SUBJ: SAFETY BROADCAST NOTICE TO MARINERSSEC STP BNM 0052-24CHARLOTTE HARBOR TO TAMPA BAYBIG SARASOTA PASS DBN 8 (LLNR 21500.8) IS RPTD DESTROYED.BIG SARASOTA PASS DBN 11A (LLNR 21510.5) IS RPTD DESTROYED.BIG SARASOTA PASS DBN 13 (LLNR 21515) IS RPTD DESTROYED.BIG SARASOTA PASS DBN 15 (LLNR 21525) IS RPTD DESTROYED.BIG SARASOTA PASS DBN 18 (LLNR 21577) IS RPTD DESTROYED.ALL MARINERS ARE REQUESTED TO EXERCISE CAUTION WHILE TRANSITTING THE AREA.CANCEL AT//142359Z MAR 24//BT#0001NNNN