Trace the Highest-Elevation Tornadoes in US History
Cold, thin, stable mountain air is usually a tornado's worst enemy. A handful of storms have ignored that anyway, at elevations that still surprise the meteorologists who confirm them.
Nine campers near Enos Lake, in Wyoming's Teton Wilderness, heard something on the afternoon of July 21, 1987 that they could not explain at the time. It sounded, several of them said later, like a train roaring past, except there was no train and no visible funnel cloud against the ridgeline above them. I went looking for the storm that made that sound, and it turned out to be one of the most violent tornadoes ever confirmed in the United States, discovered almost by accident, months after the fact.
The tornado crossed the Continental Divide at 10,070 feet, an F4 on the old Fujita scale with winds estimated between 207 and 260 miles per hour, cutting a path 24.4 miles long and averaging 1.6 miles wide through Yellowstone and the surrounding wilderness. Ted Fujita himself surveyed the damage and initially assumed he was looking at straight-line wind destruction, since nobody had reported seeing a funnel. Roughly a million trees came down. Large Engelmann spruce were stripped of bark. Nobody was hurt, because almost nobody was there.
Elevation is usually the enemy of a tornado, not the trigger
Mountains do not help tornadoes. Rugged terrain and thin air typically work against the conditions a storm needs, which is warm, moist, unstable air near the surface, according to Fox Weather's reporting on the subject. Air gets cooler, drier and more stable the higher it sits, and that stability is exactly what a developing tornado needs to punch through. When a tornado does spin up at altitude, it is usually smaller and shorter-lived than its lowland cousins, and it is much harder for anyone official to confirm, since these things tend to happen where almost nobody is standing.
The current record holders
- 12,600 feet, May 29, 2021 - West Elk Mountains near Crested Butte, Colorado. A short-lived landspout tornado, 0.65 miles long and about 20 yards wide, the highest confirmed in US history.
- 12,156 feet, July 7, 2004 - Rockwell Pass, Sequoia National Park, California. Rated F0, with a 40-yard-wide path.
- 11,900 feet, July 28, 2012 - Mount Evans (now Mount Blue Sky), Colorado. No official rating and no reported damage.
- 11,400 feet, August 17, 1984 - Longs Peak, Rocky Mountain National Park, Colorado.
- 11,300 feet, September 13, 2025 - Sawtooth Mountain, Colorado. Rated EF1, with 88 mph winds along a 0.85-mile path.
Strong surface winds in the vicinity of the West Elk Mountains near Crested Butte, Colorado, combined with local terrain features, aided in the spin-up of a short-lived landspout tornado.
A lower, fresher example reopened the conversation
On September 18, 2026, the Weather Service confirmed a tornado had touched down near a summit along a ridgeline extending from Francis Peak in Utah's Davis County, at an elevation of roughly 7,500 feet, about two miles east of Fruit Heights. That is well short of the record club above, but still rare enough for a state that does not see many tornadoes to begin with. Forecasters used video shared on social media, showing rotation reaching the ground and debris lofted into the air, to confirm it happened at all, then estimated its timing from radar data and pinned its exact location by comparing terrain features in the footage to topographic maps. Meteorologists put its likely strength between EF-0 and EF-2, pending a full damage survey in mountainous terrain that makes surveys slow. No damage was reported, since the tornado touched down in an unpopulated area.
I like that detail more than I expected to. A tornado can now get confirmed by an agency that was not there, using a stranger's phone footage and a map, the same basic method that solved a Wyoming mystery back in 1987, just faster and with far less guesswork involved.
What holds across every entry on this list, low or high, rated or unrated, is that nobody died and almost nobody was even nearby. The elevation that keeps most tornadoes from forming at all also tends to keep people out of the way on the rare occasions one does.
Sources
Every factual claim above traces to one of these. Links open in a new tab.
- Highest-elevation tornadoes ever documented in US history
- 1987 Teton-Yellowstone tornado
- Video confirms tornado in Davis County, as severe storms pass through Utah
- National Weather Service confirms tornado touched down in mountains of Davis County
- VIDEO: Tornado confirmed to have touched down in Davis County
