Large Natural Avalanche on Marmot crossed the road at mile 15.5 near Archangel at 8:30 am this morning.
11″ of new snow has rapidly fallen overnight. It has been snowing 2″/hr for the past 4 hours. More snow and wind are expected today.
Very dangerous conditions. Travel in avalanche terrain NOT recommended. Natural avalanches are likely, human triggered very likely. Expect large avalanches in many areas or large avalanches in specific areas.
The road will be CLOSED. Please let DOT and Avalanche Forecasters do their work. Do not attempt to drive up the road or ski up the road run. The road run is in the RUNOUT of avalanche danger.
Above 3,500ft High
2,500 to 3,500ft High
Below 2,500ft High
Degrees of Avalanche Danger ?
An avalanche has crossed the Willow-Fishhook Road at mile 15.5 and the road is being closed.
Travel in avalanche terrain is not recommended. New snow has overloaded the snowpack and avalanches are likely today.
For more information and pictures, see OBSERVATIONS HERE.
Recent Avalanche Activity
1.Arkose Ridge- W/NW 4000′ SS-N-D2.5-O
2.Marmot Mid Rib- half way down SE 3600′ SS-N-D1-S
3.Several wet-loose sluffs were observed at low elevation along the roadway on the drive down Friday night.
Check out the photos below. The first one went naturally last week 3/9. The second photo (lookers right of this avalanche) went naturally 3/15 or 3/16. The same problem lingers.
This week’s weather at 3550′:
Temps averaged 22ºF, with a low of 15ºF and a high of 34ºF.
IM reported about 14″ of new snow between 3/14 and 3/16 with 1.3″ of water (SWE).
Overnight at 3550′:
Temps averaged 27° F.
No new snow overnight.
This week’s weather at 4500′:
Temps averaged 19ºF, with a low of 12ºF and a high of 30ºF.
Winds averaged ESE 5 mph, max ESE 16 mph . Gusts averaged ESE 10 mph, max gusts SE 25 mph.
Overnight at 4500′:
Temps averaged 22ºF overnight.
Winds averaged SSW 3 mph overnight, with a max gust SSW 5 mph.
NWS recreational forecast for Hatcher Pass here
NWS point forecast here
State Parks snow report here
Additional Info & Media
Expect the avalanche hazard to remain HIGH today and Tuesday.
100% chance of precipitation today with another 6-9″ of snow possible.
Winds 8-23 G35 mph. Snow intensity decreasing throughout the day.