UPDATE: The National Weather Service (NWS) has issued a critical hydrologic outlook for Seattle as a powerful atmospheric river is set to unleash heavy rainfall from October 6 to 7, 2023. Residents are urged to prepare for potential flooding, with some areas expected to receive between 2 to 4 inches of rain, and localized spots possibly exceeding 5 inches.
Heaviest rainfall is anticipated across the Olympic Peninsula and parts of the Washington Cascades. Of particular concern, the Skokomish River is forecast to reach minor flood stage by Saturday. Residents in Mason, Jefferson, Clallam, Whatcom, Skagit, Snohomish, and King counties should remain vigilant as river levels are predicted to approach action stage over the weekend.
The NWS warns that areas with recent burn scars could face an increased risk of flash flooding and debris flows. This situation may complicate emergency response efforts as teams are already stretched thin managing multiple developing hazards. With urban ground saturated from prior rains, nuisance flooding is likely, prompting officials to remind residents to clear storm drains of leaves to prevent water accumulation.
As of now, Seattle is experiencing a brisk 45°F with humidity at 87%, and winds blowing southeast at 6 MPH. However, the forecast indicates that rainfall will intensify after 2 PM today, with high temperatures reaching a comfortable 56°F. Expect a 100% chance of rain tonight, with lows around 51°F and gusts potentially hitting 32 MPH.
This atmospheric river represents a significant shift in weather patterns for the Pacific Northwest, raising concerns about severe seasonal impacts. Local authorities advise everyone in affected areas to keep a close eye on river forecasts and prepare for worsening conditions.
As the situation evolves, stay tuned for further updates as emergency management teams work to monitor and respond to this urgent weather event. Share this information with others to ensure community safety as Seattle braces for this developing storm.
