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Official Twitter account for the National Weather Service San Francisco Bay Area. Details: https://t.co/ayJVrZqhCS
Jul 11, 2023 โ€ข 11 tweets โ€ข 3 min read
Who wants to learn this morning?!

Let's talk about the marine layer...what it is, what it has to do with @KarlTheFog, and why it can create headaches in forecasting heat along the coast.

๐Ÿงต
#MarineLayer #CAwx We're all familiar with the clouds and fog that we can get in the mornings, but what happens in the afternoons when the clouds go away? Is the marine layer still there? Many times during the summer, the answer is yes!
Dec 2, 2021 โ€ข 8 tweets โ€ข 4 min read
Time for a ๐Ÿงต

A hazy view from the nest cam in the City this morning as a temperature inversion continues to trap pollutants near the surface. Now is a good a time as any to do a deep-dive into the science behind these set ups. #CaWx It is important to highlight that when we talk about pollution we are often referring to two key particulates: PM and Ozone. Both tend to be emitted ๐Ÿญ from a wide arrange of emission sources and spread outward into the lower levels of the atmosphere. PM and Ozone