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Fall in Southern California Begins the Race Between Rains and Santa Ana Winds

The autumn equinox was at 6:30 a.m. PDT on Tuesday, meaning there are nearly equal periods of daylight and darkness. From now until the winter solstice in December, days will gradually get shorter and nights will get longer in the Northern Hemisphere.

Autumn Arrives on North Coast With Hot, Dry Weather in Store, Low Reservoirs

Sun-baked mud is cracking along the bare margins of Lake Mendocino, the reservoir near Ukiah that helps sustain river flows for imperiled fish and supply water to 600,000 people in Sonoma and Marin counties.

The shoreline is about 100 yards out, leaving the boat ramp near Coyote Valley Dam high and dry. No people were in or on the water Monday, and geese were feasting on whatever the lake bed gave up.

A Warmer Second Half of August, and Some Tropical Moisture in the Mix? Plus: Thoughts About (a Dry?) Autumn.

Recent conditions across California over the past 3-5 weeks have been pretty typical by mid-summer standards. It has been pretty hot across inland valleys and deserts, relatively cool (and even occasionally chilly) along the immediate coast, with a few instances of afternoon thunderstorms activity the interior mountains. There have not been any major heatwaves recently, which is likely a welcome development for many folks.