Western Washington Faces Flooding as Second Atmospheric River Approaches
Western Washington has been significantly affected by recent heavy rainfall, resulting in widespread flooding. Nearly two dozen rivers are currently under flood warnings, indicating that flooding is imminent or ongoing. Some of the rivers that have reached major flood stages include the Carbon, Cowlitz, Grays, and Snohomish rivers.
Flooding Warnings and Impact
The National Weather Service has issued a Flood Watch for King County, which will remain in effect through Friday. Many areas have experienced urban flooding, leading to hazardous driving conditions. The standing water has caused vehicles to hydroplane, particularly in downtown Seattle, where storm drains have become overwhelmed.
- Major river flood stages include:
- Carbon River
- Cowlitz River
- Grays River
- Nisqually River
- Snoqualmie River
- Puyallup River
Road closures have resulted from flooding and mudslides, with Interstate 5 closed near Napavine. Earlier, only on-and-off ramps were affected, but the disruption expanded as flooding worsened. Portions of State Route 202 and 203 are also impassable due to water accumulation.
Rescues and Safety Alerts
The Snohomish County Sheriff’s Office has reported several rescues of drivers stranded in floodwaters. Motorists are urged to heed authorities’ warnings about road conditions:
- Never drive around barriers on flooded roads.
- Six inches of fast-moving water can sweep away adults.
- A foot of water can carry away most vehicles.
In Monroe, multiple vehicles became trapped in high water, showcasing the dangers of attempting to navigate flood-affected areas.
Upcoming Weather Forecast
Forecasts indicate that a second atmospheric river, described as a “Pineapple Express,” will arrive Tuesday evening. This storm system will lead to increased precipitation and higher temperatures, raising snow levels significantly in the mountain regions. By early Wednesday, temperatures may reach the mid to upper 50s.
This warm surge is projected to contribute to further river flooding across central and western Washington. The Snoqualmie, Skagit, and Puyallup Rivers are at high risk of rising levels due to the combination of rain and melting snow.
Drivers are advised to remain cautious and informed as they navigate through low visibility and wet conditions. Showers are expected to persist into Thursday, and the weather may stabilize with clouds on Friday and Saturday, bringing some reprieve from the heavy rainfall.
