1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-2, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 400: LOW 984HPA AT 54S 34W MOV SE WEAKENING PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 50S-55S AND 20W-40W UNTIL 02/1500
WARNING 399: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM SECTOR
W WITH GUST IN FIN DEL MUNDO COASTS DRAKE AREA (55S- 60S AND 60W- 67W) BETWEEN
55S-60S AND 50W-60W FROM 02/0600
WARNING 397: LOW 996HPA AT 33S 38W MOV SE DEEPENING EXPECTED 45S 23W BY 03/0000
PROVOKES WINDS FORCE 9 AROUND ITSELF WITH GUST BETWEEN 35S-45S AND 20W-40W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
011400 UTC 1.SEA ICE LIMIT 5558S 02000W 5446S 02618W 5350S 03218W 5557S 03758W
5859S 04317W 6011S 04814W 6040S 05248W 6201S 05655W 6335S 06032W 6312S 06337W
6137S 06559W 6136S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5319S 02811W 17X6NM
A81 5904S 04727W 28X25NM D33B 5914S 05041W 21X12NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6152S 05423W 9X5NM ICEBERG1 5841S 05100W 5X3NM ICEBERG2 6053S 05327W 5X3NM
ICEBERG3 6020S 05228W 6X4NM ICEBERG4 5844S 05055W 2X1NM ICEBERG5 5830S 05050W
2X1NM 4.ICEBERGS AREA A5700S 02000W 4700S 02000W 5200S 04900W 6100S 04900W
B5600S 04900W 6100S 04900W 6600S 06600W 6600S 06600W
HIGH 1020HPA 38S 59W MOV NE NC
LOW 996HPA 33S 38W MOV SE DPN EXP 45S 23W BY 03/0000
LOW 984HPA 54S 34W MOV SE WKN EXTENDS CFNT AT MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-3
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 4 BACK SECTOR N 5 WITH GUSTS BY 2/1200 PROB OF
FOG MIST NXT STORMS DURING THE END OF THE PERIOD VIS MODERATE OCNL POOR
OUTER RIO DE LA PLATA: SECTOR E 4 BACK SECTOR N 5 WITH GUSTS BY 2/1200 PROB OF
FOG MIST NXT STORMS DURING THE END OF THE PERIOD VIS MODERATE OCNL POOR
URUGUAY SOUTH EAST COASTS: VRB 3/4 INCR SECTOR N 5 WITH GUSTS BY 2/1500 PROB OF
FOG MIST NXT ISOL STORMS TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): VRB 3/4 INCR SECTOR N 5 WITH GUSTS BY
2/1500 PROB OF HVY STORMS STARTING EVENING VIS GOOD POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4 BACK SECTOR N 5 WITH GUSTS
BY 2/0600 BACK SECTOR S BY 2/2100 PROB OF RAIN STORMS VIS MODERATE POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS BACK SECTOR S
BY 2/1800 PROB OF ISOL SH RAIN STARTING EARLY MORNING TOWARDS THE END OF THE
PERIOD IMPR VIS GOOD MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 4 INCR SECTOR S 5/6 WITH GUSTS BY
2/1500 PROB OF ISOL RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE GOOD
SOUTH PATAGONIA COASTS(48S - 54S) N OF 51S: SECTOR W 5/6 WITH GUSTS BACK
SECTOR S BY 2/2100 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR W 6/7 GUST WITH 8
INTENSITY LOW PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 6/7 GUST WITH 8 INTENSITY INCR 8
WITH GUSTS BY 2/0600 DECR BY 2/2100 PROB OF RAIN AND SNOW MIXTURE STARTING EARLY
MORNING VIS MODERATE VERY POOR
ISLAS MALVINAS COASTS: SECTOR W 5/6 GUST WITH 8 INTENSITY PROB OF ISOL RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR E 9 WITH GUSTS BACK SECTOR N
BY 2/0600 BACK SECTOR S BY 2/2100 PROB OF HVY RAIN STORMS VIS VERY POOR
W OF 30 - E OF 40W: SECTOR S 8 WITH GUSTS PROB OF HVY RAIN STORMS VIS VERY
POOR
W OF 40 - E OF 50W: SECTOR S 5 WITH GUSTS VEER SECTOR W BY 2/1800 LOW PROB OF
ISOL RAIN VIS MODERATE OCNL MODERATE
REST OF THE AREA: SECTOR S 4 VEER SECTOR W VEER SECTOR N 6 WITH GUSTS BY 2/1800
PROB OF RAIN STORMS STARTING EVENING VIS GOOD TO MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR N 6 WITH
GUSTS VEER NE 9 WITH GUSTS BY 2/0900 VEER SECTOR E BY 2/1500 PROB OF HVY RAIN
STORMS STARTING EARLY MORNING VIS GOOD VERY POOR
E OF 30 - S OF 45S: NW 10 GUST WITH 8 INTENSITY BACK SECTOR S 5/6 WITH GUSTS BY
2/1800 PROB OF ISOL RAIN NXT HVY RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE
POOR
W OF 30 - N OF 45S: SECTOR S 5/6 WITH GUSTS VEER SECTOR W BY 2/2100 PROB OF
RAIN STARTING EARLY MORNING VIS GOOD POOR
REST OF THE AREA: SECTOR W 7/6 WITH GUSTS BACK SECTOR S BY 2/2100 PROB OF RAIN
STARTING EARLY MORNING VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR S 4 VEER
SECTOR W 5 WITH GUSTS BY 2/0600 PROB OF ISOL RAIN VIS MODERATE
E OF 50 - S OF 45S: SECTOR W 6/5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE
REST OF THE AREA: SECTOR W 5 WITH GUSTS VEER SECTOR N BY 2/1500 PROB OF RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 8 WITH GUSTS DECR 7/6
BY 2/1500 PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS VERY POOR
POOR
REST OF THE AREA: SECTOR N 5 BACK SECTOR W 6 WITH GUSTS BY 2/0900 PROB OF SNOW
FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6/7 PROB OF RAIN AND
SNOW MIXTURE NXT SNOW FALL VIS POOR OCNL VERY POOR
W OF 50 - N OF 55S: VRB 6/7 GUST WITH 8 INTENSITY SECTOR W WITH GUSTS PROB OF
RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY INCR 8 WITH GUSTS BY 2/1800
BACK SECTOR S BY 2/2100 PROB OF SNOW FALL VIS POOR VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7 GUST WITH 8 INTENSITY INCR 8 WITH
GUSTS BY 2/0600 BACK SECTOR S 7/6 WITH GUSTS BY 2/1500 PROB OF RAIN NXT SNOW
FALL VIS POOR VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 02, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1118/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR N IN 60S-65S 40W-30W UNTIL 01/2100
1119/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW IN 63S-68S 59W-50W UNTIL 02/2100
1120/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST VEER SECTOR E IN 68S-73S 50W-30W UNTIL 02/1500
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 956HPA 69S 42W MOV E DPN
LOW 962HPA 64S 48W MOV E WKN
LOW 978HPA 61S 75W MOV SE DPN
011400 UTC 1.SEA ICE LIMIT 5558S 02000W 5446S 02618W 5350S 03218W 5557S 03758W 5859S 04317W 6011S 04814W 6040S 05248W 6201S 05655W 6335S 06032W 6312S 06337W 6137S 06559W 6136S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5319S 02811W 17X6NM A81 5904S 04727W 28X25NM D33B 5914S 05041W 21X12NM 3.ICEBERGS SMALLER THAN 10NM D33C 6152S 05423W 9X5NM ICEBERG1 5841S 05100W 5X3NM ICEBERG2 6053S 05327W 5X3NM ICEBERG3 6020S 05228W 6X4NM ICEBERG4 5844S 05055W 2X1NM ICEBERG5 5830S 05050W 2X1NM 4.ICEBERGS AREA A5700S 02000W 4700S 02000W 5200S 04900W 6100S 04900W B5600S 04900W 6100S 04900W 6600S 06600W 6600S 06600W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-3
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 6/7 WITH GUSTS BACK SECTOR S 5/4 BY 2/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY BACK SECTOR S 5 BY 01/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 6/7 WITH GUSTS BACK SECTOR S 5/4 BY 2/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY BACK SECTOR S 5 BY 2/0900 PROB OF MIST BLIZZARD PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
GERLACHE STRAIT : SW 4/5 BACK SECTOR E 4 BY 2/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
MARGARITA BAY : SE 3/4 BACK NW 4/3 BY 2/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 7/8 GUST WITH 9 INTENSITY DECR SW 7 GUST WITH 8 INTENSITY BY 2/1800 PROB OF FOG AND MIST IN PATCHES PROB OFCOASTAL BLIZZARD IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SE 5/4 BACK SECTOR E 4/3 BY 2/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 3/4 BACK SE 4/3 BY 2/1800 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 4/5 VEER SW 4/3 BY 2/1200 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 7 WITH GUSTS BY 2/0900 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NE 7 GUST WITH 8 INTENSITY BACK SECTOR N 7 WITH GUSTS BY 2/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/5 VEER SE 5/7 BY 2/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE=