5,000-Mile-Long Atmospheric River Stretching From China To B.C. Forecast To Drop 28-80″ of Snow on Whistler Next 7-Days “I have been watching the weather in the PNW and around the west for 48 years and that has to be the longest atmospheric river I have ever seen on satellite photos.” ~ NWS Seattle Spotter Pierce 3, today A 5,000-mile-long plume of moisture (atmospheric river) stretching from China to British Columbia is about to drop somewhere around 28-80″ of […] Weather WeatherBrains | October 16, 2017 14 Comments