Page 38 - Slopeangel avalanch essentials
P. 38
Compact snow
Danger! Crevasses
Gully
Steep
Compact snow
Avalanche
38
Terrain – Slope Shape
Make use of terrain shapes to ensure the best route:
• Rib – snowdrifts don’t often accumulate here as the snow
snow
gets blown off • Road Ridges – also difficult for for snowdrifts to to form due to to wind • Humps – the snowpack here is supported by small slope shapes Avoid certain areas to ensure the best route:
• • • Steep
Slopes – a a a a a a a a a a a riskier avalanche areas also maintain appropriately safe distances Bowls and gullies – snowdrifts can easily accumulate here making it a a a riskier area Cornices – prone to breaking off unpredictably Snowdrifts can also accumulate on
the the leeward side underneath the the cornice Moraine warning
mostly steeper than 40°
Cornice
