ZCZC FA76 120903 UTC APR BALTIC SEA NAV WARN 024/26. NAVAL EXERCISES (WITHOUT FIRINGS) 172100 TO 282100 UTC APR 26 IN AREA DANGEROUS TO NAVIGATION BOUNDED BY 57-37.5N 020-05.6E 57-27.1N 020-35.5E 56-54.0N 019-56.1E 57-04.9N 019-25.9E. NNNN