06-08 18:51	Hail	1.75" golf ball	7 mi E of Selman	No narrative filed · source: Emergency Manager
2010-09-14 17:57	Wind	56 kt 64 mph	4 mi N of Selman	A power pole was snapped near County Road 198 and Highway 64. Monetary damages were estimated.
2010-08-07 17:30	Wind	52 kt 60 mph	10 mi NNW of Buffalo	Power lines were downed near the intersection of Willard Road and Adobe Springs Road. The time was estimated based on radar. Monetary damages were estimated.
2010-08-07 18:00	Wind	56 kt 64 mph	4 mi ENE of Buffalo	A power pole and the associated power lines were downed on Highway 64. Monetary damages were estimated.
2010-07-24 13:35	Wind	52 kt 60 mph	6 mi WNW of Laverne	Nickel-size hail was also reported with the wind gust.
2010-07-24 13:35	Hail	0.88" nickel	6 mi WNW of Laverne	A wind gust to 60 mph was also reported with the hail.
2010-06-13 16:45	Wind	56 kt 64 mph	4 mi E of Buffalo	The wind gust was reported on Highway 64.
2010-06-13 17:45	Wind	56 kt 64 mph	7 mi E of Laverne	Several tree limbs were downed by the strong winds. Monetary damages were estimated.

Worst storm days in Harper County

Date	Reports that day	Largest hail	Peak gust
2022-05-14	9	2.5" (tennis ball)	60 mph
2025-05-18	6	2.75" (baseball)	—
2018-06-12	6	1.5" (ping pong ball)	85 mph
2026-06-21	6	—	72 mph
2023-06-17	6	—	96 mph
2018-05-29	5	1.75" (golf ball)	—
2021-09-17	5	1" (quarter)	86 mph
2026-06-16	4	2.75" (baseball)	—
2012-04-14	4	2.75" (baseball)	—
2012-04-09	3	2.75" (baseball)	—

Reports by year

Report counts are driven partly by how many people were around to report a storm, so recent years tend to look busier than the early 2010s. Treat the trend as a reporting trend, not purely a weather trend.

Notable large-hail events (2" and up)

Date	Size	Near	What was reported
2026-06-16	2.75" baseball	3 mi W of Laverne	Reported by a broadcast media storm chaser. The location is approximate.
2025-09-08	2" hen egg	8.06 mi NE of Rosston	The location is approximate, and the event time is estimated from radar observations.
2025-09-08	2.5" tennis ball	0 mi N of Rosston	The location is approximate, and the event time is estimated from radar observations.
2025-05-18	2" hen egg	0 mi N of Laverne	The event time is estimated from radar observations.
2025-05-18	2.75" baseball	0 mi N of Rosston	The report was relayed by emergency management. The event time is estimated from radar observations.
2025-05-18	2.75" baseball	2.39 mi E of Rosston	The report was relayed through mPING. The event time is adjusted based on radar observations.
2025-04-24	2.25" tennis ball	8.7 mi ENE of Selman	Event time estimated from radar observations.
2022-05-14	2" hen egg	13.42 mi NNW of Rosston	No narrative filed

When does hail hit Harper County?

Across 17 years of records, June produced the most reports (47), followed by the months either side of it. Monthly totals:

Month	Reports	Share
January	0	0.0%
February	0	0.0%
March	2	1.4%
April	15	10.9%
May	35	25.4%
June	47	34.1%
July	10	7.2%
August	11	8.0%
September	15	10.9%
October	2	1.4%
November	1	0.7%
December	0	0.0%

Nearby counties in Oklahoma

Oklahoma County (921)Tulsa County (828)Cleveland County (677)Comanche County (502)Texas County (435)Grady County (425)Canadian County (366)Garfield County (364)Beaver County (358)Le Flore County (357)Caddo County (351)Osage County (351)

See all 77 Oklahoma counties →

About these numbers

Every row above is a report filed with the National Weather Service and archived in the NOAA NCEI Storm Events Database (FIPS 40059). Reports are eyewitness, trained-spotter and damage-survey observations, so they cluster near roads and towns and miss storms over empty country. Hail sizes are estimates. Damage figures are preliminary as filed and are never revised in this archive. Use this page for background, not for an insurance claim, a legal filing, or a roof assessment — for those, get the official record from NOAA directly.