Mount Etna· North Sierra· conditions updating now
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Mount Etna

Peak · 7,007 ft · North Sierra corridor

Mount Etna is a 7,007-foot peak in California's North Sierra corridor, sitting above the lake country east of Highway 395. Wind-exposed and snow-laden in winter, it offers alpine climbing and scrambling on a shorter approach than many regional summits.

Today
15
NoGo Score · Go · excellent
Temp
40°F
Wind
19 mph
Vis
26 mi
Precip
0.00"
AQI
15
Cloud
0%

Mount Etna faces persistent afternoon winds funneling off lower elevations to the west. Morning calm windows close by mid-day; wind typically ranges 8 to 16 mph by afternoon. The peak is markedly colder and snowier than the foothill towns below, and afternoon thermals and drainage winds compound exposure.

Over the last 30 days, Mount Etna has averaged a NoGo Score of 35.0 with an average wind of 8 mph and temperatures near 41 degrees Fahrenheit. The week ahead will show whether spring snowpack destabilization and afternoon wind ramps match the season's trend or break colder. Watch the rolling forecast for wind direction shifts and avalanche advisories from the Sierra Avalanche Center.

30 days back / 7 days forward

NoGo Score
avg 11 · today 11
NoGo Score trend for Mount Etna: 30-day average 11, range 10 to 14; 6 days of forecastLine chart showing nogo score over 31 historical days and 6 days of forecast.
30-day average 11 (excellent); range 10 on Sep 28 to 14 on Sep 26. 7-day forecast trends in line with the historical average.
Wind
avg 10 · today 11mph
Wind speed trend for Mount Etna: 30-day average 10 mph, peak 15 mph on Oct 10Line chart showing wind over 31 historical days and 6 days of forecast.
30-day average 10 mph; peak 15 mph on Oct 10. Week ahead peaks at 10 mph on Oct 16.
Temperature
avg 61 · today 51°F
Temperature trend for Mount Etna: 30-day average 61°F, range 47 to 71°FLine chart showing temperature over 31 historical days and 6 days of forecast.
30-day average 61°F; range 47 (Oct 12) to 71 (Oct 7). Trending cooler.
Crowding
avg 5 · today 3
Crowding trend for Mount Etna: typically quietLine chart showing crowding over 31 historical days and 6 days of forecast.
Typically quiet (avg 5); peak 11 on Sep 26.

Today's score by factor

Weather23
Crowding9
Avalanche10
Fire0
Traffic—
Air quality3
Trails15
Seasonality17

About Mount Etna

Mount Etna rises from the high-Sierra plateau east of the Lassen volcanic field, sitting in the North Sierra corridor roughly 80 miles northeast of Chico and 40 miles south of Modoc County. The peak is accessed via Highway 395, with the town of Chester serving as the nearest resupply point. The standard approach follows forest roads and ridgelines from the east; winter and spring require careful snowpack assessment and avalanche terrain awareness. Early-season parties should consult the Sierra Avalanche Center for slope stability before committing.

Conditions at Mount Etna are governed by elevation and exposure. Winter and early spring bring sustained snowpack, temperatures ranging from a 30-year minimum of 29 degrees Fahrenheit to a summer maximum of 56 degrees, and wind that frequently peaks at 16 mph. The 30-day average wind of 8 mph understates afternoon gusts; calm is fleeting in late morning, and afternoon thermals and valley drafts funnel upslope by noon. The peak is colder and windier than the lake basins immediately below, and often sits in clouds when lower elevations are clear.

Mount Etna suits experienced mountaineers and scramblers comfortable with route-finding on loose terrain and snow travel. The peak sees moderate traffic in late summer and early fall when snow is gone and afternoon winds are less violent. Winter ascents demand winter-climbing gear, avalanche awareness, and the discipline to turn back if conditions destabilize. Parties attempting the peak in spring should be prepared for steep snowfields, corniced ridges, and sustained wind. Solo travel is common but exposes one to swift weather changes and longer self-rescue windows.

The North Sierra corridor includes several adjacent peaks and lake basins within a half-hour drive; Mount Lassen to the north and the Caribou Wilderness to the south offer varied climbing and backpacking options. Mount Etna's compact elevation gain and direct approach appeal to visitors seeking a single-day high-country objective rather than a multi-day expedition. Crowding is minimal year-round; the rolling 30-day average crowding score of 5.0 reflects the peak's remoteness and the commitment required to reach it.

Best times to visit Mount Etna

Best day
Tuesday to Wednesday early morning
Best season
Late August to mid-September
Watch for
Afternoon wind above 12 mph and avalanche terrain in snowpack

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