METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 261200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-09-26, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 438: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 WITH GUST

BETWEEN 40S-60S AND 20W-30W UNTIL 26/2100

PART 2 GENERAL SYNOPSIS AT 09:00UTC

251400 UTC 1.SEA ICE LIMIT 5532S 02000W 5355S 02618W 5318S 03218W 5545S 03757W

5746S 04317W 5903S 04813W 6030S 05247W 6231S 05654W 5926S 06032W 5905S 06337W

6014S 06559W 6059S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5646S 04403W 28X25NM

D33B 5914S 04541W 21X12NM A76C 5435S 02625W 17X6NM A85 6027S 05226W 10X3NM

ICEBERG1 6041S 05226W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5716S 03845W 9X6NM

D33C 6157S 05422W 9X5NM ICEBERG2 5630S 04458W 5X3NM ICEBERG3 5852S 04802W 5X3NM

ICEBERG4 5723S 04826W 4X3NM ICEBERG5 5729S 04731W 3X1NM ICEBERG6 6054S 05305W

3X2NM 4.ICEBERGS AREA A5610S 02000W 5000S 02000W 5000S 03500W 5610S 03500W

B5610S 03500W 5000S 03500W 5400S 05000W 5930S 05000W C5930S 05000W 5400S 05000W

5900S 06716W 6045S 06716W

LOW 998HPA 44S 44W MOV NE DPN EXTENDS CFNT AT 41S 51W 42S 49W 43S 46W MOV NE

LOW 989HPA 47S 33W MOV E WKN EXTENDS CFNT AT 35S 42W 40S 38W 46S 34W MOV E

CFNT AT 53S 38W 55S 31W 58S 26W MOV E

HIGH 1018HPA 39S 58W MOV SE INTSF EXP 42S 54W BY 27/1200

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-27

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR E 4 WITH GUSTS PROB OF ISOL RAIN TOWARDS THE END

OF THE PERIOD VIS GOOD TO MODERATE

OUTER RIO DE LA PLATA: SECTOR E 4/5 WITH GUSTS PROB OF ISOL RAIN TOWARDS THE END

OF THE PERIOD VIS GOOD TO MODERATE

URUGUAY SOUTH EAST COASTS: SECTOR E 3/4 WITH GUSTS VIS GOOD

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 3 BACK SECTOR E 4 WITH GUSTS BY

26/1500 PROB OF ISOL RAIN TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE

RINCON BAHIA BLANCA COASTS(3830S - 41S): NE 4/5 WITH GUSTS PROB OF ISOL SH

RAIN TOWARDS NIGTH VIS GOOD TO MODERATE

PENINSULA DE VALDES COASTS(41S - 45S): NE 3/5 WITH GUSTS PROB OF ISOL SH RAIN

TOWARDS NIGTH VIS GOOD TO MODERATE

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 3/4 WITH GUSTS PROB OF ISOL SH

RAIN TOWARDS NIGTH VIS GOOD TO MODERATE

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 4 WITH GUSTS BACK SECTOR N WITH

GUSTS BY 26/1500 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL

MODERATE

FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 4 WITH GUSTS BACK SECTOR W BY

26/1500 PROB OF ISOL RAIN SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS

MODERATE TO GOOD

ISLAS MALVINAS COASTS: SECTOR S 4 WITH GUSTS BACK SECTOR W BY 26/1500 PROB OF

ISOL RAIN TOWARDS NIGTH VIS GOOD TO MODERATE

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 7 WITH GUSTS BACK SECTOR S

WITH GUSTS BY 27/0000 PROB OF RAIN STORMS VIS POOR

W OF 40 - E OF 50W: SECTOR S 7/4 WITH GUSTS PROB OF ISOL SH RAIN IMPR TOWARDS

THE END OF THE PERIOD VIS POOR TO GOOD

REST OF THE AREA: SECTOR S 7/3 WITH GUSTS BACK SECTOR E 4 WITH GUSTS BY 27/0300

PROB OF ISOL RAIN TOWARDS EVENING IMPR VIS MODERATE TO GOOD OCNL POOR

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: NW 8 WITH GUSTS BACK SECTOR

S 7 WITH GUSTS BY 26/2100 PROB OF RAIN RAIN AND SNOW MIXTURE VIS VERY POOR TO

POOR

: SECTOR S 6/7 WITH GUSTS PROB OF RAIN RAIN AND SNOW MIXTURE VIS POOR

CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 7/4 WITH GUSTS PROB

OF ISOL SH SNOW FALL SPELLS OF GOOD WEATHER VIS POOR TO MODERATE OCNL GOOD

REST OF THE AREA: SECTOR S 6/3 WITH GUSTS PROB OF ISOL RAIN SPELLS OF GOOD

WEATHER VIS MODERATE OCNL GOOD

SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR S 6/7 WITH GUSTS VEER SECTOR W

WITH GUSTS BY 27/0300 PROB OF RAIN AND SNOW MIXTURE SNOW FALL VIS POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR S 7/6 WITH GUSTS VEER SECTOR W 7

GUST WITH 8 INTENSITY BY 26/1800 PROB OF ISOL RAIN SNOW FALL SPELLS OF GOOD

WEATHER VIS POOR OCNL MODERATE

DRAKE AREA (55S- 60S AND 60W- 67W): SW 5/6 WITH GUSTS PROB OF ISOL RAIN SNOW

FALL VIS MODERATE OCNL POOR

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HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 261200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 26, SEPTEMBER 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

1184/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 9 WITH GUST IN 66S-70S 90W-70W FROM 26/1800

1185/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 9 FROM SECTOR W WITH GUST IN 68S-70S 90W-70W UNTIL 27/1800

PART 2 GENERAL SYNOPSIS AT 09:00UTC

RIDGE 62S 50W 65S 51W 71S 49W MOV E WKN

STRONG BARIC GRADIENT 62S 82W 64S 78W 66S 73W MOV E WKN

LOW 976HPA 68S 71W MOV E WKN

251400 UTC 1.SEA ICE LIMIT 5532S 02000W 5355S 02618W 5318S 03218W 5545S 03757W 5746S 04317W 5903S 04813W 6030S 05247W 6231S 05654W 5926S 06032W 5905S 06337W 6014S 06559W 6059S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5646S 04403W 28X25NM D33B 5914S 04541W 21X12NM A76C 5435S 02625W 17X6NM A85 6027S 05226W 10X3NM ICEBERG1 6041S 05226W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5716S 03845W 9X6NM D33C 6157S 05422W 9X5NM ICEBERG2 5630S 04458W 5X3NM ICEBERG3 5852S 04802W 5X3NM ICEBERG4 5723S 04826W 4X3NM ICEBERG5 5729S 04731W 3X1NM ICEBERG6 6054S 05305W 3X2NM 4.ICEBERGS AREA A5610S 02000W 5000S 02000W 5000S 03500W 5610S 03500W B5610S 03500W 5000S 03500W 5400S 05000W 5930S 05000W C5930S 05000W 5400S 05000W 5900S 06716W 6045S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-27

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 55W: SECTOR W 4/5 INCR SW 6 BY 27/0000 PROB OF FOG PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 3 BACK SECTOR W 5/6 BY 26/1800 AFTERWARDS SW 6/7 WITH GUSTS BY 27/0900 PROB OF ISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD

MAR DE LA FLOTA COASTS W OF 55W: SW 3/5 VEER SECTOR W 4/6 BY 26/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL VERY POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 3/4 BACK SECTOR W 5/6 WITH GUSTS BY 26/2100 AFTERWARDS SW 4 BY 27/0600 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NIGTH VIS MODERATE TO GOOD

GERLACHE STRAIT : SECTOR N 5/6 BACK SW 5/4 BY 26/2100 AFTERWARDS SECTOR W 5/6 BY 27/0900 PROB OF FOG PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO POOR

MARGARITA BAY : NW 6/7 WITH GUSTS BACK SECTOR W 5 BY 27/2100 AFTERWARDS NW 4/5 BY 27/0900 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO POOR

EREBUS Y TERROR GULF : SECTOR N 4/5 BACK NW 5 BY 26/2100 AFTERWARDS SECTOR W 5/6 BY 27/0300 PROB OF FOG AND MIST IN PATCHES WORSENING STARTING EVENING VIS MODERATE OCNL POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA (60-66S 70-90W): SECTOR W 5/6 VEER NW 4/6 BY 27/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NW 8 WITH GUSTS INCR NW 10 WITH GUSTS BY 27/0000 AFTERWARDS SECTOR W 10 WITH GUSTS BY 27/0900 PROB OF FOG PROB OFMOD SNOW FALL IMPR GRADUALLY STARTING EARLY MORNING VIS VERY POOR TO POOR

NORTHERN WEDDELL SEA W OF 35W: SW 4/5 VEER SECTOR N 4/5 BY 26/2100 AFTERWARDS SECTOR W 5/6 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE TO POOR

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 4 BACK SW 4/3 AFTERWARDS SECTOR W 4 BY 27/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 4/5 VEER SECTOR N 5/6 BY 27/0000 AFTERWARDS SECTOR N 4 BY 27/0900 PROB OF ISOL SNOW FALL IMPR STARTING EVENING VIS MODERATE TO GOOD=