1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-25, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 231: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR S
WITH GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W)
WARNING 226: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 40S-50S AND 20W-30W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
251400 UTC 1.SEA ICE LIMIT 6529S 02000W 6349S 02618W 5935S 03218W 6025S 03757W
5956S 04316W 6023S 04814W 6013S 05247W 6201S 05654W 6340S 06033W 6412S 06336W
6532S 06559W 6642S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5740S 03412W 16X7NM
3.ICEBERGS SMALLER THAN ICEBERG1 4905S 02659W 5X1NM 4.ICEBERGS AREA A6537S
02000W 4500S 02000W 4500S 02400S 4800S 03300W 5800S 03300W B5800S 03300W 5100S
03300W 5100S 03500W 5900S 05200W 6037S 05200W C6037S 05200W 6000S 05200W 6000S
05700W 6600S 06716W 6644S 06716W
HIGH 1024HPA 35S 46W MOV SE INTSF EXP 36S 40W BY 26/1200
LOW 1010HPA 48S 53W MOV SE WKN EXP 47S 45W BY 26/1200 EXTENDS CFNT AT 48S 53W
44S 58W 40S 64W EXP 47S 45W 43S 50W 40S 56W BY 26/1200
HIGH 1012HPA 54S 52W MOV NE EXP 44S 30W BY 26/1200 EXTENDS RIDGE AT 54S 52W 56S
46W 60S 46W
CFNT AT 51S 66W 58S 59W 60S 58W MOV E WKN
LOW 981HPA 55S 27W MOV E DPN EXTENDS CFNT AT 55S 27W 48S 27W 47S 41W MOV E
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-26
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 VEER SECTOR S PROB OF MIST FOG PATCHES DURING THE
MORNING TEMPORARILY DISSIPATING VIS MODERATE OCNL POOR
OUTER RIO DE LA PLATA: VRB 3 VEER SECTOR S PROB OF MIST FOG PATCHES DURING THE
MORNING TEMPORARILY DISSIPATING VIS MODERATE OCNL POOR
URUGUAY SOUTH EAST COASTS: SECTOR N 3/4 BACK SECTOR S PROB OF MIST DURING THE
MORNING TEMPORARILY DISSIPATING DRIZZLE DURING THE EARLY MORNING VIS GOOD OCNL
MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4 BACK SECTOR W PROB OF MIST FOG
PATCHES DURING THE MORNING TEMPORARILY DISSIPATING VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4 BACK SECTOR W VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 4 BACK SECTOR N VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 4 BACK VRB 3 BACK SECTOR N 4
PROB OF MIST FOG PATCHES DISSIPATING VIS GOOD OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): VRB 3/4 PROB OF FOG PATCHES DISSIPATING
PROB OF DRIZZLE TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4 BACK SECTOR E PROB OF ISOL DRIZZLE
FOG PATCHES SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: VRB 3/4 VEER SECTOR W PROB OF MIST FOG PATCHES SPELLS OF
GOOD WEATHER VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR W 6/4 WITH GUSTS BACK SECTOR
S PROB OF SH SPELLS OF GOOD WEATHER VIS POOR TO MODERATE
REST OF THE AREA: VRB 3/4 PROB OF ISOL SH RAIN SPELLS OF GOOD WEATHER VIS GOOD
OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 8 WITH GUSTS BACK
SECTOR S 7/5 WITH GUSTS PROB OF SH OF RAIN SH OF SNOW IMPR TOWARDS THE END OF
THE PERIOD VIS VERY POOR TO GOOD
N OF 45 - W OF 30W: SECTOR W 7/5 WITH GUSTS BACK VRB 4 PROB OF ISOL SH RAIN
SPELLS OF GOOD WEATHER VIS POOR TO GOOD OCNL MODERATE
REST OF THE AREA: SECTOR S 6/4 WITH GUSTS BACK VRB PROB OF ISOL RAIN SPELLS OF
GOOD WEATHER VIS POOR TO GOOD OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 6/4 WITH GUSTS LOW
PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: VRB 4 LOW PROB OF ISOL RAIN VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR S 8/7 WITH GUSTS PROB
OF SH OF SNOW SNOW FALL SPELLS OF GOOD WEATHER VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR S 8/6 WITH GUSTS VEER SECTOR W PROB OF SH OF SNOW SNOW
FALL SPELLS OF GOOD WEATHER VIS POOR OCNL VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: VRB 4 VEER SECTOR W 5 PROB OF
ISOL RAIN SNOW FALL SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR W 4/5 WITH GUSTS PROB OF ISOL SNOW FALL SPELLS OF GOOD
WEATHER VIS GOOD OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5/6 WITH GUSTS PROB OF SH OF SNOW
IMPR VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 25, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
714/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 66S-72S 82W-70W UNTIL 25/1800
715/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 61S-64S 90W-80W UNTIL 25/1500
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 975HPA 68S 80W MOV E DPN
RIDGE 60S 45W 64S 48W 72S 53W MOV E WKN
LOW 972HPA 67S 87W MOV E WKN
241400 UTC 1.SEA ICE LIMIT 6529S 02000W 6349S 02618W 5935S 03218W 6025S 03757W 5956S 04316W 6023S 04814W 6013S 05247W 6201S 05654W 6340S 06033W 6412S 06336W 6532S 06559W 6642S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5740S 03412W 16X7NM 3.ICEBERGS SMALLER THAN ICEBERG1 4853S 02631W 5X1NM 4.ICEBERGS AREA A6537S 02000W 4500S 02000W 4500S 02400S 4800S 03300W 5800S 03300W B5800S 03300W 5100S 03300W 5100S 03500W 5900S 05200W 6037S 05200W C6037S 05200W 6000S 05200W 6000S 05700W 6600S 06716W 6644S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-26
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 4/5 BACK SECTOR W 7 WITH GUSTS BY 26/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT : SECTOR N 4/5 BACK NW 5/6 BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: NW 4/5 BACK SECTOR W 7 WITH GUSTS BY 26/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 4/5 BACK NW 5/6 BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO GOOD
GERLACHE STRAIT : NE 5/7 DECR NE 5/4 BY 25/2100 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE
MARGARITA BAY : NE 5/7 WITH GUSTS DECR NE 5/4 WITH GUSTS BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
EREBUS Y TERROR GULF : NW 5/7 WITH GUSTS BACK SW 4/3 BY 25/1800 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 6/7 GUST WITH 8 INTENSITY VEER NW 5/6 WITH GUSTS BY 26/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 7 WITH GUSTS BACK SECTOR N 6/5 BY 25/1500 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 BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 7/8 WITH GUSTS DECR SECTOR E 5 BY 25/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SW 5/4 VEER SECTOR N 5/6 WITH GUSTS BY 25/2100 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 4/5 VEER SECTOR N 4/5 BY 25/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 BACK NE 4/3 BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR=