SEATTLE (AP) — The Pacific Northwest is bracing for flooding and landslides. The mountains will see heavy snow and possible avalanches on Tuesday and Wednesday as an atmospheric river collides with Washington and Oregon. The Snoqualmie River near Carnation, Washington, is expected to produce minor to moderate flooding by Wednesday. Even metro areas like Seattle, Tacoma and Olympia could experience street flooding due to intense downpours. The National Weather Service in Portland has issued a Flood Watch for 10 p.m. Monday night to Wednesday morning at 10 a.m. Excessive rain is also creating a threat for landslides on Tuesday and Wednesday.