An Atmospheric River Eyeballs The Pacific Northwest

news image
Top Stories
5 Apr 2019 2:41 PM
An elongated, steady stream of moisture commonly referred to as an 'atmospheric river' is forecast to arrive at the Pacific Northwest coastline this weekend. Infrared Satellite imagery Friday afternoon, April 5th showing the current cold front and associated moisture (yellows) followed by the next atmospheric river (left). Late this week, the river of moisture across the Pacific was still well out to sea. It will arrive quickly by Saturday night or early Sunday morning. The moisture levels indicated Friday afternoon, April 5th. The forecast position of the higher moisture levels (green) by Saturday evening, April 6th. First up will be Oregon, far southern Washington as well as far northern California on Saturday evening. This will translate to another batch of heavy rain showers and mountain snow showers Saturday night. Another steady stream of moisture will reinforce those rain/snow showers on Sunday and even into Monday for the Pacific Northwest. Forecast rainfall through Monday, April 8th where yellow shows up to 3", orange up to 4" and maroon up to 5" by the end of the week. A flood watch (green) is in effect between Saturday and Monday, April 6th-8th for potential flooding. As a result of the heavy rain, a flood watch has been issued for southwest Oregon and northwest California. That means there is the potential for river flooding and street flooding. Remember: Turn Around, Don't Drown! With some snow still left to melt and the incoming rain, flooding will be a possibility across parts of the Northwest. Portland, Oregon's forecast between Saturday, April 6th and Thursday, April 11th For WeatherNation, Meteorologist Steve Glazier
All Weather News
More
Dangerously Cold Temps Spill Into the Lower 48 Late This Week

Dangerously Cold Temps Spill Into the Lower 48 Late This Week

During the winter months, many of us are no s

22 Jan 2026 11:30 PM
Rare Winter Storm Threatens Over 130 Million

Rare Winter Storm Threatens Over 130 Million

A rare winter storm is expected to impac

22 Jan 2026 11:20 PM
Rain and Snow Return to the Southwest

Rain and Snow Return to the Southwest

For much of this winter season, the Southwest

22 Jan 2026 11:20 PM
Snow Continues for the Great Lakes, Northeast

Snow Continues for the Great Lakes, Northeast

A clipper system continues to shift across th

22 Jan 2026 8:50 PM
Cold Stuns Iguanas as Another Cold Snap Reaches South Florida

Cold Stuns Iguanas as Another Cold Snap Reaches South Florida

Sub-freezing temperatures made their way into

20 Jan 2026 10:30 AM
Dangerous Cold follows Weekend Blizzard Conditions in the Northern Plains

Dangerous Cold follows Weekend Blizzard Conditions in the Northern Plains

MONDAY AM UPDATE: WEEKEND SNOW TOTALS: MERCER

19 Jan 2026 11:00 AM
Snow Totals from the Weekend Snow that Targeted I-95 From Virginia through New England

Snow Totals from the Weekend Snow that Targeted I-95 From Virginia through New England

MONDAY AM UPDATE: WInter Weather advisories a

19 Jan 2026 9:10 AM