Severe Weather and Flooding Threats for the Central U.S.; Dangerous Heat in the Southern and Western U.S.

Severe weather and flooding threats will continue for portions of the central U.S. over the next couple of days, with multiple rounds of thunderstorms expected. Dangerous heat will persist across the southern and western U.S. through mid-week. Hot and dry conditions will fuel fire weather concerns for the Intermountain West, where dry thunderstorms may spark additional wildfires. Read More >

Click a location below for detailed forecast.

Last Map Update: Tue, Jun 23, 2026 at 3:30:13 pm PDT

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

Zoom Out

National Weather Service Los Angeles, CA

Red Flag Warning

Lake Wind Advisory

Beach Hazards Statement

Fire Weather Watch

Lake Wind Advisory for San Luis Reservoir

Moderate Heat Risk expected by Mid-Week

Elevated Fire Weather Concerns

Practice Heat Safety

Practice Water Safety

Tuesday, June 23rd, 2026, 4 PM - 1 AM: Sustained winds of 20-25 mph and gusts up to 30 mph will cause cresting, whitecap waves hazardous to small watercraft on San Luis Reservoir Tuesday afternoon and evening. Travel along CA-152 between Interstate 5 and Pacheco Pass will also be difficult for high-profile vehicles. Use extra caution if traveling to and recreating at San Luis Reservoir!

Temperatures across Central California expected to reach the Century Mark this week as 100 degree readings will be seen across the San Joaquin Valley. These temperatures will place the Heat Risk at Moderate Levels. At this level, heat-related illnesses to those sensitive to heat, such as older adults (65+), infants, athletes, outdoor workers, those without effective cooling, and those with chronic diseases will be elevated. Some risk to general population.

A disturbance expected to cross the Central California Interior will usher in cooler temperatures and strong winds. While this disturbance will lack moisture, the combination of dry air and strong winds will raise Fire Weather concerns across the windy-prone areas of Eastern Kern County. This means that any fire that develops will likely spread rapidly. Avoid outdoor burning later this week over the areas of concern.

Heat can be very taxing on the body and can lead to heat related illnesses or make existing health conditions worse. Everyone can be vulnerable to heat, but some more so than others. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Drink plenty of WATER.

If planning on heading out onto the water for some recreational boating or swimming this summer, you should both know the weather forecast before you leave, as well as check on the weather while you’re out. Boating on cold water is inherently very dangerous for the unprepared. You should know some information & facts about safe boating and swimming before you go out. Even in the summer, prolonged immersion in water temperatures below 70 degrees Fahrenheit can produce hypothermia. Always carry a life jacket.