Happy climbers and skiers at the summit rim, April 23

Photo by Ron Benton

April 23, 2018 update

Sunrise: 6:06 am

Sunset: 8:07 pm

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. After March 31st, a Sno Park Pass is not required to park at Marble Mountain Sno Park. 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 with some snow and ice on the road, and the parking lot is mostly clear with thinning snow in the woods up to Chocolate Falls. Between Chocolate Falls and Treeline (3,700' - 4,800') there is 10-12 ft of snow, with a thick layer of soft snow present all along the route. Snowshoes would help travel in areas of thick or soft snow. Icy conditions may exist at higher elevations. Be prepared for high winds that bring varying amounts of precipitation. The summit does have a cornice 10-20' overhanging, please stay back from the edge! If you can see into the crater, you are too close, and cornice may collapse. Beware of post-holing through snow bridges on the way down, when snow becomes soft in the afternoon. Snowshoes help to mitigate risk. High temps in the next week means loose, wet snow. Be aware of avalanche terrain and familiarize yourself with avalanche danger.

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: point forecasts- Marble Mountain SnoPark (2,700ft) and mid-slope (6,200ft) 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.

SNOWPACK: Visit these SNOTEL sites for recent snow pack readings on the south side of Mount St. Helens- June Lake (3,400ft) and Swift Creek (4,400ft).


Have a more recent report? We would love to hear from you! Email your conditions update to, photos welcome.