8legs: Central valley, usa

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Before-and-after images from space: Tule fog smothers a huge swath of California

NASA satellite images contrast California before and during Tule fog, showing a dense shroud over the Central Valley.
Tule fog forms from a cool, moist layer near the Pacific with light winds, often trapping pollutants in valleys.
Forecasters expect most Central Valley areas to dodge the most hazardous conditions Monday evening, then fog may re-thicken overnight.
The pattern has a long history in California, influencing driving safety and sometimes triggering deadly pileups.
Although often hazardous for drivers, Tule fog also benefits crop growers by aiding certain dormancy requirements.
Officials advise drivers to use low beams and maintain distance when navigating fog, and to avoid stopping on highways unless in emergencies.
Central Valley parts include Merced, Fresno, Visalia and Bakersfield as the fog shifts, with periods of improved and reduced visibility anticipated.
The Times’ Terry Castleman reports on the Tule fog with context from weather experts and local history.
The article connects Tule fog to broader California weather patterns and public safety guidance.
The piece highlights past incidents, including a 2007 Highway 99 pileup involving 108 vehicles.

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