This weekend, U.S. Coast Guard members plan to implement various safety and security zones on Lake Washington for upcoming Seattle Seafair activities on Aug. 5-7. Coast Guard crew members plan to partner with state and local agencies to bolster safety patrols on Lake Washington and implement a Special Local Regulation for the Unlimited Hydroplane Race on Lake Washington from 8 a.m. on Friday until midnight on Sunday. The USCG said it also plans to enforce the Seafair Air Show Performance Safety Zone Regulation on Lake Washington from 8 a.m. on Friday until 4 p.m. on Sunday. These zones will be…