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WWAA02 SAWB 221200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 22, MARCH 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

291/2025 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT NORTHERN WEDDELL SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-64S 30W-60W UNTIL 23/0600

292/2025 LOW 981HPA AT 66S 87W MOV NE WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-65S 60W-90W UNTIL 23/1200

293/2025 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV NE NOT CHANGE WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-64S 80W-90W FROM 23/0300 UNTIL 24/0900

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 981HPA 66S 87W MOV NE DPN

LOW 975HPA 66S 30W MOV NE DPN

RIDGE 60S 70W 64S 68W 68S 66W MOV NE 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 2025-03-23

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 8 WITH GUSTS PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE EVENING VIS MODERATE TO POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 8 WITH GUSTS PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE NIGTH VIS MODERATE TO POOR

MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 8 WITH GUSTS PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE EVENING VIS MODERATE TO POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 8 WITH GUSTS DECR SECTOR W 5 WITH GUSTS BY 23/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE NIGTH VIS MODERATE TO POOR

GERLACHE STRAIT : VRB 2 INCR NE 6 BY 22/1800 VEER SE 3 BY 23/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EVENING VIS POOR TO GOOD

MARGARITA BAY : NE 4 DECR NE 2 BY 22/2100 INCR NE 4 BY 23/0600 PROB OF ISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE

EREBUS Y TERROR GULF : SW 5 VEER SECTOR N 3 BY 22/1800 VEER SECTOR W 3 BY 23/0300 PROB OF FOG MIST WORSENING STARTING THE MIDDLE OF THE PERIOD VIS GOOD TO POOR OCNL MODERATE

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80W: SECTOR W 8 WITH GUSTS DECR VRB 2 BY 23/0000 INCR SECTOR W 9 WITH GUSTS BY 23/0300 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR OCNL MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 8 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 22/1500 DECR VRB 2 BY 23/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR OCNL MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): VRB 2 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING THE MIDDLE OF THE PERIOD VIS POOR TO MODERATE

NORTHERN WEDDELL SEA N OF 64 - W OF 40W: SECTOR W 8 WITH GUSTS VEER NW 5 WITH GUSTS BY 23/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE END OF THE PERIOD VIS MODERATE TO POOR

NORTHERN WEDDELL SEA N OF 64 - E OF 40W: SECTOR W 8 WITH GUSTS VEER NW 6 WITH GUSTS BY 23/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE START OF THE PERIOD VIS POOR TO MODERATE

NORTHERN WEDDELL SEA REST OF THE AREA: SW 5 WITH GUSTS PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE END OF THE PERIOD VIS MODERATE OCNL GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 5 WITH GUSTS PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING THE END OF THE PERIOD VIS MODERATE OCNL GOOD=