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WWAA02 SAWB 211200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 21, MARCH 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

285/2025 LOW 961HPA AT 72S 38W MOV SE NOT CHANGE PROVOKES WINDS FORCE 8 WITH GUST IN 64S-72S 30W-57W UNTIL 22/0000

286/2025 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-66S 75W-90W FROM 22/0600 UNTIL 23/1100

287/2025 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-64S 30W-40W FROM 22/0000 UNTIL 22/1500

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 961HPA 72S 38W MOV SE WKN

HIGH 981HPA 68S 60W NOT MOV WKN

201400 UTC 1.SEA ICE LIMIT 7218S 02000W 7048S 03053W 6713S 03249W 6543S 04053W 6452S 04910W 6218S 04818W 6055S 05122W 6203S 05430W 6304S 05723W 6342S 06101W 6447S 06442W 6609S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5447S 03903W 40X32NM A23B 5638S 03809W 10X3NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6138S 05512W 9X3NM ICEBERG2 5526S 03543W 2X1NM ICEBERG3 6217S 04825W 8X3NM ICEBERG4 6240S 04322W 3X1NM ICEBERG5 6140S 05449W 2X1NM ICEBERG6 5626S 03803W 7X1NM ICEBERG7 6303S 04423W 2X1NM ICEBERG8 5633S 03820W 3X1NM ICEBERG9 5503S 03816W 3X1NM 4.ICEBERGS AREA A: 7300S 02000W 4212S 02000W 4554S 03454W 6606S 03506W B: 6606S 03506W 4954S 03654W 5000S 04500W 6606S 04512W C: 6606S 04512W 5654S 04454W 5706S 05503W 6312S 05506W D: 6312S 05506W 5903S 05512W 5906S 06716W 6454S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-03-22

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5 INCR SW 6 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE OCNL GOOD

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 5 INCR SECTOR W 6 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE OCNL GOOD

MAR DE LA FLOTA COASTS W OF 60W: SW 5 INCR SW 6 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE OCNL GOOD

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5 INCR SECTOR W 6 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE OCNL GOOD

GERLACHE STRAIT : SW 3 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE OCNL GOOD

MARGARITA BAY : NW 3 VEER NE 4 BY 22/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE OCNL GOOD

EREBUS Y TERROR GULF : NW 5 WITH GUSTS DECR VRB 2 BY 21/1500 INCR SW 5 WITH GUSTS BY 21/1800 VIS GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80W: SW 5 WITH GUSTS VEER NW 8 WITH GUSTS BY 22/0300 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE EARLY MORNING VIS MODERATE OCNL POOR

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5 WITH GUSTS VEER NW 8 WITH GUSTS BY 22/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE MORNING VIS MODERATE TO POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 5 DECR VRB 2 BY 22/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR

NORTHERN WEDDELL SEA N OF 64 - W OF 40W: NW 6 WITH GUSTS DECR VRB 2 BY 21/1500 INCR SECTOR W 7 WITH GUSTS BY 22/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO POOR

NORTHERN WEDDELL SEA N OF 64 - E OF 40W: NW 6 WITH GUSTS INCR NW 8 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO POOR

NORTHERN WEDDELL SEA REST OF THE AREA: NW 8 WITH GUSTS BACK SECTOR W 5 BY 22/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE END OF THE PERIOD VIS POOR OCNL MODERATE

SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 6 WITH GUSTS DECR SW 5 BY 22/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE END OF THE PERIOD VIS POOR OCNL MODERATE=