Alta, WY Live Doppler Radar
Live radar for Alta, Teton County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Alta?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 226 days in the Teton and Gros Ventre Mountains forecast zone and Teton County — the most common reported hazard around Alta, mostly in December and February. Next come avalanches (52 days) and damaging thunderstorm winds (26 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 226 | Apr 2026 | — |
| Avalanches | 52 | Dec 2025 | Feb 27, 2009 · 3 deaths |
| Damaging thunderstorm winds | 26 | Jun 2026 | Jul 24, 2023 · $250,000 damage |
| Wildfires | 17 | Nov 2024 | Sep 8, 2012 · $90,000 damage |
| High winds | 11 | Mar 2026 | Mar 16, 1999 · $500,000 damage |
| Lightning casualties & damage | 10 | Aug 2022 | Aug 2, 2022 · 1 death |
| Flooding | 5 | Feb 2023 | Dec 11, 2011 · $15,000 damage |
| Extreme cold & wind chill | 4 | Dec 2022 | — |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Teton and Gros Ventre Mountains forecast zone and Teton County; damage is as reported, not adjusted for inflation.
How much snow does Alta get?
A normal year brings about 113 inches of snow to Alta, based on NOAA's 1991–2020 climate normals for the Alta 1 Nnw weather station in town. The snowiest month is usually January (21.7 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 5.9 | 15.8 | 21.7 | 21.7 | 16.2 | 15.3 | 13.5 | 2.5 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Alta?
The closest NEXRAD Doppler radar is KSFX (Pocatello, ID), about 95 miles west-southwest. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Alta | View |
|---|---|---|---|
| KSFX Pocatello, ID | 95 mi west-southwest | 8,900 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KRIW Riverton, WY | 137 mi east-southeast | 15,700 ft | Limited — the beam overshoots the lowest part of storms |
| KBLX Billings, MT | 187 mi northeast | 26,000 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Alta
Since 1950, NOAA has recorded 2 tornadoes within 25 miles of Alta. The strongest was an EF1 on October 15, 2025, which touched down about 3 miles east-southeast of town.
Hail: 20 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.75-inch hail on May 31, 2014.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Alta's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Alta radar FAQ
Where is the nearest weather radar to Alta, WY?
KSFX (Pocatello, ID), about 95 miles west-southwest. KRIW (Riverton, WY) is 137 miles away and also covers the area.
Does radar show snow in Alta?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Alta the lowest scan from KSFX is about 8,900 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Alta free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Alta, follow it right away — see watch vs. warning.
Radar for nearby towns
- Jackson, WY radar 24 mi
- Alpine, WY radar 42 mi
- Star Valley Ranch, WY radar 55 mi