1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-11, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 417: LOW 975HPA AT 56S 33W MOV SE NOT CHANGE PROVOKES WINDS FORCE 8
AROUND ITSELF WITH GUST
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 975HPA 56S 33W MOV SE NC EXTENDS CFNT AT 57S 27W 49S 29W 39S 58W MOV NE
ASOCIATED WITH OFNT AT 57S 27W 59S 32W 55S 38W
HIGH 1035HPA 48S 80W MOV NE NC EXP 38S 65W BY 12/1200 EXTENDS RIDGE AT 48S 80W
45S 69W 41S 59W MOV NE
LOW 1005HPA 35S 37W MOV SE EXTENDS CFNT AT 36S 36W 32S 36W 29S 47W MOV E
STRONG BARIC GRADIENT PENINSULA DE VALDES COASTS MOV NE NC EXP RINCON BAHIA
BLANCA COASTS BY 11/1500
101400 UTC 1.SEA ICE LIMIT 5545S 02000W 5412S 02618W 5547S 03218W 5632S 03758W
5720S 04317W 5923S 04813W 6002S 05247W 6126S 05654W 6005S 06032W 6010S 06337W
6026S 06559W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5722S 04714W 28X25NM
D33B 5840S 05006W 21X12NM A76C 5357S 02626W 17X6NM 3.ICEBERGS SMALLER THAN 10NM
D32 5757S 03905W 9X6NM D33C 6145S 05409W 9X5NM ICEBERG1 5908S 04636W 5X3NM
ICEBERG2 6014S 05231W 5X3NM ICEBERG3 5917S 05050W 6X4NM ICEBERG4 5951S 05008W
2X1NM 4.ICEBERGS AREA A5616S 02000W 4901S 02000W 5200S 04009W 5820S 04000W
B5820S 04000W 5317S 03933W 5903S 06716W 6145S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-12
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3 VEER SE 4/5 WITH GUSTS PROB OF SH RAIN
STARTING EARLY MORNING VIS MODERATE OCNL GOOD
OUTER RIO DE LA PLATA: SECTOR E 3 VEER SE 4/6 WITH GUSTS MIST DISSIPATING PROB
OF SH RAIN STARTING EARLY MORNING VIS MODERATE OCNL GOOD
URUGUAY SOUTH EAST COASTS: SECTOR E 3 VEER SECTOR S 4 WITH GUSTS MIST
DISSIPATING PROB OF SH RAIN STARTING EARLY MORNING VIS MODERATE OCNL GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR E 3 VEER SE 4/5 WITH GUSTS PROB OF
RAIN STORMS NXT SH MIST FOG PATCHES DISSIPATING VIS POOR OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SE 4/6 WITH GUSTS DECR SECTOR E 4/3
WITH GUSTS PROB OF RAIN STORMS NXT SH FOG PATCHES DISSIPATING VIS POOR OCNL
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SE 6/4 WITH GUSTS VEER SECTOR W 3/4
PROB OF SH RAIN IMPR VIS POOR TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 4/3 WITH GUSTS VEER SECTOR W
3/4 WITH GUSTS PROB OF SH RAIN AND SNOW MIXTURE IMPR VIS POOR TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 4 VEER SECTOR W 5/6 WITH GUSTS
PROB OF SH OF SNOW IMPR VIS POOR TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/6 WITH GUSTS PROB OF SH OF SNOW
VIS POOR
ISLAS MALVINAS COASTS: SW 5 WITH GUSTS VEER SECTOR W 6/7 WITH GUSTS PROB OF SH
OF SNOW VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 6/7 WITH GUSTS PROB OF HVY
RAIN STORMS VIS POOR
REST OF THE AREA: SECTOR S 7/6 WITH GUSTS PROB OF SH VIS POOR OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): NW 5 WITH GUSTS BACK SW 6 WITH GUSTS
PROB OF SH OF SNOW VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR S 6/5 WITH GUSTS PROB
OF SH RAIN AND SNOW MIXTURE VIS POOR
REST OF THE AREA: SECTOR S 6 WITH GUSTS VEER SW 6/7 WITH GUSTS PROB OF SH OF
SNOW VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 7/8 WITH GUSTS BACK
SECTOR W 8 WITH GUSTS PROB OF HVY SNOW FALL VIS POOR
REST OF THE AREA: SECTOR W 8/7 WITH GUSTS PROB OF HVY SNOW FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 7 WITH GUSTS PROB OF HVY SNOW
FALL VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 7 WITH GUSTS VEER SECTOR W 6/7 WITH GUSTS
PROB OF SNOW FALL VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 11, SEPTEMBER 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
LOW 996HPA 66S 53W MOV E DPN
HIGH 999HPA 66S 53W MOV E WKN
RIDGE 60S 45W 63S 44W 66S 42W MOV E WKN
LOW 1005HPA 64S 88W MOV SE DPN
101400 UTC 1.SEA ICE LIMIT 5545S 02000W 5412S 02618W 5547S 03218W 5632S 03758W 5720S 04317W 5923S 04813W 6002S 05247W 6126S 05654W 6005S 06032W 6010S 06337W 6026S 06559W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5722S 04714W 28X25NM D33B 5840S 05006W 21X12NM A76C 5357S 02626W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D32 5757S 03905W 9X6NM D33C 6145S 05409W 9X5NM ICEBERG1 5908S 04636W 5X3NM ICEBERG2 6014S 05231W 5X3NM ICEBERG3 5917S 05050W 6X4NM ICEBERG4 5951S 05008W 2X1NM 4.ICEBERGS AREA A5616S 02000W 4901S 02000W 5200S 04009W 5820S 04000W B5820S 04000W 5317S 03933W 5903S 06716W 6145S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-12
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 5/4 BY 11/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4/5 BACK SW 6 WITH GUSTS BY 11/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 5/3 BY 11/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4/5 BACK SW 6 WITH GUSTS BY 11/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SECTOR S 3/4 BACK SECTOR E 4 BY 12/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : SECTOR N 3/4 VEER NE 5 BY 12/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
EREBUS Y TERROR GULF : SW 7 GUST WITH 8 INTENSITY DECR SW 6/5 WITH GUSTS BY 12/0000 PROB OF MIST VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 4/5 BACK SECTOR S 3/4 BY 12/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 3/4 BACK SW 4/3 BY 12/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NOON VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/5 BACK SW 4/3 BY 11/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SECTOR S 3/4 VEER NW 4/5 BY 11/2100 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 VEER NW 5 BY 11/1800 PROB OF MIST VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 3/4 VEER SECTOR E 4 BY 11/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD=