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WWAA02 SAWB 171200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 17, MARCH 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

261/2025 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV SE NOT CHANGE WILL PROVOKE WINDS FORCE 8 FROM NE WITH GUST IN 60S-72S 58W-35W FROM 17/1500 UNTIL 19/1100

262/2025 LOW 966HPA AT 60S 72W MOV SE DEEPENING PROVOKES WINDS FORCE 8 AROUND ITSELF WITH GUST IN 60S-65S 73W-58W UNTIL 19/0000

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 966HPA 60S 72W MOV SE DPN

LOW 991HPA 66S 36W MOV NE WKN

RIDGE 60S 45W 66S 45W 72S 45W MOV E NC

161400 UTC 1.SEA ICE LIMIT 7156S 02000W 6756S 03519W 6333S 04740W 6227S 04807W 6130S 05317W 6155S 05403W 6221S 05617W 6301S 05528W 6304S 05723W 6329S 05933W 6356S 06217W 6602S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5447S 03904W 40X32NM A23B 5647S 03851W 10X3NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6149S 05547W 9X3NM ICEBERG2 5526S 03543W 2X1NM ICEBERG3 6218S 04852W 8X3NM ICEBERG4 6248S 04350W 3X1NM ICEBERG5 6142S 05516W 2X1NM ICEBERG6 5650S 03844W 7X1NM ICEBERG7 5527S 03705W 5X1NM ICEBERG8 6306S 04506W 2X1NM 4.ICEBERGS AREA A: 4100S 02000W 7230S 02000W 7100S 03500W 4600S 03500W B: 5900S 05900W 6130S 05100W 6200S 03500W 4900S 03500W C: 5900S 05900W 6130S 05100W 6900S 06716W 5900S 06716W D: 7100S 03400W 6600S 05000W 6130S 05100W 6200S 03500W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-03-18

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 8 WITH GUSTS BACK SECTOR N 8 WITH GUSTS BY 17/1500 BACK SECTOR W 8 WITH GUSTS BY 17/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 5 WITH GUSTS INCR SECTOR N 8 WITH GUSTS BY 17/1500 BACK SECTOR W 8 WITH GUSTS BY 18/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE END OF THE PERIOD VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS W OF 60W: NE 8 WITH GUSTS BACK SECTOR N 8 WITH GUSTS BY 17/1500 BACK SECTOR W 8 WITH GUSTS BY 17/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 5 WITH GUSTS INCR SECTOR N 8 WITH GUSTS BY 17/1500 BACK SECTOR W 8 WITH GUSTS BY 18/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE END OF THE PERIOD VIS POOR TO MODERATE

GERLACHE STRAIT : NE 6 WITH GUSTS INCR NE 7 WITH GUSTS BY 17/1800 BACK SECTOR W 5 BY 18/0600 PROB OF FOG MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING THE MIDDLE OF THE PERIOD VIS POOR TO MODERATE

MARGARITA BAY : NE 6 WITH GUSTS DECR NE 4 BY 17/1500 PROB OF INTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING THE MIDDLE OF THE PERIOD VIS GOOD TO MODERATE

EREBUS Y TERROR GULF : SECTOR N 8 WITH GUSTS INCR SECTOR N 9 WITH GUSTS BY 17/1800 BACK NW 6 WITH GUSTS BY 18/0900 PROB OF FOG MIST PROB OFINTERMITTENT SNOW FALL PROB OF COASTAL BLIZZARD SPELLS OF GOOD WEATHER VIS MODERATE TO POOR OCNL VERY POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80W: SECTOR W 7 WITH GUSTS DECR SECTOR W 5 BY 18/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 8 WITH GUSTS VEER SECTOR W 7 BY 17/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE NIGTH VIS POOR TO MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 5 VEER SECTOR E 5 BY 17/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD

NORTHERN WEDDELL SEA N OF 64 - W OF 40W: NW 6 WITH GUSTS VEER SECTOR N 8 WITH GUSTS BY 17/1800 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR

NORTHERN WEDDELL SEA N OF 64 - E OF 40W: NW 6 WITH GUSTS DECR VRB 3 BY 17/2100 INCR SECTOR N 8 WITH GUSTS BY 18/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: VRB 3 INCR NE 8 WITH GUSTS BY 18/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): NW 3 VEER SECTOR N 4 BY 17/1500 VEER NE 8 WITH GUSTS BY 18/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR=