Warm rains combined with high winds have created a significant weather event across Western Washington, with renewed concerns about rising river levels. This atmospheric river is predicted to deliver heavy rainfall on Monday and Tuesday, following a brief respite where most rivers had receded. Officials are closely monitoring the situation, as several rivers are expected to experience elevated water levels.
Current Weather Conditions
Most river levels in the region are below flood stage, but forecasts indicate that the Skagit, Skykomish, Snoqualmie, and Snohomish Rivers may rise to moderate flood levels by Wednesday. Meanwhile, the Stillaguamish, Skookumchuck, and Cowlitz Rivers are expected to surpass minor flood levels. The White and Green Rivers are projected to remain above flood stage throughout the week.
Impacts of the Current Storm
Alongside the rain, wind gusts ranging from 40 to 55 mph are anticipated along the coast. Inland, gusts may peak between 30 and 50 mph, particularly in the northern areas, while gusts in Seattle and surrounding cities should reach 25 to 45 mph. Given the saturated soils, this wind is likely to down trees and power lines, increasing the risk of power outages.
- Coastal wind gusts: 40 to 55 mph
- North interior wind gusts: 30 to 50 mph
- Western Washington urban gusts: 25 to 45 mph
Looking Ahead
After this storm passes, a significant shift in the weather pattern is expected mid-week. A cooler air mass from the Gulf of Alaska will arrive, bringing snow levels down to about 2,500 feet. As a result, the region may see two to four feet of fresh snow in the mountains by Thursday.
Long-Term Forecast
The upcoming weather conditions for Christmas Day and the end of the month suggest a continuation of cooler and wetter-than-average weather. While the lowlands may not experience snow, the mountains are likely to offer a wintery landscape, appealing to those hoping for a white Christmas.
As the region navigates through these weather challenges, it is recommended to stay updated on river conditions through NOAA’s National Water Prediction Service. Proper precautions are advised for anyone traveling in affected areas, particularly across Cascade highways, where winter driving conditions are likely.
