Park storm history

A developing thunderstorm produced a single bolt of lightning that killed a 70-year-old man during a camping and fishing trip to Upper Sunshine Reservoir southwest of Meeteetse. The man and his son went to shore to avoid the developing storm. The man was struck when he attempted …

Part of the northeastern entrance road to Yellowstone National Park was washed out near the Soda Butte Picnic Area. There were also mudslides and downed trees in the area. Yellowstone National Park press releases estimated preliminary repair costs to be 25 million for the northea…

Wind gusts as high was 64 mph were reported southeast of Wapiti.

At Mammoth, quarter size hail was reported.

The Powell airport reported a wind gust of 62 mph.

A 65 mph wind gust was reported at Irma Lake.

A thunderstorm brought wind gusts as high as 79 mph at Irma Lake. A 61 mph wind gust was reported 9 miles SSE of Wapati.

Wind gust to 66 mph on the mesonet station PC261 Cedar Mountain near Cody, WY.

Wind gusts as high as 59 mph were reported along Highway 120 to the north of Meeteetse.

A thunderstorm produced a microburst that caused damage in the Lake Village area of Yellowstone Park, along the north shore of Yellowstone Lake. Several hundred trees were downed by the wind. Some trees landed on vehicles. The Lake Yellowstone Hotel also suffered minor damage fro…

A trained spotter reported 1 inch hail along Highway 14 to the east of Cody.

Trained spotters reported golf ball-sized to lime-sized hail in the vicinity of Meeteetse, WY. Several people reported damaged skylights and cracked windshields from the hail.

A 60 mph wind gust was reported at the Powell airport.

A tributary of Kitty Creek rose out of its banks and pushed mud and debris from the higher elevations onto local roads and a cabin area south of US Hwy 14 (North Fork Highway). A WYDOT official reported mud and debris were 3 feet deep in some locations just upstream along US Hwy …

Strong thunderstorm winds blew down trees onto power lines that caused power outages to 400 customers. A maximum wind gust of 68 mph was reported at the Powell airport.

The USGS river gauge on the Lamar River near Tower Falls surged well above the previous record of 12.15', cresting near 16.79' around 6:30 AM MST, which is over 4' higher than the previous record.

A combination of heavy rain and rapid snowmelt led to severe flooding in Yellowstone Park. Along the road to the northern entrance to Yellowstone Park, the road was completely washed out in several locations. Yellowstone National Park created an online video and picture album to …

The road between Tower Junction and Canyon Junction was closed by a mudslide on the road.

A section of road to the south of Canyon Village collapsed to heavy rain and flooding.

In Park County, a trained spotter reported nickel-sized hail with a thunderstorm near Powell, WY.

An 82 mph wind gust was reported at the East Entrance of Yellowstone Park. Many trees were downed and power was knocked out. The road was closed until 7 pm due to an avalanche.

A lightning strike set the historic Mount Holmes fire lookout on fire, resulting in a total loss. The lightning strike also damaged a radio repeater on the mountain.

Nearly an inch of rain and a large amount of large hail fell in only 20 minutes around Powell, Wyoming. The result were numerous areas that were flooded, including streets, businesses and homes. The main damage was from water in basements and flooded roads.

A park ranger at Yellowstone Park reported penny size hail at Madison Junction.

The public reported nickel size hail west of Meeteetse.

Hail fell along the path of a severe thunderstorm. The maximum hail size reported was quarter size 7 miles east of Pitchfork.

The public reported a funnel cloud to the west of Meeteetse.

The weather sensor north of Meeteetse reported several wind gusts past 58 mph, including a maximum gust of 76 mph.

A foot of water was reported to be flowing across Highway 120 around 5 miles south of Meeteetse.

A television station forwarded a report of quarter size hail to the east of Cody.

The Park Service reported two cars were damaged by a lightning strike in the Old Faithful Parking Lot. No injuries were reported.

Emergency management reported flooding along the Greybull River. The flooding remained over low lying areas and caused little or no damage.

The South Fork of the Shoshone River crested at around 9.4 feet on June 18th and June 21st. The flooding remained in the low lands around the river and caused little to no damage.

A trained spotter reported nickel size hail 10 miles west of Wapati.

Snow melt flowing downstream from the Absarokas brought flooding and high water along the South Fork of the Shoshone River. At the Ishawooa Bridge, downstream from Valley and near Aldrich Creek, the high water severely damaged the bridge. The bridge remained open, but was reduced…

A rancher along the Greybull River northeast of Meeteetse reported one inch diameter hail.

The wind sensor along State Highway 120 on Meeteetse Rim recorded a thunderstorm wind gust to 63 mph.

The river gauge on the South Fork of the Shoshone River near Valley reached or topped flood stage three separate times due to diurnal fluctuations between the evening of June 8 and the morning of June 13. Water levels typically peaked around midnight with a crest of 8.43 feet at …

The cooperative observer southwest of Meeteetse reported hail of various sizes with a few stones the size of quarters.

Yellowstone National Park dispatch indicated 50 trees down between Lake and Sylvan Pass near the East Entrance to the park.

A trained spotter reported hail up to the size of nickels covering US Highway 14/16/20 near milepost 71.

A thunderstorm rapidly developed to the south of Cody and tracked north over the city producing heavy rain and copious amounts of small hail. Hail drifts were measured in feet in some areas with a few low spots accumulating close to six feet of hail. The hail prevented the heavy …