METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 231200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-07-23, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 342: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH

GUST IN SOUTH WEST AREA (50S- 60S AND 40W- 60W)

PART 2 GENERAL SYNOPSIS AT 09:00UTC

221400 UTC 1.SEA ICE LIMIT 5759S 02000W 5605S 02618W 5803S 03217W 5835S 03758W

5937S 04316W 6142S 04814W 6210S 05247W 6229S 05655W 6338S 06032W 6413S 06336W

6530S 06559W 6602S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6118S 05113W 21X12NM

A81 6036S 05242W 28X25NM A76C 5204S 03142W 16X6NM 3.ICEBERGS SMALLER THAN 10NM

ICEBERG1 6148S 05202W 6X3NM 4.ICEBERGS AREA A5830S 02000W 4550S 02000W 5100S

03300W 5840S 03300W B5840S 03300W 5100S 03300W 5800S 05000W 6200S 05000W C6200S

05000W 5800S 05000W 6300S 06716W 6615S 06716W

HIGH 1026HPA 39S 54W MOV E DPN EXP 38S 43W BY 24/1200 EXTENDS RIDGE AT 38S 54W

46S 58W 49S 62W

LOW 966HPA 58S 30W MOV E EXTENDS CFNT AT 58S 30W 52S 41W 51S 51W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-24

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR W 3/4 WITH GUSTS FOG MIST DISSIPATING VIS MODERATE

TO GOOD

OUTER RIO DE LA PLATA: SECTOR W 3/4 WITH GUSTS FOG MIST DISSIPATING VIS MODERATE

TO GOOD

URUGUAY SOUTH EAST COASTS: SECTOR W 3/4 WITH GUSTS FOG MIST DISSIPATING VIS

MODERATE TO GOOD

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 3/4 WITH GUSTS PROB OF ISOL RAIN

VIS GOOD TO MODERATE

RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4/5 PROB OF ISOL RAIN VIS

GOOD TO MODERATE

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

RAIN VIS MODERATE OCNL POOR

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 WITH GUSTS PROB OF ISOL

RAIN VIS MODERATE OCNL POOR

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR E 4/5 INCR 5/6 WITH GUSTS BY 23/2100

PROB OF ISOL RAIN SNOW FALL VIS GOOD TO MODERATE OCNL POOR

FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4/5 WITH GUSTS PROB OF ISOL RAIN

SNOW FALL VIS MODERATE OCNL POOR

ISLAS MALVINAS COASTS: SECTOR W 4/5 WITH GUSTS PROB OF ISOL RAIN SNOW FALL VIS

MODERATE

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR S 5/6 WITH GUSTS PROB OF SH

RAIN VIS MODERATE OCNL POOR

REST OF THE AREA: SECTOR S 4/5 WITH GUSTS BACK SECTOR N WITH GUSTS BY 24/0300

VIS GOOD

CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 6/7 GUST WITH 8 INTENSITY

PROB OF ISOL RAIN VIS POOR OCNL VERY POOR

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 6/7 WITH GUSTS VEER SECTOR N

WITH GUSTS BY 24/0900 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE

SOUTH EAST AREA (50S- 60S AND 20W- 40W): NW 8 WITH GUSTS BACK SECTOR W WITH

GUSTS BY 23/1500 PROB OF ISOL SNOW FALL VIS VERY POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 6/7 GUST WITH 8 INTENSITY PROB

OF ISOL SNOW FALL VIS POOR OCNL VERY POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6/7 WITH GUSTS VIS POOR

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HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 231200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 23, JULY 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

997/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-72S 76W-70W UNTIL 23/1500

998/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-64S 70W-60W UNTIL 24/0600

999/2026 STRONG BARIC GRADIENT GERLACHE STRAIT MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-67S 70W-65W UNTIL 24/1200

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 960HPA 67S 38W MOV E DPN

2OW 985HPA 65S 58W MOV E DPN

3IGH 1026HPA 62S 90W MOV E INTSF EXTENDS RIDGE AT 62S 90W 63S 80W 65S 73W MOV E

421400 UTC 1.SEA ICE LIMIT 5759S 02000W 5605S 02618W 5803S 03217W 5835S 03758W 5937S 04316W 6142S 04814W 6210S 05247W 6229S 05655W 6338S 06032W 6413S 06336W 6530S 06559W 6602S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6118S 05113W 21X12NM A81 6036S 05242W 28X25NM A76C 5204S 03142W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6148S 05202W 6X3NM 4.ICEBERGS AREA A5830S 02000W 4550S 02000W 5100S 03300W 5840S 03300W B5840S 03300W 5100S 03300W 5800S 05000W 6200S 05000W C6200S 05000W 5800S 05000W 6300S 06716W 6615S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-24

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 9 WITH GUSTS DECR SW 5/6 WITH GUSTS BY 24/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 5/6 WITH GUSTS INCR SW 7/8 WITH GUSTS BY 24/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS MODERATE TO POOR

MAR DE LA FLOTA COASTS W OF 60W: SW 9 WITH GUSTS DECR SW 5/6 WITH GUSTS BY 24/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SW 5/6 WITH GUSTS INCR SW 7/8 WITH GUSTS BY 24/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS MODERATE TO POOR

GERLACHE STRAIT : SW 7/8 WITH GUSTS VEER SECTOR W 7 WITH GUSTS BY 23/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE

MARGARITA BAY : SW 7/8 WITH GUSTS VEER SECTOR W 7 WITH GUSTS BY 23/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE

EREBUS Y TERROR GULF : SW 6/7 WITH GUSTS INCR SW 8 WITH GUSTS BY 23/1800 PROB OF COASTAL BLIZZARD VIS GOOD TO MODERATE

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 6/7 GUST WITH 8 INTENSITY DECR SW 6/5 WITH GUSTS BY 23/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO POOR

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 7/8 WITH GUSTS DECR SW 5 WITH GUSTS BY 23/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 7/8 WITH GUSTS INCR SECTOR W 9 WITH GUSTS BY 23/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS VERY POOR TO MODERATE

NORTHERN WEDDELL SEA N OF 65S: SW 5/6 WITH GUSTS VEER SECTOR W 7/8 WITH GUSTS BY 23/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 4/5 WITH GUSTS BACK SW 7 WITH GUSTS BY 23/2100 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL VERY POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 5/7 INCR SE 8 WITH GUSTS BY 23/1800 PROB OF MIST PROB OFCOASTAL BLIZZARD IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE=