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U.S. Department of Homeland Security

District 11 Broadcast Notice to Mariners Message

Message Originator: San Diego

SAFETY / SOUTHERN CALIFORNIA / HAZ OPS / SEC SSD BNM 0139-25 /

1. UNDERWATER DETONATIONS WILL OCCUR WITHIN A 2363 YARD RADIUS OF POSN
32-35.82N,117-10.87W DETONATIONS WILL TAKE PLACE FROM 1500Z ON 27 AUG 2025 TO 2300Z ON 29 AUG 2025. MULTIPLE SHOTS OF LESS THAN 15 LB DEMO CHARGES WILL BE INITIATED AT 80 FEET.
2. ALL MARINERS ARE ADVISED TO STAY CLEAR OF THE AREA.
CANCEL AT//300100Z AUG 25//

BT