Event narrative (NOAA)
Four apartment buildings were evacuated in North Seattle, where some basement apartments had 3 feet of water in them. About 30 people were evacuated from apartments in Woodinville. Many roads were closed, including parts of SR 522, water over I-405 led to heavy traffic all day. About 20 roads were damaged throughout the county. Nearly 5 inches of rain fell at SeaTac airport. Nathan Hale High School in north Seattle was closed for a week due to water damage from Thorton Creek for the first time ever. A few homes and businesses had water damage.
Other notable heavy rain events in Washington
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.