METAREA 6 bulletinset


HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 161200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 16, AUGUST 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

1057/2026 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

1058/2026 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 09:00UTC

LOW 976HPA 63S 88W MOV E DPN

LOW 991HPA 62S 62W MOV E DPN

LOW 987HPA 67S 58W MOV E DPN

RIDGE 60S 70W 64S 70W 67S 69W MOV E WKN

161400 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 6022S 05218W 21X12NM A81 5904S 05105W 28X25NM A76C 5250S 03026W 16X6NM A83 6108S 05033W 12X7NM 3.ICEBERGS SMALLER THAN 10NM D33C 6140S 05419W 9X5NM ICEBERG1 6027S 05119W 5X3NM ICEBERG2 6123S 05356W 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 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-17

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 5/6 VEER NW 7/8 BY 16/2100 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 5/7 WITH GUSTS VEER NW 8 WITH GUSTS BY 17/0300 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 5/6 VEER NW 7/8 WITH GUSTS BY 16/2100 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 5/7 WITH GUSTS VEER NW 8 WITH GUSTS BY 17/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD

GERLACHE STRAIT : SECTOR N 3/4 VEER NE 5/7 GUST WITH 8 INTENSITY BY 17/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE

MARGARITA BAY : NE 4/5 BACK N 4/3 BY 17/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD

EREBUS Y TERROR GULF : NW 3/4 BACK SW 4/5 BY 16/1800 PROB OF MIST VIS GOOD TO MODERATE

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR N 7/8 WITH GUSTS BACK SECTOR W 6/5 BY 16/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 4/5 VEER SE 5/5 BY 17/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 3/4 VEER SE 5/6 BY 17/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA N OF 64S: SECTOR W 5/6 WITH GUSTS VEER NW 5/4 BY 17/0300 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 SW 4/3 BY 17/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 7/8 WITH GUSTS VEER SECTOR E 6/4 BY 16/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE=


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 161200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-08-16, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 379: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 WITH GUST IN DRAKE

AREA (55S- 60S AND 60W- 67W) FROM 17/0000

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 1006HPA 50S 62W MOV E WKN

LOW 1008HPA 44S 62W MOV SE DPN EXTENDS CFNT AT 44S 62W 39S 64W MOV SE EXP 45S

46W 41S 45W 36S 56W BY 17/1200

HIGH 1031HPA 35S 37W MOV NE INTSF EXP 31S 30W BY 17/1200

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 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-17

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR S 3 BACK SE 4/5 BY 17/0600 PROB OF MIST FOG

PATCHES DRIZZLE VIS MODERATE

OUTER RIO DE LA PLATA: VRB 3 VEER SECTOR S 4 BY 17/0600 PROB OF ISOL MIST FOG

PATCHES RAIN SPELLS OF GOOD WEATHER VIS MODERATE

URUGUAY SOUTH EAST COASTS: SECTOR N 5 BACK SECTOR S 3/4 BY 16/2100 PROB OF

DRIZZLE RAIN VIS POOR

MAR DEL PLATA COASTS(3617S - 3830S): VRB 3 BACK SECTOR S BY 16/2100 INCR 4/5

BY 17/0900 PROB OF DRIZZLE RAIN MIST FOG PATCHES VIS POOR

RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 3 BACK SECTOR S 4/5 BY

16/2100 PROB OF DRIZZLE FOG AND MIST IN PATCHES VIS POOR

PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 5 WITH GUSTS VEER SECTOR W 3/4

BY 17/0600 PROB OF ISOL RAIN PROB OF MIST FOG PATCHES VIS POOR

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 5 WITH GUSTS VEER SECTOR W BY

17/0600 FOG PATCHES DRIZZLE VIS POOR

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 5 WITH GUSTS VEER SECTOR W 4 BY

17/0600 PROB OF MIST FOG PATCHES DRIZZLE RAIN VIS POOR

FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 4/3 VEER NW 5/6 WITH GUSTS BY

17/0000 MIST FOG PATCHES VIS POOR

ISLAS MALVINAS COASTS: VRB 3/4 PROB OF DRIZZLE RAIN MIST FOG PATCHES VIS POOR

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SW 5/4 VEER SECTOR W 4/3 BY 17/0600

VIS GOOD

REST OF THE AREA: SECTOR N 6/7 WITH GUSTS BACK SECTOR S 5/4 BY 17/0600 PROB OF

RAIN STORMS VIS POOR

CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 5/6 WITH GUSTS PROB OF ISOL

RAIN VIS MODERATE OCNL POOR

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

SECTOR N 6/7 WITH GUSTS BY 16/2100 PROB OF RAIN STORMS STARTING EVENING VIS

MODERATE TO POOR

REST OF THE AREA: SECTOR N 5/4 VEER SECTOR W BY 17/0000 INCR 6/7 WITH GUSTS BY

17/0600 PROB OF RAIN STORMS PROB OF SH VIS POOR

SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 6/5 INCR 6/7 WITH GUSTS BY

17/0300 PROB OF SNOW FALL STARTING EARLY MORNING VIS MODERATE OCNL POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W): SW 4/5 INCR 5/6 BY 16/1800 VEER NW 6/7

GUST WITH 8 INTENSITY BY 17/0600 VIS MODERATE TO POOR

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

BY 17/0000 LOW PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE TO VERY

POOR

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