Lassen National Forest
Heat Advisory issued August 9 at 12:24AM PDT until August 9 at 10:00PM PDT by NWS Sacramento CA
* WHAT...High temperatures of 101 to 107 and low temperatures of 65 to 80 expected, with Moderate to Major HeatRisk. * WHERE...The Sacramento and San Joaquin Valleys, Foothills, Coast Range, and Sierra north of Highway 50. * WHEN...Until 10 PM PDT this evening. * IMPACTS...ot temperatures may cause heat illnesses, especially anyone without effective cooling and/or adequate hydration. * ADDITIONAL DETAILS...Hot temperatures continue today, with areas of Major HeatRisk. Hottest temperatures and warmest overnight lows expected in the northern Sacramento Valley and Sierra foothills thermal belts.
Heat Advisory issued August 8 at 11:53PM PDT until August 10 at 8:00AM PDT by NWS Reno NV
* WHAT...High temperatures of 97 to 102 degrees with overnight lows of 55 to 70 degrees. Widespread Moderate to Major HeatRisk. * WHERE...In California, Lassen-Eastern Plumas-Eastern Sierra Counties and Surprise Valley California. In Nevada, Northern Washoe County and Greater Reno-Carson City-Minden Area. * WHEN...Until 8 AM PDT Monday. * IMPACTS...Heat related illnesses will be more likely, especially for those spending extended periods outdoors, in poorly cooled indoor spaces, or who are sensitive to heat.
Overview
Lassen National Forest is a 1.2-million-acre forest spanning seven counties in northeastern California, where the Sierra Nevada meets the Cascade Range. The forest is currently open with several active restrictions. A reduced Park Fire closure area remains in effect through December 31, 2025 (Forest Order No. 06-24-08), though boundaries have been trimmed from the 2024 wildfire. Forest Order No. 06-24-01 limits the number of days and individuals camping on the forest. Additional restrictions apply at Lake Almanor Recreation Trail and the Lake Almanor Overnight Use Closure Area. Dispersed camping follows standard 14-day stay limits in a 30-day period. Campfire permits are required outside developed campsites, and fire restrictions may vary seasonally—always check current conditions before visiting. Prescribed fire operations are planned for fall/winter 2025. The forest offers extensive backcountry opportunities with mixed conifer forests, granite and volcanic terrain, and numerous wilderness areas.
Campgrounds
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