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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Hazardous Weather Conditions

Last Update: 950 PM CST Sun Dec 17 2017

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Lake Charles, LA Local Forecast Office

49NM S Sabine Pass TX

Marine Zone Forecast


Synopsis: A warm frontal boundary will continue moving slowly northward tonight across Southeast Texas through Southern Louisiana before becoming stationary once again Monday. South winds will prevail to the south of the boundary with an east to northeast flow to the north of it. Marine fog will steadily increase as moisture rich air is transported atop relatively cooler shelf waters. The probability of marine fog will continue for all of the coastal waters on Monday, and remain elevated until a frontal passage late Tuesday night into Wednesday. Increasing lift will aid in generating scattered showers and thunderstorms after midnight along and to the north of the front, with this activity becoming more numerous as it moves inland in tandem with the boundary on Monday. This front will also be accompanied by scattered showers and thunderstorms, but will usher a brief shot of drier air into the coastal waters, before moisture and rain chances increase again on Friday.

Rest Of Tonight
East winds 5 to 10 knots. Seas 2 to 4 feet. Patchy fog through the night. Slight chance of showers and thunderstorms late in the evening. Chance of showers and thunderstorms after midnight.
Monday
East winds 5 to 10 knots. Seas 2 to 4 feet. Patchy fog through the day. Showers and thunderstorms likely in the morning. Chance of showers and slight chance of thunderstorms in the afternoon.
Monday Night
Southeast winds around 10 knots. Seas 2 to 4 feet. Areas of fog. Slight chance of showers and thunderstorms.
Tuesday
South winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers and thunderstorms.
Tuesday Night
South winds 10 to 15 knots becoming west after midnight. Seas 2 to 4 feet. Showers likely in the evening. Slight chance of thunderstorms through the night. Chance of showers after midnight.
Wednesday
Northwest winds 5 to 10 knots. Seas 2 to 4 feet.
Wednesday Night
Southwest winds around 5 knots becoming south after midnight. Seas 2 to 4 feet.
Thursday
Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Thursday Night
South winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers and thunderstorms.
Friday
South winds around 15 knots. Seas 3 to 5 feet. Chance of showers and slight chance of thunderstorms.
Friday Night
West winds 15 to 20 knots becoming northwest after midnight. Seas 3 to 5 feet. Chance of rain showers and slight chance of thunderstorms.
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ABOUT THIS FORECAST

Last Update: 950 PM CST Sun Dec 17 2017
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