Nov 7, 2012 1:46 AM by Dave Hovde
Low clouds and fog have developed near the coast, a sure sign the weather pattern of the last few days providing heat has broken down.
We have been enjoying weather under a broad upper ridge but it is breaking down quickl. The first thing you'll notice (outside of the early clouds) is how much cooler the highs will be compared to Monday and Tuesday, also the winds will be decidedly onshore.
An upper low near British Columbia will continue to push southward and this will likely help to deepen and re-establish the marine layer Wednesday night into Thursday morning to continue to cool temperatures, some drizzle is even possible.
That upper low will move across northern California on Thursday night into Friday, and even though it won't have much moisture to work with, it'll likely have enough to produce some scattered showers. More than anything it'll continue to usher in much colder air and highs Friday could be in the upper 50s and lower 60s.
The low lifts out over the weekend, and temperatures recover back into the mid to upper 60s but the overnight lows will be quite cool (especially inland where some lower 30s are possible).
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