| May 2007 | Tornado (EF1) | Arnett | $110,000 | Windows were blown out of a house west of Arnett. Surrounding the house, a barn and several outbuildings were destroyed. Farm equipment at the home was also destroyed. Numerous tree limbs and power lines were downed. Monetary damages were estimated. |
| May 2025 | Tornado (EF3) | Arnett | $100,000 | This tornado began near the intersection of E0630 Road and N1760 Road, breaking four power poles and damaging trees. It moved east-northeast along E0630 Road with extensive tree damage noted just east of N1770 Road. The tornado then turned more northeast and moved over open country. For much of the path, there were few if any damage indicators, but drone imagery from surveys by the National Severe Storms Laboratory and Disaster Imaging Inc, as well as visual sightings of the tornado confirms that this tornado was continuous along this 5 mile path. Additional tree damage was noted along E0620 Road as the tornado continued moving northeast, with the most severe damage along N1810 road about one-half mile south of E0610 Road where trees were partially debarked and only stubs of large limbs were left. The tornado was rated EF3 based on this severe tree damage. Near the end of the track, the tornado appeared to be at its most intense as it turned north with more extensive tree damage along E0610 Road on the western edge of the city of Arnett. A large shipping container was also displaced 175 feet at this location. This tornado turned northwest and dissipated just west of Arnett near US Highway 60.||Researchers with the National Severe Storms Laboratory, the University of Oklahoma, and the OTUS (Observation of Tornadoes by UAS Systems) Project collected detailed datasets during the tornado as well as performing detailed damage surveys. |
| June 2025 | Tornado (EF2) | Arnett | $75,000 | This large tornado started near the Texas state line and moved southeast through southwestern Ellis County. It was rain-wrapped much of the time, although research radars and the damage survey confirmed it's existence.||The tornado moved southeast causing extensive roof damage to a home and a barn as well as causing significant damage in groves of trees near Little Robe Creek, including snapping and debarking the trees. The tornado continued southeast and caused more extensive tree damage along County Roads D1695 and E0720. One home that had been burned in the Smokehouse Creek wildfire (February 2024) was further damaged with the tornado scattering the remnants of the house.||The tornado severely damaged more trees and downed power line along County Roads N1730 and E0730 and along the Canadian River before crossing into Roger Mills County. |
| April 2000 | Hail | Arnett | $50,000 | Golf ball size hail (1.75 inches) damaged many roofs and dented numerous vehicles. |
| July 1996 | Thunderstorm Wind | Arnett | $50,000 | no account filed |
| June 2025 | Tornado (EF1) | Arnett | $20,000 | While the large rain-wrapped tornado was moving through southwest Ellis County, storm chasers observed a parallel tornado. Information from emergency management and an NWS storm survey indicated this tornado produced tree damage along County Road N1710, then damaged two barns along County Road E0690 as the tornado moved east-southeast. |
| May 2025 | Tornado (EF1) | Arnett | $15,000 | After the EF3 tornado dissipated just west of Arnett, another tornado developed just northwest of Arnett and moved northeast. Trees and an oil field building were damaged by this tornado. |
| June 2023 | Tornado (EF1) | Arnett | $10,000 | This tornado moved into Ellis County from Lipscomb County Texas (see entry in Texas panhandle from NWS Amarillo). In Oklahoma, this tornado produced scattered tree damage as it moved east-southeast, including snapping or uprooting trees at it approached County Road 171. |
| May 2007 | Tornado (EF0) | Arnett | $10,000 | This tornado developed in northern Roger Mills County 4 miles north of Dempsey and moved north-northeast crossing into Ellis County about 16 miles south of Arnett. No damage was reported in this rural area of the county, although the tornado was reported as a wide tornado at times. As the tornado approached U.S. Highway 283, it was reported to be a well-developed cone shaped tornado with occasional multiple vorticies. Tree limbs were reported downed where it crossed U.S. Highway 283. The tornado dissipated about a mile after crossing the highway. Monetary damages were estimated. |
| July 1998 | Thunderstorm Wind | Arnett | $7,000 | no account filed |
| September 1993 | Thunderstorm Wind | Arnett | $5,000 | no account filed |
| May 2007 | Tornado (EF0) | Arnett | $3,000 | The tornado remained over open country throughout its life span. A few trees, power poles, and power lines were damaged. Monetary damages were estimated. |
| June 2023 | Thunderstorm Wind | Arnett | $2,000 | Reports of power line damage in the community of Arnett. Time is radar estimated. |
| June 2023 | Thunderstorm Wind | Arnett | $2,000 | MPing report of power pole damage along US Highway 60. Time is radar estimated. |
| May 2022 | Thunderstorm Wind | Arnett | $1,000 | Power pole downed. |
| May 1999 | Thunderstorm Wind | Arnett | $10 | Winds were estimated between 60 mph and 80 mph. |
| July 1998 | Thunderstorm Wind | Arnett | $10 | no account filed |
| May 2025 | Hail | Arnett | - | Measurement provided by a broadcast media storm chaser. |
| May 2025 | Thunderstorm Wind | Arnett | - | Arnett (ARNE) Mesonet observation. |
| May 2025 | Tornado (EF0) | Arnett | - | Immediately after the EF3 tornado dissipated west of Arnett, video from an off-duty Storm Prediction Center employee observed an anticyclonic tornado looking south from the intersection of County Roads E0620 and N1810. The tornado was brief, and the specific location is estimated. |
| May 2025 | Tornado (EF0) | Arnett | - | This tornado moved into Ellis County from Hemphill County TX crossing the state line just south of Texas Farm-to-Market Road 2758 and Oklahoma County Road E0690. A storm survey by the NWS Office in Amarillo observed tree damage along E0690 Road just east of the Texas state line, and along County Road N1690 south of E0680 Road. The tornado dissipated very closer to E0680 Road about 250 yards west of N1690 Road.||Geolocation of drone footage of the tornado from the OTUS (Observations of Tornadoes by UAV Systems) Research team showed that while the tornado moved generally northeast, numerous variations in the motion occurred.||This tornado was rated EF1 based on damage in Hemphill County TX, but only EF0 damage could be confirmed in Oklahoma. |
| May 2025 | Hail | Arnett | - | The report was relayed through mPING. |
| May 2025 | Hail | Arnett | - | The report was relayed through mPING. |
| May 2025 | Hail | Arnett | - | The report was relayed through mPING. The event time is adjusted based on radar observations. |
| May 2025 | Hail | Arnett | - | The report was relayed through mPING. |
| May 2025 | Hail | Arnett | - | An image was shared on social media. The location is approximate. |
| May 2025 | Hail | Arnett | - | An image showing a ruler measurement was shared on social media. The location is approximate, and the event time is estimated from radar observations. |
| May 2025 | Hail | Arnett | - | The report was relayed through mPING. |
| May 2025 | Hail | Arnett | - | An image was shared on social media. The event time is estimated from radar observations. |
| May 2025 | Hail | Arnett | - | The report was relayed by emergency management. The location is approximate, and the event time is estimated from radar observations. |
| June 2025 | Hail | Arnett | - | The report was relayed through mPING. The event time is adjusted based on radar observations. |
| June 2025 | Thunderstorm Wind | Arnett | - | Arnett (ARNE) Mesonet observation. |
| July 2025 | Thunderstorm Wind | Arnett | - | Arnett (ARNE) Mesonet observation. |
| July 2025 | Thunderstorm Wind | Arnett | - | Arnett (ARNE) Mesonet observation. |
| September 2025 | Thunderstorm Wind | Arnett | - | An estimated wind gust from a broadcast media storm chaser. The location is approximate. |
| May 2024 | Hail | Arnett | - | Relayed image. Time is radar estimated. |
| May 2024 | Hail | Arnett | - | Time is radar estimated. |
| May 2024 | Hail | Arnett | - | MPing report. Time adjusted based on radar imagery. |
| May 2024 | Hail | Arnett | - | Time is radar estimated. |
| June 2023 | Hail | Arnett | - | MPing report. |
| August 2023 | Hail | Arnett | - | Reported near the U.S. Highway 60 and U.S. Highway 283 intersection. |
| July 2023 | Thunderstorm Wind | Arnett | - | Arnett (ARNE) Mesonet observation. |
| July 2023 | Thunderstorm Wind | Arnett | - | Arnett (ARNE) Mesonet observation. |
| May 2018 | Hail | Arnett | - | Reported via sheriff's office. |
| May 2018 | Hail | Arnett | - | Via SpotterNetwork. Time estimated by radar. |
| August 2016 | Thunderstorm Wind | Arnett | - | No damage was reported. |
| April 2012 | Tornado (EF3) | Arnett | - | The tornado developed south of Arnett and moved northeast. Two homes were categorized as destroyed and a few other homes sustained damage. Trees and power lines were also damaged as the tornado moved toward the Woodward county border. The tornado eventually crossed the border, doing substantially more damage towards Woodward. |
| May 2012 | Thunderstorm Wind | Arnett | - | A heat burst within the anvil of the parent storm generated a 72 mph wind gust. No damage was reported. |
| May 2010 | Tornado (EF0) | Arnett | - | A tornado was observed 1 mile west of Packsaddle in extreme southern Ellis County. No damage was reported with the tornado. |
| July 2010 | Thunderstorm Wind | Arnett | - | No damage was reported with the wind gust. |
| April 2009 | Tornado (EF2) | Arnett | - | This tornado moved into Ellis County from northern Roger Mills County. As the tornado moved into the Packsaddle area north of the Canadian River and east of US-283, an unanchored mobile home along EW-77 Road was destroyed with the steel frame of the mobile home tossed about 100 yards to the northeast. Significant tree damage also occurred in this area. Although the tornado remained large as it moved northeast from this area, it remained over relatively rural areas and no other significant damage was reported. |
| May 2007 | Hail | Arnett | - | One inch hail was reported. |
| May 2007 | Tornado (EF0) | Arnett | - | Emergency management officials and storm chasers reported a tornado developed southeast of Arnett, and moved north. The tornado crossed U.S. Highway 60 about 2 miles east of Arnett. This is the fifth and final tornado associated with the northern tornadic supercell. |
| May 2007 | Tornado (EF0) | Arnett | - | Emergency management officials reported a tornado touched down briefly about 10 miles south-southeast of Arnett. This tornado caused no known damage. This was the fourth tornado associated with the northern tornadic supercell. |
| April 2006 | Hail | Arnett | - | Hail was observed 1 mile south of Lake Lloyd Vincent. |
| June 2006 | Thunderstorm Wind | Arnett | - | Wind gust was measured by the Oklahoma mesonet. |
| June 2005 | Flash Flood | Arnett | - | After a brief break from the heavy rains, already saturated land received additional heavy rainfall in the afternoon across Ellis county causing additional flash flooding west of Arnett, OK. Several rural roads were scoured or covered by the floodwaters. |
| June 2005 | Flash Flood | Arnett | - | Multiple rounds of showers and thunderstorms on June 10-13 produced 3-day rainfall totals up to 7 inches over parts of Ellis county in northwestern Oklahoma. The ground eventually became saturated in some areas during this period producing flash flooding in Ellis county. Several rural roads were scoured or covered by floodwaters in Ellis County during this period, including some roads west of Arnett, OK. |
| March 2004 | Tornado (F0) | Arnett | - | A highly visible tornado was observed in open country. No damage was reported. |
| August 2003 | Thunderstorm Wind | Arnett | - | Wind was measured by the Oklahoma mesonet. |