National Weather Service United States Department of Commerce

Dangerous Cold Weather for Most of the Country; Rare Winter Storm for the South; Fire Weather Concerns for Southern California

Arctic air will filter south and east through early this week. As this cold air moves across the South, a rare winter storm is forecast to develop from Texas, Gulf Coast States into the Southeast through early this week. Several new daily record low temperatures are expected, including new record-low maximum temperatures. For Southern California, fire weather concerns increase this week. Read More >

There is a high risk of dangerous sneaker waves through Sunday evening along the southern Oregon coast. Sneaker waves are waves that run up on beaches significantly farther than other waves and can surprise beachgoers. People can be knocked down and pulled into the ocean by these waves, resulting in injury or drowning. Sneaker waves are very powerful and can move logs and other debris, potentially crushing or trapping unsuspecting people. For those at the beach, never turn your back on the ocean! Keep your distance from the waves and avoid climbing on rocks, jetties or logs when there is an increased threat of sneaker waves. If you see someone swept into the ocean, do not swim in after them! Call 911 and keep an eye on them until help arrives.
Dense and freezing fog are likely to develop in valleys of Douglas, Jackson, and Josephine counties during the overnight and morning periods through at least Tuesday. Low visibilities down to less than a quarter of a mile are expected, and frost may develop on paved surfaces. Take caution. Turn on your low beam lights, drive slowly, and keep your distance from other vehicles. Consider delaying travel until conditions improve. Learn more about these conditions by visiting at weather.gov/safety/fog
High pressure will be over the area through at least Tuesday with strong valley inversions. Light winds and limited vertical mixing beneath the inversions will maintain stagnant air in the lower elevations away from the immediate coast. A weak system mid-week may briefly bring improved conditions.

 

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