1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-4, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 239: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS
WARNING 238: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SW WITH GUST
BETWEEN 45S-60S AND 20W-30W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 1002HPA 53S 65W MOV E WKN EXP 54S 54W BY 04/2100 EXTENDS CFNT AT 52S 65W 46S
63W 41S 64W MOV E
HIGH 1035HPA 41S 44W MOV NE NC EXP 38S 40W BY 04/2100
031400 UTC 1.SEA ICE LIMIT 6224S 02000W 5908S 02618W 5827S 03218W 5829S 03757W
5945S 04317W 5937S 04813W 6053S 05247W 6251S 05655W 6347S 06049W 6409S 06337W
6541S 06605W 6608S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5544S 03230W 16XNM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4941S 02720W 4X1NM ICEBERG2 6218S 05751W
3X1NM 4.ICEBERGS AREA A6242S 02000W 4400S 02000W 4200S 02600W 5922S 02600W
B5922S 02600W 4200S 02600W 4900S 03700W 6037S 03700W C6037S 03700W 4900S 03700W
5800S 05000W 6000S 05000W D6000S 05000W 5800S 05000W 6400S 06716W 6645S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-5
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 3 PROB OF MIST IMPR STARTING EARLY MORNING VIS GOOD
OCNL MODERATE
OUTER RIO DE LA PLATA: NE 4/3 PROB OF MIST IMPR STARTING EARLY MORNING VIS GOOD
OCNL MODERATE
URUGUAY SOUTH EAST COASTS: NE 4/5 PROB OF ISOL RAIN VIS MODERATE OCNL GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/3 PROB OF RAIN STARTING
EVENING VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/3 PROB OF RAIN VIS
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5 WITH GUSTS BACK VRB 4/3 BY
4/0600 PROB OF ISOL RAIN VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 5/4 PROB OF FOG MIST IMPR STARTING
EARLY MORNING VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SW 8/6 WITH GUSTS PROB OF RAIN IMPR
STARTING EARLY MORNING VIS VERY POOR TO POOR OCNL MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SW 8/6 WITH GUSTS PROB OF RAIN IMPR STARTING
EARLY MORNING VIS VERY POOR TO POOR
ISLAS MALVINAS COASTS: SECTOR N 5/6 WITH GUSTS BACK SW 7/8 WITH GUSTS BY 4/0600
PROB OF RAIN VIS VERY POOR TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR S 7/5 WITH GUSTS PROB OF
RAIN SPELLS OF GOOD WEATHER VIS POOR OCNL MODERATE
REST OF THE AREA: VRB 5/3 VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SW 7 GUST WITH 8
INTENSITY PROB OF RAIN VIS POOR
E OF 30 - S OF 45S: SW 7/8 WITH GUSTS PROB OF RAIN SNOW FALL VIS VERY POOR TO
POOR
REST OF THE AREA: SW 6 WITH GUSTS PROB OF RAIN STARTING EARLY MORNING VIS
MODERATE TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 5 BACK NW 5/6 WITH
GUSTS PROB OF RAIN NXT HVY RAIN VIS POOR
REST OF THE AREA: SECTOR N 7 WITH GUSTS BACK SECTOR W 6 WITH GUSTS BY 4/1200
PROB OF HVY RAIN NXT ISOL RAIN VIS POOR TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 8/7 WITH GUSTS PROB OF SNOW
FALL VIS VERY POOR
REST OF THE AREA: SW 7/6 WITH GUSTS PROB OF SH OF RAIN SH OF SNOW IMPR TOWARDS
THE END OF THE PERIOD VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6/5 WITH GUSTS VRB
4/3 BY 4/1200 PROB OF RAIN STARTING EARLY MORNING VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR N 6/5 WITH GUSTS BACK SW 6/7 GUST WITH 8 INTENSITY BY
4/1200 PROB OF RAIN NXT HVY RAIN VIS MODERATE TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 5 WITH GUSTS BACK SECTOR W 6/5 BY
4/0300 PROB OF RAIN IMPR STARTING EARLY MORNING VIS MODERATE OCNL POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 04, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
750/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 65S-70S 80W-70W UNTIL 04/1200
751/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-70S 90W-70W FROM 04/0600 UNTIL 04/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 972HPA MOV SE DPN EXTENDS CFNT AT 64S 88W 68S 80W 63S 71W MOV E
HIGH 1007HPA 70S 49W MOV NE INTSF EXTENDS RIDGE AT 70S 49W 63S 49W 60S 48W MOV E
031400 UTC 1.SEA ICE LIMIT 6224S 02000W 5908S 02618W 5827S 03218W 5829S 03757W 5945S 04317W 5937S 04813W 6053S 05247W 6251S 05655W 6347S 06049W 6409S 06337W 6541S 06605W 6608S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5544S 03230W 16XNM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4941S 02720W 4X1NM ICEBERG2 6218S 05751W 3X1NM 4.ICEBERGS AREA A6242S 02000W 4400S 02000W 4200S 02600W 5922S 02600W B5922S 02600W 4200S 02600W 4900S 03700W 6037S 03700W C6037S 03700W 4900S 03700W 5800S 05000W 6000S 05000W D6000S 05000W 5800S 05000W 6400S 06716W 6645S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-5
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR N 5/6 WITH GUSTS BACK NW 7/8 WITH GUSTS BY 4/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 4/5 WITH GUSTS BACK SECTOR W 4/3 BY 4/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SECTOR N 5/6 WITH GUSTS BACK NW 7/8 WITH GUSTS BY 4/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 7/5 WITH GUSTS BACK SECTOR W 5/4 BY 4/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
GERLACHE STRAIT : NE 5/6 INCR NE 7/8 WITH GUSTS BY 4/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
MARGARITA BAY : NE 3/4 INCR NE 7 WITH GUSTS BY 4/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NW 5/7 WITH GUSTS BACK SW 5/4 BY 4/1200 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR N 5/6 WITH GUSTS BACK NW 8 WITH GUSTS BY 4/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 7/8 WITH GUSTS BACK SECTOR N 5 WITH GUSTS BY 4/0900 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS VERY POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 7/8 WITH GUSTS VEER SECTOR E 7 WITH GUSTS BY 4/0000 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 N OF 64S: SECTOR W 5/4 VEER NW 5/4 WITH GUSTS BY 4/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SW 5/6 VEER SECTOR W 5/4 WITH GUSTS BY 4/1500 VIS GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 7/5 GUST WITH 8 INTENSITY DECR SE 5 BY 4/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD=