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: 338 AM CST Mon Dec 18 2017

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Corpus Christi, TX Local Forecast Office

25NM SSE Seadrift TX

Marine Zone Forecast


Synopsis: A coastal trough will develop today and contribute to isolated to scattered showers through tonight. Isolated thunderstorms may also develop. Weak north to northeast winds will persist over the waters today but begin to increase and turn more east-southeast late tonight. Sea fog is expected to develop late tonight across area bays and nearshore waters. Offshore flow and drier conditions are expected to develop Tuesday night into 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. Chances for showers will increase on Friday as a cold front moves through the region, bringing potentially moderate to strong offshore flow Friday night.

Today
Northeast wind around 10 knots shifting east late. Seas 2 to 3 feet. A chance of showers. Isolated thunderstorms in the afternoon. Patchy fog in the afternoon.
Tonight
Southeast wind 5 to 10 knots. Seas 2 to 3 feet. Areas of fog. A slight chance of showers in the evening. Isolated thunderstorms. A chance of showers after midnight.
Tuesday
South wind 10 to 15 knots. Seas 3 to 4 feet with occasional seas up to 5 feet. Areas of fog. A slight chance of showers and isolated thunderstorms.
Tuesday Night
Southwest wind 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Seas 2 to 4 feet with occasional seas up to 5 feet. Areas of fog in the evening. A chance of showers in the evening, then a slight chance of showers after midnight.
Wednesday
North wind 5 to 10 knots. Seas 2 to 3 feet.
Wednesday Night
Southeast wind 5 to 10 knots. Seas 2 to 3 feet.
Thursday
South wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet with occasional seas up to 5 feet. A slight chance of showers.
Thursday Night
South wind 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. A slight chance of showers.
Friday
South wind around 15 knots shifting southwest in the afternoon. Seas 4 to 6 feet with occasional seas up to 8 feet. A chance of showers.
Friday Night
Northwest wind 15 to 20 knots shifting north after midnight. Seas 4 to 6 feet with occasional seas up to 8 feet. A chance of showers.
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ABOUT THIS FORECAST

Last Update: 338 AM CST Mon Dec 18 2017
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