METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 121200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-09-12, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 420: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W

WITH GUST IN DRAKE AREA (55S- 60S AND 60W- 67W)

WARNING 419: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM S WITH

GUST BETWEEN 35S-45S AND 20W-40W FROM 12/1500 UNTIL 13/0300

WARNING 418: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 WITH GUST

BETWEEN 35S-45S AND 20W-30W UNTIL 13/0000

WARNING 417: LOW 975HPA AT 59S 20W MOV E NOT CHANGE PROVOKES WINDS FORCE 8 FROM

SECTOR W WITH GUST BETWEEN 50S-60S AND 20W-30W UNTIL 13/0000

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 975HPA 59S 20W NOT MOV NC

LOW 1005HPA 35S 30W MOV SE DPN

HIGH 1038HPA 43S 65W MOV NE EXP 37S 60W BY 13/1200

111400 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 5714S 04700W 28X25NM

D33B 5842S 04939W 21X12NM A76C 5407S 02620W 17X6NM 3.ICEBERGS SMALLER THAN 10NM

D32 5757S 03911W 9X6NM D33C 6152S 05420W 9X5NM ICEBERG1 5852S 04703W 5X3NM

ICEBERG2 6014S 05224W 5X3NM ICEBERG3 5845S 05108W 6X4NM ICEBERG4 6012S 05130W

2X1NM ICEBERG5 5844S 05130W 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 2026-09-13

COASTAL AREAS:

INNER RIO DE LA PLATA: SE 5/4 PROB OF ISOL DRIZZLE TOWARDS THE END OF THE PERIOD

IMPR VIS POOR TO GOOD

OUTER RIO DE LA PLATA: SE 6/4 WITH GUSTS PROB OF ISOL DRIZZLE TOWARDS THE END OF

THE PERIOD IMPR VIS POOR TO GOOD

URUGUAY SOUTH EAST COASTS: SE 6/5 WITH GUSTS PROB OF ISOL RAIN VIS POOR TO

MODERATE

MAR DEL PLATA COASTS(3617S - 3830S): S 5/4 WITH GUSTS BACK SECTOR W 3 BY

13/0300 VIS GOOD

RINCON BAHIA BLANCA COASTS(3830S - 41S): S 4/3 BACK NW 4/5 WITH GUSTS BY

13/0600 VIS GOOD

PENINSULA DE VALDES COASTS(41S - 45S): S 3 VEER NW 4/6 WITH GUSTS BY 12/1800

VIS GOOD

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 5/4 WITH GUSTS VIS GOOD

SOUTH PATAGONIA COASTS(48S - 54S): W 5/6 WITH GUSTS VIS GOOD

FIN DEL MUNDO COASTS(54S - 55S): W 6/7 GUST WITH 8 INTENSITY LOW PROB OF ISOL

RAIN VIS GOOD OCNL MODERATE

ISLAS MALVINAS COASTS: W 6/7 WITH GUSTS LOW PROB OF ISOL RAIN VIS GOOD OCNL

MODERATE

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 9 WITH GUSTS VEER S 8 WITH GUSTS

BY 12/1800 DECR 6 WITH GUSTS BY 13/0300 HVY STORMS TOWARDS THE END OF THE PERIOD

IMPR VIS VERY POOR TO MODERATE

REST OF THE AREA: SECTOR S 6/5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: S 6 WITH GUSTS VEER W 6/7

WITH GUSTS BY 13/0600 PROB OF ISOL RAIN VIS MODERATE OCNL POOR

REST OF THE AREA: SECTOR W 6/7 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE OCNL

POOR

CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR S 5 WITH GUSTS VEER

SECTOR W 5/6 WITH GUSTS BY 13/0600 PROB OF SH TOWARDS THE END OF THE PERIOD VIS

GOOD TO MODERATE

REST OF THE AREA: SECTOR W 5/6 WITH GUSTS INCR 7 GUST WITH 8 INTENSITY BY

13/0300 PROB OF ISOL SH VIS GOOD TO MODERATE

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

GUSTS BY 13/0000 PROB OF SH VIS POOR TO MODERATE

REST OF THE AREA: W 7/6 WITH GUSTS PROB OF SH VIS GOOD OCNL MODERATE

SOUTH WEST AREA (50S- 60S AND 40W- 60W): SW 6/7 WITH GUSTS PROB OF RAIN AND SNOW

MIXTURE VIS MODERATE OCNL POOR

DRAKE AREA (55S- 60S AND 60W- 67W): W 8/7 WITH GUSTS PROB OF RAIN AND SNOW

MIXTURE VIS POOR

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HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 121200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 12, 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 994HPA 60S 43W MOV E WKN

LOW 998HPA 67S 40W MOV E WKN

HIGH 1004HPA 69S 50W MOV NE INTSF

LOW 1003HPA 63S 68W MOV E DPN

111400 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 5714S 04700W 28X25NM D33B 5842S 04939W 21X12NM A76C 5407S 02620W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D32 5757S 03911W 9X6NM D33C 6152S 05420W 9X5NM ICEBERG1 5852S 04703W 5X3NM ICEBERG2 6014S 05224W 5X3NM ICEBERG3 5845S 05108W 6X4NM ICEBERG4 6012S 05130W 2X1NM ICEBERG5 5844S 05130W 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 2026-09-13

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 3/4 BACK SECTOR S 5 WITH GUSTS BY 13/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 3/4 VEER NE 4 BY 13/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL POOR

MAR DE LA FLOTA COASTS W OF 60W: SW 3/4 BACK SECTOR S 5 WITH GUSTS BY 13/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 3/4 VEER NE 4 BY 13/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL POOR

GERLACHE STRAIT : SE 3/4 BACK SECTOR E 4 BY 12/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD

MARGARITA BAY : SECTOR S 3/4 VEER NE 3 BY 13/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE NIGTH VIS POOR TO MODERATE OCNL GOOD

EREBUS Y TERROR GULF : NW 3/4 BACK SECTOR S 5/6 BY 13/0300 PROB OF MIST VIS MODERATE TO GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SE 3/4 VEER SECTOR S 5 BY 13/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 3/4 INCR SW 5 BY 13/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 3/4 VEER SECTOR W 4/5 BY 13/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD

NORTHERN WEDDELL SEA N OF 64S: SECTOR S 3/4 VEER SW 4/3 BY 13/0000 PROB OF FOG AND MIST IN PATCHES ISOL SNOW FALL IMPR DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 VEER SW 3/4 BY 13/0000 PROB OF MIST VIS MODERATE TO GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SE 4 BY 12/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD=