Above 2,500ft High
1,500 to 2,500ft High
Below 1,500ft Considerable
Degrees of Avalanche Danger ?
Today’s storm snow is upside-down. Weak snow from yesterday is holding up the dense, wet snow piling up today. Natural and human-triggered avalanches are likely within the new snow and at the new/old snow interface, which is quite hard and icy in most places. Storm slabs will be 30-60cm thick, possibly more on wind loaded north aspects. Avalanche terrain should be avoided today. Be careful in steep open trees as well. Slab avalanches will still be likely in areas of sparse trees. Be mindful of terrain traps where a slide can pile up deep.
Recent Avalanche Activity
The last reported avalanche activity occurred during the last storm cycle, about a week ago. Size 2 and 3 avalanches within the new storm snow were common on all aspects in all zones. A few slides to size 4 occurred.
A strong storm hits Saturday, with heavy snowfall rates 2-4″/hr. Snow levels will be rising to around 1200 ft before falling again Sunday. 12-24″ of accumulation expected above 1200ft. Winds are strong out of the south.
Friday brought 4-10″ of dry, cold, low-density snow and light winds. Temperatures rose fast early Saturday morning, from around 12F to around 25F in the alpine.
It was mostly clear with light-moderate north winds since the 1st. Alpine temperatures were steady between 10-25F.
Additional Info & Media
2017 New Year’s resolution – develop backcountry habits to LIVE TO RIDE ANOTHER DAY:
- everyone in my riding group has a functioning beacon, probe, and shovel (& floatpack)
- my group chooses to avoid slopes with rocky trigger points
- my group chooses to avoid slopes with terrain traps; cliffs, gullies, and creek ravines
- my group agrees that one rider on a steep slope at a time is what we do
- my group gathers out of harm’s way, beyond the run-out
- my group reviews our day – where could we have triggered a slide? how can we improve our plan?