A soaking weather pattern that began Thursday along the West Coast is finishing up with one more storm heading inland through Monday.

The storm systems impacting areas from central California to the Pacific Northewest over the last few days have been tapping into a so-called atmospheric river. This has resulted in inches of rain and mountain snow.

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(This graphic shows the forecast precipitation totals expected through next Monday. These forecast amounts are subject to change.)

Forecast: Rain Lingers on Monday

Additional rainfall is expected from Northern California to the Pacific Northwest on Monday.

Given that the ground is already saturated from heavy rain the last few days, we could see more landslides, debris flows, sharp rises on streams and rivers and urban flooding.

In fact, evacuations were being considered in Dunsmuir, California on Monday morning due to the Sacramento River topping its banks.

High winds from this final storm system also knocked down trees in Mendocino, Del Norte and Humboldt Counties in northwest California late Sunday into early Monday.

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Outside of some rain and mountain snow in the Northwest on Tuesday, much of the West will quiet down through the week ahead.

Recap Thursday-Friday: Notable Snow, Rain, and Wind Reports

Downed trees and power lines were reported on Friday morning in the South Lake Tahoe area, and a wind gust of 134 mph was recorded at the top of Slide Mountain, at an elevation of 9700 feet, southeast of Reno, Nevada. Even in the lower elevations gusts of 60 mph have been reported. In addition, wind gusts as high as 89 mph were also reported near Summerlake, Oregon early on Friday morning.

In western Washington, as much as 2 to 4 inches of rain (locally as high as 7 inches) fell in the eastern foothills of the Olypmpic Mountains through Friday. The National Weather Service states that the Duckabush River flooded its banks near the town of Brinnon, resulting in flooded houses, roads, and vehicles on Friday evening.

On Saturday morning, 19 inches of snow was measured at Mount Rose ski area in Nevada, while 12 inches of snow was reported at Diamond Peak ski resort in Nevada, while Northstar ski resort and Alpine Meadows in California both reported 10 inches of snow, with 7 inches at Mammoth Mountain ski resort.

Some impressive rainfall totals have already accumulated as of 7 p.m. PST Sunday:- 11.44 inches near Honeydew, California- 8.03 inches at the Penitencia Water Treatment in Santa Clara County, California- 7.28 inches in Carrville, California- 7 inches near Sims, California- 6.01 inches in Ettersburg, California- 5.13 inches in Kerby, Oregon- 5.08 inches in Rocky Butte, California- 5.08 inches near Selma, Oregon- 4.43 inches near Brinnon, Washington- 4 inches near Brookings, Oregon

The weather systems impacting the West Coast through early next week is tapping into what meteorologists call an atmospheric river. This term is used to describe a long, narrow plume piping deep moisture from the tropics into the mid-latitudes. One type ofatmosphericriver you may have heard of is thea pronounced plumetappingmoisturefrom the Hawaiian Islands to the U.S. West Coast.

More About Atmospheric Rivers

Here are some more facts about atmospheric rivers:

According to NOAA's Earth System Research Laboratory (ESRL), a strong atmospheric river can transport as water vapor up to 15 times the average flow of liquid water at the mouth of the Mississippi River.If an atmospheric river stalls over a particular area, significant flooding can be the result. In fact, a study by Ralph et al. (2006) found atmospheric rivers responsible for every flood of northern California's Russian River in a seven-year period.They're also important for western water supply considerations. According to NOAA/ESRL, 30-50 percent of the average annual precipitation in the West Coast states typically occurs in just a few atmospheric river events.

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