Strong mid level winds were forced to the surface by the right front quadrant of 100+ knot jet streak passing to the north. At the sensor along the Chief Joseph highway, winds were sustained at over 50 mph for 3 hours with wind gusts as high as 83 mph.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS RIW wrote it up.
Strong mid level winds were forced to the surface by the right front quadrant of 100+ knot jet streak passing to the north. At the sensor along the Chief Joseph highway, winds were sustained at over 50 mph for 3 hours with wind gusts as high as 83 mph. Meanwhile, a mountain wave broke near Clark and brought very strong winds. There were several wind gusts of hurricane force, including a maximum of 96 mph.
The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
There were several wind gusts past 58 mph around Clark as a mountain wave broke. A gust of 96 mph was recorded at the weather station near Clark.
The WYDOT sensor along the Chief Joseph highway reported sustained wind gusts padst 50 mph, and a maximum wind gust of 83 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2017Every state in 2017This day in weather historyWarnings in Wyoming, October 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 721833, 721832.