METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 161200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-09-16, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 425: STRONG BARIC GRADIENT ON MOV NE PROVOKES WINDS FORCE 8 FROM SECTOR

N WITH GUST IN PENINSULA DE VALDES COASTS GOLFO DE SAN JORGE COASTS SOUTH

PATAGONIA COASTS CENTRAL WEST AREA (40S- 50S AND 40W- 60W)

WARNING 424: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR N WITH

GUST BETWEEN 35S-40S AND 30W-20W UNTIL 17/0000

PART 2 GENERAL SYNOPSIS AT 09:00UTC

HIGH 1026HPA 37S 59W MOV NE INTSF EXP 32S 44W BY 17/1200

LOW 999HPA 52S 69W MOV E DPN EXP 52S 49W BY 17/1200 EXTENDS CFNT AT 52S 69W 46S

67W 40S 70W MOV SE EXP 52S 49W 45S 52W 45S 52W 45S 56W BY 17/1200

LOW 996HPA 44S 27W MOV SE DPN EXTENDS CFNT AT 44S 27W 35S 38W 31S 53W MOV SE

151400 UTC 1.SEA ICE LIMIT 5527S 02000W 5408S 02618W 5439S 03218W 5557S 03757W

5658S 04316W 5914S 04813W 5921S 05247W 6157S 05654W 6223S 06033W 5937S 06337W

6115S 06559W 6053S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5733S 04608W 28X25NM

D33B 5926S 04753W 21X12NM A76C 5424S 02626W 17X6NM 3.ICEBERGS SMALLER THAN 10NM

D32 5736S 03857W 9X6NM D33C 6157S 05414W 9X5NM ICEBERG1 5801S 04806W 5X3NM

ICEBERG2 5956S 05143/W 5X3NM ICEBERG3 5621S 05024W 4X3NM ICEBERG4 5829S 05023W

3X1NM 4.ICEBERGS AREA A5516S 02000W 5001S 02000W 5000S 03909W 5820S 04000W

B5820S 04000W 5000S 03933W 6103S 06716W 6145S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-17

COASTAL AREAS:

INNER RIO DE LA PLATA: SE 3 BACK SECTOR N /4 BY 17/0300 VIS GOOD

OUTER RIO DE LA PLATA: SE 3 BACK SECTOR N /4 BY 17/0300 VIS GOOD

URUGUAY SOUTH EAST COASTS: VRB 3 BACK SECTOR N 3/4 BY 17/0000 VIS GOOD

MAR DEL PLATA COASTS(3617S - 3830S): VRB 3 VEER SECTOR N 4/5 BY 16/1800 INCR

5/6 WITH GUSTS BY 17/0300 VIS GOOD TO MODERATE

RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 6/7 WITH GUSTS BACK VRB 3/4

BY 17/0900 VIS POOR

PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/7 GUST WITH 8 INTENSITY BACK

SECTOR W 5/4 BY 17/0300 VIS VERY POOR TO MODERATE

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6/7 GUST WITH 8 INTENSITY BACK

SECTOR W 6/5 BY 16/2100 PROB OF MIST FOG PATCHES DURING THE MORNING VIS VERY

POOR TO POOR

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 6/7 GUST WITH 8 INTENSITY BACK

SECTOR W 5/4 BY 16/1800 PROB OF MIST FOG PATCHES DURING THE MORNING PROB OFISOL

RAIN STARTING EVENING IMPR VIS VERY POOR TO POOR

FIN DEL MUNDO COASTS(54S - 55S): NW 5/4 WITH GUSTS BACK SECTOR W 4/5 BY

16/1800 PROB OF DRIZZLE RAIN TOWARDS THE END OF THE PERIOD IMPR VIS MODERATE

ISLAS MALVINAS COASTS: SECTOR N 6/5 WITH GUSTS BACK SECTOR W 5 BY 17/0300 VIS

GOOD

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 7/8 WITH GUSTS BACK SW 5/6

WITH GUSTS BY 17/0000 PROB OF RAIN STORMS STARTING NIGTH IMPR VIS VERY POOR TO

POOR

E OF 40W: SECTOR S 6/5 WITH GUSTS DECR 4/3 BY 17/0600 PROB OF SH IMPR GRADUALLY

VIS MODERATE TO GOOD

REST OF THE AREA: SECTOR S 6/4 VEER VRB 3/4 BY 16/2100 VEER SECTOR N 5/6 WITH

GUSTS BY 17/0600 PROB OF SH DURING THE MORNING VIS MODERATE TO GOOD

CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SW 5/6 WITH GUSTS SECTOR W BY 17/0000

PROB OF ISOL RAIN DURING THE MORNING VIS MODERATE OCNL POOR

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SW 5/6 WITH GUSTS VEER NW 6/7 GUST

WITH 8 INTENSITY BY 16/1800 PROB OF DRIZZLE RAIN STARTING EARLY MORNING VIS VERY

POOR TO POOR

SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 56S: SECTOR W 6/7 WITH GUSTS PROB

OF ISOL SNOW FALL TOWARDS THE END OF THE PERIOD VIS POOR

REST OF THE AREA: SECTOR W 7/6 WITH GUSTS BACK VRB /3 BY 17/0000 VIS VERY POOR

TO GOOD

SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR W 6/7 WITH GUSTS DECR

6/5 BY 17/0900 BACK SECTOR S 5/4 BY 17/1200 PROB OF DRIZZLE RAIN STARTING NIGTH

VIS VERY POOR TO MODERATE

REST OF THE AREA: SECTOR W 6/7 VIS VERY POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6/5 WITH GUSTS BACK SECTOR S 4/3 BY

16/2100 INCR 4/5 BY 17/1200 VIS GOOD

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HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 161200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 16, SEPTEMBER 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

1155/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST BACK IN 60S-65S 50W-30W UNTIL 16/1500

1156/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV NE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN 62S-72S 90W-70W FROM 17/0000 UNTIL 17/2100

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 956HPA 62S 33W MOV E DPN

LOW 946HPA 68S 32W MOV E WKN

HIGH 978HPA 65S 55W MOV E INTSF

RIDGE 63S 90W 65S 85W 68S 80W MOV E INTSF

151400 UTC 1.SEA ICE LIMIT 5527S 02000W 5408S 02618W 5439S 03218W 5557S 03757W 5658S 04316W 5914S 04813W 5921S 05247W 6157S 05654W 6223S 06033W 5937S 06337W 6115S 06559W 6053S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5733S 04608W 28X25NM D33B 5926S 04753W 21X12NM A76C 5424S 02626W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D32 5736S 03857W 9X6NM D33C 6157S 05414W 9X5NM ICEBERG1 5801S 04806W 5X3NM ICEBERG2 5956S 05143/W 5X3NM ICEBERG3 5621S 05024W 4X3NM ICEBERG4 5829S 05023W 3X1NM 4.ICEBERGS AREA A5516S 02000W 5001S 02000W 5000S 03909W 5820S 04000W B5820S 04000W 5000S 03933W 6103S 06716W 6145S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-17

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 5 BY 17/0300 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 7/5 WITH GUSTS BACK SW 5/4 WITH GUSTS BY 17/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 5 BY 17/0300 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 7/5 WITH GUSTS BACK SW 5/4 WITH GUSTS BY 17/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE

GERLACHE STRAIT : SW 6 WITH GUSTS DECR SW 5/4 BY 16/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NIGTH VIS GOOD TO MODERATE

MARGARITA BAY : NW 3/4 VEER SECTOR N 5/6 BY 17/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL VIS GOOD TO MODERATE OCNL POOR

EREBUS Y TERROR GULF : SECTOR W 5/4 BACK SW 5 BY 16/2100 PROB OF MIST VIS MODERATE TO GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 5/4 DECR SW 5/4 BY 16/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 5/6 INCR SECTOR W 8 WITH GUSTS BY 16/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 6/5 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY 16/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR DURING THE NIGTH VIS VERY POOR TO MODERATE

NORTHERN WEDDELL SEA N OF 64S: SECTOR W 7/8 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 16/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: SW 7/8 WITH GUSTS VEER SECTOR W 5 WITH GUSTS BY 17/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 3/4 BACK NE 5/7 BY 16/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS GOOD TO MODERATE OCNL POOR=