1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-29, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 298: LOW 975HPA AT 57S 56W EXPECTED BY 30/0000 WILL PROVOKE WINDS FORCE
8 FROM SW WITH GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS
MALVINAS COASTS FROM 30/0300
WARNING 297: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN FIN DEL MUNDO COASTS UNTIL 30/0000
WARNING 296: LOW 989HPA AT 42S 42W MOV SE DEEPENING EXPECTED 53S 28W BY 30/1200
PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST BETWEEN 40S-50S 20W-40W FROM
29/1800
WARNING 295: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR N WITH
GUST BETWEEN 35S-50S AND 20W-40W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
281400 UTC 1.SEA ICE LIMIT 6002S 02000W 5716S 02618W 5749S 03217W 5758S 03757W
5836S 04317W 5911S 04814W 6130S 05247W 6200S 05655W 6326S 06033W 6411S 06337W
6527S 06559W 6613S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5253S 03142W 16X6NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4739S 02253W 4X1NM ICEBERG2 5248S 03241W
3X1NM 4.ICEBERGS AREA A60015S 02000W 4200S 02000W 5035S 03500W 5830S 03300W
B58030S 03300W 5130S 03430W 5620S 04940W 5935S 04815W C58035S 04515W 5620S
04840W 6150S 06716W 6320S 06716W
LOW 989HPA 42S 42W MOV SE DPN EXP 53S 28W BY 30/1200 EXTENDS CFNT AT 42S 41W 31S
43W 25S 48W MOV E
LOW 998HPA 50S 49W MOV E WKN
HIGH 1034HPA 42S 24W MOV E
CFNT AT 59S 45W 53S 50W MOV E
HIGH 1024HPA 33S 64W MOV E EXP 34S 53W BY 30/1200
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-30
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 4 BACK SECTOR S BACK NE BY 30/0600 PROB OF MIST
DURING THE MORNING VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SECTOR S 4/5 WITH GUSTS BACK SECTOR N PROB OF SH DURING
THE EVENING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 4 BACK SECTOR S BACK NE PROB OF MIST DURING
THE MORNING VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 5 WITH GUSTS BACK SECTOR W PROB
OF SH IMPR STARTING NIGTH VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 5 WITH GUSTS BACK SECTOR N PROB OF
SH DURING THE MORNING VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5/6 WITH GUSTS PROB OF SH
DURING THE MORNING WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 5 WITH GUSTS BACK SW 7/8 WITH
GUSTS BY 30/1200 PROB OF SH RAIN AND SNOW MIXTURE STARTING EARLY MORNING VIS
MODERATE TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 6 WITH GUSTS BACK SW 7/8 WITH
GUSTS BY 30/0300 PROB OF SH OF RAIN SH OF SNOW STARTING EVENING VIS MODERATE TO
POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 7/8 WITH GUSTS BACK SW 8 WITH GUSTS
BY 30/0300 PROB OF SH RAIN AND SNOW MIXTURE NXT PROB OF SH OF SNOW STARTING
NIGTH VIS MODERATE TO POOR
ISLAS MALVINAS COASTS: SECTOR W 6/7 WITH GUSTS BACK SW 8 WITH GUSTS BY 30/0600
PROB OF SH RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 8 WITH GUSTS BACK SECTOR W
7/6 WITH GUSTS PROB OF ISOL SH RAIN VIS POOR TO MODERATE
REST OF THE AREA: SECTOR W 7/5 WITH GUSTS PROB OF SH SPELLS OF GOOD WEATHER VIS
POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) S OF 45S: SECTOR N 7/8 WITH GUSTS BACK
SECTOR W WITH GUSTS PROB OF HVY RAIN NXT PROB OF SH RAIN AND SNOW MIXTURE
STARTING EARLY MORNING VIS POOR
REST OF THE AREA: SECTOR N 8 WITH GUSTS BACK SECTOR W 7/6 WITH GUSTS PROB OF SH
RAIN VIS POOR OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 7/6 WITH GUSTS PROB OF ISOL
RAIN NXT PROB OF SH RAIN AND SNOW MIXTURE STARTING EARLY MORNING VIS MODERATE
OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 6/7 GUST WITH 8
INTENSITY PROB OF HVY RAIN SNOW FALL STARTING NIGTH VIS MODERATE TO POOR
REST OF THE AREA: SECTOR N 7 WITH GUSTS BACK SECTOR S 6/5 WITH GUSTS PROB OF SH
OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50W: SECTOR W 6 WITH GUSTS BACK SW
7 WITH GUSTS PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS PROB OF SH RAIN AND SNOW MIXTURE SPELLS
OF GOOD WEATHER VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6 WITH GUSTS BACK SW 8 WITH GUSTS
PROB OF RAIN AND SNOW MIXTURE NXT PROB OF SH OF SNOW STARTING NIGTH VIS MODERATE
TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 29, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
862/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST VEER SECTOR W IN 60S-70S 50W-30W UNTIL 29/1800
863/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 63S-69S 90W-75W UNTIL 30/0600
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 979HPA 61S 70W MOV E WKN
LOW 937HPA 70S 50W MOV SE DPN EXTENDS CFNT AT 70S 50W 73S 40W 64S 35W MOV E
281400 UTC 1.SEA ICE LIMIT 6002S 02000W 5716S 02618W 5749S 03217W 5758S 03757W 5836S 04317W 5911S 04814W 6130S 05247W 6200S 05655W 6326S 06033W 6411S 06337W 6527S 06559W 6613S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5253S 03142W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4739S 02253W 4X1NM ICEBERG2 5248S 03241W 3X1NM 4.ICEBERGS AREA A60015S 02000W 4200S 02000W 5035S 03500W 5830S 03300W B58030S 03300W 5130S 03430W 5620S 04940W 5935S 04815W C58035S 04515W 5620S 04840W 6150S 06716W 6320S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-30
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/4 WITH GUSTS INCR SW 7 WITH GUSTS BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO VERY POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 7/5 WITH GUSTS VEER NW 5 WITH GUSTS BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 5/4 WITH GUSTS INCR SW 7 WITH GUSTS BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO VERY POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 7/5 WITH GUSTS VEER NW 5 WITH GUSTS BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
GERLACHE STRAIT : SW 5/4 BACK SE 4/3 BY 29/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
MARGARITA BAY : NW 5/4 VEER SECTOR N 4/3 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL STARTING NOON IMPR VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 7/5 WITH GUSTS BACK SECTOR S 5/4 BY 30/0300 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/7 GUST WITH 8 INTENSITY VEER SECTOR W 6/7 WITH GUSTS BY 30/0000 PROB OF MIST PROB OFSCT SH OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/7 GUST WITH 8 INTENSITY VEER SECTOR W 6/7 WITH GUSTS BY 30/0000 PROB OF MIST PROB OFSCT SH OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 8 WITH GUSTS VEER SECTOR W 7/5 WITH GUSTS BY 30/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/5 BACK SW 5/4 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: SECTOR W 7 WITH GUSTS VEER NW 5/4 BY 30/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: NW 9 WITH GUSTS BACK SECTOR W 7/5 WITH GUSTS BY 29/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 5/7 GUST WITH 8 INTENSITY VEER SECTOR E 7/5 BY 30/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE=