Alerts & Conditions

Alerts

 

Current Conditions

Last updated: 4/6/2024 | You may need to reload page to see updates.

The Conditions Summary section below includes current information about about seasonal conditions, closures, fire and air quality, and other current information.

• The park is open year round, however vehicle access is limited to the main park entrances thorughout the snow season (generally November through April).
• Reservations are not required or accepted to enter Lassen Volcanic.
  • You may enter the park at any time, 24 hours a day. A 7-day or annual pass is required to enter; and may be purchased online.

 

Visitor Centers

Visitor Center	Information and Conditions	Current Status
Kohm Yah-mah-nee Visitor Center	*Open Wednesday-Sunday 9:30 am to 4:30 pm. Lassen Association Park Store is Open Wednesday-Sunday 9:30 am - 4:30 pm. Lassen Cafe & Gift Shop is Open Friday-Sunday 9:30 am - 4:30 pm. *Extreme weather conditions may limit hours. See Alerts above for current information.	OPEN
Loomis Musuem	Loomis Museum is closed until May 24, 2024. Manzanita Lake Camper Store and Gas Pump are closed until May 23, 2024. Lassen Association Park Store in the Loomis Residence is open Friday-Sunday 10:00 am-4:00 pm.	CLOSED

 

Weather, Webcams & Snow Depths

Snow depths are updated when there is a significant change. Learn more about Lassen's snowpack and snowpack surveys.
There are no regular patrols into the interior of the park in the winter; information is provided only for the Manzanita Lake and Southwest Areas.

Last updated - April 6, 2024

Weather Forecast	Webcam	Approximate Snow Depth (Nov - Apr)
Manzanita Lake 5,900 feet	Offline indefinitely	~12 inches (1 feet) of snow. View oversnow route conditions
Southwest Entrance 6,700 feet	Facing north from back of Kohm Yah-mah-nee Visitor Center CURRENTLY OFFLINE	~120 inches (10 feet) of snow. View oversnow route conditions
Lassen Peak 8,250 feet		Daily sensor measurements Monthly manual measurements (Jan - Apr).
Northern California Area	View area webcams

California Cooperative Snow Surveys

Learn about Lassen's Snowpack

Surveys typically take place around the start of every month, January through May or June.

View statewide survey information inlcluding two survey locations in the park.

Lower Lassen Peak (LLP) | Lake Helen 8200 feet elevation | Feather River Basin

April Survey
Date - March 24
Snow Depth - 193 inches/16 feet
Water content - 91 inches/7.6 feet
Density (water to snow ratio) - 47%
April 1 average for water content - 115%


New Manzanita Lake (MNZ) | Manzanita Lake 5900 feet elevation | Pit River Basin

April Survey
Date - March 29
Snow Depth - 31.5 inches
Water Content - 11.4 inches
Density (water to snow ratio) - 36%
April 1 average for water content - 142%

 

Status of Roads in the Park

Lassen Volcanic National Park Highway and other park roads close to vehicle access during the winter snow season, typically November through May.

Refresh your browser (hit F5) to view the most recent information.

Road Section	Information and Conditions	Current Status
Lassen National Park Highway	Lassen National Park Highway closes seasonally to vehicle access through the park upon substantial snow accumulation. The connecting 28 miles is closed to vehicles due to snow and ice, but open for skiing and snowshoeing. Vehicles can drive to the Southwest Entrance via Highway 36. Vehicles can drive up to the Kohm Yah-mah-nee Visitor Center parking lot. Vehicles can drive to the Northwest Entrance via Highway 44. Vehicles can drive up to the Loomis Plaza parking lot.	CLOSED
Butte Lake Road	Plowed to one lane. Muddy conditions on road. Travel at your own risk.	PLOWED
Warner Valley Road	Road is not recommended for RVs, trailers, and low clearance vehicles. The 17-mile-long remote road begins off of Hwy 36 in Chester. The last 3-mile section is unpaved/dirt.	CLOSED
Juniper Lake Road	Recommended only for high-clearance vehicles. Road is generally not advised for RVs, trailers or vehicles with very low clearance.This remote road travels north from Chester (Hwy 36E). It is paved for the first 6 miles. The remaining 7 miles are rough gravel and rock. A section of the county road just before the park boundary has large rocks and hazards.	CLOSED

 

Roads to the Park

Check conditions for area roads (map of the area) on the CalTrans QuickMap or Highway Conditions lookup page; or view current conditions on CalTrans webcams. The park does not determine chain control restrictions - this is determined by CalTrans. Please go to the CalTrans website for area chain control information.

State Route (SR) 44/89 provides access to the Northwest Entrance/Manzanita Lake Area
State Route (SR) 36/89 provides access to the Southwest Entrance / Kohm Yah-mah-nee Visitor Center

Winter Closure Map

 

Winter Closure Map 2023/2024

NPS

 

Area Map of Lassen Volcanic National Park

 

More Information

• 

  Spring Road Clearing Operations

  Road Clearing is taking place! Learn more about operations and find historic road closing and opening information.

• 

  Check Trail Conditions

  Trails throughout the park vary from short and easy hikes to multiple miles in the backcountry. Check for closures or snow coverage.

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  View Operating Dates and Hours

  View dates and hours for facilities including visitor centers, campgrounds, stores, and services.