1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-31, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 396: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM SECTOR
W WITH GUST BETWEEN 45S-50S 50W-60W FROM 31/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
301400 UTC 1.SEA ICE LIMIT 5523S 02000W 5404S 02618W 5212S 03217W 5521S 03758W
5652S 04316W 5829S 04814W 5954S 05248W 6125S 05655W 6101S 06033W 6035S 06336W
6028S 06559W 6137S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5331S 02832W 17X6NM
A81 5904S 04830W 28X25NM D33B 5930S 05025W 21X12NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6142S 05408W 9X5NM ICEBERG1 5901S 05141W 5X3NM ICEBERG2 6052S 05404W 5X3NM
ICEBERG3 6031S 05231W 6X4NM 4.ICEBERGS AREA A5628S 02000W 5200S 02000W 5100S
03000W 5400S 03900W 5653S 03900W B5653S 03900W 5500S 03900W 5500S 05000W 6021S
05000W C6021S 05000W 5800S 05400W 5800S 05400W 6000S 06716W 6230S 06716W
CFNT AT 58S 69W 51S 68W 45S 69W MOV NE
LOW 1002HPA 48S 38W MOV NE WKN
HIGH 1020HPA 36S 40W MOV E NC
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-9-1
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 4 INCR 4/5 WITH GUSTS BY 31/0900 PROB OF FOG
MIST DURING THE EARLY MORNING VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR E 4 INCR 4/5 WITH GUSTS BY 31/0900 PROB OF FOG
MIST DURING THE EARLY MORNING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 4 VEER SECTOR E 4/5 WITH GUSTS BY 31/0900
VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4 BACK SECTOR W 4/5 WITH GUSTS
BY 31/1800 UNSTABLE DURING THE EVENING VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5 WITH GUSTS BACK SECTOR W
6/7 GUST WITH 8 INTENSITY BY 31/0900 DECR 6/5 WITH GUSTS BY 31/1800 PROB OF SH
RAIN STARTING EARLY MORNING IMPR VIS MODERATE OCNL POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 4/5 WITH GUSTS BACK SECTOR W
5/6 WITH GUSTS BY 31/0900 PROB OF ISOL RAIN STARTING EARLY MORNING IMPR VIS GOOD
TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5 WITH GUSTS BACK SECTOR W 6/7
GUST WITH 8 INTENSITY BY 31/0900 DECR 6/5 WITH GUSTS BY 31/1800 PROB OF ISOL
RAIN STARTING EARLY MORNING IMPR VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5 WITH GUSTS BACK SECTOR W 5/6
WITH GUSTS BY 31/0600 UNSTABLE DURING THE MORNING VIS GOOD TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5 WITH GUSTS BACK SECTOR W 5/6 WITH
GUSTS BY 31/0600 UNSTABLE VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR N 5/6 WITH GUSTS BACK SECTOR W 5/6 WITH GUSTS BY
31/1800 PROB OF RAIN SNOW FALL STARTING EARLY MORNING IMPR VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 45W: SECTOR W 3/4 WITH GUSTS PROB OF
RAIN DURING THE EVENING NEXT IMPR VIS MODERATE TO GOOD
REST OF THE AREA: NW 4 WITH GUSTS PROB OF MIST DURING THE EARLY MORNING VIS
GOOD OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 6/7 GUST WITH 8
INTENSITY BACK SW 5 WITH GUSTS BY 31/1800 PROB OF SH RAIN VIS MODERATE
REST OF THE AREA: SECTOR W 7/6 GUST WITH 8 INTENSITY BACK SW 5 WITH GUSTS BY
31/0900 PROB OF SH RAIN VIS MODERATE OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR W 6/5 WITH GUSTS BACK
VRB 4/3 BY 31/0300 BACK SECTOR N 5 WITH GUSTS BY 31/1200 PROB OF ISOL RAIN
STORMS VIS MODERATE OCNL GOOD
N OF 45 - W OF 50W: SECTOR N 5/6 WITH GUSTS BACK SECTOR W 6/7 GUST WITH 8
INTENSITY BY 31/1200 DECR 6/5 WITH GUSTS BY 31/1800 PROB OF ISOL RAIN STORMS VIS
MODERATE OCNL POOR
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS BACK SECTOR W 6/7 GUST WITH 8
INTENSITY BY 31/1800 INCR 7/8 WITH GUSTS BY 31/2100 PROB OF RAIN STORMS STARTING
EARLY MORNING VIS MODERATE TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) S OF 55S: W 5/6 WITH GUSTS VIS
MODERATE
REST OF THE AREA: SECTOR W 3/4 WITH GUSTS INCR 5 WITH GUSTS BY 31/1200 PROB OF
ISOL RAIN SNOW FALL VIS GOOD OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 5 WITH GUSTS VEER
SECTOR N 5/6 WITH GUSTS BY 31/1500 PROB OF RAIN SNOW FALL VIS GOOD TO MODERATE
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS BACK SECTOR W 5/6 WITH GUSTS BY
31/1800 PROB OF ISOL RAIN SNOW FALL VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 4/5 WITH GUSTS BACK SW 6/7 GUST
WITH 8 INTENSITY BY 31/1800 PROB OF ISOL RAIN SNOW FALL VIS MODERATE OCNL POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 31, AUGUST 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1111/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 62S-64S 58W-50W UNTIL 31/1500
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 972HPA 72S 80W MOV E DPN
LOW 990HPA 61S 70W MOV E DPN
LOW 982HPA 66S 53W MOV E DPN
RIDGE 60S 60W 62S 62W 64S 65W MOV E WKN
301400 UTC 1.SEA ICE LIMIT 5523S 02000W 5404S 02618W 5212S 03217W 5521S 03758W 5652S 04316W 5829S 04814W 5954S 05248W 6125S 05655W 6101S 06033W 6035S 06336W 6028S 06559W 6137S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5331S 02832W 17X6NM A81 5904S 04830W 28X25NM D33B 5930S 05025W 21X12NM 3.ICEBERGS SMALLER THAN 10NM D33C 6142S 05408W 9X5NM ICEBERG1 5901S 05141W 5X3NM ICEBERG2 6052S 05404W 5X3NM ICEBERG3 6031S 05231W 6X4NM 4.ICEBERGS AREA A5628S 02000W 5200S 02000W 5100S 03000W 5400S 03900W 5653S 03900W B5653S 03900W 5500S 03900W 5500S 05000W 6021S 05000W C6021S 05000W 5800S 05400W 5800S 05400W 6000S 06716W 6230S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-9-1
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR N 3/4 BACK SECTOR W 4/5 BY 31/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 5/6 WITH GUSTS VEER NW 7 GUST WITH 8 INTENSITY BY 31/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3/4 VEER SECTOR W 5/7 BY 31/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5/6 WITH GUSTS VEER NW 7 GUST WITH 8 INTENSITY BY 31/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
GERLACHE STRAIT : NE 3/4 BACK SECTOR N 4/3 BY 31/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS MORNING VIS GOOD TO MODERATE
MARGARITA BAY : NE 5/7 GUST WITH 8 INTENSITY BACK NW 5/4 BY 31/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS MORNING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 4/4 VEER NW 6/7 GUST WITH 8 INTENSITY BY 31/1500 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE MORNING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: W 3/4 INCR SECTOR W 5/6 BY 31/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 BACK SW 5/5 WITH GUSTS BY 31/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 5/6 BACK SW 7 WITH GUSTS BY 31/1200 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER DURING THE MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: NW 5/7 BACK SECTOR W 7 GUST WITH 8 INTENSITY BY 31/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 3/4 VEER NW 5/6 WITH GUSTS BY 31/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SE 4 BY 31/1200 PROB OF MIST VIS MODERATE TO GOOD=