ZCZC JA52 231346 UTC SEP KALINGRAD NAV WARN 225/26 SOUTHEASTERN BALTIC SHIPS EXERCISES 302100 UTC SEP THRU 312100 UTC OCT AREA TEMPORARILY DANGEROUS TO SHIPPING 55-32.0N 019-01.6E 55-32.0N 019-50.0E 55-03.0N 019-35.0E 54-46.4N 019-35.0E 54-50.3N 019-20.3E 55-11.5N 019-09.2E 55-20.0N 019-04.6E CANCEL THIS MESSAGE 312200 UTC OCT NNNN