Heavy Rain and Flooding in the Southern Plains to the Great Lakes

Several days of heavy rainfall will lead to flash flooding and river flooding from the Southern Plains to the Southern Great Lakes. A band of freezing rain is forecast across portions of the Southern Plains into the Middle Mississippi Valley.
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Last Update: 315 AM PST Wed Feb 21 2018

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Medford, OR Local Forecast Office

44NM SW Port Orford OR

Marine Zone Forecast


...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT THROUGH LATE TONIGHT...
Synopsis: Low pressure is moving southward along the coast. Seas will be steep at times due to wind waves and fresh swell. Another low will move onshore from the north/northwest late tonight. North winds will increase over the waters behind the low Thursday. Winds and seas will be relatively light Thursday into Friday. A weak front will move onshore Friday. A stronger front will move onshore Sunday, and there may be heavy northwest swell as well.

Today
Northern portion, N wind 10 to 20 kt. Southern portion, SE wind 10 to 20 kt...backing to N 5 to 15 kt until late afternoon, then...rising to 15 to 20 kt late afternoon. Wind waves 3 to 5 ft. Mixed swell NW 4 to 5 ft at 8 seconds and W 4 ft at 15 seconds. Chance of rain early in the morning. Slight chance of showers.
Tonight
NW wind 10 to 20 kt...rising to 15 to 25 kt after midnight. Wind waves 3 to 5 ft. Mixed swell NW 5 to 7 ft at 8 seconds and W 3 to 4 ft at 14 seconds. Showers likely.
Thu
N wind 20 to 25 kt. Wind waves 5 to 7 ft. Mixed swell NW 3 to 5 ft at 12 seconds and W 2 ft at 17 seconds. Chance of showers.
Thu Night
N wind 20 to 25 kt...easing to 15 to 20 kt after midnight. Wind waves 5 to 7 ft. W swell 3 ft...shifting to the NW 4 to 5 ft after midnight.
Fri
Northern portion, N wind 10 kt in the morning... Becoming variable less than 5 kt. Southern portion, N wind 10 to 15 kt. Wind waves 3 to 5 ft. W swell 5 to 6 ft.
Fri Night
W wind 10 to 15 kt. Wind waves 2 ft or less. W swell 5 to 6 ft. Chance of rain.
Sat
W wind 20 kt...rising to 25 kt in the evening, then... Easing to 15 kt after midnight. Wind waves 5 to 6 ft...subsiding to 4 ft after midnight. W swell 5 ft...building to NW.
Sun
W wind 15 kt...backing to SW in the afternoon, then... Veering to W. Wind waves 4 ft...building to 6 ft in the afternoon and evening, then...subsiding to 4 ft after midnight. NW swell 12 to 13 ft.
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ABOUT THIS FORECAST

Last Update: 315 AM PST Wed Feb 21 2018
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