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    Lassen Volcanic

    National Park California

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Got Lassen Peak Weather??

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Date: November 15, 2003
Contact: Lassen Volcanic National Park Information Desk, (530) 595-4444

For years you've been asking us for Lassen Peak weather. Well, now we've got it!

Until this year, collection of weather data in the Lassen Peak area was hampered by the fact that winter-time remoteness (up to fifty feet of snow, steep terrain, and narly weather make the spot accessible only by ski or helicopter) allowed volunteer ski patrols to collect data once a week at best when weather was mild. Conditions permitting, PG&E would also fly in once a month to determine snowpack and water content at the Lake Helen snow course.

This summer, National Park Service compliance and management teams worked with PG&E to find an appropriately low-impact and inconspicuous design and location for a new array of automated snow and weather sensors. The Lake Helen array now collects a variety of weather data that you can view 24 hours a day by going to the California Department of Water Resources' web site.

Lower Lassen Peak Station (LLP), Lake Helen, 8250' http://cdec.water.ca.gov/cgi-progs/staMeta?station_id=LLP Wind speed sensors are not yet working properly, so don't be surprised if you get some outrageous figures...

Upper Lassen Peak (ULP), Park Road Summit, 8500' http://cdec.water.ca.gov/cgi-progs/staMeta?station_id=ULP

Park Headquarters Station (MIN), Mineral, 4957' http://cdec.water.ca.gov/cgi-progs/staMeta?station_id=MIN

Manzanita Lake Stations, 5750'-6000' For satellite data: http://cdec.water.ca.gov/cgi-progs/staMeta?station_id=MNZ 
For manual data collected by the NPS from 1950-present: http://cdec.water.ca.gov/cgi-progs/staMeta?station_id=NMN 
For manual data collected by the NPS from 1936-1953: http://cdec.water.ca.gov/cgi-progs/staMeta?station_id=OMN

Did You Know?

View of devastated area from Main Park Road.

The 29 mile Main Park Road was constructed between 1925 and 1931, just 10 years after Lassen Peak erupted. Near Lassen Peak the road reaches 8512 feet, making it the highest road in the Cascade Mountains. It is not unusual for 40 feet of snow to accumulate on the road near Lake Helen.