List of United States tornadoes from August to October 2017

This page documents all tornadoes confirmed by various weather forecast offices of the National Weather Service in the United States from August to October 2017.

United States yearly total

August

August 2 event + List of confirmed tornadoes – Wednesday, August 2, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0Rend LakeJeffersonIL23:27–23:29A waterspout was photographed.

August 3 event + List of confirmed tornadoes – Thursday, August 3, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0KewadinAntrimMI22:10–22:11A few homes and outbuildings sustained minor damage. EF0Lake Winnibigoshish (1st tornado)CassMN23:04–22:15The public documented three simultaneous waterspouts. EF0Lake Winnibigoshish (2nd tornado)CassMN23:04–22:15The public documented three simultaneous waterspouts. EF0Lake Winnibigoshish (3rd tornado)CassMN23:10–22:15The public documented three simultaneous waterspouts. EF0South PhoenixMaricopaAZ00:05–00:10A brief landspout tornado was documented.

August 4 event + List of confirmed tornadoes – Friday, August 4, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EFUGreat Sacandaga LakeSaratogaNY18:50–18:51Video via Facebook documented a tornado over the Great Sacandaga Lake. EF1N of NeedmoreFultonPA21:55–22:01Approximately 150 trees were snapped or uprooted. EF1S of MaconBibbGA23:46–23:50A home sustained significant roof damage, an outbuilding was removed from its foundation and destroyed, and many trees were snapped or uprooted. A barn and an outbuilding also sustained roof damage, and a sunflower field was damaged.

August 5 event + List of confirmed tornadoes – Saturday, August 5, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF1NE of MillinocketPenobscotME02:47–02:59Over 1,000 trees were snapped or downed in a convergent pattern. EF1ShermanAroostookME03:30–03:31A large section of a roof was ripped off one barn, and a second barn partially damaged. A chicken coop was destroyed, and a residence sustained significant shingle damage. A few trees were uprooted.

August 6 event

August 7 event + List of confirmed tornadoes – Monday, August 7, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF1SalisburyWicomicoMD17:40–17:41Several businesses were damaged near Salisbury University. Cars in the parking lot of a strip mall were tossed, and structures nearby sustained minor damage. A concrete block building collapsed when its bay doors were left open. EF0Weems to IrvingtonLancasterVA18:51–18:55A couple of homes lost some of their siding and shingles. Trees were blown down. EF0S of ChampionChaseNE22:22A trained storm spotter reported a brief landspout tornado.

August 9 event + List of confirmed tornadoes – Wednesday, August 9, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0SE of Wagon MoundMoraNM23:50–23:51A KRQE viewer submitted a picture of a small tornado.

August 11 event + List of confirmed tornadoes – Friday, August 11, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0ENE of Key WestMonroeFL21:03–21:05A metal tube roof structure was flipped airborne, a boat tarp was lifted, and a folding tent structure was tossed. A boat covering frame was removed and tossed, and numerous small limbs were snapped. EF0Broad RunFauquierVA22:08–22:10Numerous trees were snapped or uprooted, some of which fell on power lines and homes.

August 12 event + List of confirmed tornadoes – Saturday, August 12, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF1McAlistervilleJuniataPA19:12–19:20A tractor trailer was flipped, homes and sheds were damaged, and a long swath of trees was snapped and uprooted. The roof was also lifted off of its base at the Juniata Mennonite School. EF0ENE of AntonWashingtonCO23:10A trained storm spotter reported a tornado over open country. EF0S of AkronWashingtonCO23:27–23:30The public reported a tornado over open country. EF0AntonWashingtonCO23:30The public reported a tornado over open country. EF0SE of AntonWashingtonCO23:45The public reported a tornado over open country.

August 13 event + List of confirmed tornadoes – Sunday, August 13, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0NNE of AmarilloPotterTX01:00–01:01A storm chaser observed a tornado.

August 15 event + List of confirmed tornadoes – Tuesday, August 15, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0N of PotterCheyenneNE00:10–00:25Broadcast media documented a tornado over open country.

August 16 event + List of confirmed tornadoes – Wednesday, August 16, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0S of NicolletNicolletMN21:46–21:52A garage was damaged on a farmstead. Trees were damaged. EF0S of NicolletNicolletMN22:03–22:09Crops and trees were damaged. EF0E of New SwedenNicolletMN22:32–22:34High-resolution satellite imagery confirmed a tornado that damaged corn fields. EF1S of GaylordNicollet, SibleyMN22:33–22:48A multi-vortex tornado struck a farmstead, causing significant damage to trees and outbuildings. EF0SW of GaylordSibleyMN23:15–23:19Video and spotter reports indicated a weak tornado crossed a road. EF0ENE of WinthropSibleyMN23:26–23:33Corn was flattened; a tree was uprooted and others were damaged. A structurally-compromised barn was destroyed. EF0New PragueLe Sueur, ScottMN00:05–00:11Minor damage to trees was noted. EF0SW of StewartSibleyMN00:21–00:22A storm chaser videoed a tornado. EF1W of FreeportStephensonIL00:21–00:28Numerous trees were damaged. Two homes suffered minor damage. EF1WNW of ElizabethJo DaviessIL00:22–00:24Large walnut trees were snapped and uprooted. EF0WNW of FreeportStephensonIL00:28–00:38Trees were damaged. EF0NW of Prior LakeScottMN00:46–00:49Fencing and tents were downed, trees were uprooted, and a fish house was rotated. EF0NW of BiscayMcLeodMN01:05–01:07Corn was damaged. EF0Southern Lester PrairieMcLeodMN01:08–01:09Some trees were uprooted and tree limbs were broken in the southern part of town.

August 17 event + List of confirmed tornadoes – Thursday, August 17, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF1ESE of CortlandTrumbullOH23:11–23:19Over 100 trees were snapped and uprooted. A mobile home was moved, with several pieces of aluminum siding and insulation displaced. EF0SE of LuptonOgemawMI23:34–23:35A few houses, an outbuilding, and several boats and docks were damaged. EF0SE of KingstonTuscolaMI01:10–01:17Sporadic tree and crop damage was observed, as well as the removal of roofing material from an outbuilding.

August 18 event + List of confirmed tornadoes – Friday, August 18, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0SW of FellsmereIndian RiverFL21:40–21:43A sheriff's deputy observed a landspout tornado. EF0SW of RockledgeBrevardFL22:29–22:30A home's roof was peeled back from an overhanging and partially removed. Minor damage occurred to a screen porch, a carport, trees, and fences. EF1NW of RushmoreNoblesMN00:26–00:35Crops were damaged, and a hog farm sustained damage, killing 20 to 30 hogs inside. EF1WNW of RushmoreNoblesMN00:37–00:43Crops were damaged. EF1BigelowNobles, OsceolaMN, IA00:47–00:54Crops were damaged, a grain bin was rolled, and a garage was destroyed. EF2NW of MelvinOsceolaIA01:07–01:27Large trees were snapped or uprooted, corn was flattened, and farm buildings were damaged or destroyed. A pickup truck was overturned, and up to 30 head of cattle were missing after the tornado. EF0ESE of LarrabeeCherokeeIA02:21–02:25Trees and crops sustained minor damage.

August 19 event + List of confirmed tornadoes – Saturday, August 19, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0NW of AlmeriaLoupNE00:40A debris signature was evident on radar. EF1NW of AlmeriaLoupNE00:48–00:50Wooden power poles were snapped, trees were damaged, and a large corrugated metal quonset hut was twisted and collapsed. EF1NW of AlmeriaLoupNE00:48–00:50An outbuilding was flipped and severe tree damage was noted. EF0W of AlmeriaLoupNE01:03An emergency manager reported a brief tornado. EF2W of AlmeriaLoupNE01:14–01:17Numerous trees were snapped and twisted, and all outbuildings were destroyed at a farmstead. Debris from the outbuildings was scattered up to a half-mile away. A boat from this location was thrown and destroyed, with parts found in a field less than a mile away. A house sustained roof damage and sustained damage from projectiles.

August 21 event + List of confirmed tornadoes – Monday, August 21, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0SW of AmesBoone, StoryIA22:52–22:55High-resolution satellite image indicated a tornado damaged trees. EF0SE of AmesStoryIA22:58–22:59High-resolution satellite image indicated a tornado damaged bean and corn fields.

August 22 event + List of confirmed tornadoes – Tuesday, August 22, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF1N of BraveGreenePA20:23–20:25Numerous trees were snapped at their trunks or uprooted. A home lost a majority of its roof, as well as its deck; a piece of deck became a missile that was driven into the windshield of a vehicle. A battery in front of a camper was lifted and tossed 20 yards. EF1NW of GeorgetownMadisonNY20:55–20:56Extensive tree damage was observed in a forest. EF1NW of BrookfieldMadisonNY21:25–21:26A couple dozen trees were downed. A greenhouse had its entire roof ripped off, while two barns had portions of their roofs blown off. A home lost a few shingles.

August 25 event Events were associated with Hurricane Harvey. + List of confirmed tornadoes – Friday, August 25, 2017EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF0NE of GalvestonGalvestonTX19:18–19:19A metal fence was damaged. EF0WSW of Jones CreekBrazoriaTX20:30–20:31Numerous trees were snapped or uprooted. A barn was damaged. EF1SW of Jones CreekMatagordaTX21:08–21:14A home sustained significant damage, a motor home was overturned, and numerous trees were snapped or downed. Several other houses and businesses sustained minor roof damage. EF0ENE of SeadriftCalhounTX21:14–21:15A shed and a carport were destroyed. EF0SW of AngletonBrazoriaTX23:11–23:20Numerous trees, roofs, and outbuildings were damaged. A barn and several outbuildings were destroyed. EF0SSW of DanburyBrazoriaTX03:44–03:52A barn and several trees were damaged.

August 26 event Texas and Louisiana events were associated with Hurricane Harvey.