WWAA02 SAWB 071200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 07, AUGUST 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 STORM WARNING:

842/2025 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV E PROVOKES WINDS FORCE 10 FROM NE WITH GUST IN 65S-73S 60W-90W UNTIL 07/2100

GALE WARNING:

839/2025 LOW 955HPA AT 67S 38W MOV NE WEAKENING PROVOKES WINDS FORCE 9 FROM SW IN 60S-67S 30W-52W UNTIL 08/0300

840/2025 LOW 950HPA AT 61S 30W MOV SE DEEPENING PROVOKES WINDS FORCE 9 FROM SECTOR W WITH GUST IN 60S-65S 20W-32W UNTIL 08/1800

841/2025 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE PROVOKES WINDS FORCE 9 WITH GUST IN 60S-68S 65W-90W

843/2025 LOW 946HPA AT 67S 90W MOV SE DEEPENING WILL PROVOKE WINDS FORCE 9 FROM SECTOR W WITH GUST IN 65S-73S 80W-90W FROM 07/1500 UNTIL 08/0600

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 950HPA 61S 30W MOV SE DPN

LOW 955HPA 67S 38W MOV NE WKN

LOW 946HPA 67S 90W MOV E DPN EXTENDS CFNT AT 67S 90W 60S 70W MOV SE

WFNT AT 73S 90W 67S 75W 60S 65W MOV SE

061400 UTC 1.SEA ICE LIMIT 5803S 02000W 5603S 02624W 5743S 02957W 5730S 03425W 5759S 03941W 5909S 04329W 5922S 04846W 6123S 05325W 6129S 05823W 6312S 06109W 6454S 06457W 6603S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5532S 03441W 40X32NM A23D 5215S 03658W 13X6NM A74A 5834S 04751W 27X17NM A77 6136S 05854W 27X4NM 3.ICEBERGS SMALLER THAN 10NM A23E 5444S 03419W 9X4NM A80A 6131S 05426W 8X4NM ICEBERG1 5526S 03408W 4X1NM ICEBERG2 5232S 03717W 2X1NM ICEBERG3 5154S 03258W 3X3NM ICEBERG4 5158S 02822W 2X1NM ICEBERG5 6106S 05202W 9X2NM ICEBERG6 5136S 02927W 2X1NM ICEBERG7 5754S 04238W 5X2NM ICEBERG8 5453S 03424W 3X2NM ICEBERG9 4912S 02901W 4X3NM ICEBERG10 5439S 03353W 3X1NM ICEBERG11 6105S 05701W 3X1NM ICEBERG12 5523S 03244W 3X1NM ICEBERG13 6119S 05844W 2X1NM 4.ICEBERGS AREA A: 5845S 02000W 4600S 02000W 4715S 03440W 5800S 03820W B: 5800S 03820W 5220S 03640W 5510S 05000W 6010S 05020W C: 5656S 05000W 5637S 05000W 6100S 06716W 6637S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-08-8

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: N 5 BACK NW 7/8 WITH GUSTS BY 07/1800 BACK W 5 BY 8/0900 PROB OF FOG AND MIST IN PATCHES PROB OFMOD HVY RAIN SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO VERY POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 7/8 WITH GUSTS VEER NW 5/6 BY 07/1800 INCR SECTOR W 7/8 WITH GUSTS BY 8/0300 PROB OF FOG AND MIST IN PATCHES DISSIPATING TOWARDS THE END OF THE PERIOD PROB OFMOD HVY RAIN SNOW FALL STARTING NIGTH VIS POOR TO GOOD

MAR DE LA FLOTA COASTS W OF 60W: N 5 BACK NW 7/8 WITH GUSTS BY 07/1800 BACK W 5 BY 8/0900 PROB OF FOG AND MIST IN PATCHES PROB OFMOD HVY RAIN SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO VERY POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SW 7/8 WITH GUSTS VEER NW 5/6 BY 07/1800 INCR SECTOR W 7/8 WITH GUSTS BY 8/0300 PROB OF FOG AND MIST IN PATCHES DISSIPATING TOWARDS THE END OF THE PERIOD PROB OFHVY RAIN SNOW FALL STARTING NIGTH VIS POOR TO GOOD

GERLACHE STRAIT : SW 4/5 VEER NW 7 GUST WITH 8 INTENSITY BY 07/1800 PROB OF MIST MOD HVY SNOW FALL STARTING EVENING VIS MODERATE TO VERY POOR

MARGARITA BAY : E 4 VEER SECTOR N 8/10 BY 07/1500 BACK NW 4/5 BY 8/0300 PROB OF MIST PROB OFMOD HVY SNOW FALL STARTING EVENING VIS MODERATE TO VERY POOR

EREBUS Y TERROR GULF : SW 4 BACK SECTOR N 5/4 BY 07/1500 AFTERWARDS 7 GUST WITH 8 INTENSITY BY 8/0300 PROB OF MIST PROB OFMOD HVY SNOW FALL DURING THE EARLY MORNING VIS MODERATE TO VERY POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA (60-66S 70-90W): SECTOR W 8/9 WITH GUSTS PROB OF MIST PROB OFMOD HVY SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 10 WITH GUSTS BACK NW BY 07/1800 AFTERWARDS SECTOR N 4/5 BY 8/0600 PROB OF MIST PROB OFHVY SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR OCNL VERY POOR

NORTHERN WEDDELL SEA N OF 65S: SECTOR W 9/8 WITH GUSTS PROB OF MIST PROB OFMOD ISOL SNOW FALL VIS MODERATE OCNL POOR

NORTHERN WEDDELL SEA REST OF THE AREA: SW 7 WITH GUSTS BACK S 4/5 BY 8/0300 PROB OF MIST PROB OFMOD ISOL SNOW FALL VIS MODERATE OCNL POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR W 6 WITH GUSTS DECR S 4/5 BY 07/1800 PROB OF MIST FOG PATCHES STARTING EARLY MORNING PROB OFISOL SNOW FALL VIS MODERATE TO GOOD OCNL POOR=