ZCZC IE57 210230 UTC APR BALTIC SEA WEATHERFORECAST WEATHER SUMMARY: H CENTRED BETWEEN ICELAND AND UNITED KINGDOM EXTENDING IN OVER SCANDINAVIA AND L NEAR SPITZBERGEN MOV TOWARDS KOLA PENINSULA. FORECAST VALID 24 HOURS (WIND SCALE IN METERS PER SECOND) SKAGERRAK N-NE 2-7. IN AFTERNOON BACK W-NW. GOOD VIS. KATTEGAT LAKE VAENERN THE SOUND THE BELTS E-NE 1-6 TEMPO VRB. IN AFTERNOON BACK TO N-NW. GOOD VIS. WESTERN BALTIC SOUTHERN BALTIC NE 4-9. LATE AFTERNOON VRB 1-6. OVERNIGHT NW. GOOD VIS. SOUTHEASTERN BALTIC CENTRAL BALTIC GULF OF RIGA N 3-8. IN AFTERNOON NEAR SWEDISH COAST VRB 0-5. GOOD VIS. NORTHERN BALTIC SEA OF AALAND ARCHIPELAGO SEA N-NW 2-7 OVERNIGHT 5-10. GOOD VIS. GULF OF FINLAND N 1-6. IN AFTERNOON W-NW. GOOD VIS. SOUTHERN SEA OF BOTHNIA NORTHERN SEA OF BOTHNIA THE QUARK BAY OF BOTHNIA N-NW 2-7. IN AFTERNOON AT FIRST FM N VEER W AND INCR OVERNIGHT 6-11. GOOD VIS. NNNN