METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 071200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-04-07, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 143: LOW 1005HPA AT 30S 57W MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8

FROM SECTOR S WITH GUST IN OUTER RIO DE LA PLATA URUGUAY SOUTH EAST COASTS FROM

08/0000

WARNING 142: LOW 1005HPA AT 30S 57W MOV SE DEEPENING EXPECTED 36S 49W BY 08/1200

WILL PROVOKE WINDS FORCE 8 FROM SECTOR E WITH GUST BETWEEN 35S-40S AND 55W-40W

FROM 07/2100

PART 2 GENERAL SYNOPSIS AT 09:00UTC

061400 UTC 1.SEA ICE LIMIT 7031S 02000W 6717S 02922W 6036S 03001W 6536S 03056W

6301S 03311W 6144S 04133W 6222S 04918W 6345S 05306W 6311S 05745W 6358S 06227W

6514S 06429W 6637S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5926S 03622W 16X7NM

3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5115S 03256W 3X1NM ICEBERG2 4851S 03347W

3X1NM ICEBERG3 4709S 02915W 2X1NM ICEBERG4 4749S 02929W 6X3NM ICEBERG5 4957S

03359W 5X3NM ICEBERG6 5002S 02943W 3X1NM ICEBERG7 4502S 03456W 2X1NM ICEBERG8

4736S 02917W 4X2NM ICEBERG9 4729S 02917W 3X1NM ICEBERG10 5933S 03611W 3X1NM

4.ICEBERGS AREA A 7127S 02000W 4600S 02000W 4300S 02500W 4300S 03500W 6124S

03500W B 6124S 03500W 4900S 03500W 4900S 03900W 5100S 04200W 6212S 04200W C

6212S 04200W 5700S 04200W 5900S 05000W 6100S 05500W 6421S 05500W D 6421S 05500W

6100S 05500W 6100S 06100W 6500S 06716W 6645S 06716W

LOW 1005HPA 30S 57W MOV SE DPN EXP 36S 49W BY 08/1200 EXTENDS WFNT AT 30S 57W

33S 52W MOV SE EXP 36S 49W 38S 45W 36S 37W BY 08/1200

HIGH 1025HPA 37S 39W MOV NE WKN EXP 35S 24W BY 08/1200

HIGH 1020HPA 46S 65W MOV E EXP 46S 53W BY 08/1200

LOW 1008HPA 50S 50W MOV E EXTENDS CFNT AT 50S 50W 44S 58W 41S 65W MOV E EXP 50S

20W 45S 34W BY 08/1200

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-8

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR S 4/5 WITH GUSTS INCR 5/6 WITH GUSTS BY 07/2100

DECR 5/4 WITH GUSTS BY 8/0600 PROB OF RAIN IMPR TOWARDS THE END OF THE PERIOD

VIS POOR OCNL VERY POOR

OUTER RIO DE LA PLATA: SE 4/5 WITH GUSTS VEER SECTOR S 6/7 GUST WITH 8 INTENSITY

BY 07/2100 PROB OF RAIN IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO

POOR

URUGUAY SOUTH EAST COASTS: SECTOR E 5 WITH GUSTS VEER SECTOR S 6/8 WITH GUSTS BY

8/0000 PROB OF RAIN STORMS VIS VERY POOR

MAR DEL PLATA COASTS(3617S - 3830S): SE 4/5 WITH GUSTS INCR 5/6 WITH GUSTS BY

07/1500 INCR 6/7 WITH GUSTS BY 8/0600 PROB OF SH RAIN VIS POOR

RINCON BAHIA BLANCA COASTS(3830S - 41S): SE 3/4 PROB OF MIST FOG PATCHES VIS

MODERATE

PENINSULA DE VALDES COASTS(41S - 45S): VRB 3 BACK SECTOR N BY 8/0300 PROB OF

MIST FOG PATCHES VIS MODERATE

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 3/4 PROB OF MIST FOG PATCHES

VIS MODERATE

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5 WITH GUSTS VEER VRB 3/4 BY

07/1500 VIS GOOD

FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 6/7 WITH GUSTS VIS POOR

ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS VIS MODERATE OCNL POOR

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR S 5/4 WITH GUSTS VEER VRB 3

BY 07/1800 VIS MODERATE TO GOOD

REST OF THE AREA: NE 5/6 WITH GUSTS VEER E 7/8 GUST WITH 9 INTENSITY BY 07/2100

PROB OF HVY RAIN STORMS VIS VERY POOR

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

RAIN STARTING NIGTH VIS MODERATE

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 5 WITH GUSTS BACK VRB 3/4 BY

07/1800 BACK SECTOR S 4 BY 8/0300 PROB OF ISOL RAIN DURING THE MORNING VIS

MODERATE TO GOOD

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

GUSTS PROB OF DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS POOR

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

SPELLS OF GOOD WEATHER PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6/7 WITH GUSTS PROB OF DRIZZLE RAIN

SPELLS OF GOOD WEATHER VIS POOR OCNL VERY POOR

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HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 071200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 07, APRIL 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

465/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 60S-63S 65W-50W UNTIL 07/2100

466/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-64S 90W-82W UNTIL 08/0600

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 970HPA 64S 50W MOV SE DPN

LOW 972HPA 68S 72W MOV E WKN

LOW 979HPA 63S 62W MOV E WKN

RIDGE 63S 24W 67S 34W 70S 34W MOV NE INTSF

061400 UTC 1.SEA ICE LIMIT 7031S 02000W 6717S 02922W 6036S 03001W 6536S 03056W 6301S 03311W 6144S 04133W 6222S 04918W 6345S 05306W 6311S 05745W 6358S 06227W 6514S 06429W 6637S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5926S 03622W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5115S 03256W 3X1NM ICEBERG2 4851S 03347W 3X1NM ICEBERG3 4709S 02915W 2X1NM ICEBERG4 4749S 02929W 6X3NM ICEBERG5 4957S 03359W 5X3NM ICEBERG6 5002S 02943W 3X1NM ICEBERG7 4502S 03456W 2X1NM ICEBERG8 4736S 02917W 4X2NM ICEBERG9 4729S 02917W 3X1NM ICEBERG10 5933S 03611W 3X1NM 4.ICEBERGS AREA A 7127S 02000W 4600S 02000W 4300S 02500W 4300S 03500W 6124S 03500W B 6124S 03500W 4900S 03500W 4900S 03900W 5100S 04200W 6212S 04200W C 6212S 04200W 5700S 04200W 5900S 05000W 6100S 05500W 6421S 05500W D 6421S 05500W 6100S 05500W 6100S 06100W 6500S 06716W 6645S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-8

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 8 WITH GUSTS DECR SECTOR W 6/5 WITH GUSTS BY 07/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 9 WITH GUSTS VEER NE 8 WITH GUSTS BY 07/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO POOR

MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 8 WITH GUSTS DECR SECTOR W 6/5 WITH GUSTS BY 07/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 9 WITH GUSTS VEER NW 8 WITH GUSTS BY 07/1800 AFTERWARDS NW 5/4 BY 8/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR

GERLACHE STRAIT : SW 3/4 VEER NE 4/3 BY 8/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE NIGTH VIS POOR TO MODERATE OCNL GOOD

MARGARITA BAY : NE 3/4 VEER SECTOR E 3 BY 07/1800 VIS GOOD

EREBUS Y TERROR GULF : SW 7/8 WITH GUSTS DECR SW 10/6 WITH GUSTS BY 8/0900 PROB OF COASTAL BLIZZARD SPELLS OF GOOD WEATHER DURING THE EVENING VIS GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 65S: SECTOR W 4/5 WITH GUSTS VEER NW 7/8 WITH GUSTS BY 07/1500 AFTERWARDS SECTOR W 5 WITH GUSTS BY 8/0600 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 4/5 VEER SECTOR E 5 BY 8/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 3/4 VEER SECTOR E 4/5 BY 07/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

NORTHERN WEDDELL SEA W OF 40W: NW 8 WITH GUSTS BACK SECTOR W 8 GUST WITH 9 INTENSITY BY 07/1800 AFTERWARDS SECTOR W 7/6 BY 8/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

NORTHERN WEDDELL SEA REST OF THE AREA: NE 4/5 VEER SECTOR E 4/5 BY 07/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 3/4 VEER NE 4/5 BY 07/2100 VIS GOOD=