RedactedNarrative: Operator of Vessel #2 states that's he was operating vessel northbound in the Stapleton Channel along the right side in heavy fog. He was utilizing his navigation, radar, as well as crew on lookout on the bow of vessel. Operator of vessel #2 stated that he noticed a last second contact appear on his radar as "head on". He turned the vessel to port to avoid vessel #1 and this caused a glancing blow from the oncoming vessel #1 on his starboard side, IDed as an USCG buoy tender "Katherine Walker, causing an approximate 20-25 ft of damage to vessel #2 super structure. Ongoing USCG investigation.