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WWAA02 SAWB 311200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 31, MARCH 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

322/2025 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR S GUST WITH 9 INTENSITY IN 60S-64S 80W-90W UNTIL 01/0300

323/2025 STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 9 FROM SECTOR S GUST WITH 10 INTENSITY IN 60S-65S 30W-45W FROM 31/2100

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 988HPA 61S 87W MOV NE DPN

RIDGE 60S 70W 67S 70W MOV E

LOW 985HPA 75S 20W MOV N WKN

301400 UTC 1.SEA ICE LIMIT 7139S 02000W 7032S 02622W 6817S 02832W 6547S 03052W 6510S 03730W 6527S 04311W 6425S 04417W 6203S 04828W 6136S 05339W 6300S 05912W 6405S 06418W 6547S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5449S 03902W 40X32NM A23B 5641S 03747W 10X2NM A76C 6159S 05226W 16X7NM A74A 6257S 05328W 30X18NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6137S 05425W 9X3NM ICEBERG2 5525S 03545W 2X1NM ICEBERG3 6225S 04642W 8X3NM ICEBERG4 6221S 04240W 3X1NM ICEBERG5 6140S 05832W 2X1NM ICEBERG6 5650S 03535W 7X1NM ICEBERG7 6243S 04247W 2X1NM ICEBERG8 5632S 03451W 3X1NM ICEBERG9 6227S 05512W 2X1NM ICEBERG10 5643S 03752W 4X1NM ICEBERG11 5449S 03752W 3X1NM ICEBERG12 5500S 03756W 2X1NM 4.ICEBERGS AREA A: 7250S 02000W 4300S 02000W 4300S 02300W 7442S 02300W B: 7442S 02300W 5300S 02300W 5000S 03200W 5400S 04100W 6612S 04100W C: 6612S 04100W 6000S 04100W 5600S 05000W 6302S 06716W 6638S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-4-1

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/3 VEER SECTOR E 3/4 BY 1/0300 LOW PROB OF SH OF SNOW VIS GOOD OCNL MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: VRB 3 BACK SECTOR S 4 BY 31/1800 PROB OF MIST LOW PROB OFISOL SNOW FALL VIS GOOD OCNL MODERATE

MAR DE LA FLOTA COASTS: SW 4/3 INCR 5 BY 1/0900 LOW PROB OF SH OF SNOW VIS GOOD OCNL MODERATE

GERLACHE STRAIT : SW 4/3 INCR 5 BY 1/0900 LOW PROB OF SH OF SNOW VIS GOOD OCNL MODERATE

MARGARITA BAY : SW 3 LOW PROB OF SH OF SNOW VIS GOOD OCNL MODERATE

EREBUS Y TERROR GULF : SECTOR S 5 WITH GUSTS PROB OF MIST IMPR TOWARDS NIGTH PROB OF SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80W: S 7/8 WITH GUSTS DECR 7/5 BY 1/0300 PROB OF HVY RAIN FROM 31/1800 IMPR VIS VERY POOR TO MODERATE

NORTHER BELLINGSHAUSEN SEA (60-66S 70-90W): W 4/3 VEER SE 5/6 BY 1/0000 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE

SOUTHERN BELLINGSHAUSEN SEA W OF 80W: SECTOR S 6/4 WITH GUSTS PROB OF ISOL SNOW FALL VIS GOOD OCNL MODERATE

SOUTHERN BELLINGSHAUSEN SEA REST OF THE AREA: VRB 3 VEER SECTOR S 4/5 BY 31/1800 PROB OF ISOL SNOW FALL VIS GOOD OCNL MODERATE

NORTHERN WEDDELL SEA W OF 45W: SECTOR E 4/5 VEER S 6 WITH GUSTS BY 31/2100 PROB OF MIST FOG PATCHES IMPR TOWARDS THE END OF THE PERIOD PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA E OF 30W: SECTOR E 5/7 GUST WITH 8 INTENSITY VEER NW 6/7 WITH GUSTS BY 31/0900 PROB OF ISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 5/6 WITH GUSTS VEER SECTOR S 9 WITH GUSTS BY 31/2100 PROB OF FOG AND MIST IN PATCHES PROB OF SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

SOUTHERN WEDDELL SEA W OF 40W: SECTOR S 3/4 VIS GOOD

SOUTHERN WEDDELL SEA REST OF THE AREA: SECTOR N 3/4 VEER SECTOR E BY 1/0600 PROB OF FOG AND MIST IN PATCHES PROB OF SNOW FALL STARTING EARLY MORNING VIS MODERATE=