Significant Snowfall for Washington Cascades and Northern Rocky Mountains

A cold front will linger for several days from the Pacific Northwest to portions of the northern Plains early this week. Cold temperatures and copious moisture will combine to produce several feet of snow into the mountain passes, with up to 4 feet of snow down to 4000 feet in the northern Rockies. Travel through mountain passes will be very difficult.
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Last Update: 800 PM EST Sun Dec 17 2017

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Buffalo, NY Local Forecast Office

9NM NNE Irondequoit NY

Marine Zone Forecast

Rest Of Tonight
Southeast winds 5 to 15 knots becoming south. A chance of snow. Waves 2 feet or less.
Monday
South winds 5 to 15 knots becoming southwest. Snow likely in the morning, then rain likely in the afternoon. Waves 1 foot or less.
Monday Night
Southwest winds 10 to 15 knots increasing to 15 to 20 knots. A chance of rain in the evening, then a chance of rain showers overnight. Waves 1 to 3 feet building to 2 to 4 feet.
Tuesday
Southwest winds 15 to 25 knots becoming west. A chance of rain showers. Waves 3 to 6 feet building to 5 to 8 feet. Waves occasionally around 10 feet.
Tuesday Night
West winds 20 to 25 knots. Rain showers likely in the evening, then lake effect snow showers likely overnight. Waves 5 to 9 feet. Waves occasionally around 11 feet.
Wednesday
Northwest winds 15 to 25 knots becoming north and diminishing to 10 to 15 knots. Lake effect snow showers likely during the day, then a chance of snow showers wednesday night. Waves 5 to 8 feet subsiding to 2 to 4 feet. Waves occasionally around 10 feet.
Thursday
North winds 5 to 15 knots becoming east. A chance of snow thursday night. Waves 1 to 3 feet.
Friday
Southeast winds 15 to 20 knots becoming south. A chance of rain and freezing rain during the day, then rain and snow showers likely friday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. the water temperature off rochester is 38 degrees.
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Last Update: 800 PM EST Sun Dec 17 2017
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