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: 329 PM CST Sun Dec 17 2017

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Corpus Christi, TX Local Forecast Office

45NM SSE Port O Connor TX

Marine Zone Forecast


Synopsis: A coastal trough will develop tonight through Monday and contribute to isolated to scattered showers. Isolated thunderstorms may also develop. Generally weak northeast wind will persist over the bays and nearshore coastal waters tonight and Monday. Weak to moderate onshore flow will develop areawide Monday night as an upper level disturbance approaches from the west. The upper system will contribute to scattered showers and isolated thunderstorms Monday night. Sea fog will develop Monday night over the bays and nearshore coastal waters as warmer moist air overruns the cooler sea surface. Offshore flow and drier conditions are expected Wednesday as the upper disturbance moves east. Weak to moderate onshore flow will return Thursday as a strong upper level disturbance moves southeastward across the Rockies. Isolated showers are anticipated for Thursday night.

Tonight
East wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Seas 3 feet. A chance of showers after midnight.
Monday
Southeast wind around 10 knots. Seas 3 to 4 feet with occasional seas up to 5 feet. A chance of showers. A slight chance of thunderstorms in the afternoon.
Monday Night
Southeast wind 10 to 15 knots. Seas 3 to 4 feet with occasional seas up to 5 feet. A slight chance of showers and thunderstorms.
Tuesday
South wind 10 to 15 knots. Seas 3 to 4 feet with occasional seas up to 5 feet. A slight chance of showers.
Tuesday Night
Southwest wind 10 to 15 knots shifting northwest after midnight. Seas 3 to 4 feet with occasional seas up to 5 feet. A slight chance of showers.
Wednesday
North wind 5 to 10 knots shifting northeast in the afternoon. Seas 3 feet.
Wednesday Night
Southeast wind 5 to 10 knots. Seas 2 to 3 feet.
Thursday
South wind 10 to 15 knots. Seas 2 to 3 feet.
Thursday Night
South wind 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Friday
South wind 15 to 20 knots becoming west 10 to 15 knots in the afternoon. Seas 5 to 6 feet with occasional seas up to 8 feet. A chance of showers.
Friday Night
North wind 15 to 20 knots. Seas 4 to 5 feet with occasional seas up to 6 feet. A chance of showers.
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ABOUT THIS FORECAST

Last Update: 329 PM CST Sun Dec 17 2017
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