1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-11-12, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 476: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 WITH GUST IN DRAKE
AREA (55S- 60S AND 60W- 67W) FROM 13/0900
WARNING 475: STRONG BARIC GRADIENT MOV NE PROVOKES WINDS FORCE 8 FROM SW WITH
GUST BETWEEN 50S-60S AND 50W-60W UNTIL 13/0000
WARNING 474: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 WITH GUST IN
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) FROM 12/1800 UNTIL 13/1200
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1023HPA 47S 67W MOV NE INTSF43S 50W EXP BY 13/1200
CFNT AT 60S 26W 54S 30W 43S 48W MOV NE EXP 50S 20W |42S 25W 37S 40W BY 13/0600
121400 UTC 1.SEA ICE LIMIT 5409S 02000W 5352S 02618W 5441S 03217W 5704S 03757W
5916S 04317W 6131S 04814W 6256S 05247W 6221S 05654W 6231S 06033W 6400S 06337W
6506S 06559W 6528S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5532S 03431W 28X25NM
D33B 5516S 04001W 21X12NM D35 5945S 04338W 15X6 NM A83 5856S 04902W 12X7NM A85
5600S 04552W 10X3NM ICEBERG1 5604S 04558W 10X3NM 3.ICEBERGS SMALLER THAN 10NM
D32 5641S 03953W 9X6NM ICEBERG2 5057S 03815W 3X1NM ICEBERG3 5713S 04501W 5X3NM
ICEBERG4 5506S 04133W 2X1NM ICEBERG5 5809S 04522W 6X2NM ICEBERG6 6004S 04217W
2X1NM ICEBERG7 6003S 05021W 4X1NM ICEBERG8 6120S 06016W 4X1NM ICEBERG9 6143S
05358W 4X3NM ICEBERG10 5537S 03558W 2X1NM ICEBERG11 5454S 04450W 3X1NM ICEBERG12
6008S 04413W 6X2NM ICEBERG13 5943S 04118W 5X3NM ICEBERG14 6148S 05358W 5X3NM
4.ICEBERGS AREA A5442S 02000W 4900S 02000W 4621S 03500W 5752S 03500W B5752S
03500W 4621S 03500W 4954S 04500W 6040S 04500W C6040S 04500W 4954S 04500W 6057S
06716W 6751S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-11-13
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 3/4 VIS GOOD
OUTER RIO DE LA PLATA: NE 3/4 VIS GOOD
URUGUAY SOUTH EAST COASTS: NE 3/4 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 4 BACK SECTOR E 5/6 BY 12/1800
PROB OF COASTAL RAIN DURING THE EARLY MORNING VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): E 4/5 INCR 6/7 GUST WITH 8 INTENSITY
BY 12/1500 BACK NE BY 13/0000 PROB OF STORMS STARTING EVENING VIS GOOD TO POOR
PENINSULA DE VALDES COASTS(41S - 45S): E 6/7 BACK GUST WITH 8 INTENSITY BY
12/1500 BACK NE BY 13/0000 PROB OF STORMS STARTING EVENING VIS GOOD TO POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): NE 3/4 INCR 5 WITH GUSTS BY 12/2100 PROB
OF STORMS STARTING EVENING VIS GOOD TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SW 3/4 BACK SECTOR N 6/7 WITH GUSTS BY
12/1800 VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): NE 5/6 WITH GUSTS INCR 7 GUST WITH 8
INTENSITY BY 13/1200 VIS GOOD TO MODERATE
ISLAS MALVINAS COASTS: SW 5 VEER NW BY 13/0300 VIS GOOD OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W): NW 6 WITH GUSTS PROB OF ISOL RAIN STARTING
NIGTH VIS MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: NW 7 WITH GUSTS INCR 8 WITH
GUSTS BY 12/1800 PROB OF RAIN STARTING NIGTH VIS VERY POOR TO POOR
REST OF THE AREA: NW 7 WITH GUSTS BACK SW 6/7 WITH GUSTS BY 12/2100 PROB OF
RAIN IMPR TOWARDS NIGTH VIS VERY POOR TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SW 7/6 GUST WITH 8 INTENSITY
DECR 6/5 BY 13/0600 PROB OF ISOL RAIN DURING THE MORNING IMPR VIS MODERATE TO
GOOD
REST OF THE AREA: SECTOR S 5/4 BACK NE BY 13/0000 VIS POOR TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: NW 6/7 WITH GUSTS BACK W BY
12/1800 PROB OF RAIN NEXT IMPR DURING THE NIGTH VIS POOR TO MODERATE
REST OF THE AREA: W 6/7 WITH GUSTS BACK SW 7 GUST WITH 8 INTENSITY BY 13/0000
VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SW 6/7 WITH GUSTS VEER BY
13/0900 VIS POOR
REST OF THE AREA: SW 7/8 WITH GUSTS VEER W 6/7 WITH GUSTS BY 13/0000 PROB OF
ISOL RAIN TOWARDS THE END OF THE PERIOD VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7 GUST WITH 8 INTENSITY VEER NW 8
WITH GUSTS BY 13/0900 PROB OF ISOL RAIN VIS VERY POOR TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 12, NOVEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1297/2026 LOW 952HPA NORTHER BELLINGSHAUSEN SEA MOV SE WEAKENING WILL PROVOKE WINDS FORCE 9 WITH GUST IN 60S-70S 90W-80W FROM 12/0600 UNTIL 12/2100
1298/2026 STRONG BARIC GRADIENT MARGARITA BAY SOUTHERN BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 66S-71S 78W-68W FROM 12/2100
1299/2026 LOW 952HPA SOUTHERN BELLINGSHAUSEN SEA MOV SE WEAKENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN 65S-68S 90W-75W FROM 12/1500 UNTIL 13/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 951HPA 68S 89W MOV E WKN
RIDGE 61S 62W 63S 64W 65S 65W MOV E NC
LOW 963HPA 63S 31W MOV E WKN
111400 UTC 1.SEA ICE LIMIT 5409S 02000W 5352S 02618W 5441S 03217W 5704S 03757W 5916S 04317W 6131S 04814W 6256S 05247W 6221S 05654W 6231S 06033W 6400S 06337W 6506S 06559W 6528S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5533S 03432W 28X25NM D33B 5513S 04026W 21X12NM D35 5945S 04402W 15X6 NM A83 5858S 04915W 12X7NM A85 5602S 04541W 10X3NM ICEBERG1 5604S 04558W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5636S 03953W 9X6NM ICEBERG2 5059S 03836W 3X1NM ICEBERG3 5719S 04519W 5X3NM ICEBERG4 5506S 04133W 2X1NM ICEBERG5 5803S 04520W 6X2NM ICEBERG6 6004S 04217W 2X1NM ICEBERG7 6003S 05021W 4X1NM ICEBERG8 6120S 06016W 4X1NM ICEBERG9 6142S 05403W 4X3NM ICEBERG10 5537S 03558W 2X1NM ICEBERG11 5454S 04450W 3X1NM ICEBERG12 6008S 04413W 6X2NM ICEBERG13 5943S 04118W 5X3NM ICEBERG14 6141S 05410W 5X3NM 4.ICEBERGS AREA A5500S 02000W 5000S 02000W 5800S 03500W 4600S 03500W B6500S 05600W 5500S 05400W 5800S 03500W 4600S 03500W C6500S 05600W 5500S 05400W 6000S 06716W 6600S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-11-13
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 5/4 BACK SECTOR W 5/6 WITH GUSTS BY 12/1800 AFTERWARDS NW 6/5 WITH GUSTS BY 13/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EVENING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 5/6 VEER SECTOR W 5/4 BY 12/2100 AFTERWARDS NW 5/6 WITH GUSTS BY 13/0900 PROB OF MIST DISSIPATING DURING THE MORNING PROB OFSCT RAIN AND SNOW MIXTURE WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR N 4/3 BACK NW 4/5 BY 12/2100 AFTERWARDS NW 6/5 WITH GUSTS BY 13/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 6/5 WITH GUSTS VEER SECTOR W 5/4 BY 12/2100 AFTERWARDS NW 5/6 WITH GUSTS BY 13/0900 PROB OF ISOL MIST SNOW FALL IMPR DURING THE MORNING PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL GOOD
GERLACHE STRAIT : NE 5/6 WITH GUSTS BACK NW 5/4 BY 13/0000 AFTERWARDS SECTOR N 3/4 BY 13/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE OCNL POOR
MARGARITA BAY : NE 8/7 WITH GUSTS BACK SECTOR N 5/6 WITH GUSTS BY 12/2100 AFTERWARDS NW 5/4 BY 13/0900 PROB OF MIST PROB OFMOD SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
EREBUS Y TERROR GULF : SECTOR S 5/4 VEER SECTOR N 4/5 BY 12/1800 AFTERWARDS SECTOR N 3/4 BY 13/0600 PROB OF MIST DISSIPATING DURING THE MORNING VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: SECTOR W 8/6 WITH GUSTS DECR SECTOR W 5/4 BY 13/0000 AFTERWARDS SECTOR W 6/5 WITH GUSTS BY 13/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EVENING VIS MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 5/6 WITH GUSTS DECR NW 5/4 BY 13/0000 AFTERWARDS SECTOR S 5/6 WITH GUSTS BY 13/0900 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 8/7 WITH GUSTS VEER SECTOR W 6/7 BY 12/2100 AFTERWARDS SECTOR W 5/6 WITH GUSTS BY 13/0600 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
NORTHERN WEDDELL SEA W OF 35W: SECTOR S 5/4 VEER SECTOR W 4/3 BY 13/0000 AFTERWARDS SECTOR W 5/6 WITH GUSTS BY 13/0900 PROB OF MIST PROB OFSCT SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 5/6 WITH GUSTS VEER SE 5/6 WITH GUSTS BY 13/0000 AFTERWARDS SECTOR S 4/3 BY 13/0900 PROB OF MIST PROB OFSCT SNOW FALL IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SECTOR S 4/3 BY 13/0300 PROB OF ISOL SNOW FALL IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO GOOD=