Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

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Last Map Update: Tue, Mar 17, 2026 at 7:42:40 pm PDT

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

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National Weather Service Los Angeles, CA

Extreme Heat Warning

Heat Advisory

Central California Midweek Heat Risk

Cold Water Safety

Widespread Minor Heat Risk is expected for central California including the San Joaquin Valley and Mojave Desert on Wednesday and Thursday. This level of risk can result in heat-related illnesses for those extremely sensitive to heat such as older adults (65+), infants, those without effective cooling, and those with chronic diseases.

Streams and waterways will be rising and running cold and fast this week! As the temperatures become hotter this week, waterways may be inviting. However, the water will flow dangerously fast and cold. It is recommended to stay out of these waterways and streams, as this will cause adverse impacts to even the most experienced swimmers. Also heed instructions from law enforcement.

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Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

NWS Forecast Office Hanford, CA