John Medeiros, 46, was flown to Santa Rosa Memorial Hospital via REACH air ambulance following the crash, which occurred at 5:20 p.m. on Highway 20 west of Orchard Shores Drive in Clearlake Oaks, according to the California Highway Patrol.
Medeiros was riding his 1993 Harley Davidson motorcycle westbound on Highway 20 at approximately 55 miles per hour, while 39-year-old David Andrade of Clearlake was driving his 1975 Ford pickup eastbound, also at 55 miles per hour, according to a report prepared by CHP Officer Jake Bushey.
Bushey's report said that, for unknown reasons, Medeiros made an unsafe turn to the left which caused his motorcycle to enter the eastbound lane, directly in the path of Andrade's truck.
Andrade attempted to swerve to the right but couldn't avoid the collision, and Bushey's report said Medeiros' motorcycle hit the left side of Andrade's pickup.
Medeiros' motorcycle went under the left side of the pickup truck and hit the rear axle. He and the motorcycle came to rest in the westbound lane, Bushey's report stated, while Andrade's pickup ended up on the south shoulder of the highway facing westbound.
In addition to Medeiros' injuries, the collision also resulted in Andrade receiving minor injuries, Bushey said. Andrade was treated at the scene by Northshore Fire Protection District paramedics and was not transported to the hospital.
The report noted that both men were using safety equipment.
Drugs and alcohol are not considered as contributing factors to the collision, Bushey reported.
The collision is still under investigation, the report said.
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