An atmospheric river pattern will develop late on Friday and persist through early next week. This will result in persistent rainfall across western Washington with periods of moderate to heavy precipitation in some areas. In addition, snow levels will also rise well above 7000 feet through the same period. This will lead to sharp rises on streams and rivers throughout the area, increasing the potential for river flooding. Moderate to heavy rain may lead to roadway ponding and minor nuisance flooding at poor drainage areas. At this time, the focus for the heaviest precipitation is aimed across the Olympic mountains and the North Cascades. This may evolve as the event approaches. This prolonged period of rainfall would keep the Skokomish River above minor flood stage for several days, along with possibly of reaching Moderate flood stage. In addition to hydrologic impacts, there may also be an elevated landslide risk this weekend into next week.