Lost River, ID Live Doppler Radar
Live radar for Lost River, Custer County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Lost River?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 22 days in the Lost River Valleys forecast zone and Custer County — the most common reported hazard around Lost River, mostly in July and May. Next come high winds (19 days) and heavy snow & winter storms (18 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 22 | May 2026 | Jul 3, 2008 · $420,000 damage |
| High winds | 19 | Jun 2026 | Dec 17, 2025 · $20,000 damage |
| Heavy snow & winter storms | 18 | Feb 2025 | — |
| Flash flooding | 9 | Sep 2025 | — |
| Flooding | 8 | Jun 2023 | May 1, 2017 · $3.5 million damage |
| Wildfires | 6 | Jun 2021 | Jun 15, 2021 · $22,000 damage |
| Extreme cold & wind chill | 4 | Jan 2025 | — |
| Debris flows | 2 | Aug 2025 | — |
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 Lost River Valleys forecast zone and Custer County; damage is as reported, not adjusted for inflation.
Which radars cover Lost River?
The closest NEXRAD Doppler radar is KSFX (Pocatello, ID), about 62 miles southeast. 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 Lost River | View |
|---|---|---|---|
| KSFX Pocatello, ID | 62 mi southeast | 4,800 ft | Good — most storms and steady rain or snow show clearly |
| KCBX Boise, ID | 131 mi west | 14,600 ft | Limited — the beam overshoots the lowest part of storms |
| KMTX Salt Lake City, UT | 178 mi south-southeast | 24,100 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 Lost River
Since 1950, NOAA has recorded 6 tornadoes within 25 miles of Lost River. Most came in July and May. The strongest was an F1 on July 18, 1987, which touched down about 16 miles south-southeast of town. The most recent was an EF0 on June 21, 2018, which passed about 15 miles north-northeast of town.
Hail: 12 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.75-inch hail on August 14, 1979.
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 Lost River'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.
Lost River radar FAQ
Where is the nearest weather radar to Lost River, ID?
KSFX (Pocatello, ID), about 62 miles southeast. KCBX (Boise, ID) is 131 miles away and also covers the area.
Does radar show snow in Lost River?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Lost River the lowest scan from KSFX is about 4,800 ft up.
Is TALON's radar for Lost River 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 Lost River, follow it right away — see watch vs. warning.
Radar for nearby towns
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