Active AlertsLassen-Eastern Plumas-Eastern Sierra Counties

What: For the Heat Advisory and the Extreme Heat Watch, lower valley highs 95 to 102 degrees with overnight lows between 58 to 65 degrees. Widespread Moderate (level 2 out of 4) HeatRisk.
Where: Lassen-Eastern Plumas-Eastern Sierra Counties.
When: For the Heat Advisory, from 8 AM Wednesday to 8 AM PDT Thursday. For the Extreme Heat Watch, from Thursday morning through Sunday morning.
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.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.