Construction should start as soon as Wednesday at a site near Copalis Beach in Grays Harbor County on a Doppler radar station.
Sen. Maria Cantwell's office says it could be operating as soon as September, giving the National Oceanic and Atmospheric Administration (NOAA) a better look at Pacific storms heading for the Northwest.
The new radar will fill in information that is missing because the Olympic mountains block the only other Western Washington Doppler radar station on Camano Island.