This weekend’s rain event is the result of an atmospheric river — a long, fat column of moisture aloft that looks a lot like a river in satellite imagery.
The nearly 3.5 inches at the city’s official monitoring station was a daily record – the most rain that’s fallen on January 21st ever – and also a monthly record – the most rain that has ever fallen in January.
The heavy rain on top of new snow in higher elevations is also raising concerns about potential avalanches. A
A massive wind and rain storm that began Friday is causing flooding and mudslides in the Pacific Northwest near the Canadian border, leading to the closure of an interstate highway, evacuations and power outages.
A proverbial “fire hose” of moisture hit parts of Southcentral Alaska over the past several days, causing flooding in places like Girdwood and a landslide that closed the Sterling Highway.
Parts of Western Alaska recently saw their wettest month on record, and forecasters are expecting an atmospheric river to soak Southeast.
A veritable fire hose of moisture hit Southeast Alaska last week. It was a historic weather event, the likes of which we might see more often as Earth’s climate continues to warm.