Forecast for West Slopes Northern Cascades and Passes
Today
Windy. Rain and snow...decreasing to showers in the afternoon. Snow level 2000 feet. Snow accumulation of 8 to 16 inches. Afternoon pass temperatures in the lower 30s. Light wind becoming west 20 to 30 mph this afternoon.
Tonight
Showers likely. Snow level 2000 feet. Snow accumulation up to 4 inches. West wind in the passes 10 to 15 mph.
Monday
Cloudy with a chance of rain or snow in the morning...then rain and snow in the afternoon. Snow level 2500 feet. Snow accumulation up to 5 inches in the north Cascades. Afternoon pass temperatures in the lower to mid 30s. Light wind becoming southeast near 10 mph in the afternoon.
Today Wind becoming SW 20 to 30 kt...with gusts to 40 kt over the far S sound...by noon...except NW 5 to 15 kt over the N sound. Wind waves building to 1 to 4 ft. Showers...decreasing in the afternoon.
Tonight SW wind 10 to 20 kt...except NW 5 to 15 kt over the N sound. Wind easing and becoming S over the entire area after midnight. Wind waves up to 3 ft...subsiding. A chance of evening showers.
Mon S wind 5 to 15 kt. Wind waves 2 ft or less. Rain...mainly in the afternoon.
... Winter Storm Warning remains in effect until 1 PM PST Sunday...
A Winter Storm Warning remains in effect for the northern and central Cascades until 1 PM PST Sunday.
A vigorous Pacific frontal system will bring very heavy snowfall to the Cascades through midday Sunday. Storm total snowfall will likely be in the range of one foot to two and a half feet. The heaviest periods of snow will be tonight with 10 to 20 inches expected.
The snow level will be near 3000 feet tonight... then fall to 2000 feet on Sunday afternoon as snowfall tapers off.
Precautionary/preparedness actions...
A Winter Storm Warning means significant amounts of snow... sleet... and ice are expected or occurring. Strong winds are also possible. This will make travel hazardous or impossible. If you plan to travel into the Cascades be prepared for hazardous driving conditions... long delays... and Road closures.
2009 Hurricane Coverage
Winter Storm Warning