Risk Level
High
Score
53%
Avy Terrain
Yes
Avalanche Risk Assessment
High
Avoid this terrain
Risk Score
53%
Avy Terrain
Yes
This is an educational tool only. Always check your local avalanche center forecast, carry rescue equipment, and travel with experienced partners.
Inputs
Result
Slope 5 + Danger 3 + Aspect 1 + No trap 0 + Snow 1 + No wind 0 = 10/20 = 50%.
Inputs
Result
Prime slope + High danger + Cliff trap + Heavy snow = Extreme. Avoid this terrain.
Slopes between 30° and 50° are avalanche terrain, with 35–45° being the prime zone where most avalanches occur. Below 25° and above 55°, avalanches are rare.
| Angle | Risk Level | Terrain | Activity |
|---|---|---|---|
| 25–30° | Low-Moderate | Gentle bowls | Ski touring |
| 35–45° | Highest | Classic chutes | Backcountry skiing |
| 45–55° | High | Steep faces | Mountaineering |
North-facing slopes hold cold, unstable snow longer and are more prone to persistent weak layers. South-facing slopes warm faster, which can trigger wet slides in spring.
Terrain traps are features that increase burial depth or trauma if caught in an avalanche. Cliffs below, gullies, and trees all multiply the consequences of even a small slide.
No. This is an educational awareness tool only. Always check your local avalanche center forecast, take an avalanche safety course, and carry rescue equipment.
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Last Updated: Mar 21, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.