The exact strength and overall impact of this potential event should become clearer once this week’s atmospheric river comes to an end on Wednesday.ĬNN’s Allison Chinchar, Sara Tonks and Robert Shackleford contributed to this report. ![]() There are some early signs in forecast computer models of yet another atmospheric river hitting the region by the early weekend. Heavy rainfall may also trigger landslides or debris flows in areas burned by wildfires because the ground is less able to absorb it effectively.īy Thursday and Friday, storm activity is forecast to scale back across much of the Northwest, but showers and some high-elevation snow remain possible. Where’s the snow? These major Northeast metros have gone nearly two years without a significant blast of winterĪn avalanche warning was in place over the weekend for portions of Washington and Oregon and it’s likely more will be issued in the coming days. Wind becoming southwest 20 km/h in the morning. (Photo by Gary Hershorn/Getty Images) Gary Hershorn/Corbis News/Getty Images Periods of snow ending in the morning then cloudy with 30 percent chance of rain showers. Southwest wind around 10 mph, with gusts as high as 15 mph. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. NEW YORK, NY - FEBRUARY 28: A person crosses the Gapstow Bridge in Central Park in front of buildings along Central Park South after a snowfall on February 28, 2023, in New York City. Mostly cloudy, then gradually becoming mostly clear, with a low around 35. This amount of rain is enough to raise rivers on its own, but the impact of this week’s heavy rainfall will be increased because it will fall so soon after the area was deluged with rain and snow over the weekend. Outside of the mountains, rainfall amounts in western Washington and western Oregon could climb into the 3 to 6 inch range this week. Parts of the Cascades that were buried in snow over the weekend may record more than a foot of rain from late Monday through Wednesday. Stay prepared with detailed local weather information, including temperature. Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 34 ☏. Get accurate and up-to-date weather forecasts for your location for Monday. ![]() The heaviest rainfall will begin Monday evening from coastal Washington and Oregon into the Cascade mountains. Hour-by-Hour Forecast for Toronto, Ontario, Canada. ![]() CNN WeatherĪn atmospheric river directs tropical moisture from the Pacific straight to the West Coast in the form of heavy rain and snow and is the Northwest’s hallmark type of winter storm.Ītmospheric rivers are categorized on a five-point scale, with 1 describing “weak” storms and 5 classified as “exceptional.” This week’s event is considered a Level 4 out of 5, or “extreme,” atmospheric river for much of the Oregon coastline and a Level 3 out of 5 “strong” event for the Washington coast. The severity of the upcoming atmospheric river event is shown at many points along the Northwest coast.
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