visible satellite during active storm reports
Visible Satellite 20:48Z on 2017-05-17. Satellite images are derived from the Iowa Environmental Mesonet of Iowa State University.
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Tornado Reports

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Time Rating Radar State County Location Narrative
19:10Z EF0 KFSD IA Sioux Alton A brief touchdown.
19:42Z EF0 KFSD IA Sioux Matlock Brief touchdown reported.
20:48Z EF1 KOAX NE Cuming Wisner A brief tornado formed from a mini-supercell thunderstorm just over the Cuming County line.The tornado touched down across from Old Highway 8 and damaged trees before heading north and causing minor damage to a farm home. A tractor shed was destroyed and large trees had their trunks snapped before the tornado lifted just north of the farmstead.
21:16Z EF1 KDVN IA Jefferson Pleasant Plain Tornado rated an EF-1 tornado with peak winds 110 mph, a path length of 1.27 miles, and a max width of 25 yards. This rapidly moving tornado moved almost due north damaging farm outbuildings and trees. It moved from Jefferson County into Washington County. This tornado was spotted and reported by local fire department spotters.
21:18Z EF1 KDVN IA Washington Clay Tornado rated was an EF-1 tornado with peak winds 110 mph, a path length of 1.95 miles, and a max width of 25 yards. This rapidly moving tornado moved almost due north damaging farm outbuildings and trees. It moved from Jefferson County into Washington County. This tornado was spotted and reported by local fire department spotters.
21:29Z EF0 KARX MN Wabasha Plainview An EF-0 tornado produced spotty damage in Plainview. The backside of a metal shed was blown down, part of roof was taken off a storage building and the batting cage at a baseball field was destroyed.
22:04Z EF0 KDVN IL Rock Island Illinois City Tornado was rated EF-0 with peak winds of 70 mph. a path length of .71 miles and max width 25 yards. Observed by a storm chaser with video evidence of the circulation detailed a tornado that lasted about a minute, no damage was observed.
22:21Z EF1 KARX WI Trempealeau Butman Corners An EF-1 tornado moved across far southeast Trempealeau County and damaged trees and farm buildings. One barn was destroyed, part of a metal roof was taken off an outbuilding and a tree was knocked over onto the roof of a mobile home.
23:36Z EF1 KDVN IA Washington Haskins Tornado was rated was an EF-1 with peak winds of 110 mph, a path length of 5.95 miles, and a max width of 40 yards. This tornado spun up and tracked rapidly to the northeast. The tornado damaged numerous farm outbuildings, power lines and trees along its path.
23:50Z EF0 KARX IA Winneshiek Bluffton A brief EF-0 tornado touched down northeast of Ridgeway. The tornado only produced some tree damage.
00:35Z EF0 KARX MN Wabasha Elgin An EF-0 tornado briefly touched down in Elgin. It produced a short path of tree and roof shingle damage.
00:44Z EF1 KDVN IA Scott Maysville Stender Ar Tornado was rated as EF-1 with peak winds of 100 mph, a path length of 2.14 miles, and a max width of 25 yards. This tornado was associated with a squall line. Numerous trees were damaged or uprooted with a few rotten trees snapped about 20 feet above the ground. Roofing damage was observed to a new home and garage at the beginning of its path.
01:00Z EF1 KDVN IL Mercer Griffin Tornado was rated a higher end EF-1 with peak winds 105 mph, a path length of 5.73 miles with a max path width of 150 yards. This higher end EF-1 tornado caused damage to numerous farm outbuildings, a few homes and trees across Mercer and Henry counties. One house partially lost a roof while another was impelled by flying debris. Approximately 30 to 40 trees were snapped at the trunks, a couple of dozen were uprooted, with about 50 trees experiencing limb damage. This tornado continued into Henry county.
01:07Z EF1 KDVN IL Henry Mineral Tornado was rated a higher end EF-1 with peak winds 105 mph, a path length of 2.38 miles with a max path width of 150 yards. This higher end EF-1 tornado caused damage to numerous farm outbuildings, a few homes and trees across Mercer and Henry counties. One house partially lost a roof while another was impelled by flying debris. Approximately 30 to 40 trees were snapped at the trunks, a couple of dozen were uprooted, with about 50 trees experiencing limb damage. This tornado is a continuation of the tornado that touched down in Mercer county.
01:44Z EF1 KDVN IL Henry Hooppole Tornado was rated EF-1 with peak winds 95 mph, a path length of 2.06 miles and max path width of 50 yards. Damage was mainly to large branches and a few uprooted trees and snapped trunks. Damage was noted to one out building with partial removal of its roof.
02:20Z EF2 KDVN IL Henry Galva Tornado was rated EF-2 with peak winds of 120 mph, a path length of 1.29 miles and a max width 50 yards. Damage was to two snapped power poles, one home with significant damage to shingles. Another house had had roof completely removed and blew out doors with one minor injury at this location.
03:21Z EF1 KMKX IL Boone Belvidere Arpt A tornado touched down approximately two miles south of Poplar Grove. Tree branches were broken on Poplar Grove Road where the tornado touched down. A large softwood tree trunk was snapped on Beaver Road. Trees were debarked on Beaverton Road. A small outbuilding was destroyed on Edson Road. Hardwood trees were snapped at the trunk on Russellville Road and again on Capron Road. On the east side of Capron, A garage was destroyed and shingles were peeled off the north side of a home and dozens of trees were snapped. Another small outbuilding was destroyed on County Line Road with debris strewn about three quarters of a mile downstream. The tornado passed into McHenry County on County Line Road south of Hunter Road.
03:31Z EF1 KMKX IL Mchenry Chemung This is a continuation of a tornado that began in Boone County two miles south of Poplar Grove. The tornado crossed into McHenry County south of Hunter Road. Softwood trees were snapped on Hunter Road. Hardwood trees were snapped or sheared on White Oaks Road.

Storm reports are derived from "The Storm Events Database" (National Centers for Environmental Information) and/or "Past Storm Reports" (Storm Prediction Center).