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WWAA02 SAWB 231200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 23, MARCH 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

297/2025 STRONG BARIC GRADIENT ON NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 9 WITH GUST BACK SECTOR W GUST WITH 10 INTENSITY IN 60S-65S 70W-90W UNTIL 24/0900

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 963HPA 65S 90W MOV SE DPN

LOW 978HPA 61S 48W MOV SE DPN

LOW 979HPA 68S 58W MOV E WKN

HIGH 982HPA 68S 75W MOV E WKN EXTENDS RIDGE AT 68S 75W 64S 65W 60S 64W MOV E

221400 UTC 1.SEA ICE LIMIT 7212S 02000W 7108S 02909W 6829S 03049W 6602S 03408W 6634S 04059W 6600S 04757W 6333S 04610W 6222S 04925W 6149S 05133W 6251S 05559W 6350S 06142W 6555S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5448S 03902W 40X32NM A23B 5623S 03755W 10X3NM A76C 6218S 05315W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6135S 05449W 9X3NM ICEBERG2 5525S 03544W 2X1NM ICEBERG3 6220S 04808W 8X3NM ICEBERG4 6238S 04319W 3X1NM ICEBERG5 6142S 05438W 2X1NM ICEBERG6 5631S 03804W 7X1NM ICEBERG7 6303S 04423W 2X1NM ICEBERG8 5632S 03744W 3X1NM ICEBERG9 5503S 03816W 3X1NM 4.ICEBERGS AREA A: 7300S 02000W 5600S 02000W 5654S 04000W 6600S 03900W B: 6600S 03900W 5600S 04000W 5600S 05240W 6200S 05300W C: 5500S 02015W 4200S 02000W 4400S 04000W 5500S 04000W D: 6200S 05300W 5700S 05200W 5740S 06650W 6400S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-03-24

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 6/5 VEER NW 7/8 GUST WITH 9 INTENSITY BY 23/1800 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING TOWARDS NOON VIS MODERATE TO POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 7/5 WITH GUSTS INCR NW 8 WITH GUSTS BY 24/0000 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE EVENING VIS MODERATE TO POOR

MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 6/5 VEER NW 7/8 GUST WITH 9 INTENSITY BY 23/1800 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING TOWARDS NOON VIS MODERATE TO POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: NW 4/5 WITH GUSTS VEER NE 5 WITH GUSTS BY 24/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING SLOWLY DURING THE EVENING VIS MODERATE TO POOR

GERLACHE STRAIT : NE 4/5 BACK SW 4/5 BY 24/0300 VIS GOOD

MARGARITA BAY : SE 3/4 VEER SW 3 BY 24/0300 PROB OF ISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD

EREBUS Y TERROR GULF : SW 3/4 VEER NW 4 BY 23/1500 AFTERWARDS SW 4/5 BY 24/0900 PROB OF FOG MIST WORSENING SLOWLY TOWARDS NIGTH VIS GOOD TO MODERATE OCNL VERY POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 65 - W OF 80W: NW 8 GUST WITH 9 INTENSITY INCR SECTOR W 9 WITH GUSTS BY 23/1500 AFTERWARDS SW 7/5 BY 24/0300 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR OCNL MODERATE

NORTHER BELLINGSHAUSEN SEA N OF 65 - E OF 80W: NW 8 GUST WITH 9 INTENSITY INCR SECTOR W 9 WITH GUSTS BY 23/1800 AFTERWARDS SW 7/5 BY 24/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR OCNL MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR E 4/5 VEER SE 5 WITH GUSTS BY 23/1800 VEER SECTOR S 5/6 BY 24/0000 VIS POOR OCNL MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 4 VEER SW 4/5 BY 24/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA N OF 64 - W OF 40W: NW 6 WITH GUSTS VEER NE 4/3 BY 23/1500 AFTERWARDS SECTOR S 3 BY 24/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA N OF 64 - E OF 40W: SECTOR W 6/5 WITH GUSTS VEER NE 3/4 BY 23/1800 AFTERWARDS SE 4/5 BY 24/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: SW 5/4 WITH GUSTS VEER SECTOR W 3/4 BY 24/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE NOON VIS MODERATE TO GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 5/6 WITH GUSTS INCR NE 7 GUST WITH 8 INTENSITY BY 24/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS MODERATE OCNL POOR =