137 NOUS43 KUNR 032031 PNSUNR Public Information Statement National Weather Service Rapid City SD 230 PM MDT Sun Jun 2 2018 ...INFORMATION UPDATED FOR TWO ADDITIONAL TORNADOES... ...NWS DAMAGE SURVEY FOR 6/1/18 GILLETTE WYOMING TORNADOES... During the afternoon of June 1, 2018, a storm dropped four tornadoes around Gillette, WY. Based on video evidence, a brief tornado touched down about 11 miles west of Gillette. It was located between Montgomery Road and Echeta Road, south of the Oriva Hills subdivision. It was on the ground for about four minutes, from around 1:34 pm MDT until 1:38 pm MDT. Since there was no visible damage, this tornado was rated as EF-0. As the first tornado dissipated, a second tornado developed just north of the first one. The second tornado touched down about 10 miles west northwest of Gillette around 1:41 pm MDT. It traveled in an east northeast direction and dissipated around 1:52 pm MDT. It was on the ground for around 11 minutes over the Oriva Hills subdivision. The tornado destroyed and damaged numerous homes and outbuildings, rolled vehicles, and snapped electrical transmission poles and trees. The majority of damage associated with the tornado was consistent with an EF-1 and EF-2 tornado, but the most severe damage was consistent with an EF-3 tornado. Therefore, this tornado has been rated EF-3, with winds estimated around 136 mph. The third tornado was a short-lived gustnado. It developed 3 miles north northeast of Gillette, in the Warrior Hills Subdivision. It was on the ground for one half mile, from around 1:55 pm MDT until 1:56 pm MDT. It damaged a large shed, flipped a camper onto a vehicle, destroyed another camper, and damaged several wooden fences. This tornado has been rated as EF-1, with winds estimated around 90 mph. The fourth tornado touched down over the west pit of the Eagle Butte Mine at 1:59 pm MDT, about 7 miles north of Gillette. This tornado traveled in an east northeast direction for around 8 minutes before dissipating just east of the Dry Fork Power Plant around 2:07 pm MDT. This tornado snapped and bent over seven power poles, damaged the control room building at the mine, and damaged several vehicles at the Eagle Butte Mine and Dry Fork Power Plant. A dumpster was also thrown a few hundred yards. This damage has been rated EF-1, with winds estimated around 100 mph. *** Tornado 1 *** Rating: EF-0 Estimated peak wind: unknown Path length /Statute/: Estimated 1.0 mile Path width /Maximum/: unknown Fatalities: 0 Injuries: 0 Start date: Jun 1, 2018 Start time: 134 pm MDT Start location: 11 west of Downtown Gillette Start Lat/Lon: 44.2953 / -105.7304 End date: Jun 1, 2018 End time: 138 pm MDT End location: 11 west of Downtown Gillette End_lat/lon: 44.3057 / -105.7160 *** Tornado 2 *** Rating: EF-3 Estimated peak wind: 136 mph Path length /Statute/: 3.78 miles Path width /Maximum/: 200 yards Fatalities: 0 Injuries: 2 Start date: Jun 1, 2018 Start time: 141 pm MDT Start location: 10 west northwest of Downtown Gillette Start Lat/Lon: 44.3287 / -105.7112 End date: Jun 1, 2018 End time: 152 pm MDT End location: 9 northwest of Downtown Gillette End_lat/lon: 44.3287 / -105.7112 *** Tornado 3 *** Rating: EF-1 Estimated peak wind: 90 mph Path length /Statute/: 0.5 mile Path width /Maximum/: 25 yards Fatalities: 0 Injuries: 0 Start date: Jun 1, 2018 Start time: 155 pm MDT Start location: 3 north northeast of Downtown Gillette Start Lat/Lon: 44.3278 / -105.4821 End date: Jun 1, 2018 End time: 156 pm MDT End location: 3 north northeast of Downtown Gillette End_lat/lon: 44.3298 / -105.4726 *** Tornado 4 *** Rating: EF-1 Estimated peak wind: 100 mph Path length /Statute/: 4.6 miles Path width /Maximum/: 50 yards Fatalities: 0 Injuries: 0 Start date: Jun 1, 2018 Start time: 159 pm MDT Start location: 6.5 north northwest of Downtown Gillette Start Lat/Lon: 44.3788 / -105.5516 End date: Jun 1, 2018 End time: 207 pm MDT End location: 7 north northeast of Downtown Gillette End_lat/lon: 44.3912 / -105.4603 EF Scale: The Enhanced Fujita Scale Classifies Tornadoes into the following categories. EF-0...Weak......65 to 85 mph EF-1...Weak......86 to 110 mph EF-2...Strong....111 to 135 mph EF-3...Strong....136 to 165 mph EF-4...Violent...166 To 200 mph EF-5...Violent...>200 mph NOTE: The information in this statement is PRELIMINARY and subject to change pending final review of the event and publication in NWS Storm Data. $$