ZCZC JA27 251812 UTC MAR KALINGRAD NAV WARN 051/26 SOUTHEASTERN BALTIC SHIPS EXERCISES 312100 UTC MAR THRU 302100 UTC APR IN AREA TEMPORARILY DANGEROUS TO SHIPPING 55-32.00N 019-01.60E 55-32.00N 019-50.00E 55-03.00N 019-35.00E 54-46.40N 019-35.00E 54-50.30N 019-20.30E 55-11.50N 019-09.20E 55-20.00N 019-04.60E CANCEL THIS MESSAGE 302200 UTC APR NNNN