UPDATE: Seattle is on high alert as the National Weather Service has just issued a hydrologic outlook warning of potential flooding due to a powerful atmospheric river targeting the region from October 27 through October 28, 2023. Heavy rainfall is expected, particularly impacting the Olympic Peninsula and parts of the Washington Cascades, with the Skokomish River forecasted to reach minor flood stage on Saturday.
Residents in Mason, Jefferson, Clallam, Whatcom, Skagit, Snohomish, and King counties are urged to stay vigilant as some rivers may exceed action stage throughout the weekend. The National Weather Service predicts rainfall amounts between 2 to 4 inches, with localized areas potentially receiving over 5 inches.
The heavy rains could exacerbate risks in areas with recent burn scars, increasing the chances of flash floods and debris flows, which could complicate emergency response efforts already strained by this severe weather. Urban areas, already saturated from recent downpours, are particularly vulnerable to nuisance flooding. Residents are advised to clear drains and gutters to minimize water accumulation.
As of now, Seattle’s weather sits at a brisk 45°F with humidity at 87%. Winds are calm, blowing southeast at 6 MPH. However, conditions are expected to change significantly later today, with rain expected to intensify after 2 PM and high temperatures rising to around 56°F.
Looking ahead, Seattleites must prepare for a prolonged period of wet weather; forecasts indicate a 100% chance of rain tonight with a low around 51°F and wind gusts potentially reaching 32 MPH. New rainfall amounts between 0.5 and 0.75 inches are also anticipated.
The National Weather Service emphasizes the importance of monitoring river forecasts closely, as this atmospheric river could signal the start of more severe weather conditions typical of the Pacific Northwest autumn.
Residents are urged to remain alert and take necessary precautions to ensure their safety as this situation develops. Stay tuned for updates as authorities continue to assess the impact of this incoming storm.
