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Heavy SF Fog May Not Going Anywhere For Days

KPIX 5 Morning Weather Anchor Roberta Gonzales answers the questions you never get to ask on-air.

Q: Do you how long these foggy mornings are going to last? I enjoyed having warm sunny weather last week and I hate having to see it go away. - Brian Hardy, San Francisco

A: Thursday morning, the clouds associated with the Marine Layer will mix out!

The marine layer has remained fairly steady for the past 24 hours at roughly 3,000 feet. This is quite extensive! There will be very little change over the next few days with patchy drizzle at night and early mornings.

So what's it going to take to make our weather pattern change? An area of low pressure. And that will certainly happen on Thursday!

Computer modules indicate this low pressure system will dive south from the north on Thursday and mix out the clouds associated with the marine layer. In addition, as we track the low, there is a chance of isolated showers in the highest elevations of our local mountain ranges. If any of the precipitation makes it here, the Bay Area could see up to a tenth of an inch of rain. Any bit helps.

After the low pressure system is out of here, we will return to the onshore flow, however the marine layer will not be as extensive as our current cloud cover, which means earlier lifting of the clouds and more sunshine for the weekend.

I would love to hear from you! Please send weather questions, observations and photos to me, and I look forward to hearing from you!

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