METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 291200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-06-29, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 298: LOW 975HPA AT 57S 56W EXPECTED BY 30/0000 WILL PROVOKE WINDS FORCE

8 FROM SW WITH GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS

MALVINAS COASTS FROM 30/0300

WARNING 297: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH

GUST IN FIN DEL MUNDO COASTS UNTIL 30/0000

WARNING 296: LOW 989HPA AT 42S 42W MOV SE DEEPENING EXPECTED 53S 28W BY 30/1200

PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST BETWEEN 40S-50S 20W-40W FROM

29/1800

WARNING 295: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR N WITH

GUST BETWEEN 35S-50S AND 20W-40W

PART 2 GENERAL SYNOPSIS AT 09:00UTC

281400 UTC 1.SEA ICE LIMIT 6002S 02000W 5716S 02618W 5749S 03217W 5758S 03757W

5836S 04317W 5911S 04814W 6130S 05247W 6200S 05655W 6326S 06033W 6411S 06337W

6527S 06559W 6613S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5253S 03142W 16X6NM

3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4739S 02253W 4X1NM ICEBERG2 5248S 03241W

3X1NM 4.ICEBERGS AREA A60015S 02000W 4200S 02000W 5035S 03500W 5830S 03300W

B58030S 03300W 5130S 03430W 5620S 04940W 5935S 04815W C58035S 04515W 5620S

04840W 6150S 06716W 6320S 06716W

LOW 989HPA 42S 42W MOV SE DPN EXP 53S 28W BY 30/1200 EXTENDS CFNT AT 42S 41W 31S

43W 25S 48W MOV E

LOW 998HPA 50S 49W MOV E WKN

HIGH 1034HPA 42S 24W MOV E

CFNT AT 59S 45W 53S 50W MOV E

HIGH 1024HPA 33S 64W MOV E EXP 34S 53W BY 30/1200

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-30

COASTAL AREAS:

INNER RIO DE LA PLATA: VRB 4 BACK SECTOR S BACK NE BY 30/0600 PROB OF MIST

DURING THE MORNING VIS MODERATE TO GOOD

OUTER RIO DE LA PLATA: SECTOR S 4/5 WITH GUSTS BACK SECTOR N PROB OF SH DURING

THE EVENING VIS GOOD OCNL MODERATE

URUGUAY SOUTH EAST COASTS: SECTOR N 4 BACK SECTOR S BACK NE PROB OF MIST DURING

THE MORNING VIS MODERATE TO GOOD

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 5 WITH GUSTS BACK SECTOR W PROB

OF SH IMPR STARTING NIGTH VIS GOOD OCNL MODERATE

RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 5 WITH GUSTS BACK SECTOR N PROB OF

SH DURING THE MORNING VIS GOOD OCNL MODERATE

PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5/6 WITH GUSTS PROB OF SH

DURING THE MORNING WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 5 WITH GUSTS BACK SW 7/8 WITH

GUSTS BY 30/1200 PROB OF SH RAIN AND SNOW MIXTURE STARTING EARLY MORNING VIS

MODERATE TO POOR

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 6 WITH GUSTS BACK SW 7/8 WITH

GUSTS BY 30/0300 PROB OF SH OF RAIN SH OF SNOW STARTING EVENING VIS MODERATE TO

POOR

FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 7/8 WITH GUSTS BACK SW 8 WITH GUSTS

BY 30/0300 PROB OF SH RAIN AND SNOW MIXTURE NXT PROB OF SH OF SNOW STARTING

NIGTH VIS MODERATE TO POOR

ISLAS MALVINAS COASTS: SECTOR W 6/7 WITH GUSTS BACK SW 8 WITH GUSTS BY 30/0600

PROB OF SH RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE TO POOR

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 8 WITH GUSTS BACK SECTOR W

7/6 WITH GUSTS PROB OF ISOL SH RAIN VIS POOR TO MODERATE

REST OF THE AREA: SECTOR W 7/5 WITH GUSTS PROB OF SH SPELLS OF GOOD WEATHER VIS

POOR TO MODERATE

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) S OF 45S: SECTOR N 7/8 WITH GUSTS BACK

SECTOR W WITH GUSTS PROB OF HVY RAIN NXT PROB OF SH RAIN AND SNOW MIXTURE

STARTING EARLY MORNING VIS POOR

REST OF THE AREA: SECTOR N 8 WITH GUSTS BACK SECTOR W 7/6 WITH GUSTS PROB OF SH

RAIN VIS POOR OCNL MODERATE

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 7/6 WITH GUSTS PROB OF ISOL

RAIN NXT PROB OF SH RAIN AND SNOW MIXTURE STARTING EARLY MORNING VIS MODERATE

OCNL POOR

SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 6/7 GUST WITH 8

INTENSITY PROB OF HVY RAIN SNOW FALL STARTING NIGTH VIS MODERATE TO POOR

REST OF THE AREA: SECTOR N 7 WITH GUSTS BACK SECTOR S 6/5 WITH GUSTS PROB OF SH

OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50W: SECTOR W 6 WITH GUSTS BACK SW

7 WITH GUSTS PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE TO POOR

REST OF THE AREA: SECTOR W 6 WITH GUSTS PROB OF SH RAIN AND SNOW MIXTURE SPELLS

OF GOOD WEATHER VIS MODERATE

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6 WITH GUSTS BACK SW 8 WITH GUSTS

PROB OF RAIN AND SNOW MIXTURE NXT PROB OF SH OF SNOW STARTING NIGTH VIS MODERATE

TO POOR

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HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 291200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 29, JUNE 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

862/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST VEER SECTOR W IN 60S-70S 50W-30W UNTIL 29/1800

863/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 63S-69S 90W-75W UNTIL 30/0600

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 979HPA 61S 70W MOV E WKN

LOW 937HPA 70S 50W MOV SE DPN EXTENDS CFNT AT 70S 50W 73S 40W 64S 35W MOV E

281400 UTC 1.SEA ICE LIMIT 6002S 02000W 5716S 02618W 5749S 03217W 5758S 03757W 5836S 04317W 5911S 04814W 6130S 05247W 6200S 05655W 6326S 06033W 6411S 06337W 6527S 06559W 6613S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5253S 03142W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4739S 02253W 4X1NM ICEBERG2 5248S 03241W 3X1NM 4.ICEBERGS AREA A60015S 02000W 4200S 02000W 5035S 03500W 5830S 03300W B58030S 03300W 5130S 03430W 5620S 04940W 5935S 04815W C58035S 04515W 5620S 04840W 6150S 06716W 6320S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-30

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/4 WITH GUSTS INCR SW 7 WITH GUSTS BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO VERY POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 7/5 WITH GUSTS VEER NW 5 WITH GUSTS BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE

MAR DE LA FLOTA COASTS W OF 60W: SW 5/4 WITH GUSTS INCR SW 7 WITH GUSTS BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO VERY POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 7/5 WITH GUSTS VEER NW 5 WITH GUSTS BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE

GERLACHE STRAIT : SW 5/4 BACK SE 4/3 BY 29/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD

MARGARITA BAY : NW 5/4 VEER SECTOR N 4/3 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL STARTING NOON IMPR VIS MODERATE TO GOOD

EREBUS Y TERROR GULF : SW 7/5 WITH GUSTS BACK SECTOR S 5/4 BY 30/0300 VIS GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/7 GUST WITH 8 INTENSITY VEER SECTOR W 6/7 WITH GUSTS BY 30/0000 PROB OF MIST PROB OFSCT SH OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD

NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/7 GUST WITH 8 INTENSITY VEER SECTOR W 6/7 WITH GUSTS BY 30/0000 PROB OF MIST PROB OFSCT SH OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 8 WITH GUSTS VEER SECTOR W 7/5 WITH GUSTS BY 30/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS MODERATE TO GOOD

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/5 BACK SW 5/4 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE

NORTHERN WEDDELL SEA N OF 65S: SECTOR W 7 WITH GUSTS VEER NW 5/4 BY 30/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE

NORTHERN WEDDELL SEA REST OF THE AREA: NW 9 WITH GUSTS BACK SECTOR W 7/5 WITH GUSTS BY 29/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE

SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 5/7 GUST WITH 8 INTENSITY VEER SECTOR E 7/5 BY 30/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE=