ALT Excessive Heat Warnings will be in effect Monday afternoon through Wednesday Evening for the East Bay Hills and Interior Valleys, Eastern Santa Clara Hills, Santa Lucia Mountains and Los Padres National Forest, Mountains of San Benito, and Interior Monterey County including Pinnacles National Park. Expect Dangerously hot conditions with daytime temperatures reaching the upper 90s to lower 100s. Far inland temperatures may reach 108 degrees. Overnight temperatures will be warm and in the 60s and 70s. Heat Advisories have been issued Monday afternoon through Wednesday evening for interior portions of the North Bay, South Bay, Santa Cruz Mountains, and Southern Salinas Valley with daytime temperatures reaching the 90s to near 100. Overnight temperatures will be mild and in the upper 50s to near 70.

ALT Graphic showing heat advisories and excessive heat warnings: Excessive Heat Warning: mid 90s to 110s now through 8 PM Friday for interior Monterey and San Benito Co, North Bay Interior Mountains, East Bay Interior Valleys and Hills, Santa Clara Valley, including San Jose, and Eastern Santa Clara Hills. Heat Advisory: Now through 8 PM Friday with temperatures expected in the 80s to mid 90s.

ALT Watch Duty map showing wildfires across portions of California and Nevada.

ALT An Excessive Heat Warning with temperatures in the upper 90’s to 110°, and a Heat Advisory with temperatures in the lower 80’s to mid 90’s have been issued from 11 AM Tuesday through 8 PM Saturday for areas of the Bay Area and Central Coast away from the immediate coastline. Temperatures will remain cooler near the coast with continued onshore flow. In addition, limited overnight cooling is expected for areas away from the immediate coast and in higher terrain. Never leave people or pets in vehicles! Limit outdoor activities during the afternoon and evening. Stay hydrated and take cooling breaks.

ALT Red Flag Warnings will be in effect for the North Bay Interior Mountains, Marin and Sonoma Coastal Ranges, and East Bay Hills. A Red Flag Warning will be in effect from 11PM Monday to 11PM Tuesday for the Marin and Sonoma Coastal Ranges and East Bay Hills. A Red Flag Warning will remain in effect from 11PM Monday to 5PM Wednesday across the North Bay Interior Mountains. Exercise fire safety precautions to prevent fires, and have an emergency plan in case a fire starts near you!

ALT Protect yourself from heat and sun. Drink plenty of water and avoid alcohol. Beverages with electrolytes can also help protect against heat stress. Apply sunscreen, SPF 30 or higher, every two hours. Wear lightweight, loose-fitting, and light-colored clothing. Take regular breaks in the shade.

ALT Everyday Wildfire Prevention. Most wildfires are caused by humans - many everyday things can create sparks. Keep ignition sources far away from dry vegetation, wood, and other fuel. Have a clear 10 foot radius around campfires, burning brush, etc. Never leave fires unattended, and always properly extinguish. Use grills and smokers on gravel or paved surfaces. Never toss lit cigarettes on the ground. Put ashes in a metal container with a tight lid. Keep water stored near campfires, fire pits, grills, smokers, burning brush, etc. Maintain vehicle brakes & tires, and secure tow chains to avoid dragging. Don't drive on dry grass or brush. Water your lawn and keep grass cut. Mow lawn early in the morning and when it's not windy or excessively dry. Always follow burn bans and regulations. Be aware of weather conditions. Low humidity, heat, drought and winds are conducive to fires.