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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Coastal Waters Forecast for Waters from Port Mansfield TX to the Rio Grande River from 20 to 60 NM (GMZ170) (Text-Only)
NWS Forecast for: Waters from Port Mansfield TX to the Rio Grande River from 20 to 60 NM (GMZ170)
Issued by: National Weather Service Brownsville, TX
Last Update: 318 AM CST Mon Dec 18 2017
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Today: Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Chance of showers through the day. Isolated thunderstorms in the afternoon.

Tonight: Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Isolated thunderstorms in the evening. Slight chance of showers through the night.

Tuesday: South winds 10 to 15 knots. Seas 3 to 5 feet. Slight chance of showers in the morning.

Tuesday Night: South winds 5 to 10 knots shifting west after midnight. Seas 2 to 4 feet. Slight chance of showers.

Wednesday: North winds 5 to 10 knots shifting northeast in the afternoon. Seas 3 to 5 feet. Slight chance of rain.

Wednesday Night: East winds 5 to 10 knots shifting southeast after midnight. Seas 2 to 4 feet.

Thursday: South winds 10 to 15 knots. Seas 2 to 4 feet.

Thursday Night: South winds 15 to 20 knots. Seas 3 to 5 feet.

Friday: South winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 8 feet. Chance of showers.

Friday Night: West winds 15 to 20 knots shifting north after midnight. Seas 3 to 5 feet. Chance of showers.



Zone Forecast: Waters from Port Mansfield TX to the Rio Grande River from 20 to 60 NM (GMZ170)

Visit your local NWS office at: http://www.srh.noaa.gov/bro