1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-10-4, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 448: STRONG BARIC GRADIENT MOV SE WILL PROVOKE WINDS FORCE 8 FROM NE
WITH GUST BETWEEN 35S-40S 40W-50W FROM 04/0900
WARNING 447: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SW WITH GUST
BETWEEN 35S-40S 20W-30W
WARNING 443: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SW WITH GUST
BETWEEN 40S-55S AND 20W-30W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
031400 UTC 1.SEA ICE LIMIT 5513S 02000W 5400S 02618W 5505S 03217W 5704S 03757W
5811S 04316W 5925S 04814W 6122S 05247W 6008S 05654W 5831S 06032W 5901S 06337W
6022S 06559W 6050S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5528S 04137W 28X25NM
D33B 5806S 04731W 21X12NM A76C 5523S 02515W 17X6NM A83 6042S 05200W 12X7NM A85
5903S 05100W 10X3NM ICEBERG1 5847S 05011W 10X3NM 3.ICEBERGS SMALLER THAN 10NM
D32 5626S 03830W 9X6NM D33C 6151S 05420W 9X5NM ICEBERG2 5532S 04230W 5X3NM
ICEBERG3 5938S 04737W 5X3NM ICEBERG4 5517S 04617W 4X3NM ICEBERG5 5635S 04527W
3X1NM ICEBERG6 5842S 05010W 3X2NM ICEBERG7 5848S 04914W 2X1NM ICEBERG8 5928S
05125W 6X2NM 4.ICEBERGS AREA A5727S 02000W 5000S 02000W 5000S 04100W 5806S
04959W B5806S 04959W 5200S 04100W 5200S 04700W 5852S 04700W C5852S 04700W 5600S
04700W 5900S 06717W 6118S 06717W
RIDGE 45S 42W 50S 46W 55S 52W MOV E
CFNT AT PENINSULA DE VALDES COASTS RINCON BAHIA BLANCA COASTS OUTER RIO DE LA
PLATA
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-10-5
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 PROB OF MIST FOG PATCHES STARTING EARLY MORNING VIS
GOOD TO MODERATE
OUTER RIO DE LA PLATA: VRB 3 VEER SW 3/4 BY 4/0600 PROB OF FOG AND MIST IN
PATCHES STARTING EARLY MORNING VIS GOOD TO MODERATE
URUGUAY SOUTH EAST COASTS: SW 4 PROB OF RAIN IMPR STARTING EARLY MORNING VIS
MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 4/3 PROB OF FOG AND MIST IN
PATCHES STARTING EARLY MORNING VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): NW 4/5 WITH GUSTS VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): NW 5/4 UNSTABLE TOWARDS THE END OF THE
PERIOD VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 4 BACK SECTOR S 3 BY 4/1800
PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR E 6/5 WITH GUSTS VEER SECTOR S 4/3
BY 4/1200 PROB OF RAIN IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): NE 5 WITH GUSTS VEER SE 4 BY 4/1800 PROB OF
RAIN VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: NE 7/6 GUST WITH 8 INTENSITY DECR 4 BY 4/1800 PROB OF
RAIN VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SW 8/7 WITH GUSTS PROB OF SH IMPR
TOWARDS THE END OF THE PERIOD VIS POOR TO GOOD
W OF 30 - E OF 40W: SW 4 VEER NE 4/6 WITH GUSTS BY 4/1500 PROB OF ISOL RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
W OF 40 - E OF 50W: NE 7/8 WITH GUSTS PROB OF HVY RAIN VIS VERY POOR TO POOR
REST OF THE AREA: VRB 3 VEER SW 5/6 WITH GUSTS BY 4/0600 PROB OF RAIN IMPR
STARTING EVENING VIS POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SW 8/7 WITH GUSTS PROB OF SH
RAIN AND SNOW MIXTURE IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO
MODERATE
REST OF THE AREA: SW 7/6 GUST WITH 8 INTENSITY DECR VRB 3 BY 4/1500 VIS
MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 6/7 GUST WITH 8
INTENSITY PROB OF RAIN VIS POOR
REST OF THE AREA: NE 7/6 GUST WITH 8 INTENSITY DECR SECTOR N 4 BY 4/1500 PROB
OF RAIN IMPR STARTING EVENING VIS POOR TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 7/8 WITH GUSTS PROB OF SH
OF SNOW SPELLS OF GOOD WEATHER VIS POOR
REST OF THE AREA: SW 6/7 WITH GUSTS UNSTABLE VIS MODERATE TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: NE 5/6 WITH GUSTS PROB OF RAIN
VIS MODERATE TO POOR
E OF 50 - S OF 55S: SW 6/5 WITH GUSTS UNSTABLE VIS MODERATE
REST OF THE AREA: NE 4 WITH GUSTS PROB OF RAIN STARTING EVENING VIS GOOD TO
MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): NE 4 VEER E 4 BY 4/1800 PROB OF RAIN VIS
MODERATE OCNL POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 03, OCTOBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1015HPA 64S 78W MOV E NC
LOW 965HPA 72S 23W MOV E DPN
TROUGH 70S 24W 67S 23W 65S 33W MOV E NC
021400 UTC 1.SEA ICE LIMIT 5513S 02000W 5400S 02618W 5505S 03217W 5704S 03757W 5811S 04316W 5925S 04814W 6122S 05247W 6008S 05654W 5831S 06032W 5901S 06337W 6022S 06559W 6050S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5533S 04142W 28X25NM D33B 5812S 04724W 21X12NM A76C 5523S 02515W 17X6NM A83 6047S 05205W 12X7NM A85 5913S 05107W 10X3NM ICEBERG1 5914S 05044W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5628S 03823W 9X6NM D33C 6149S 05409W 9X5NM ICEBERG2 5532S 04230W 5X3NM ICEBERG3 5933S 04712W 5X3NM ICEBERG4 5517S 04617W 4X3NM ICEBERG5 5635S 04527W 3X1NM ICEBERG6 5905S 05031W 3X2NM ICEBERG7 5858S 04957W 2X1NM ICEBERG8 5935S 05121W 6X2NM 4.ICEBERGS AREA A5530S 02000W 5000S 02000W 5000S 03300W 5533S 03300W B5533S 03300W 5000S 03300W 5000S 04500W 5900S 04500W C5900S 04500W 5200S 04500W 5900S 06717W 6100S 06717W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-4
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 50W: SW 3 BACK SECTOR S 3/4 BY 4/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 5/6 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY 4/0000 PROB OF ISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 DECR SW 4/3 BY 4/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR GRADUALLY TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 6/5 WITH GUSTS INCR SECTOR W 6/7 WITH GUSTS BY 4/0000 AFTERWARDS SW 4 BY 4/0900 VIS GOOD
GERLACHE STRAIT : SW 3/4 INCR SW 4/5 BY 4/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR S 3 INCR SW 4/5 BY 4/0000 PROB OF ISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SECTOR W 3/4 DECR SW 3 BY 4/0300 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 76W: SECTOR E 4/5 BACK NE 5/6 WITH GUSTS BY 4/0000 PROB OF SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR S 3 INCR NW 4/5 BY 4/0300 PROB OF MIST DISSIPATING STARTING NOON VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 5/6 INCR SECTOR N 6/7 WITH GUSTS BY 4/0000 PROB OF INTERMITTENT SNOW FALL WORSENING STARTING NOON VIS MODERATE
NORTHERN WEDDELL SEA (60-68S 20-50W): SECTOR W 4/5 BACK SW 5/6 BY 4/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 6/7 WITH GUSTS DECR SECTOR S 6/5 WITH GUSTS BY 4/0300 PROB OF MIST IMPR STARTING NOON VIS MODERATE TO GOOD=