Severe Thunderstorm Threat From the Central Plains to the Northeast; Extreme HeatRisk for the East Coast

Strong to severe thunderstorms are possible from the central Plains to the Northeast through this evening. Widespread damaging winds are the primary threat but hail and a tornado or two is also possible. Extremely dangerous heat continues across the Eastern U.S. Warm overnight low temperatures will provide little to no relief. Read More >

Click a location below for detailed forecast.

Last Map Update: Wed, Jul 17, 2024 at 5:38:20 am PDT

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

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National Weather Service Los Angeles, CA

Small Craft Advisory

Excessive Heat Watch

Consecutive Days Above 105 Degrees

Moderate Heat Risk This Week

Confidence Increasing for Heat Wave Next Week

Moderate Risk - 40% Probability of Extreme Heat

Cold Water Safety

Both Hanford and Fresno recorded temperatures today below 105°, ending their streaks at 13 consecutive days at or above these temperatures. This ranks as Hanford's longest streak of temperatures at or above 105°, and ranks as Fresno's second longest, behind 14 in 1988. Over the weekend, Madera ended its streak at 10 days, ranking 3rd all-time, and Bakersfield ended its streak at 11 days, ranking 7th. Merced ended the streak of 105 or above last week at 6 days, which is the 8th longest streak. Hanford, Fresno, Bakersfield, and Madera are continuing their streaks of consecutive days above 100°. However, with Merced recording 99° this afternoon, the streak ends at 14, setting the 5th longest all time.

This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries.

The cooler temperature is the best case scenario whereas the hottest temperature is the worst case scenario, for Tuesday July 23rd. There is a 90% Probability that High Temperatures will meet or exceed 106F at Bakersfield and 104F at Fresno.

Confidence is increasing regarding another heat wave affecting our region next week.

Warm air temperatures do not mean warm water temperatures. Cold water can very quickly remove heat from the body and lead to a loss of movement in the limbs. When heading into rivers and streams, always take precautions such as wearing a life vest, bringing a life preserver with you, and following all river/stream closures.