1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 28, OCTOBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1254/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE WEAKENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-66S 80W-70W FROM 29/0300 UNTIL 29/1500
1255/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA MARGARITA BAY MOV S WEAKENING WILL PROVOKE WINDS FORCE 8 FROM NE WITH GUST IN 65S-68S 75W-68W FROM 29/0900 UNTIL 29/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
TROUGH 67S 85W 66S 79W 65S 72W MOV E DPN
TROUGH 64S 61W 64S 55W 63S 50W MOV E DPN
HIGH 1003HPA 66S 43W MOV E WKN
271400 UTC 1.SEA ICE LIMIT 5316S 02000W 5302S 02618W 5340S 03218W 5700S 03758W 5713S 04316W 5901S 04814W 6221S 05247W 6244S 05654W 6204S 06033W 6217S 06336W 6303S 06559W 6350S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5522S 03640W 28X25NM D33B 5604S 04223W 21X12NM D35 6006S 04422W 15X6 NM A83 5939S 04926W 12X7NM A85 5735S 04802W 10X3NM ICEBERG1 5718S 04749W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5627S 03910W 9X6NM D33C 6155S 05424W 9X5NM ICEBERG2 5125S 04032W 5X3NM ICEBERG3 5734S 04652W 5X3NM ICEBERG4 5358S 04257W 4X1NM ICEBERG5 5604S 04148W 2X1NM ICEBERG6 5900S 04907W 2X1NM ICEBERG7 5830S 04352W 2X1NM ICEBERG8 5803S 04537W 6X2NM ICEBERG9 6001S 04341W 2X1NM ICEBERG10 5956S 04211W 4X1NM ICEBERG11 6040S 05247W 4X1NM ICEBERG12 5426S 04330W 2X1NM ICEBERG13 6221S 06248W 4X1NM 4.ICEBERGS AREA A5421S 02000W 4900S 02000W 5000S 04100W 5900S 04100W B5900S 04100W 5000S 04100W 5700S 06716W 6430S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-29
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 4/5 BACK SECTOR N 5/6 WITH GUSTS BY 29/0300 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE OCNL POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 3/4 INCR SECTOR W 4/5 BY 29/0000 PROB OF FOG PATCHES PROB OFISOL RAIN AND SNOW MIXTURE WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: NW 4/5 DECR SECTOR N 4/3 BY 29/0000 AFTERWARDS NW 5/6 WITH GUSTS BY 29/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: NE 3/4 BACK SECTOR W 4/5 BY 28/2100 AFTERWARDS NW 5/6 WITH GUSTS BY 29/0900 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
GERLACHE STRAIT : NE 4/5 BACK SECTOR N 4/3 BY 29/0000 AFTERWARDS NE 6/7 WITH GUSTS BY 29/0900 PROB OF MIST PROB OFMOD SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE OCNL POOR
MARGARITA BAY : NE 5/6 WITH GUSTS BACK SECTOR N 4/5 BY 29/0000 AFTERWARDS NE 7/8 WITH GUSTS BY 29/0900 PROB OF MIST PROB OFMOD SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE OCNL POOR
EREBUS Y TERROR GULF : SECTOR E 4/3 BACK SECTOR N 4/3 BY 29/0300 AFTERWARDS SECTOR N 6/7 WITH GUSTS BY 29/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL RAIN AND SNOW MIXTURE WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: NW 5/6 WITH GUSTS BACK SECTOR W 4/5 BY 29/0000 AFTERWARDS SECTOR W 5/6 WITH GUSTS BY 29/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING TOWARDS THE MIDDLE OF THE PERIOD VIS MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 5/6 WITH GUSTS VEER SECTOR N 5/6 WITH GUSTS BY 29/0000 AFTERWARDS SECTOR N 7/8 BY 29/0600 PROB OF MIST PROB OFMOD RAIN SNOW FALL WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 4/5 BACK SECTOR N 5/6 WITH GUSTS BY 28/2100 AFTERWARDS NE 6/7 WITH GUSTS BY 29/0600 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS MODERATE TO POOR
NORTHERN WEDDELL SEA W OF 35W: SECTOR S 3/4 BACK SECTOR E 4/3 BY 28/2100 AFTERWARDS SECTOR N 4/3 BY 29/0600 PROB OF FOG AND MIST IN PATCHES PROB OFISOL RAIN AND SNOW MIXTURE WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 4/5 VEER SW 4/3 BY 29/0600 PROB OF MIST IMPR GRADUALLY TOWARDS THE MIDDLE OF THE PERIOD VIS MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 4/5 VEER SW 4/5 BY 29/0600 PROB OF MIST DISSIPATING DURING THE EVENING VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-10-28, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 460: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH
GUST IN GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS
ISLAS MALVINAS COASTS DRAKE AREA (55S- 60S AND 60W- 67W) FROM 28/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1025HPA 35S 43W MOV NE WKN
LOW 1017HPA 42S 60W MOV E WKN EXTENDS CFNT AT 42S 60W 38S 62W 37S 63W
271400 UTC 1.SEA ICE LIMIT 5316S 02000W 5302S 02618W 5340S 03218W 5700S 03758W
5713S 04316W 5901S 04814W 6221S 05247W 6244S 05654W 6204S 06033W 6217S 06336W
6303S 06559W 6350S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5522S 03640W 28X25NM
D33B 5604S 04223W 21X12NM D35 6006S 04422W 15X6 NM A83 5939S 04926W 12X7NM A85
5735S 04802W 10X3NM ICEBERG1 5718S 04749W 10X3NM 3.ICEBERGS SMALLER THAN 10NM
D32 5627S 03910W 9X6NM D33C 6155S 05424W 9X5NM ICEBERG2 5125S 04032W 5X3NM
ICEBERG3 5734S 04652W 5X3NM ICEBERG4 5358S 04257W 4X1NM ICEBERG5 5604S 04148W
2X1NM ICEBERG6 5900S 04907W 2X1NM ICEBERG7 5830S 04352W 2X1NM ICEBERG8 5803S
04537W 6X2NM ICEBERG9 6001S 04341W 2X1NM ICEBERG10 5956S 04211W 4X1NM ICEBERG11
6040S 05247W 4X1NM ICEBERG12 5426S 04330W 2X1NM ICEBERG13 6221S 06248W 4X1NM
4.ICEBERGS AREA A5421S 02000W 4900S 02000W 5000S 04100W 5900S 04100W B5900S
04100W 5000S 04100W 5700S 06716W 6430S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-29
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 BACK SECTOR S 8/3 PROB OF HVY RAIN STORMS
STARTING NIGTH VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR N 3 BACK SECTOR S /3 PROB OF HVY RAIN STORMS
STARTING NIGTH VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 3 BACK SECTOR S 3 PROB OF HVY RAIN STORMS
STARTING EARLY MORNING VIS GOOD TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 3/4 MIST FOG PATCHES DISSIPATING
PROB OFHVY RAIN STORMS STARTING EVENING VIS MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 3/4 VEER SECTOR S /3 PROB OF
HVY RAIN STORMS TOWARDS EARLY MORNING IMPR VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 4 BACK SECTOR N 3/5 WITH GUSTS
PROB OF HVY SH STORMS TOWARDS EARLY MORNING VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 3/4 VEER SECTOR S 3 PROB OF
HVY RAIN STORMS TOWARDS EARLY MORNING VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 4 BACK SECTOR N 3/5 WITH GUSTS
PROB OF ISOL SH STORMS TOWARDS EVENING IMPR VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 4 BACK SECTOR N 4/5 WITH GUSTS
INCR 6/8 BY 29/0300 VIS GOOD TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 3 VEER SECTOR N 4/6 INCR 8 BY
28/2100 VIS GOOD TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4 VEER SECTOR N 4/6 INCR /8 BY
29/0300 VIS GOOD TO POOR
ISLAS MALVINAS COASTS: SECTOR W 4 VEER SECTOR N 4/6 INCR /8 BY 29/0600 VIS GOOD
TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 5/4 WITH GUSTS PROB OF
ISOL SH RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR N 3 VEER SECTOR S 3 PROB OF ISOL SH RAIN VIS GOOD OCNL
MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 6/5 WITH GUSTS PROB OF ISOL
SH RAIN VIS GOOD OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR W 4/5 WITH GUSTS PROB
OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR W 3 BACK SECTOR N /3 PROB OF ISOL DRIZZLE TOWARDS
EVENING IMPR VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR S 6/4 WITH GUSTS PROB
OF ISOL RAIN SNOW FALL TOWARDS THE END OF THE PERIOD IMPR VIS MODERATE TO GOOD
N OF 55 - W OF 30W: SECTOR W 6/5 BACK SECTOR S 4/5 WITH GUSTS PROB OF ISOL RAIN
VIS MODERATE
REST OF THE AREA: SECTOR S 6/3 WITH GUSTS BACK SECTOR E /3 PROB OF ISOL RAIN
TOWARDS THE END OF THE PERIOD IMPR VIS MODERATE TO GOOD
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 4/5 BACK SECTOR S /5
WITH GUSTS PROB OF RAIN TOWARDS THE END OF THE PERIOD IMPR VIS MODERATE
REST OF THE AREA: SECTOR W 5 VEER SECTOR N /5 WITH GUSTS PROB OF RAIN TOWARDS
NIGTH IMPR VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6 WITH GUSTS VEER SECTOR N 6/8 WITH
GUSTS PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO POOR
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