* WHAT...Heavy snow expected above 5000 feet. Total snow
accumulations of 6 to 12 inches above 5000 feet, with 2 to 4 feet
above 6000 feet. Locally higher amounts at highest peaks. Winds
gusting as high as 55 mph.

* WHERE...West Slope Northern Sierra Nevada and Western Plumas
County/Lassen Park above 5000 feet.

* WHEN...From 10 PM Friday to 4 PM PST Monday.

* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Friday evening through
Monday morning commutes. Strong winds could cause tree damage.

* ADDITIONAL DETAILS...Snow levels 6500-7500 feet Friday night into
Saturday morning, lowering to 5000 to 6000 feet Saturday afternoon
into Sunday, and further to around 4500 to 5500 feet by early
Monday morning. Heaviest snow expected on Sunday.

Check the latest road conditions from Caltrans online at
quickmap.dot.ca.gov or dial 5 1 1.

Periods of moderate to heavy rain may fall this weekend over a
decent snowpack from the Christmas storm system. Rain/snow
elevations will be initially around 6500 to 7000 feet Saturday,
increasing runoff as the snow melts. Flows in rivers may increase
quickly and approach flood levels. Rain/snow elevations are forecast
to drop below 6000 feet Sunday into Monday.

* WHAT...Flooding caused by rain and snowmelt continues to be
possible.

* WHERE...A portion of northeast California, including the following
area, Lassen-Eastern Plumas-Eastern Sierra Counties, including the
Susan River near Susanville, and the Middle Fork Feather River
near Portola.

* WHEN...From Saturday morning through Monday afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas. Rockfalls are also possible in
areas of steep terrain. The Susan River is currently forecast to
reach action stage by Saturday afternoon, and the Middle Fork
Feather River is currently forecast to reach action stage by
Monday afternoon. However, greater than expected rainfall and/or
delayed transition to snowfall could easily push the Susan and the
Middle Fork Feather rivers higher. Slow rises and high flows are
also expected on the Pit River near Canby.

* ADDITIONAL DETAILS...
- Enhanced runoff and sediment transport are likely below
recent burn areas, but debris flows are not expected.
- For river forecast updates: https://www.cnrfc.noaa.gov
For flood safety information:
http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.