Updated: Saturday, January 21, 2017 07:10 AM
More rain expected today and tonight as another Pacific weather system pounds Northern California by late afternoon into tonight.
Residual moisture this morning is producing some rain showers rather than snow like yesterday as the temperature is running about 4° warmer than 24 hours ago. This location has received (as of 6:20 am) 0.22" of rain so far since midnight, and rain is still falling lightly. The peak rainfall rate has only been 0.26"/hr. at 4:04 am. The low temperature this morning has been 36.0° at 4:22 am. Winds overnight have been running about 5-10 mph.
There is a 65% chance of measurable precipitation early this morning, dropping back to a 55% chance by late morning into late afternoon. As the next Pacific weather system reaches our area, the odds of precipitation should bump up to a 100% chance by late this afternoon into Sunday afternoon. About 1" of rain is currently predicted through midnight tonight. Snow levels are expected to remain above 3400' to about 4000'. The afternoon high temperature is predicted to reach about 44°, and the low temperature tonight near 38°. Winds are expected to be out of the south to southeast today and tonight and could reach up to 26 mph over open terrain and at the tree tops. Power outages are a possibility with such strong winds and a soaked ground.
Sunday should see a 100% chance of rain or sleet during the morning hours, dropping back to a 95% chance late morning into the afternoon. Odds may gradually decrease to a 40% chance by late Sunday night. There is a chance of some sever thunderstorms over the Northern Sacramento Valley late Sunday afternoon, and some could drift over the foothill areas. Snow levels are currently predicted to drop to near 3200' during the morning, rising to about 3800' by Sunday night. The afternoon high temperature is predicted to reach about 43°, and the low Sunday night near 36°. Southerly winds could be as high as 26 mph during the morning hours, dropping back to near 12 mph by late Sunday night. Tree damage and power outages could occur with these kind of winds.
Monday into Tuesday afternoon could see precipitation odds continue as low pressure slides south along the coastline and continues to drop to the southeast. Monday morning may see the snow level drop to near 2700', and rise to 2800' during the day. There is a chance of some valley thunderstorms where sunshine destabilizes the atmosphere. Some of these thunderstorms could drift from the valley into foothill areas. Tuesday night may see the precipitation chances drop back to a 5% chance. High pressure is forecast to allow for fair and dry weather for the latter-half of next week, along with a slight warming trend. Have a great weekend. Bob