1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 11, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
643/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR S WITH GUST IN 60S-63S 80W-70W UNTIL 11/1800
644/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST BACK SW IN 60S-65S 90W-80W UNTIL 11/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1008HPA 61S 40W MOV E WKN
LOW 982HPA MOV SE DPN
LOW 966HPA 73S 45W MOV SE DPN
RIDGE 60S 85W 63S 80W 66S 76W MOV E INTSF
101400 UTC 1.SEA ICE LIMIT 6614S 02000W 6617S 02518W 6613S 02753W 6521S 03227W 6228S 03509W 6255S 04154W 6302S 04651W 6218S 04928W 6158S 05227W 6213S 05625W 6416S 06313W 6647S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5747S 03622W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4908S 02700W 6X3NM ICEBERG2 4624S 02620W 4X2NM 4.ICEBERGS AREA A6800S 02000W 4200S 02000W 4200S 04100W 6100S 04100W B6100S 04100W 5500S 04100W 6200S 06716W 6830S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-12
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 7/8 WITH GUSTS VEER SW 8 WITH GUSTS BY 11/1800 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 3/4 VEER NE 4/5 WITH GUSTS BY 11/2100 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NE 7/8 WITH GUSTS VEER SW 8 WITH GUSTS BY 11/1800 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 3/4 VEER NE 4/5 WITH GUSTS BY 11/2100 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
GERLACHE STRAIT : SECTOR E 3/4 VEER SE 4 BY 12/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : SECTOR N 3/4 VEER NE 4 BY 11/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NIGTH VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : NE 4/5 BACK NW 4/5 BY 11/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/6 VEER SECTOR W 7 GUST WITH 8 INTENSITY BY 11/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 VEER NW 5/4 BY 11/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING EVENING VIS MODERATE TO VERY POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 3/4 VEER SECTOR W 4/3 BY 11/2100 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: NW 4/5 BACK SECTOR W 5/4 BY 11/2100 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: NW 6/7 WITH GUSTS BACK SECTOR W 6/5 WITH GUSTS BY 11/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NW 6/5 GUST WITH 8 INTENSITY BACK SW 5/4 WITH GUSTS BY 12/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-11, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 202: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST
IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS CENTRAL
WEST AREA (40S- 50S AND 40W- 60W) FROM 11/1500
WARNING 201: LOW 973HPA AT 49S 36W PROVOKES WINDS FORCE 8 WITH GUST IN CENTRAL
EAST AREA (40S- 50S AND 20W- 40W) UNTIL 11/2100
WARNING 200: LOW 973HPA AT 49S 36W PROVOKES WINDS FORCE 9 FROM SECTOR W WITH
GUST BETWEEN 35S-40S AND 30W-60W
WARNING 199: LOW 973HPA AT 49S 36W PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) UNTIL 12/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
101400 UTC 1.SEA ICE LIMIT 6614S 02000W 6617S 02518W 6613S 02753W 6521S 03227W
6228S 03509W 6255S 04154W 6302S 04651W 6218S 04928W 6158S 05227W 6213S 05625W
6416S 06313W 6647S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5747S 03622W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4908S 02700W 6X3NM ICEBERG2 4624S 02620W
4X2NM 4.ICEBERGS AREA A6800S 02000W 4200S 02000W 4200S 04100W 6100S 04100W
B6100S 04100W 5500S 04100W 6200S 06716W 6830S 06716W
LOW 973HPA 49S 36W MOV SE DPN EXP 51S 31W BY 12/1200 EXTENDS OFNT AT 44S 30W 47S
42W 52S 34W 49S 20W MOV SE
LOW 985HPA 50S 64W MOV NE DPN EXP 46S 51W BY 12/1200 EXTENDS CFNT AT 42S 68W 45S
65W 50S 67W MOV NE
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-12
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR W 4/5 WITH GUSTS PROB OF MIST FOG PATCHES DURING
THE MORNING VIS MODERATE
OUTER RIO DE LA PLATA: SECTOR W 4/5 WITH GUSTS PROB OF MIST FOG PATCHES DURING
THE MORNING VIS MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR W 4/5 WITH GUSTS PROB OF MIST FOG PATCHES
DURING THE MORNING VIS MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 5/6 WITH GUSTS VIS MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5/6 WITH GUSTS BACK SECTOR S
WITH GUSTS BY 12/0900 LOW PROB OF RAIN VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 5/6 WITH GUSTS LOW PROB OF
ISOL RAIN VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 5/7 WITH GUSTS PROB OF RAIN AND
SNOW MIXTURE VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SW 6/8 WITH GUSTS PROB OF SH OF SNOW SNOW
FALL VIS POOR OCNL VERY POOR
FIN DEL MUNDO COASTS(54S - 55S): SW 6/8 WITH GUSTS PROB OF SH OF SNOW SNOW
FALL VIS POOR OCNL VERY POOR.
ISLAS MALVINAS COASTS: SW 6/8 WITH GUSTS PROB OF SH OF SNOW SNOW FALL VIS POOR
OCNL VERY POOR.
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 5/6 WITH GUSTS PROB OF ISOL RAIN
STORMS VIS POOR
REST OF THE AREA: SECTOR W 9 WITH GUSTS PROB OF RAIN VIS VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): NW 8 WITH GUSTS BACK SECTOR W 6 WITH
GUSTS BY 11/2100 PROB OF ISOL RAIN STORMS VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SW 6/8 WITH GUSTS PROB OF SH OF SNOW
SNOW FALL VIS POOR OCNL VERY POOR.
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR E 7/5 WITH GUSTS PROB
OF RAIN VIS POOR
REST OF THE AREA: SECTOR E 5/7 WITH GUSTS WORSENING WITH PROB OF RAIN VIS
POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR S 5 WITH GUSTS PROB OF RAIN AND
SNOW MIXTURE VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 6/8 WITH GUSTS PROB OF SH OF SNOW SNOW
FALL VIS POOR OCNL VERY POOR.
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