AtmosDays

Hail and wind reports › August 11, 2026 › South Dakota

Hail and wind reports in South Dakota, August 11, 2026

20 hail, 46 wind and 0 tornado reports; largest hail 4.00 in; strongest gust 111 mph.

‹ August 10, 2026 · August 12, 2026 › · All dates

Time (UTC)TypeSize / speedPlaceCountyNotes
08-11 20:24Hail1.50 in1 NNW NemoLawrence(UNR)
08-11 20:30Hail2.50 in3 NNW Johnson SidingPenningtonAlong Bogus Jim Rd. Photo via social media. Time estimated based on radar. (UNR)
08-11 20:34Hail1.50 in2 W Black HawkMeade(UNR)
08-11 20:55Hail2.50 inRockervillePennington(UNR)
08-11 21:10Hail3.00 in3 ESE RockervillePenningtonAlong Hart Ranch Rd W. Photo received via social media. Time estimated based on radar. (UNR)
08-11 21:18Hail2.75 in5 WNW HermosaCusterUpdated. Hail lasted for 10-15 minutes. 3 skylights were broken. (UNR)
08-11 21:35Hail3.60 in2 SSW HermosaCusterMeasured along Highway 79 a bit further north than previous report. Via Spotter Network. Time estimated based on radar. (UNR)
08-11 22:10Hail3.00 in7 W HermosaCusterMeasured with a tape measure. Cars reported severely damaged. Time estimated based on radar. (UNR)
08-11 22:37Hail2.75 in4 WSW FairburnCusterVia Spotter Network. Time estimated based on radar. (UNR)
08-11 22:40Hail1.00 in8 WSW LadnerHarding(UNR)
08-11 23:16Hail3.00 in13 E Buffalo GapCusterReported via Spotter Network along Riverside Rd. Time adjusted based on radar. (UNR)
08-11 23:17Hail2.75 in8 N HardingHardingHail punched numerous holes in residential siding. Time estimated based on radar. (UNR)
08-11 23:20Hail1.00 in6 SW NemoLawrence1 mile west of Merritt. Photo via social media. Time estimated based on report and radar. (UNR)
08-11 23:45Hail1.00 in3 WNW Hill CityPennington(UNR)
08-11 23:48Hail4.00 in6 NW OglalaOglala LakotaMeasured with calipers. Time estimated based on radar. (UNR)
08-11 23:50Hail1.00 in1 N RedigHarding(UNR)
08-12 00:05Hail3.00 in5 SE OglalaOglala LakotaHail stone remained lodged in roof after penetrating both the shingles and underlying plywood. Photos received via social media. Time of report adjusted based on radar. (UNR)
08-12 00:20Hail3.00 in1 SSE Pine RidgeOglala LakotaSevere damage to homes and vehicles reported. Holes in siding and roofs. Windows shattered. Report and photos via social media. Time estimated based on radar. (UNR)
08-12 00:45Hail1.00 in14 NE NewellButteQuarter size hail confirmed via social media photo. Time estimated based on radar. (UNR)
08-12 03:32Hail1.25 in1 NE Cedar PassJacksonmPING report (UNR)
08-11 23:07Wind60 mph12 ENE Buffalo GapCusterMostly quarter size hail with some stones as large as golf balls. Hail did not cover the ground. Winds estimated at 60 MPH. Power out. Time estimated based on radar. (UNR)
08-11 23:09Winddamage7 E Camp CrookHardingWires down. Harding Rd blocked and closed from Highway 20 to Gilbert Rd. Numerous power outages across the western half of Harding County. Time estimated based on radar (UNR)
08-11 23:09Wind59 mph9 ENE Camp CrookHarding(UNR)
08-11 23:50Wind63 mph27 WNW Castle RockButteTime estimated from radar. (UNR)
08-11 23:53Wind60 mph2 S RedigHardingStorm is producing prodigious lightning. (UNR)
08-12 00:20Wind67 mph17 W Castle RockButte(UNR)
08-12 00:20Winddamage4 WNW Castle RockButteWires down on Highway 168. Time estimated based on radar. (UNR)
08-12 00:25Wind76 mph6 SW Castle RockButte(UNR)
08-12 00:34Wind75 mph8 S HooverButteMeasured on a personal weather station. (UNR)
08-12 00:40Wind92 mph6 SW Castle RockButte(UNR)
08-12 00:41Winddamage11 NE NewellButteCamper and storage unit were both flipped. Nearby measured wind gust of 111 MPH. Time estimated based on radar and measured wind gusts. (UNR)
08-12 00:51Wind111 mph13 NE NewellButteWinds sustained at 58 MPH gusting to 111 MPH. (UNR)
08-12 01:11Wind70 mph13 NE NewellButte(UNR)
08-12 01:25Wind59 mph6 WSW FairpointMeade(UNR)
08-12 01:35Wind65 mphUnion CenterMeade(UNR)
08-12 02:00WinddamageElm SpringsMeade9 power poles reported down near Elm Springs with outages across the area. Time estimated based on radar and nearby measured wind gusts. (UNR)
08-12 02:05Wind66 mph2 E Elm SpringsMeade(UNR)
08-12 02:20Wind67 mph3 S CreightonPennington(UNR)
08-12 02:36Wind79 mph3 NW WastaPennington(UNR)
08-12 02:40WinddamageWastaPenningtonMultiple vehicles on Interstate 90 near Wasta reported to be rolled over due to severe thunderstorm winds. Nearby measured wind gusts of 79 MPH...72 MPH...and 69 MPH. T (UNR)
08-12 02:40Wind76 mph3 S CreightonPennington(UNR)
08-12 02:54Wind58 mph5 ESE OwankaPenningtonMeasured on a personal weather station. (UNR)
08-12 03:24Wind70 mphInteriorJacksonMeasured on a personal weather station in Interior. (UNR)
08-12 03:25Wind102 mph4 E Cactus FlatJackson(UNR)
08-12 03:42Wind74 mph3 E PhilipHaakon(UNR)
08-12 03:45Wind66 mph4 E Cactus FlatJackson(UNR)
08-12 03:55Wind58 mph5 ENE WanbleeJackson(UNR)
08-12 04:00WinddamageKadokaJacksonMultiple semi trailers reported blown over near Kadoka. Time estimated based on radar and nearby measured wind gusts. (UNR)
08-12 04:10Wind90 mphBelvidereJacksonWinds estimated at 90 MPH. Generator damaged. Reporting party had to evacuate camper for safer shelter. A wind gust was measured at 102 MPH west of this location. Time (UNR)
08-12 04:10Wind66 mph1 NE MidlandHaakon(UNR)
08-12 04:11Winddamage1 S BelvidereJackson4 transmission structures reported down near Belvidere. Nearby measured wind gust of 90 MPH. Time estimated. (UNR)
08-12 04:25Wind61 mph9 ENE BelvidereJackson(UNR)
08-12 04:30WinddamageCedar ButteMelletteOutbuildings blown over. Time estimated based on radar and nearby measured wind gusts. (UNR)
08-12 04:30Wind83 mph4 WNW Cedar ButteMellette(UNR)
08-12 04:52WinddamageWhite RiverMelletteUpdated. Widespread and significant wind damage reported across the White River area. Numerous large trees down including on top of a home and on top of at least two ve (UNR)
08-12 04:55Wind96 mph1 S White RiverMellette(UNR)
08-12 05:03Winddamage9 N RosebudTodd*** 1 Inj *** Mission Volunteer Fire and Rescue reports RV blown over and rolled 50 feet in the area of Old Ring Thunder Rd. 1 person trapped inside with traumatic inju (UNR)
08-12 05:03Winddamage12 S White RiverMelletteNumerous large trees snapped and uprooted at Moran Ranch. Damage to grain bins and outbuildings. Fences crushed and driveway blocked. Time estimated based on radar and (UNR)
08-12 05:05WinddamageWoodMelletteOne person hit in the chest with a large tree limb while attempting to seek shelter in a basement at the house next door but was not injured. Numerous large tree limbs (UNR)
08-12 05:14WinddamageSaint FrancisToddTree down on power lines. Time estimated based on radar and nearby measured wind gusts. (UNR)
08-12 05:15Wind90 mph7 ESE RosebudTodd(UNR)
08-12 05:15WinddamageOkreekToddUpdated. 3 power poles broken near Okreek. Wood built carport destroyed with damage to vehicle. Large tree limbs down. Residential windows blown in. Time estimated base (UNR)
08-12 05:37Wind61 mph15 SSE MissionTodd(UNR)
08-12 06:07Wind77 mphWewelaTripp(UNR)
08-12 06:09Wind63 mph1 NNE RosebudToddMeasured on a personal weather station near Rosebud Sioux Tribal Airport. (UNR)
08-12 06:27Wind83 mphWewelaTripp(UNR)

Preliminary local storm reports from NOAA's Storm Prediction Center, made by trained spotters, the public and National Weather Service offices. Not every storm is reported, reports can be revised, and a report near a property shows storm exposure, not proof of damage. A report day runs from 7 a.m. Eastern (12:00 UTC) to 7 a.m. the next day; times are UTC.

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