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SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 17, MAY 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

539/2025 STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-70S 20W-30W UNTIL 18/1200

540/2025 STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 9 FROM SE WITH GUST IN 60S-64S 45W-67W FROM 18/0600

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 996HPA 62S 68W MOV NW WKN

RIDGE 60S 90W 65S 83W 70S 98W NOT MOV INTSF

161400 UTC 1.SEA ICE LIMIT 6145S 02000W 6201S 02515W 6259S 03132W 6337S 03654W 6133S 03750W 6126S 04223W 6205S 04626W 6041S 05036W 6216S 05435W 6320S 05943W 6414S 06355W 6600S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5448S 03901W 40X32NM A76C 6054S 04816W 16X7NM A74A 6034S 05153W 30X18NM A77 6352S 05422W 27X4NM A23C 5413S 03420W 10X5NM 3.ICEBERGS SMALLER THAN 10NM A80A 6125S 05239W 8X5NM ICEBERG1 6102S 05112W 9X3NM ICEBERG2 5525S 03543W 2X1NM ICEBERG3 6132S 03735W 3X1NM ICEBERG4 5249S 03450W 4X1NM ICEBERG5 5410S 03405W 3X1NM ICEBERG6 5651S 03457W 4X1NM ICEBERG7 5503S 03720W 2X1NM ICEBERG8 5255S 03708W 6X2NM ICEBERG9 6044S 04838W 6X5NM ICEBERG10 6121S 04835W 3X1NM ICEBERG11 6327S 05358W 4X2NM ICEBERG12 5220S 03806W 4X1NM ICEBERG13 6123S 04907W 2X1NM ICEBERG14 5228S 03759W 3X1NM ICEBERG15 6313S 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 2025-05-18

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT : SE 4/6 INCR 8/9 WITH GUSTS BY 18/0600 PROB OF MIST FOG PATCHES DISSIPATING TOWARDS THE END OF THE PERIOD PROB OFHVY SNOW FALL TOWARDS THE END OF THE PERIOD VIS VERY POOR TO GOOD

MAR DE LA FLOTA COASTS W OF 61W: NE 4/5 VEER SECTOR S BY 18/0900 PROB OF MIST DISSIPATING DURING THE EARLY MORNING PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO GOOD

MAR DE LA FLOTA COASTS REST OF THE AREA: NE 5/4 GUST WITH 8 INTENSITY VEER SE 8/9 WITH GUSTS BY 18/0300 PROB OF MIST DISSIPATING TOWARDS THE END OF THE PERIOD PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO GOOD

GERLACHE STRAIT : E 3 PROB OF SLIGHT SNOW FALL DURING THE EVENING VIS GOOD OCNL MODERATE

MARGARITA BAY : SECTOR E 4/3 VEER S BY 17/1200 PROB OF MIST DISSIPATING DURING THE NIGTH VIS POOR TO GOOD

EREBUS Y TERROR GULF : S 4 INCR 5/6 BY 18/0300 PROB OF FOG MIST DISSIPATING DURING THE EVENING VIS VERY POOR TO GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 30W: SECTOR W 4 VEER SECTOR N 4/5 BY 18/0000 PROB OF MIST FOG PATCHES PROB OFISOL SNOW FALL VIS VERY POOR OCNL POOR

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR S 5/4 PROB OF MIST FOG PATCHES PROB OFSLIGHT ISOL SNOW FALL VIS MODERATE OCNL POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 5 WITH GUSTS PROB OF MIST PROB OFSLIGHT ISOL SNOW FALL VIS MODERATE OCNL POOR

NORTHERN WEDDELL SEA N OF 63 - W OF 37W: SW 4 BACK E 9 BY 18/0600 PROB OF MIST PROB OFMOD HVY SNOW FALL TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR OCNL VERY POOR

NORTHERN WEDDELL SEA S OF 63 - W OF 37W: SW 3 INCR 4/5 BY 17/1500 PROB OF MIST VIS POOR TO MODERATE

NORTHERN WEDDELL SEA REST OF THE AREA: SW 8 WITH GUSTS DECR 6/5 WITH GUSTS BY 18/0900 VIS GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 5 VIS GOOD=