METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 201200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-09-20, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 429: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH

GUST BETWEEN 35S-40S AND 35W-50W FROM 21/0000

WARNING 428: LOW 992HPA AT 44S 67W MOV E DEEPENING WILL PROVOKE WINDS FORCE 8

FROM SECTOR S WITH GUST IN RINCON BAHIA BLANCA COASTS PENINSULA DE VALDES COASTS

GOLFO DE SAN JORGE COASTS CENTRAL WEST AREA (40S- 50S AND 40W- 60W) FROM

20/2100

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 992HPA 44S 67W MOV E DPN EXTENDS CFNT44S 67W 37S 67W MOV NE

HIGH 1030HPA 33S 33W MOV E

CFNT AT 56S 46W 53S 56W MOV NE INTSF

191400 UTC 1.SEA ICE LIMIT 5529S 02000W 5408S 02617W 5336S 03217W 5536S 03757W

5710S 04316W 5821S 04813W 5954S 05248W 6232S 05655W 6252S 06033W 6358S 06336W

6017S 06558W 6051S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5742S 04531W 28X25NM

D33B 5934S 04550W 21X12NM A76C 5430S 02629W 17X6NM 3.ICEBERGS SMALLER THAN 10NM

D32 5701S 03820W 9X6NM ICEBERG1 57181S 04733W 5X3NM ICEBERG2 5910S 05042W 5X3NM

ICEBERG3 5621S 05024W 4X3NM ICEBERG4 5807S 04958W 3X1NM 4.ICEBERGS AREA A5600S

02000W 5000S 02000W 5900S 04800W 5300S 04800W 5000S 04000W B5900S 06200W 6500S

06500W 5900S 04800W 5300S 04800W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-21

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR N 4 VEER SECTOR S 6/7 WITH GUSTS BY 20/2100 PROB

OF HVY RAIN STORMS STARTING EVENING STARTING NIGTH IMPR MIST DURING THE MORNING

VIS MODERATE TO POOR

OUTER RIO DE LA PLATA: SECTOR N 5 WITH GUSTS VEER SECTOR S 6/7 WITH GUSTS PROB

OF HVY RAIN STORMS STARTING EVENING STARTING NIGTH IMPR MIST DURING THE MORNING

VIS MODERATE TO POOR

URUGUAY SOUTH EAST COASTS: SECTOR N 4 VEER SECTOR S 6/7 WITH GUSTS BY 20/2100

PROB OF RAIN STORMS STARTING EVENING STARTING NIGTH IMPR MIST DURING THE MORNING

VIS MODERATE TO POOR

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 4/5 WITH GUSTS VEER SECTOR S 6/7

WITH GUSTS BY 20/1800 PROB OF HVY RAIN STORMS NXT PROB OF SH STARTING NIGTH VIS

MODERATE OCNL POOR

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

6/8 WITH GUSTS PROB OF HVY RAIN STORMS NXT PROB OF SH STARTING NIGTH VIS

MODERATE TO POOR

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

6/8 WITH GUSTS BY 20/2100 PROB OF HVY SH RAIN SPELLS OF GOOD WEATHER VIS

MODERATE TO POOR

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 6 WITH GUSTS INCR 8 BY 20/1800

PROB OF SH RAIN NXT PROB OFISOL RAIN AND SNOW MIXTURE STARTING NIGTH VIS POOR TO

MODERATE

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 6/7 WITH GUSTS PROB OF SH RAIN AND

SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR

FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 6/5 WITH GUSTS PROB OF ISOL SNOW

FALL VIS MODERATE

ISLAS MALVINAS COASTS: SECTOR S 5/6 WITH GUSTS PROB OF ISOL SNOW FALL VIS

MODERATE

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 35 - W OF 50W: SECTOR N 6/8 WITH GUSTS

PROB OF ISOL RAIN STORMS SPELLS OF GOOD WEATHER VIS MODERATE TO POOR

E OF 35W: SECTOR W 5 WITH GUSTS VEER SECTOR N 6 WITH GUSTS PROB OF SH RAIN

STARTING EARLY MORNING VIS MODERATE

REST OF THE AREA: SECTOR N 6/7 WITH GUSTS VEER SECTOR W PROB OF INTERMITTENT SH

RAIN VIS MODERATE OCNL POOR

CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 6/7 WITH GUSTS VEER SECTOR N

PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR

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

SECTOR S 8 WITH GUSTS PROB OF SH RAIN VIS POOR

REST OF THE AREA: SECTOR N 6/7 WITH GUSTS PROB OF SH RAIN SPELLS OF GOOD

WEATHER VIS MODERATE OCNL POOR

SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 5 WITH GUSTS VEER SECTOR S 6

WITH GUSTS PROB OF ISOL RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS

MODERATE OCNL POOR

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

SNOW FALL VIS MODERATE

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 6 WITH GUSTS VEER SECTOR W 5 WITH

GUSTS PROB OF INTERMITTENT SNOW FALL VIS MODERATE OCNL POOR

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HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 201200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 20, 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

RIDGE 988HPA 63S 54W MOV E WKN

HIGH 991HPA 64S 48W MOV E INTSF EXTENDS RIDGE AT 64S 48W 67S 43W 69S 32W MOV E

RIDGE 60S 80W 64S 75W 68S 70W MOV E

191400 UTC 1.SEA ICE LIMIT 5529S 02000W 5408S 02617W 5336S 03217W 5536S 03757W 5710S 04316W 5821S 04813W 5954S 05248W 6232S 05655W 6252S 06033W 6358S 06336W 6017S 06558W 6051S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5742S 04531W 28X25NM D33B 5934S 04550W 21X12NM A76C 5430S 02629W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D32 5701S 03820W 9X6NM ICEBERG1 57181S 04733W 5X3NM ICEBERG2 5910S 05042W 5X3NM ICEBERG3 5621S 05024W 4X3NM ICEBERG4 5807S 04958W 3X1NM 4.ICEBERGS AREA A5600S 02000W 5000S 02000W 5900S 04800W 5300S 04800W 5000S 04000W B5900S 06200W 6500S 06500W 5900S 04800W 5300S 04800W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-21

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 5 WITH GUSTS VEER NW 5/7 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 5/6 WITH GUSTS VEER SECTOR W 5/5 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE

MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 5 WITH GUSTS VEER NW 6/7 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: SW 5/6 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE

GERLACHE STRAIT : SW 4/3 BACK NE 4/5 BY 21/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE

MARGARITA BAY : NE 4/3 BACK SECTOR N 4/6 BY 21/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NIGTH VIS MODERATE TO POOR

EREBUS Y TERROR GULF : NW 3/4 BACK SW 4/5 BY 21/0000 PROB OF MIST VIS MODERATE OCNL POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 4/5 WITH GUSTS VEER NW 6/7 BY 20/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 5/7 WITH GUSTS BACK SECTOR W 6/5 BY 21/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 4/5 BACK SECTOR W 5/6 WITH GUSTS BY 20/2100 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS NOON VIS MODERATE TO VERY POOR

NORTHERN WEDDELL SEA N OF 64S: SECTOR S 3/4 VEER SECTOR W 4/3 BY 20/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS VERY POOR TO MODERATE OCNL GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 4/5 VEER SECTOR W 4/3 BY 20/1800 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SE 5/4 BY 20/1800 PROB OF MIST VIS GOOD TO MODERATE=