ZCZC FA47 231414 UTC SEP PETERSBURG NAV WARN 203/26 COASTAL WARNING PETERSBURG EASTERN GULF OF FINLAND SHIPS EXERCISES 302100 UTC SEP THRU 312100 UTC OCT IN AREA TEMPORARILY DANGEROUS TO SHIPPING 60-00.50N 027-16.50E 60-05.40N 027-34.00E 59-53.00N 027-48.00E 59-48.00N 027-31.00E CANCEL THIS MESSAGE 312200 UTC OCT NNNN