PeakScout aggregates Montana avalanche forecast data from three regional avalanche centers:
Forecasts are fetched from the avalanche.org v2 API and cached for up to 8 hours. During cache windows, the displayed forecast may be up to 8 hours old. Stale forecasts are labeled in the UI. Significant weather events can change conditions faster than the cache interval — always verify directly with the issuing center before travel.
Regional avalanche forecasts cover broad geographic zones — not individual trails, peaks, or drainages. Danger can vary significantly within a single forecast zone based on aspect, elevation band, recent wind loading, solar radiation, and local terrain traps.
PeakScout's Mountain IQ™ trail scores for Montana incorporate:
When avalanche danger is rated Considerable (3), High (4), or Extreme (5) for any elevation band on a given trail, PeakScout displays a prominent danger badge regardless of the IQ score. Do not proceed into avalanche terrain with any of these ratings without expert avalanche training and current local snowpack knowledge.
| Level | Rating | Likelihood | Travel Advice |
|---|---|---|---|
| 1 — Low | Low | Natural avalanches very unlikely; human-triggered unlikely | Generally safe; use normal backcountry caution |
| 2 — Moderate | Moderate | Natural avalanches unlikely; human-triggered possible on steep slopes | Use caution on steep slopes >35°; avoid terrain traps |
| 3 — Considerable | Considerable | Human-triggered avalanches likely on steep terrain; natural possible | Be conservative; avoid avalanche terrain unless expert trained |
| 4 — High | High | Natural and human-triggered avalanches likely on many slopes | Travel in avalanche terrain not recommended |
| 5 — Extreme | Extreme | Large natural avalanches certain; very large avalanches likely | Avoid all avalanche terrain; stay off slopes entirely |
Source: American Avalanche Association / North American Avalanche Danger Scale.
Montana's avalanche terrain presents unique characteristics that increase complexity beyond typical forecast interpretations:
Montana law (MCA § 27-1-736) provides that landowners (including the State of Montana, USFS, NPS, and BLM) who permit recreational use of their land without a charge do not assume responsibility for injuries or property damage arising from the inherent risks of the recreational activity. Avalanche hazard is an inherent risk of backcountry skiing, ski mountaineering, snowshoeing in avalanche terrain, and other winter backcountry activities.
By using PeakScout's Montana avalanche data features, you acknowledge that PeakScout provides aggregated forecast data as an informational aid only. PeakScout is not the forecast issuer, has no field observers in Montana, and makes no representation that displayed data reflects current conditions at your specific location.
Montana may assess search and rescue costs against individuals who are negligent in creating the need for rescue. Entering avalanche terrain at Considerable (3) or higher danger ratings without appropriate training, equipment, and planning may be considered negligent. PeakScout's forecast display does not constitute a recommendation to enter avalanche terrain at any danger level.