1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-10-11, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 451: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN
SOUTH EAST AREA (50S- 60S AND 20W- 40W)
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 1005HPA 39 S 44W MOV E WKN EXP 38S 26W BY 12/1200 ASOCIATED WITH OFNT AT 39S
41W 39S 47W 35S 49W
HIGH 1029HPA 45S 55W MOV E NC EXP 45S 50W BY 12/1200
STRONG BARIC GRADIENT BETWEEN IN 40S-60S 20-40W MOV E
[06:59, 11/10/2026] Comet: 1.SEA ICE LIMIT 5435S 02000W 5341S 02617W 5617S
03218W 5648S 03757W 5721S 04317W 5908S 04813W 6128S 05247W 6234S 05655W 6217S
06033W 5929S 06336W 5949S 06559W 6112S 06716W 2.ICEBERGS GREATER THAN 10NM A81
5502S 04020W 28X25NM D33B 5733S 04803W 21X12NM A83 6017S 05053W 12X7NM A85 5842S
05059W 10X3NM ICEBERG1 5829S 04935W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32
5614S 03849W 9X6NM D33C 6139S 05351W 9X5NM ICEBERG2 5344S 04030W 5X3NM ICEBERG3
5841S 04652W 5X3NM ICEBERG4 5534S 04447W 4X3NM ICEBERG5 5630S 04421W 3X1NM
ICEBERG6 5809S 04940W 3X2NM ICEBERG7 5919S 04844W 2X1NM ICEBERG8 5916S 04722W
6X2NM ICEBERG9 5839S 04657W 2X1NM 4.ICEBERGS AREA A5527S 02000W 5000S 02000W
5000S 04000W 5706S 04159W B5706S 04159W 5000S 04000W 5800S 06716W 6052S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-12
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3/4 LOW PROB OF DRIZZLE SPELLS OF GOOD WEATHER
VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR E 3/4 LOW PROB OF DRIZZLE SPELLS OF GOOD WEATHER
VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR E 3/4 LOW PROB OF DRIZZLE SPELLS OF GOOD
WEATHER VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR E 3/4 MIST FOG PATCHES DURING THE
MORNING DISSIPATING VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS MIST FOG
PATCHES DURING THE MORNING DISSIPATING VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 WITH GUSTS LOW PROB OF ISOL
RAIN STARTING NIGTH VIS GOOD OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/6 WITH GUSTS MIST FOG PATCHES
DURING THE MORNING DISSIPATING VIS GOOD OCNL MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 4/5 WITH GUSTS VIS GOOD OCNL
MODERATE
ISLAS MALVINAS COASTS: SECTOR N 4/5 WITH GUSTS MIST FOG PATCHES DURING THE
MORNING DISSIPATING VIS GOOD OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) W OF 35W: VRB 5 WITH GUSTS VEER SECTOR S 6
WITH GUSTS BY 11/1800 RAIN VIS MODERATE
REST OF THE AREA: SECTOR W 4/5 WITH GUSTS TEMPO VEER SECTOR E 6 WITH GUSTS PROB
OF RAIN VIS MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 6/5 WITH GUSTS BACK SECTOR S
BY 11/2100 LOW PROB OF ISOL DRIZZLE VIS MODERATE OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR E 7 WITH GUSTS DECR 4
BY 12/0300 LOW PROB OF ISOL DRIZZLE VIS GOOD OCNL MODERATE
REST OF THE AREA: VRB 3/4 VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 4 WITH GUSTS INCR 6 WITH GUSTS
BY 11/1800 LOW PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 4 WITH GUSTS INCR 6 WITH GUSTS
BY 11/1800 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5/4 WITH GUSTS BACK SECTOR E BY
12/0000 VIS GOOD OCNL MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 11, OCTOBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1227/2026 LOW 958HPA NORTHERN WEDDELL SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN 60S-65S 50W-35W UNTIL 12/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 988HPA 67S 57W MOV W WKN
RIDGE 61S 56W 63S 60W 65S 64W MOV E NC
TROUGH 64S 55W 63S 53W 62S 51W MOV E NC
RIDGE 64S 44W 68S 48W 71S 51W MOV E NC
101400 UTC 1.SEA ICE LIMIT 5435S 02000W 5341S 02617W 5617S 03218W 5648S 03757W 5721S 04317W 5908S 04813W 6128S 05247W 6234S 05655W 6217S 06033W 5929S 06336W 5949S 06559W 6112S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5502S 04020W 28X25NM D33B 5733S 04803W 21X12NM A83 6017S 05053W 12X7NM A85 5842S 05059W 10X3NM ICEBERG1 5829S 04935W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5614S 03849W 9X6NM D33C 6139S 05351W 9X5NM ICEBERG2 5344S 04030W 5X3NM ICEBERG3 5841S 04652W 5X3NM ICEBERG4 5534S 04447W 4X3NM ICEBERG5 5630S 04421W 3X1NM ICEBERG6 5809S 04940W 3X2NM ICEBERG7 5919S 04844W 2X1NM ICEBERG8 5916S 04722W 6X2NM ICEBERG9 5839S 04657W 2X1NM 4.ICEBERGS AREA A5527S 02000W 5000S 02000W 5000S 04000W 5706S 04159W B5706S 04159W 5000S 04000W 5800S 06716W 6052S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-12
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 5/6 WITH GUSTS BACK SW 4/3 BY 11/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 5/6 WITH GUSTS BACK SECTOR W 5/6 WITH GUSTS BY 12/0000 AFTERWARDS SW 3/4 BY 12/0900 PROB OF ISOL SNOW FALL IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: NW 4/5 BACK SW 3/4 BY 12/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 5/6 WITH GUSTS BACK SECTOR W 6/7 WITH GUSTS BY 12/0000 AFTERWARDS SW 4/3 BY 12/0900 PROB OF ISOL SNOW FALL IMPR DURING THE NIGTH VIS MODERATE TO GOOD
GERLACHE STRAIT : NE 6/7 WITH GUSTS BACK SECTOR W 4/5 BY 12/0000 PROB OF INTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD
MARGARITA BAY : NE 6/7 WITH GUSTS BACK SECTOR W 4/5 BY 12/0000 AFTERWARDS SECTOR N 3 BY 12/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SECTOR N 3/4 BACK SW 3/4 BY 12/0600 PROB OF MIST IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 75W: NW 5/6 WITH GUSTS BACK SECTOR N 5/6 WITH GUSTS BY 12/0600 PROB OF SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 5/6 WITH GUSTS DECR NW 4/3 BY 12/0000 AFTERWARDS SECTOR N 4/3 BY 12/0900 PROB OF ISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 6/7 WITH GUSTS BACK SECTOR N 5/6 WITH GUSTS BY 12/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
NORTHERN WEDDELL SEA W OF 35W: SECTOR W 4/5 DECR VRB 3 BY 12/0600 PROB OF SNOW FALL IMPR DURING THE EVENING VIS GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 7/8 WITH GUSTS DECR SECTOR S 5/4 BY 12/1800 PROB OF MIST IMPR GRADUALLY TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 4/5 VEER NW 4/5 BY 12/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE=