Above 2,500ft Considerable
1,500 to 2,500ft Considerable
Below 1,500ft Moderate
Degrees of Avalanche Danger ?
New precipitation will be less today, but still adding a significant load to the snowpack as it settles and adjusts to days of heavy snowfall. Recent storm snow is a solid meter thick, and up to 2 meters in wind loaded areas. The new snow is saturated from rainfall on Monday and extremely heavy…like concrete. The snow pack is going to need a few days of cooling before it starts to set up.
All 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
30-40cm deep storm-slab avalanches were widespread Saturday, and shooting cracks and whumphing common on Sunday. Monday-Tuesday’s rain caused natural wet slides in most steep areas below 4000ft.
Wednesday will finally bring an end to the storm. Winds have already dropped off and precipitation will taper off today. Clouds will begin to clear out Thursday. Some light snow is likely Friday-Saturday before more clearing on Sunday. Temperatures will be 20-30F.
Snow levels Tuesday were around 2000ft. 1-2″ of additional water equivalent added up over the mountains.
Monday brought snow levels to 4000ft with 2″ of additional water equivalent.
A very strong storm hit Saturday, with extremely heavy snowfall rates that reached 5″/hr. Total snowfall over the mountains was around 3 feet. South winds were strong. Snow levels were near sea level.
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.
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?