Mount St. Helens - Worm Flows Route
South Cascades
As of May 11, 2026, the Worm Flows Route on Mount St. Helens is experiencing warm conditions with significant snowmelt. Reports from May 9th indicate the lower boulder field and forest are snow-free and hot, with patchy snow beginning around 5,500 ft. Crampons were used by some on the ascent on May 9th, but plunge stepping was effective where not glissading.
Travelers on May 3rd noted increased snow fissures and exposed rocks, suggesting caution over these areas. Glissading paths are present but may have exposed rocks. Road access to Marble Mountain Sno-Park is clear, but the final stretch to Climbers Bivouac may require parking further away due to snow according to a March 27th report. Be prepared for hot conditions and intense sun, with sun protection being essential.
generated from 37 reports
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We did this as our first “real” mountain — family of four with two teenage boys. We had expected light rain overnight and into the morning and were mentally and gear‑wise prepared for that, but the da...
Back for round 2 today. Compared to last weekend things have changed with the thaw-freeze cycles. Now there are multiple snow fissures with various depths. It would be wise to avoid walking directly o...
St Helens via worm flows, started around 4am, and finished just after 2, with a small 1/2 hour detour to climb up one of the lava bolder piles. 11.1 miles and 5700 ft on my gamin round trip. Easy goin...
Started the hike at 0400, no snow for the first 2 miles (approx.). Trail is in good condition. Crampons and ice axe were needed for early morning ice to summit. By 1000 the sun was melting the snow ra...
Great day, no snow in the lot at the trailhead and views were clear on the way up. Snow still present and an ice axe for the descent would be my recommendation, but the pack was soft enough that you c...
Beautiful day on St Helens. Started from the lot around 5:45am, back to car at 4pm, good pace including breaks every hour. Not a lot of snow on the first two miles. Snow over on the ridge is very hot ...
There’s already a report from Saturday but will second the beautiful day - very lucky with clear, sunny weather yet pretty stable snow. Knowing it was thunderstorms and heavy snow just days before mad...
Mt. St. Helens: Trip Report Worm Flows Route | April 11, 2026Four of us, bound by schedules, climbed St. Helens via the Worm Flows route. After five days of beautiful forecasts, our Saturday forecast ...
Made it to the summit on Sunday morning April 5th. On the way down, just past the square Seismic box, I was glissading and lost my black iPhone 14 Pro. Unfortunately it has all my summit photos on it....
Drove into Marble Mountain Sno-Park Thursday (3/26) evening. The road to Marble Mountain was completely clear but we heard from people coming up from Climbers Bivouac that they had to park further fro...
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