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Hottest Weather So Far to Elevate California Fire Risk

The hottest weather of the year so far will push the wildfire threat to critical levels this week in much of California.

Temperatures will flirt with 100 degrees on multiple days over the San Joaquin Valley with areas over the Inland Empire frequently reaching the century mark this week.

Record high temperatures will be challenged and broken in California in many major cities including San Francisco, Sacramento, Redding, Fresno, Riverside, Long Beach, San Jose, San Bernardino, Los Angeles and San Diego.

For some locations, the hottest day will be Wednesday and for others, depending on local atmospheric conditions, the hottest day of the heat wave will be Thursday.

Forecast Highs on Hottest Day of the Week

Location
Forecast High (Fahrenheit)
Fresno
104
Sacramento
97
Riverside
101
San Bernardino
101
San Francisco
89
Los Angeles
100
San Diego
94
Redding
97
San Jose
95

According to Western Weather Expert Ken Clark, "Stiff north to northeast winds in many areas will average 15 to 30 mph, with locally higher gusts in canyons aligned to the northeast and north."

The combination of dry brush, low humidity, winds, sunshine and heat will push the wildfire danger to critical levels this week. The windiest conditions will occur through Tuesday but problems associated with the wind can continue into Wednesday.

The Bernardo Wildfire forced the evacuation of more than 20,000 homes in San Diego on Tuesday, but that evacuation order has since been lifted.

The heat is forecast to ease this coming weekend into the following week, but more episodes of extreme heat with building drought are projected to continue well through the summer.

According to AccuWeather Long Range Expert Paul Pastelok, "The persistence of the pattern will lead to major problems for water resources for consumers and agriculture during the middle and latter part of the summer."

Pastelok expects drought and episodes of heat to build into the Northwest.

One such spell of heat will occur during the middle of this week with highs forecast to be well into the 80s around Portland, Oregon. Temperatures will reach the 80-degree mark around Seattle.

Remember to drink plenty of non-alcoholic fluids during the hot weather. If you must work during the hottest part of the day, during the midday and afternoon hours, be sure to take frequent breaks to rehydrate.

People are urged to be extremely careful with any sort of outdoor flames and power equipment. Never park your vehicle on high brush. The hot exhaust system can ignite that brush in minutes. Do not throw burning cigarettes outside of your vehicle.