METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 160000

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-08-16, 00:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 380: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W

WITH GUST BETWEEN 40S-50S 20W-30W UNTIL 16/0600

WARNING 379: STRONG BARIC GRADIENT ON MOV E WILL PROVOKE WINDS FORCE 8 WITH GUST

IN DRAKE AREA (55S- 60S AND 60W- 67W) FROM 16/2100

WARNING 378: STRONG BARIC GRADIENT ON MOV E WILL PROVOKE WINDS FORCE 8 FROM

SECTOR N WITH GUST BETWEEN 35S-40S 40W-60W FROM 16/0600

PART 2 GENERAL SYNOPSIS AT 21:00UTC

151400 UTC 1.SEA ICE LIMIT 5448S 02000W 6458S 06350W 6453S 06351W 6403S 06137W

6116S 05515W 6213S 05906W 6228S 06019W 6455S 06324W 6348S 06140W 6210S 05834W

6240S 06055W 6220S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6023S 05226W 21X12NM

A81 5906S 05111W 28X25NM A76C 5249S 03031W 16X6NM A83 6104S 05049W 12X7NM

3.ICEBERGS SMALLER THAN 10NM D33C 6134S 05418W 9X5NM ICEBERG1 6027S 05119W 5X3NM

ICEBERG2 6128S 05333W 5X3NM ICEBERG3 6121S 05301W 6X4NM 4.ICEBERGS AREA A5804S

02000W 4557S 02000W 5000S 03000W 5427S 02951W B5427S 02951W 5100S 03000W 5402S

04500W 5914S 04504W C5914S 04504W 5400S 04500W 5900S 05501W 6145S 05500W D6145S

05500W 6001S 05506W 6000S 06716W 6240S 06716W

HIGH 1029HPA 35S 42W MOV E

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-17

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR S 3 PROB OF ISOL DRIZZLE RAIN VIS MODERATE OCNL

POOR

OUTER RIO DE LA PLATA: SECTOR S 3 PROB OF ISOL DRIZZLE RAIN VIS MODERATE OCNL

POOR

URUGUAY SOUTH EAST COASTS: SECTOR N 5/4 WITH GUSTS VEER NE 6/7 WITH GUSTS BY

16/0600 BACK SECTOR N 5/4 WITH GUSTS BY 16/1500 PROB OF RAIN STORMS VIS

MODERATE

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5 WITH GUSTS BACK SECTOR S 4

WITH GUSTS BY 16/1200 PROB OF ISOL RAIN IMPR STARTING EARLY MORNING VIS MODERATE

TO GOOD

RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/4 WITH GUSTS BACK SW 4/5

WITH GUSTS BY 16/1200 PROB OF DRIZZLE RAIN IMPR STARTING EVENING VIS MODERATE TO

GOOD

PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/5 WITH GUSTS BACK SW 5/6

WITH GUSTS BY 16/0900 PROB OF ISOL RAIN NEXT UNSTABLE STARTING EARLY MORNING VIS

MODERATE

GOLFO DE SAN JORGE COASTS(45S - 48S): SW 5/6 WITH GUSTS UNSTABLE ISOL RAIN

STARTING EVENING VIS MODERATE OCNL GOOD

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 4 WITH GUSTS VEER SECTOR S 5/6

WITH GUSTS BY 16/0300 SNOW FALL VIS MODERATE

FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 3/4 WITH GUSTS VEER NW 5 WITH GUSTS

BY 16/2100 UNSTABLE VIS GOOD OCNL MODERATE

ISLAS MALVINAS COASTS: SECTOR N 4 WITH GUSTS VEER SE 4 WITH GUSTS BY 16/1200

UNSTABLE IMPR STARTING EARLY MORNING VIS MODERATE OCNL GOOD

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SW 5/4 WITH GUSTS UNSTABLE DURING

THE EARLY MORNING VIS MODERATE TO GOOD

E OF 50 - W OF 40W: VRB 3/4 BACK SECTOR N 5/6 WITH GUSTS BY 16/0600 INCR 7/8

WITH GUSTS BY 16/1500 PROB OF RAIN STORMS STARTING EARLY MORNING VIS GOOD TO

POOR

REST OF THE AREA: NE 6/7 GUST WITH 8 INTENSITY BACK SECTOR N 7/8 WITH GUSTS BY

16/0600 BACK SECTOR W 5 WITH GUSTS BY 16/1800 PROB OF RAIN STORMS IMPR TOWARDS

THE END OF THE PERIOD VIS POOR TO GOOD

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

6/5 WITH GUSTS BY 16/0600 PROB OF SH RAIN VIS POOR TO MODERATE

REST OF THE AREA: SW 6/5 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY 16/0600

PROB OF DRIZZLE VIS MODERATE OCNL GOOD

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

SECTOR N 5/6 WITH GUSTS BY 16/1800 PROB OF RAIN STORMS STARTING EVENING VIS GOOD

TO POOR

N OF 45 - W OF 50W: SECTOR N 5 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY

16/1500 PROB OF RAIN STORMS IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL

POOR TO GOOD

REST OF THE AREA: SECTOR N 5 WITH GUSTS VEER SECTOR S 4/5 WITH GUSTS BY 16/1500

PROB OF RAIN VIS MODERATE

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

VEER SECTOR W 5 WITH GUSTS BY 16/1800 PROB OF ISOL SNOW FALL VIS MODERATE OCNL

POOR

REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF ISOL SNOW FALL VIS MODERATE

OCNL GOOD

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

WITH GUSTS BY 16/2100 PROB OF ISOL SNOW FALL VIS GOOD TO MODERATE

N OF 55 - W OF 50W: SECTOR W 4 WITH GUSTS PROB OF RAIN SNOW FALL VIS MODERATE

REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF ISOL RAIN SNOW FALL VIS

MODERATE

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5 WITH GUSTS VEER NW 7/8 WITH GUSTS

BY 16/2100 PROB OF ISOL SNOW FALL VIS GOOD OCNL MODERATE TO POOR

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HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 160000

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

00:00 UTC 16, AUGUST 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

1055/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-65S 90W-70W UNTIL 17/0300

1056/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-64S 70W-50W FROM 16/2100 UNTIL 17/1500

PART 2 GENERAL SYNOPSIS AT 21:00UTC

LOW 973HPA 72S 48W MOV E DPN

LOW 987HPA 63S 54W MOV E DPN

LOW 992HPA 64S 71W MOV E DPN

RIDGE 60S 33W 64S 32W 67S 30W MOV E WKN

RIDGE 60S 80W 63S 80W 67S 82W MOV E WKN

151400 UTC 1.SEA ICE LIMIT 5448S 02000W 6458S 06350W 6453S 06351W 6403S 06137W 6116S 05515W 6213S 05906W 6228S 06019W 6455S 06324W 6348S 06140W 6210S 05834W 6240S 06055W 6220S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6023S 05226W 21X12NM A81 5906S 05111W 28X25NM A76C 5249S 03031W 16X6NM A83 6104S 05049W 12X7NM 3.ICEBERGS SMALLER THAN 10NM D33C 6134S 05418W 9X5NM ICEBERG1 6027S 05119W 5X3NM ICEBERG2 6128S 05333W 5X3NM ICEBERG3 6121S 05301W 6X4NM 4.ICEBERGS AREA A5804S 02000W 4557S 02000W 5000S 03000W 5427S 02951W B5427S 02951W 5100S 03000W 5402S 04500W 5914S 04504W C5914S 04504W 5400S 04500W 5900S 05501W 6145S 05500W D6145S 05500W 6001S 05506W 6000S 06716W 6240S 06716W

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-17

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 3/4 VEER NW 5/6 BY 16/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 7/8 WITH GUSTS VEER NW 6/5 WITH GUSTS BY 16/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD

MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3/4 VEER NW 5/6 BY 16/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 6/8 WITH GUSTS VEER NW 6/5 WITH GUSTS BY 16/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD

GERLACHE STRAIT : NE 3/4 BACK NW 4/3 BY 16/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE

MARGARITA BAY : NE 4/3 BACK SECTOR N 3/4 BY 16/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD

EREBUS Y TERROR GULF : SW 3/4 VEER NW 4/5 BY 16/1500 PROB OF MIST VIS GOOD TO MODERATE

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 4/5 VEER SECTOR N 7/8 BY 16/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/3 VEER NE 3/3 BY 16/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/3 VEER SECTOR N 3/4 BY 16/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE

NORTHERN WEDDELL SEA N OF 64S: SECTOR W 5/7 WITH GUSTS VEER NW 5/4 BY 16/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR N 5/6 BACK SECTOR W 4/3 BY 16/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 5/7 WITH GUSTS VEER SECTOR E 6/4 BY 16/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR=