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SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 15, MAY 2025.

NATIONAL WEATHER SERVICE (NWS)

SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS

PART 1 GALE WARNING:

534/2025 STRONG BARIC GRADIENT PROVOKES WINDS FORCE 9 FROM SECTOR E WITH GUST IN 60S-64S 25W-48W UNTIL 15/2100

535/2025 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-68S 25W-48W FROM 15/2100

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 978HPA 68S 85W NOT MOV WKN

LOW 970HPA 60S 70W MOV S WKN

LOW 970HPA 62S 57W MOV SE INTSF

141400 UTC 1.SEA ICE LIMIT 6223S 02000W 6223S 02624W 6312S 03152W 6310S 03503W 6124S 03927W 6200S 04434W 6051S 04807W 6143S 05249W 6247S 05604W 6333S 06045W 6510S 06523W 6207S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5449S 03902W 40X32NM A76C 6056S 04822W 16X7NM A74A 6042S 05210W 30X18NM A77 6351S 05434W 27X4NM A23C 5426S 03407W 10X5NM 3.ICEBERGS SMALLER THAN 10NM A80A 6128S 05235W 8X5NM ICEBERG1 6102S 05055W 9X3NM ICEBERG2 5526S 03543W 2X1NM ICEBERG3 6132S 03735W 3X1NM ICEBERG4 5237S 03512W 4X1NM ICEBERG5 5517S 03401W 3X1NM ICEBERG6 5651S 03457W 4X1NM ICEBERG7 5503S 03720W 2X1NM ICEBERG8 5255S 03708W 6X2NM ICEBERG9 6040S 04845W 6X5NM ICEBERG10 6120S 04846W 3X1NM ICEBERG11 6331S 05357W 4X2NM ICEBERG12 5211S 03755W 2X1NM ICEBERG13 6122S 04900W 2X1NM ICEBERG14 5208S 03740W 3X1NM ICEBERG15 6323S 05348W 3X1NM 4.ICEBERGS AREA A: 6235S 02000W 4800S 02000W 4900S 03500W 6230S 03600W B: 6230S 03600W 5000S 03400W 5000S 04500W 6120S 04900W C: 6120S 04900W 5400S 04700W 5500S 06716W 6500S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-05-16

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 57W: E 4 INCR 8 WITH GUSTS BY 15/2100 PROB OF FOG MIST PROB OFHVY RAIN SNOW FALL VIS VERY POOR OCNL POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: VRB 4 VEER SE 5 WITH GUSTS BY 15/2100 PROB OF FOG MIST PROB OFHVY RAIN SNOW FALL VIS VERY POOR OCNL POOR

MAR DE LA FLOTA COASTS W OF 60W: NE 8 WITH GUSTS PROB OF MIST IMPR DURING THE MORNING PROB OFHVY RAIN SNOW FALL VIS VERY POOR OCNL POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: NE 8/9 WITH GUSTS DECR 5 BY 16/0600 PROB OF MIST IMPR DURING THE MORNING PROB OFHVY RAIN SNOW FALL VIS VERY POOR OCNL POOR

GERLACHE STRAIT : E 7/8 GUST WITH 9 INTENSITY DECR 5/4 BY 16/0000 PROB OF HVY RAIN SNOW FALL VIS VERY POOR OCNL POOR

MARGARITA BAY : SECTOR E 6/5 GUST WITH 8 INTENSITY DECR SE 5/4 BY 16/0600 LOW PROB OF ISOL SNOW FALL VIS MODERATE OCNL POOR

EREBUS Y TERROR GULF : S 7/8 WITH GUSTS PROB OF FOG IMPR PROB OFHVY SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR OCNL POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80W: SW 4/5 PROB OF MIST PROB OFSLIGHT ISOL SNOW FALL VIS MODERATE OCNL POOR

NORTHER BELLINGSHAUSEN SEA W OF 80 - N OF 65S: SECTOR S 4/5 VEER SW BY 15/1800 PROB OF FOG AND MIST IN PATCHES PROB OFSLIGHT ISOL SNOW FALL VIS MODERATE OCNL POOR

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SE 5/6 WITH GUSTS PROB OF FOG AND MIST IN PATCHES PROB OFSLIGHT ISOL SNOW FALL VIS MODERATE OCNL POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): E 3/4 VEER S BY 16/0900 PROB OF FOG AND MIST IN PATCHES PROB OFSLIGHT ISOL SNOW FALL VIS MODERATE OCNL POOR

NORTHERN WEDDELL SEA N OF 67S: SE 6/7 GUST WITH 8 INTENSITY INCR 8 GUST WITH 8 INTENSITY BY 15/2100 PROB OF MIST DISSIPATING TOWARDS THE END OF THE PERIOD PROB OFHVY SNOW FALL VIS POOR OCNL VERY POOR

NORTHERN WEDDELL SEA REST OF THE AREA: NE 4 BACK SE BY 16/0000 PROB OF ISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 4/5 VEER SW BY 15/1800 PROB OF ISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD=