Wyoming
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Sublette, Fremont, Lincoln, Teton
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Big Piney, Pinedale, Daniel, Lander
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October 16, 2016
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Winter Storm, High Wind
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"On October 16, 2016, strong, moist westerly flow off the Pacific Ocean brought abundant moisture to the mountains and valleys of western Wyoming. The precipitation fell as snow in the mountains, with the heaviest snow of 12 to 18 inches falling in the Salt River, Wyoming, and western Wind River ranges. The position and strength of a jet streak helped to produce and sustain persistent snow in a swath from Big Piney to Pinedale in Sublette County. Snowfall rates reached up to 2 inches an hour during the late evening of Sunday, October 16, and early morning hours of Monday, October 17. Totals within this heavy snow band ranged from 8 inches to 15 inches with the greatest totals from around Daniel to Pinedale. In Big Piney, the heavy, wet snow caused the collapse of a school bus building roof resulting in $15,000 in damages. East of the Continental Divide the story was strong downslope wind. Wind gusts in the Lander Foothills topped 70 mph with a peak of 80 mph along the North Fork of the Popo Agie River. The strong winds blew over a tree in a Lander residential area." - WY Hazard Mitigation Plan 2021-2026
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Wyoming
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Natrona
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July 14, 2006
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Wildfire
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The Jackson Canyon Wildfire was ignited by a lightning strike near Coal Mountain in Jackson Canyon. The fire burned 11,256 acres of land, including seven cabins, one barn, and two outbuildings before it was contained on August 23. The estimated cost of suppression was $3.8 million.
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Wyoming
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Crook
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Carlile
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July 14, 2006
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Wildfire
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The Thorn Divide Complex began as 26 lightning-ignited fires. Before firefighters contained the fire, 14,874 acres and 2 buildings were burned. Supression costs were estimated at $7 million.
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Colorado
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December 20, 2006
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Winter Storm
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An upslope snowstorm first dropped 20+" on the Denver Metro area, then the focus shifted east and south, with totals of 12-36" in southeastern Colorado and 30-48" in the foothills and mountains of southern Colorado. Strong winds created enormous drifts and led to enormous loss of livestock.
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Wyoming
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Campbell
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Gillette
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May 26, 2010
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Hail
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$61,661,300.00
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$46,000,000.00
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A severe thunderstorm produced hail up to around golf-ball size in Gillette, causing extensive damage across the city. The storm moved generally from south to north through the city. The most heavily damaged areas were in the Westover Hills and Foothills subdivisions, as well as the downtown area. The hail damaged the roofs and windows of several thousand homes and buildings. Thousands of automobiles were damaged across the city.
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Wyoming
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Teton
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Afton
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May 18, 2011
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Landslide
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Slide blocked Highway 89, forcing Afton residents to detour 75 miles through Idaho to get to Jackson.
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Colorado
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Boulder
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Salina, Gold Hill
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September 06, 2010
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Wildfire
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$287,331,000.00
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$214,352,000.00
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The Fourmile Canyon Fire started after a month of extremely dry conditions, on a day with unusually strong winds for early September. Most of the 169 homes destroyed were burned on the first day of spread. About 6,500 acres were burned, and the city of Boulder itself was at risk on September 10.
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Wyoming
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February 12, 1887
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Winter Storm
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"The Blizzard of 1887 was just one part of an absolutely brutal winter. Cattle herds across the plains were decimated. Spoiled by previously mild winters and picture-perfect summers, ranchers in Wyoming and Montana had overstocked their lands. They were completely ill-prepared for the coming winter. For months, low temperatures, high winds, and record snowfall in Wyoming made it a battle to keep cattle fed. When a huge storm began in January, over an inch of snow fell every single hour for over 16 hours straight. Ranchers had no way to easily access their already fragile herds. The small bits of grass that the cattle had available to them was covered in snow and ice. They had no way to feed. In the end, hundreds of thousands of cows starved to death by the time spring arrived and the pastures were thawed." - Only In Your State
"The winter of 1886-1887 brought one of the most significant early storms recorded. The snow came early and grew very deep. Then, a freak thaw turned much of this to water. Cold weather moved back in, freezing the thawed liquid into a crust of ice, which prevented cattle from getting through to the forage underneath. These conditions, accompanied by a blizzard of unusual severity, caused a loss of more than 50 percent of the state's livestock. The snow was 6 feet deep on the level between Mountain Home and Woods Landing. On February 12, 1887, the storms were still raging over the state, and the snow was packed so hard that stages could drive over it. Trains were stalled on their tracks." - WY Hazard Mitigation Plan 2021-2026
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Colorado
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Arapahoe, Jefferson, Adams
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Englewood, Arvada, Wheat Ridge, Lakewood, Brighton
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July 20, 2009
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Hail
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$1,049,090,000.00
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$770,000,000.00
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A line of severe thunderstorms with damaging winds dropped large hail over a swath of the Denver metro area and spawned two weak tornadoes.
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Wyoming
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Park, Teton
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June 12, 2022
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Flood
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"Unprecedented precipitation and flooding clobbered Yellowstone National Park starting Sunday, destroying bridges, making roads impassable, stranding scores of people and wreaking untold havoc on infrastructure within Northwest Wyoming’s tourism engine. The scope of the damage prompted park officials to close all park entrances Monday.
A U.S. Geological Survey gauge on the Lamar River near the Tower Ranger Station tells the tale of the remarkable weather event. The tributary to the Yellowstone River on Monday topped 18,000 cubic feet of water per second, which surpassed the previous daily record by nearly 50%. The Lamar rose so high that its peak water level, 17 feet over the riverbed, surpassed the gauge’s “operational limit” by 2 feet, and the water level was 5 feet higher than during any other time in 82 years of recordkeeping.
The Yellowstone River water level at the Corwin gauge approached 14 feet, shattering a 104-year-old record by 2.5 feet, according to its USGS monitor." - WyoFile
WyoFile Images, NBC Images, AP Images
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