1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-01, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 400: LOW 985HPA AT 52S 45W MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 45S-55S 20W-50W
WARNING 399: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST IN FIN DEL MUNDO COASTS DRAKE AREA (55S- 60S AND 60W- 67W) FROM 02/0600
WARNING 397: LOW 1000HPA AT 29S 43W MOV SE DEEPENING EXPECTED 39S 31W BY 02/1200
WILL PROVOKE WINDS FORCE 8 FROM SECTOR S WITH GUST BETWEEN 35S-40S AND 35W-40W
FROM 01/2100
WARNING 396: LOW 1000HPA AT 29S 43W MOV SE DEEPENING EXPECTED 39S 31W BY 02/1200
WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST BETWEEN 35S-40S AND 20W-35W
FROM 02/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
2IGH 1021HPA 37S 61W MOV NE NC EXP 31S 54W BY 02/1200
311400 UTC 1.SEA ICE LIMIT 5558S 02000W 5446S 02618W 5350S 03218W 5557S 03758W
5859S 04317W 6011S 04814W 6040S 05248W 6201S 05655W 6335S 06032W 6312S 06337W
6137S 06559W 6136S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5322S 02816W 17X6NM
A81 5906S 04741W 28X25NM D33B 5917S 05040W 21X12NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6147S 05421W 9X5NM ICEBERG1 5844S 05107W 5X3NM ICEBERG2 6054S 05339W 5X3NM
ICEBERG3 6023S 05229W 6X4NM 4.ICEBERGS AREA A5628S 02000W 5200S 02000W 5100S
03000W 5400S 03900W 5653S 03900W B5653S 03900W 5500S 03900W 5500S 05000W 6021S
05000W C6021S 05000W 5800S 05400W 5800S 05400W 6000S 06716W 6230S 06716W
LOW 985HPA 29S 43W MOV SE DPN EXP 39S 31W BY 02/1200 EXTENDS CFNT AT 51S 39W 40S
50W 32S 62W MOV E
LOW 1000HPA 29S 43W MOV SE DPN
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-2
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 4 BACK SECTOR N 5 WITH GUSTS PROB OF MIST FOG
PATCHES VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SECTOR S 5 WITH GUSTS BACK SECTOR N PROB OF MIST FOG
PATCHES STARTING EARLY MORNING VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: VRB 4 BACK SECTOR S BACK SECTOR N PROB OF MIST FOG
PATCHES DURING THE MORNING VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): VRB 3/4 BACK SECTOR N LOW PROB OF RAIN
STARTING NIGTH PROB OF FOG AND MIST IN PATCHES STARTING EARLY MORNING VIS
MODERATE OCNL GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 3/4 BACK SECTOR N 5 WITH
GUSTS PROB OF ISOL SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5 WITH GUSTS VEER SECTOR N LOW
PROB OF ISOL RAIN DURING THE MORNING PROB OF SH RAIN STARTING NIGTH VIS
MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 5 WITH GUSTS BACK VRB PROB OF
ISOL RAIN STARTING EVENING SPELLS OF GOOD WEATHER VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 4/5 WITH GUSTS INCR 6 WITH GUSTS
BY 2/0900 LOW PROB OF INTERMITTENT RAIN VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/6 WITH GUSTS INCR 8 BY 2/0600 LOW
PROB OF ISOL SNOW FALL NXT PROB OF SH OF SNOW SNOW FALL STARTING EARLY MORNING
VIS MODERATE OCNL GOOD
ISLAS MALVINAS COASTS: SECTOR S 5 WITH GUSTS VEER SECTOR W 6 WITH GUSTS PROB OF
INTERMITTENT SH OF SNOW VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR E 5/6 WITH GUSTS BACK SECTOR
N 7/8 WITH GUSTS PROB OF HVY RAIN VIS MODERATE TO VERY POOR
W OF 30 - E OF 40W: SECTOR E 6 WITH GUSTS VEER SECTOR S 7/8 WITH GUSTS PROB OF
SH RAIN STARTING NOON VIS MODERATE TO POOR OCNL VERY POOR
REST OF THE AREA: VRB 5 VEER SECTOR S WITH GUSTS LOW PROB OF SH VIS MODERATE
OCNL GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) S OF 45S: SECTOR W 7/8 WITH GUSTS PROB
OF ISOL SNOW FALL SPELLS OF GOOD WEATHER VIS MODERATE TO POOR
REST OF THE AREA: SECTOR N 5 WITH GUSTS BACK SECTOR S 7 GUST WITH 8 INTENSITY
PROB OF SH RAIN STARTING NIGTH VIS MODERATE TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - S OF 45S: SECTOR W 8/7 WITH
GUSTS BACK SECTOR S 5 WITH GUSTS PROB OF INTERMITTENT SH OF RAIN SH OF SNOW VIS
POOR TO MODERATE
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS LOW PROB OF SH OF RAIN SH OF SNOW VIS
MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR N 6/7 WITH GUSTS BACK
SECTOR W 8 WITH GUSTS PROB OF SH OF SNOW SNOW FALL SPELLS OF GOOD WEATHER VIS
MODERATE TO POOR
REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF ISOL SNOW FALL VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 6/7 WITH GUSTS PROB OF
INTERMITTENT SNOW FALL VIS POOR OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7/8 WITH GUSTS PROB OF INTERMITTENT
SNOW FALL VIS MODERATE TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 01, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1115/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA PROVOKES WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-65S 40W-30W UNTIL 01/2100
1116/2026 STRONG BARIC GRADIENT MARGARITA BAY MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR E IN 66S-68S 69W-65W UNTIL 01/2100
1117/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM NE VEER SECTOR E IN 68S-72S 45W-30W UNTIL 02/0900
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 961HPA 68S 45W MOV E DPN
LOW 960HPA 67S 54W MOV E WKN
LOW 969HPA 69S 55W MOV E DPN
LOW 967HPA 64S 54W MOV E INTSF
311400 UTC 1.SEA ICE LIMIT 5558S 02000W 5446S 02618W 5350S 03218W 5557S 03758W 5859S 04317W 6011S 04814W 6040S 05248W 6201S 05655W 6335S 06032W 6312S 06337W 6137S 06559W 6136S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5322S 02816W 17X6NM A81 5906S 04741W 28X25NM D33B 5917S 05040W 21X12NM 3.ICEBERGS SMALLER THAN 10NM D33C 6147S 05421W 9X5NM ICEBERG1 5844S 05107W 5X3NM ICEBERG2 6054S 05339W 5X3NM ICEBERG3 6023S 05229W 6X4NM 4.ICEBERGS AREA A5628S 02000W 5200S 02000W 5100S 03000W 5400S 03900W 5653S 03900W B5653S 03900W 5500S 03900W 5500S 05000W 6021S 05000W C6021S 05000W 5800S 05400W 5800S 05400W 6000S 06716W 6230S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-2
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 6/7 WITH GUSTS BACK SW 7 GUST WITH 8 INTENSITY BY 01/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7 GUST WITH 8 INTENSITY BACK SW 7 GUST WITH 8 INTENSITY BY 01/1800 PROB OF MIST BLIZZARD PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 6/7 WITH GUSTS BACK SW 7 GUST WITH 8 INTENSITY BY 01/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 7 GUST WITH 8 INTENSITY BACK SW 7 GUST WITH 8 INTENSITY BY 01/1800 PROB OF MIST BLIZZARD PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SW 3/4 BACK SECTOR E 4/3 BY 01/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS MODERATE TO GOOD
MARGARITA BAY : SE 3/4 BACK SECTOR E 4/5 BY 01/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 5/7 GUST WITH 8 INTENSITY INCR SW 9 WITH GUSTS BY 01/2100 PROB OF FOG AND MIST IN PATCHES PROB OFCOASTAL BLIZZARD WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 7/5 WITH GUSTS BACK SECTOR S 4 BY 2/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 6/5 VEER SECTOR W 4/3 BY 01/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 4/5 VEER SW 4/3 BY 2/0300 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SECTOR N 7/8 WITH GUSTS BACK NW 7/5 WITH GUSTS BY 01/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NE 7 GUST WITH 8 INTENSITY VEER SECTOR E 8 WITH GUSTS BY 01/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/5 VEER SE 5 BY 01/2100 PROB OF MIST VIS MODERATE TO GOOD=