Low Lying Clouds & Fog for Valleys Today

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Low lying clouds and fog will be persistent through much of the day across the valleys, keeping temperatures pretty steady from morning to night. Numerous advisories are in place this morning to account for the current conditions – a dense fog advisory, a freezing fog advisory & also an air stagnation advisory.

Widespread fog is expected to stay dense all day long west of the Cascades. Because temperatures are near and below freezing this morning, this is freezing fog which will leave a light layer of ice on the roads. Drive carefully over bridges and overpasses especially, which cool & ice over faster than other roads.

Fog will burn off over Siskiyou County & in the Basin by midday, making way for sunny to mostly sunny skies. If you’d like to escape the fog in the Valley, you can head up to the higher elevations where a pleasant and mild day is expected (also at the Coast).

Poor air quality will continue through the middle of the week when our next storm system will move through. Wednesday’s front will bring scattered showers into the afternoon and also cold air to the region. This will likely bring snow showers to the Basin and rain showers to the Valley.

Winds and rain/snow (nothing significant though) will help to flush out the trapped air at the surface which will in turn, improve air quality and help clear out the fog.


Meteorologist Alyssa Caroprese