1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-10-10, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 449: LOW 1012HPA AT 37S 45W NOT CHANGE PROVOKES WINDS FORCE 8 FROM
SECTOR E WITH GUST
PART 2 GENERAL SYNOPSIS AT 21:00UTC
091400 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 5458S 04030W 28X25NM
D33B 5746S 04812W 21X12NM A83 6017S 05059W 12X7NM A85 5842S 05059W 10X3NM
ICEBERG1 5830S 04951W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5616S 03850W 9X6NM
D33C 6143S 05354W 9X5NM ICEBERG2 5403S 04059W 5X3NM ICEBERG3 5851S 04635W 5X3NM
ICEBERG4 5525S 04519W 4X3NM ICEBERG5 5630S 04421W 3X1NM ICEBERG6 5817S 05009W
3X2NM ICEBERG7 5919S 04844W 2X1NM ICEBERG8 5854S 04744W 6X2NM ICEBERG9 5837S
04701W 2X1NM 4.ICEBERGS AREA A5527S 02000W 5000S 02000W 5000S 04000W 5706S
04159W B5706S 04159W 5000S 04000W 5800S 06600W 6052S 06600W
LOW 1012HPA 37S 45W NC ASOCIATED WITH OFNT AT 35S 40W 39S 46W 35S 52W
HIGH 1034HPA 46S 56W NC EXTENDS RIDGE AT 45S 50W 42S 40W 36S 30W
CFNT AT 55S 40W 60S 34W 64S 30W MOV NE
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-10-11
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 5 WITH GUSTS VEER S 4 DRIZZLE RAIN VIS MODERATE OCNL
POOR
OUTER RIO DE LA PLATA: SE 5 WITH GUSTS VEER S 4 DRIZZLE RAIN VIS MODERATE OCNL
POOR
URUGUAY SOUTH EAST COASTS: SE 5 WITH GUSTS VEER S 5 WITH GUSTS DRIZZLE RAIN VIS
MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): SE 5 WITH GUSTS DRIZZLE RAIN VIS MODERATE
OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 5 WITH GUSTS PROB OF DRIZZLE
PROB OF FOG MIST VIS MODERATE OCNL POOR
PENINSULA DE VALDES COASTS(41S - 45S): NE 5 WITH GUSTS LOW PROB OF ISOL
DRIZZLE PROB OFISOL MIST VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): NE 5/6 WITH GUSTS VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 6 WITH GUSTS DECR 5 VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5/6 WITH GUSTS DECR 5 VIS GOOD
ISLAS MALVINAS COASTS: NW 5 WITH GUSTS VIS GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) W OF 40W: SECTOR E 8 WITH GUSTS DECR 7 WITH
GUSTS PROB OF RAIN STORMS VIS POOR OCNL VERY POOR
E OF 30W: SW 5 WITH GUSTS BACK S 5/4 LOW PROB OF SH IMPR STARTING EARLY MORNING
VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR E 5/6 WITH GUSTS PROB OF ISOL SH RAIN VIS GOOD OCNL
MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45 - W OF 30W: SW 5 BACK S 4 VIS
GOOD
S OF 45 - W OF 30W: SW 5/6 WITH GUSTS DECR 5 VIS GOOD
REST OF THE AREA: SW 6/7 WITH GUSTS LOW PROB OF ISOL SH VIS MODERATE OCNL
GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - S OF 45S: SECTOR S 5/4 VIS
GOOD
W OF 50 - S OF 45S: VRB 4 VIS GOOD
N OF 42S: SE 7 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE
REST OF THE AREA: SECTOR E 5 WITH GUSTS VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 6 WITH GUSTS INCR 8 WITH
GUSTS LOW PROB OF SH VIS MODERATE OCNL POOR
REST OF THE AREA: SW 7/8 WITH GUSTS LOW PROB OF SH VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) S OF 55 - E OF 50W: SW 7 WITH GUSTS VEER
W 7/8 WITH GUSTS BACK SW 7/6 WITH GUSTS VIS MODERATE OCNL POOR
N OF 55 - E OF 50W: SW 5 WITH GUSTS VEER W 5/6 WITH GUSTS VIS GOOD OCNL
MODERATE
REST OF THE AREA: NW 5/6 WITH GUSTS DECR 5 VIS GOOD
DRAKE AREA (55S- 60S AND 60W- 67W): NW 5 INCR 6 WITH GUSTS LOW PROB OF ISOL RAIN
STARTING EARLY MORNING VIS GOOD TO MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 10, OCTOBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1220/2026 STRONG BARIC GRADIENT MARGARITA BAY MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 66S-70S 80W-66W UNTIL 10/0900
1221/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 62S-64S 60W-50W UNTIL 10/0900
1222/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 65S-68S 60W-50W UNTIL 10/1800
1223/2026 LOW 962HPA NORTHERN WEDDELL SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN 60S-68S 50W-35W FROM 10/1200 UNTIL 11/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
RIDGE 62S 88W 61S 85W 60S 82W MOV E NC
TROUGH 68S 59W 67S 57W 66S 55W MOV E DPN
TROUGH 63S 46W 65S 46W 67S 45W MOV E NC
LOW 978HPA 65S 32W MOV NE DPN
091400 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 5458S 04030W 28X25NM D33B 5746S 04812W 21X12NM A83 6017S 05059W 12X7NM A85 5842S 05059W 10X3NM ICEBERG1 5830S 04951W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5616S 03850W 9X6NM D33C 6143S 05354W 9X5NM ICEBERG2 5403S 04059W 5X3NM ICEBERG3 5851S 04635W 5X3NM ICEBERG4 5525S 04519W 4X3NM ICEBERG5 5630S 04421W 3X1NM ICEBERG6 5817S 05009W 3X2NM ICEBERG7 5919S 04844W 2X1NM ICEBERG8 5854S 04744W 6X2NM ICEBERG9 5837S 04701W 2X1NM 4.ICEBERGS AREA A5527S 02000W 5000S 02000W 5000S 04000W 5706S 04159W B5706S 04159W 5000S 04000W 5800S 06600W 6052S 06600W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-10-11
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 6/7 WITH GUSTS BACK SECTOR W 4/5 BY 10/1200 PROB OF ISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7/6 WITH GUSTS BACK SECTOR W 5/6 WITH GUSTS BY 10/0900 AFTERWARDS SW 3/4 BY 10/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: NW 6/7 WITH GUSTS BACK SECTOR W 4/5 BY 10/1200 AFTERWARDS NW 3/4 BY 10/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 7/8 WITH GUSTS BACK SECTOR W 7/8 WITH GUSTS BY 10/0900 AFTERWARDS SW 5/4 BY 10/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
GERLACHE STRAIT : NW 6/7 WITH GUSTS BACK SECTOR W 4/5 BY 10/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
MARGARITA BAY : SECTOR W 7/8 WITH GUSTS DECR SECTOR W 6/7 BY 10/1200 AFTERWARDS NW 4/5 BY 10/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR GRADUALLY TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
EREBUS Y TERROR GULF : NW 7/8 WITH GUSTS BACK SECTOR W 7/8 WITH GUSTS BY 10/1200 AFTERWARDS SW 5/4 BY 10/1800 PROB OF MIST DISSIPATING DURING THE MORNING VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA (60-66S 70-90W): NW 6/5 WITH GUSTS VEER SECTOR N 5/6 WITH GUSTS BY 10/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 7/6 WITH GUSTS VEER SECTOR N 4/5 BY 10/1500 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR
NORTHERN WEDDELL SEA N OF 64S: SECTOR W 5/6 WITH GUSTS INCR SECTOR W 6/7 WITH GUSTS BY 10/1200 AFTERWARDS SW 6/8 WITH GUSTS BY 10/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE TO POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 4/5 INCR SECTOR W 7/8 WITH GUSTS BY 10/1200 AFTERWARDS SECTOR S 5/4 BY 10/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR W 3/4 INCR SECTOR S 4/5 BY 10/1500 PROB OF ISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD=