Compose a news report detailing the upcoming weekend-long closure of the SR 18 on-ramp to westbound I-90 near Snoqualmie, starting Friday night, April 25. Highlight the time frame of the closure—9 p.m. Friday to 5 a.m. Monday—and discuss how this will impact local traffic and commuting patterns in the area. Be sure to include insights and recommendations for commuters navigating the affected routes during this time.