Arnold, CA…The National Weather Service in Sacramento is forcasting…Strong north to east winds are forecast over interior northern California beginning late Sunday night and lasting into Tuesday evening. The winds are expected to be strong enough to damage trees and cause power outages. The strongest winds are expected to be Monday night and Tuesday over most of the area.

The strong winds are the result of the difference in pressure between a strong low pressure system moving over the area on Monday and strong high pressure building in behind it Monday night and Tuesday.

Detailed forecast for West Slope Northern Sierra Nevada
Today
Mostly sunny. Highs 46 to 61 higher elevations…60 to 70 lower elevations. Prevailing northeast winds up to 10 mph.
Tonight
Clear. Lows 31 to 46 higher elevations…43 to 54 lower elevations. Prevailing northeast winds 5 to 15 mph.
Sunday
Mostly sunny. Warmer. Highs 49 to 64 higher elevations…62 to 72 lower elevations. Prevailing northeast winds up to 15 mph.
Sunday Night
Partly cloudy in the evening then becoming mostly cloudy. Breezy, colder. Lows 26 to 41 higher elevations…39 to 50 lower elevations. Prevailing northeast winds up to 10 mph increasing to 10 to 25 mph after midnight.
Martin Luther King Jr Day
Mostly sunny. Windy. Highs 36 to 51 higher elevations…51 to 63 lower elevations. Prevailing northeast winds 15 to 30 mph with gusts to around 45 mph. Over ridges, prevailing northeast winds 35 to 50 mph with gusts to around 65 mph decreasing to 20 to 30 mph in the afternoon.
Monday Night
Clear, windy, colder. Lows 23 to 38.
Tuesday
Sunny, windy. Highs 36 to 51.
Tuesday Night Through Thursday
Mostly clear. Breezy. Lows 24 to 39. Highs 43 to 58.
Thursday Night
Partly cloudy. Lows 23 to 38.
Friday
Partly cloudy with a chance of snow showers. Highs 32 to 47.

Detailed forecast for Motherlode
Today
Mostly sunny. Highs 61 to 71. Prevailing east winds up to 10 mph shifting to the southwest in the afternoon.
Tonight
Clear. Lows 43 to 53. Prevailing south winds up to 10 mph shifting to the east after midnight.
Sunday
Sunny. Highs 64 to 72. Prevailing northeast winds 5 to 15 mph shifting to the west in the afternoon.
Sunday Night
Partly cloudy. Lows 43 to 51. Prevailing southwest winds up to 10 mph shifting to the northeast with gusts to around 35 mph after midnight.
Martin Luther King Jr Day
Mostly sunny. Breezy. Highs 59 to 69. Prevailing north winds 10 to 25 mph with gusts to around 40 mph.
Monday Night
Clear, breezy, colder. Lows 36 to 46.
Tuesday
Sunny, breezy. Highs 54 to 64.
Tuesday Night Through Thursday Night
Mostly clear. Lows 33 to 43. Highs 55 to 64.
Friday
Partly cloudy with a slight chance of rain showers. Highs 46 to 54.