1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-10-04, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 448: LOW 1000HPA AT 34S 50W MOV SE DEEPENING EXPECTED 42S 40W BY 05/1200
PROVOKES WINDS FORCE 8 FROM SECTOR N WITH GUST BETWEEN 35S-40S AND 35W-50W
WARNING 447: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SW WITH
GUST BETWEEN 35S-60S AND 20W-30W UNTIL 05/0300
PART 2 GENERAL SYNOPSIS AT 09:00UTC
041400 UTC 1.SEA ICE LIMIT 5513S 02000W 5400S 02618W 5505S 03217W 5704S 03757W
5811S 04316W 5925S 04814W 6122S 05247W 6008S 05654W 5831S 06032W 5901S 06337W
6022S 06559W 6050S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5525S 04129W 28X25NM
D33B 5803S 04737W 21X12NM A76C 5604S 02509W 17X6NM A83 6039S 05153W 12X7NM A85
5859S 05058W 10X3NM ICEBERG1 5834S 05002W 10X3NM 3.ICEBERGS SMALLER THAN 10NM
D32 5625S 03837W 9X6NM D33C 6147S 05426W 9X5NM ICEBERG2 5513S 04145W 5X3NM
ICEBERG3 5937S 04609W 5X3NM ICEBERG4 5503S 04634W 4X3NM ICEBERG5 5635S 04527W
3X1NM ICEBERG6 5835S 05012W 3X2NM ICEBERG7 5848S 04914W 2X1NM ICEBERG8 5917S
05102W 6X2NM 4.ICEBERGS AREA A5727S 02000W 5000S 02000W 5000S 04100W 5806S
04959W B5806S 04959W 5200S 04100W 5200S 04700W 5852S 04700W C5852S 04700W 5600S
04700W 5900S 06717W 6118S 06717W
LOW 1000HPA 34S 50W MOV SE DPN
LOW 998HPA 50S 62W MOV SE EXP 53S 52W BY 05/1200
HIGH 1029HPA 42S 38W MOV NE INTSF EXP 35S 25W BY 05/1200
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-5
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3 VEER SECTOR N BY 04/1500 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR S 4/3 VEER SECTOR N BY 04/1500 FOG DISSIPATING
DURING THE MORNING VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SW 5/3 WITH GUSTS BACK SECTOR N BY 5/0000 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 3/4 WITH GUSTS PROB OF ISOL RAIN
TOWARDS THE END OF THE PERIOD FOG DISSIPATING DURING THE MORNING VIS MODERATE TO
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5/4 WITH GUSTS PROB OF ISOL
RAIN TOWARDS NIGTH VIS GOOD TO MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5/4 WITH GUSTS PROB OF ISOL
RAIN STARTING EVENING VIS GOOD TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 4/3 WITH GUSTS BACK SECTOR S 4
WITH GUSTS BY 04/1500 PROB OF RAIN STARTING EVENING VIS GOOD TO MODERATE OCNL
POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 3/5 WITH GUSTS PROB OF ISOL RAIN
VIS MODERATE OCNL GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR E 5 WITH GUSTS VEER SECTOR S WITH
GUSTS BY 04/1500 PROB OF RAIN VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR E 4 WITH GUSTS VEER SECTOR S BY 04/1500 PROB OF
RAIN VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SW 8/6 WITH GUSTS BACK SECTOR N 7
WITH GUSTS BY 04/1800 PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS POOR
W OF 30 - E OF 50W: SECTOR N 8 WITH GUSTS PROB OF RAIN VIS VERY POOR
REST OF THE AREA: SECTOR S 6 WITH GUSTS VEER SECTOR W 4 WITH GUSTS BY 04/1800
PROB OF RAIN IMPR TOWARDS EVENING VIS POOR TO GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SW 8/6 WITH GUSTS PROB OF
ISOL SNOW FALL SPELLS OF GOOD WEATHER VIS VERY POOR TO MODERATE
REST OF THE AREA: SW 6 WITH GUSTS VEER SECTOR N 7 GUST WITH 8 INTENSITY BY
04/1500 PROB OF RAIN TOWARDS NIGTH VIS MODERATE TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 30W: SW 8/6 WITH GUSTS PROB OF
ISOL SNOW FALL SPELLS OF GOOD WEATHER VIS VERY POOR TO MODERATE
REST OF THE AREA: SW 6 WITH GUSTS VEER SECTOR N 7 GUST WITH 8 INTENSITY BY
04/1500 PROB OF RAIN TOWARDS NIGTH VIS MODERATE TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 8/7 WITH GUSTS PROB OF SNOW
FALL SPELLS OF GOOD WEATHER VIS VERY POOR TO POOR
REST OF THE AREA: SW 7/6 WITH GUSTS PROB OF ISOL SNOW FALL SPELLS OF GOOD
WEATHER VIS POOR TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50W: SECTOR N 7/6 WITH GUSTS VEER
SECTOR E WITH GUSTS BY 04/2100 PROB OF RAIN VIS POOR TO MODERATE
REST OF THE AREA: SECTOR N 6/5 WITH GUSTS VEER SECTOR E WITH GUSTS BY 5/0000
PROB OF RAIN TOWARDS NIGTH VIS GOOD TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR E 4/5 WITH GUSTS PROB OF ISOL RAIN
SNOW FALL VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 04, OCTOBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1016HPA 64S 75W MOV NE INTSF
HIGH 1004HPA 64S 54W MOV NE WKN
LOW 998HPA 72S 46W MOV NE WKN
041400 UTC 1.SEA ICE LIMIT 5513S 02000W 5400S 02618W 5505S 03217W 5704S 03757W 5811S 04316W 5925S 04814W 6122S 05247W 6008S 05654W 5831S 06032W 5901S 06337W 6022S 06559W 6050S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5525S 04129W 28X25NM D33B 5803S 04737W 21X12NM A76C 5604S 02509W 17X6NM A83 6039S 05153W 12X7NM A85 5859S 05058W 10X3NM ICEBERG1 5834S 05002W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5625S 03837W 9X6NM D33C 6147S 05426W 9X5NM ICEBERG2 5513S 04145W 5X3NM ICEBERG3 5937S 04609W 5X3NM ICEBERG4 5503S 04634W 4X3NM ICEBERG5 5635S 04527W 3X1NM ICEBERG6 5835S 05012W 3X2NM ICEBERG7 5848S 04914W 2X1NM ICEBERG8 5917S 05102W 6X2NM 4.ICEBERGS AREA A5727S 02000W 5000S 02000W 5000S 04100W 5806S 04959W B5806S 04959W 5200S 04100W 5200S 04700W 5852S 04700W C5852S 04700W 5600S 04700W 5900S 06717W 6118S 06717W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-5
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 50W: SECTOR S 3 BACK SE 3 BY 04/2100 PROB OF MIST PROB OFISOL SNOW FALL DISSIPATING STARTING NOON VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4 BACK SW 3 BY 5/0000 PROB OF MIST DISSIPATING STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 4 DECR SECTOR S 3 BY 5/0000 AFTERWARDS SECTOR N 3 BY 5/0900 VIS GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4/5 DECR SW 3 BY 5/0000 PROB OF MIST WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
GERLACHE STRAIT : SW 4/5 DECR SECTOR S 3 BY 5/0300 VIS GOOD
MARGARITA BAY : SECTOR S 3 BACK SECTOR E 3 BY 5/0300 PROB OF MIST WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SECTOR S 3 INCR NW 4 BY 5/0300 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 78W: NE 5/6 WITH GUSTS INCR SECTOR N 6/7 WITH GUSTS BY 5/0300 PROB OF ISOL SNOW FALL IMPR GRADUALLY TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 3/4 BACK NE 4/5 BY 5/0600 VIS GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 6/7 WITH GUSTS DECR 6/5 WITH GUSTS BY 5/0600 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL WORSENING STARTING NOON VIS VERY POOR TO POOR
NORTHERN WEDDELL SEA W OF 34W: SW 4 DECR SECTOR S 4/3 BY 5/0300 PROB OF MIST DISSIPATING STARTING NOON VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 5/6 WITH GUSTS DECR SECTOR S 5/4 BY 5/0300 PROB OF MIST IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 5/4 VEER SW 4/5 BY 5/0000 PROB OF ISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD=