January 14, 2018 update
The road to Climber's Bivouac is CLOSED. The winter climbing route (Worm Flows) out of Marble Mountain Sno Park is the preferred climbing route for winter and spring. A Sno Park Pass is required to park at Marble Mountain Sno Park between November and April and can be purchased online, at local vendors, or Forest Service office. Sno Park passes cannot be purchased at trail heads. Dispersed camping is available around the Marble Mountain parking lot. There are pit toilets available, but no running water or trash service. Please plan accordingly.
The road to Marble Mountain is plowed, and the parking lot is clear with snow patches 1-2 ft deep in the woods up to Chocolate Falls. Between Chocolate Falls and Treeline (3,700' - 4,800') there is 2 ft of snow, hard ice in the morning, softer in the afternoon. Spring-like conditions over the weekend made for soft snow with significant danger of post-holing near the boulders. Ice is present farther up the route. Preferable gear includes crampons for higher elevations. An ice axe and trekking poles with wide baskets are also recommended. Be prepared for high winds that bring varying amounts of precipitation. The summit does have a cornice 8-10' wide, please stay back from the edge! If you can see into the crater, you are too close, and cornice may collapse.
Please check the forecast as weather conditions as mountain conditions can change rapidly.
This conditions report is provided in conjunction with the US Forest Service, and is intended for personal and recreational purposes only. Safe backcountry travel requires preparation and planning, and this information may be used for planning purposes but does not provide all the information necessary for backcountry travel. Advanced mountaineering education is strongly encouraged for winter climbing.
The user acknowledges that it is impossible to accurately predict natural events in every instance, and the accuracy or reliability of the information provided here is not guaranteed in any way. This report describes general conditions and local variations will always occur. This report expires 24 hours after the posted time unless noted otherwise.
See the U.S. Forest Service Mount St. Helens National Volcanic Monument website for more information.
FIRE: Incident Information System has the most up to date info on all fires (prescribed or wild) around the country. Visit Washington Smoke Information and AirNow for the latest in Air Quality and forecasting.
WEATHER: Weather.gov point forecasts- Marble Mountain SnoPark (2,700ft) and mid-slope (6,200ft). Mountain-Forecast.com provides forecasts at three different elevations: summit 8,328ft, mid-slope 6,500ft and just above the trailhead 3,200ft.
AVALANCHE: Visit the Northwest Weather and Avalanche Center for the most up to date avalanche forecast information.