Seattle is bracing for a weekend of significant rainfall, with the National Weather Service forecasting up to 3 inches of rain in some areas. This weather pattern, typical for the Pacific Northwest, poses a risk of localized flooding, particularly in low-lying areas and near rivers. Residents are urged to prepare for wet conditions and potential disruptions to travel and outdoor activities. The NWS advises homeowners to clear gutters and drivers to exercise caution on the roads due to reduced visibility and hydroplaning risks.