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Weather Forecast for Monday, Nov. 18
The latest forecast for the greater Los Angeles area, including beaches, valleys and desert regions.
A powerful bomb cyclone associated with a major atmospheric river is forecast to drench the West Coast, from Washington to California, midweek, potentially leading to flooding.
The term "bomb cyclone" comes from the meteorological term "bombogenesis" or "explosive cyclogenesis." This happens when a storm system's central pressure drops at least 24 millibars within 24 hours.
A strong atmospheric river is set to hit the West Coast, from Washington to California, midweek. (FOX Weather)
A big stream of moisture is set to arrive Tuesday night and will stick around through late in the week, possibly into the weekend, the FOX Forecast Center said.
RELATED: California weather forecast: 1st significant rain of season possible this weekend
This system will bring steady, moderate rain for several days, potentially flooding roads, small streams and even larger rivers.
Forecasts show a big stream of moisture arriving Tuesday night and sticking around through late in the week, possibly into the weekend. (FOX Weather)
From Wednesday to Friday, some areas could see 2-4 inches of rain daily, with even higher amounts possible in the mountains.
Daily rain amounts of 2-4 inches are expected over the course of several days. (FOX Weather)
Strong winds will also begin to blow in Tuesday evening as the storm moves in. Gusts of 60-70 mph are expected in exposed areas like ridges, headlands and parts of the coastal plains, the FOX Forecast Center said.
Strong winds will also kick in Tuesday evening as the storm moves in. (FOX Weather)
Like most atmospheric rivers, this one will dump feet of snow in the Cascades and Sierra Nevada. However, the warmer Pacific air being pulled in by strong winds will raise snow levels higher than usual.
Blizzard Warnings have been posted for all the Cascades from late Tuesday afternoon through Wednesday morning. This is where high winds are most likely to overlap with snow and reduce visibility to a quarter-mile or less for at least three consecutive hours.
This atmospheric river will dump feet of snow in the Cascades and Sierra Nevada. (FOX Weather)
Snow will likely begin around 3,500 feet, with the heaviest amounts above 4,000 feet, blanketing mountain ranges with several feet of snow.
Get the latest updates on this story on FOXWeather.com.