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November 11, 2019 – Dry and mild weather pattern continues early this week. Locally breezy northeast winds Monday. Mid to late week, cooling temperatures and continued dry.

Discussion

An anomalously cold trough digging into the central US is bringing increased north to northeast flow to NorCal. The strongest winds will be over wind prone ridgetops and canyons into the early afternoon. Valley winds will pick up by mid morning with the strongest winds over the northern Sacramento Valley.

Overall the winds will be low impact but could bring a short period of increased fire weather concerns. High clouds are starting to push into the northern part of the CWA and we will continue to see high clouds today across the area as a short wave trough passes to our north.

High cloudiness will continue on Tuesday as the short wave trough pushes east through the PacNW. A short wave trough off to our west will approach NorCal on Wednesday and this will bring increased mid and high level clouds. The trough axis will move through the area late Thursday into Friday with no precip expected. The dynamics with the trough are weak and this will keep winds overall light.

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Well above average highs will continue and we could see some record highs broke this afternoon. Record highs are in the low to mid 80s north and mid to upper 70s south and that is what we are expecting for highs today. Highs will gradually cool each day after today as we see falling heights but they will remain well above average. Except for the thermal belts, overnight lows will remain near or slightly above average through the period.

Extended Discussion (Friday through Monday)

Later this week into the weekend, there is strong ensemble support of another building ridge which will result in a warming trend along with a decrease in humidities. High temperatures will be around 10-15 degrees above average for mid-November.