METAREA 6 bulletinset


HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 281200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 28, JUNE 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

856/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-67S 50W-30W UNTIL 29/2100

857/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-66S 70W-50W UNTIL 29/0600

858/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST BACK SECTOR W IN 60S-65S 90W-70W UNTIL 28/2100

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 952HPA 64S 66W MOV SE DPN

LOW 951HPA MOV SE DPN

RIDGE 951HPA 67S 57W MOV SE DPN

RIDGE 60S 38W 65S 40W 70S 43W MOV E WKN

271400 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 5249S 03150W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4803S 02302W 4X1NM ICEBERG2 5330S 03213W 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 2026-06-29

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 7 GUST WITH 8 INTENSITY BACK SW 6/5 WITH GUSTS BY 28/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 9 WITH GUSTS BACK SECTOR W 8/7 WITH GUSTS BY 29/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE

MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 7 GUST WITH 8 INTENSITY BACK SW 6/5 WITH GUSTS BY 28/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: NW 9 WITH GUSTS BACK SECTOR W 8/7 WITH GUSTS BY 29/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE

GERLACHE STRAIT : NE 5/6 WITH GUSTS BACK SECTOR W 5/4 BY 28/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS VERY POOR TO MODERATE

MARGARITA BAY : NW 3/4 VEER SECTOR N 4/3 BY 29/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD

EREBUS Y TERROR GULF : NW 7/8 WITH GUSTS DECR SECTOR W 6/5 BY 28/1800 PROB OF MIST BLIZZARD PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS VERY POOR TO MODERATE OCNL GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 7/8 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 28/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE OCNL GOOD

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 5/6 BACK SW 5/4 BY 28/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 3/4 VEER SECTOR W 4/5 BY 28/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE

NORTHERN WEDDELL SEA N OF 65S: NW 7/8 WITH GUSTS DECR SECTOR W 7/5 GUST WITH 8 INTENSITY BY 29/0300 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE NOON VIS MODERATE TO VERY POOR

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 7/5 WITH GUSTS VEER SECTOR W 7/8 WITH GUSTS BY 28/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO VERY POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 BACK SECTOR E 5/6 BY 29/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE=


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 280000

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-06-28, 00:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 292: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 WITH GUST

BETWEEN 50S-60S 50W-60W FROM 28/0900

WARNING 291: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 9 WITH GUST IN

SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS DRAKE AREA

(55S- 60S AND 60W- 67W) FROM 28/0300 UNTIL 28/1800

WARNING 290: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH

GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W) UNTIL 28/0600

PART 2 GENERAL SYNOPSIS AT 21:00UTC

271400 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 5249S 03150W 16X6NM

3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4803S 02302W 4X1NM ICEBERG2 5330S 03213W

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 1017HPA 44S 60W MOV E DPN EXP 45S 55W BY 28/2100 EXTENDS CFNT AT 43S 58W 40S

59W 38S 60W

LOW 1025HPA 38S 37W MOV SE DPN EXP 43S 20W BY 28/1800

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-29

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR N 3 BACK SW 4 BY 28/0600 PROB OF FOG MIST NEXT SH

STARTING EARLY MORNING VIS MODERATE OCNL POOR

OUTER RIO DE LA PLATA: SECTOR N 3 BACK SW 4/5 WITH GUSTS BY 28/0600 PROB OF FOG

MIST NEXT SH STARTING EARLY MORNING VIS MODERATE OCNL POOR

URUGUAY SOUTH EAST COASTS: SECTOR N 3/4 BACK SW 6 WITH GUSTS BY 28/1800 PROB OF

ISOL RAIN STARTING EARLY MORNING VIS MODERATE OCNL POOR

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 3/4 BACK SW 5/6 WITH GUSTS BY

28/0900 PROB OF FOG MIST NEXT ISOL RAIN STARTING EARLY MORNING VIS MODERATE OCNL

POOR

RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 4 PROB OF ISOL RAIN STARTING EARLY

MORNING VIS MODERATE OCNL GOOD

PENINSULA DE VALDES COASTS(41S - 45S): SW 5 PROB OF RAIN SPELLS OF GOOD

WEATHER VIS MODERATE OCNL GOOD

GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 5 PROB OF RAIN SPELLS OF GOOD

WEATHER VIS MODERATE OCNL GOOD

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

GUSTS BY 28/1800 PROB OF SH STARTING EARLY MORNING VIS POOR OCNL VERY POOR

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

BY 28/1800 PROB OF RAIN SNOW FALL STARTING EARLY MORNING VIS POOR OCNL VERY

POOR

ISLAS MALVINAS COASTS: SECTOR W 5 VEER NW 7/8 WITH GUSTS BY 28/0900 DECR NW 7/6

WITH GUSTS BY 28/1800 PROB OF RAIN STARTING EVENING VIS MODERATE TO VERY POOR

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 5/6 WITH GUSTS PROB OF

RAIN VIS MODERATE TO POOR

REST OF THE AREA: SECTOR W 5 VEER SECTOR N 5/6 WITH GUSTS BY 28/0600 PROB OF

ISOL RAIN NEXT HVY RAIN VIS MODERATE TO POOR OCNL VERY POOR

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR W 5/6 WITH

GUSTS VEER SECTOR S 6/7 WITH GUSTS BY 28/1500 PROB OF HVY RAIN IMPR TOWARDS THE

END OF THE PERIOD VIS POOR OCNL VERY POOR

W OF 30 - N OF 45S: NE 5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE OCNL POOR

REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF ISOL RAIN IMPR TOWARDS THE

END OF THE PERIOD VIS MODERATE OCNL POOR

CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 5/6 WITH GUSTS PROB

OF ISOL RAIN NEXT HVY RAIN VIS MODERATE TO POOR

REST OF THE AREA: VRB 3/4 PROB OF RAIN VIS MODERATE

SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 8/9 WITH GUSTS PROB OF SH OF

SNOW VIS VERY POOR TO POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6 WITH GUSTS VEER NW

6/7 WITH GUSTS PROB OF SH SPELLS OF GOOD WEATHER VIS POOR OCNL MODERATE

REST OF THE AREA: NW 7/8 WITH GUSTS PROB OF SH STARTING EARLY MORNING VIS

MODERATE TO VERY POOR

DRAKE AREA (55S- 60S AND 60W- 67W): NW 7/9 WITH GUSTS BACK SECTOR W 7 WITH GUSTS

BY 28/1800 PROB OF RAIN SNOW FALL VIS POOR OCNL VERY POOR

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