ZCZC AA87 080940 UTC AUG 25 COASTAL WARNING NOVOROSSIYSK 346 BLACK SEA GUNNERY FIRING EXERCISES FROM 082100 UTC AUG 25 NAVIGATION TEMPORARILY DANGEROUS IN AREA BOUNDED BY 45-07-19.0N 035-30-56.6E 45-05-14.0N 035-34-13.5E 45-04-17.0N 035-30-11.6E 45-06-58.0N 035-29-41.0E AND COASTLINE NNNN