1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-03, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 403: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR S WITH
GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS FROM 04/0600
WARNING 402: LOW 996HPA AT 41S 48W MOV E DEEPENING PROVOKES WINDS FORCE 8 AROUND
ITSELF WITH GUST BETWEEN 35S-45S 25W-55W
WARNING 401: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 WITH GUST
BETWEEN 35S-45S AND 20W-55W
WARNING 397: LOW 972HPA AT 45S 23W MOV SE PROVOKES WINDS FORCE 10 AROUND ITSELF
WITH GUST BETWEEN 35S-55S AND 20W-30W UNTIL 04/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 972HPA 45S 23W MOV SE
LOW 996HPA 41S 48W MOV E DPN EXP 47S 32W BY 04/1200 EXTENDS CFNT AT 41S 48W 38S
49W 35S 52W MOV E
LOW 975HPA 60S 31W MOV SE EXTENDS CFNT AT 60S 31W 55S 40W 51S 68W MOV E
021400 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 5314S 02748W 17X6NM
A81 5850S 04713W 28X25NM D33B 5907S 05051W 21X12NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6155S 05403W 9X5NM ICEBERG1 5832S 05012W 5X3NM ICEBERG2 6045S 05241W 5X3NM
ICEBERG3 6016S 05206W 6X4NM ICEBERG4 5835S 05025W 2X1NM ICEBERG5 5839S 04948W
2X1NM 4.ICEBERGS AREA A5700S 02000W 4700S 02000W 5200S 04900W 6100S 04900W
B5600S 04900W 6100S 04900W 6600S 06600W 6600S 06600W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-4
COASTAL AREAS:
INNER RIO DE LA PLATA: SW 4/3 LOW PROB OF ISOL RAIN DURING THE MORNING IMPR VIS
MODERATE TO GOOD
OUTER RIO DE LA PLATA: SW 4 VIS GOOD
URUGUAY SOUTH EAST COASTS: SW 6/5 WITH GUSTS DECR 4 BY 4/0600 PROB OF ISOL
STORMS TOWARDS NIGTH IMPR VIS MODERATE TO GOOD OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): SW 5/4 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 4 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SW 4/5 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SW 5/4 INCR 6/7 GUST WITH 8 INTENSITY BY
4/0900 VIS GOOD TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SW 6/5 WITH GUSTS BACK S 7/8 BY 4/0600 PROB
OF RAIN AND SNOW MIXTURE STARTING NIGTH VIS GOOD TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 4 VEER SE 7/8 WITH GUSTS BY 4/0600
PROB OF RAIN AND SNOW MIXTURE STARTING NIGTH VIS GOOD TO POOR
ISLAS MALVINAS COASTS: W 6 WITH GUSTS BACK SW 5/4 BY 03/1200 PROB OF RAIN AND
SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: W 5/6 WITH GUSTS VEER NW 7/8 WITH
GUSTS BY 03/2100 PROB OF STORMS STARTING NIGTH VIS MODERATE TO VERY POOR
REST OF THE AREA: NW 8 VEER SW 6 WITH GUSTS BY 03/1800 PROB OF STORMS DURING
THE EARLY MORNING IMPR VIS VERY POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 50S: W 10 WITH GUSTS
DECR 6 WITH GUSTS BY 4/0000 VEER NW 8 WITH GUSTS BY 4/0600 PROB OF ISOL RAIN VIS
VERY POOR TO MODERATE
W OF 30 - N OF 45S: W 6 WITH GUSTS VEER N 8 WITH GUSTS BY 03/1800 VEER SW 6
WITH GUSTS BY 4/0900 PROB OF STORMS DURING THE EARLY MORNING IMPR VIS VERY POOR
TO GOOD
E OF 30 - S OF 50S: SW 9 WITH GUSTS VEER W 6/5 WITH GUSTS BY 4/0000 PROB OF HVY
RAIN DURING THE EVENING IMPR VIS VERY POOR TO GOOD
REST OF THE AREA: SW 5 PROB OF ISOL RAIN VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: NE 5/6 GUST WITH 8
INTENSITY VEER SW 6 WITH GUSTS BY 03/1500 PROB OF HVY STORMS VIS VERY POOR TO
MODERATE
W OF 50 - N OF 45S: SW 5/6 WITH GUSTS PROB OF ISOL SH VIS MODERATE
E OF 50 - S OF 45S: W 5 WITH GUSTS BACK SW 6 WITH GUSTS BY 4/0000 PROB OF ISOL
SH STARTING NIGTH VIS GOOD TO MODERATE
REST OF THE AREA: W 5/6 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR S 8 WITH
GUSTS VEER NW 6 WITH GUSTS BY 03/2100 VIS MODERATE
W OF 30 - N OF 55S: NW 5/6 WITH GUSTS BACK SE 4 BY 4/0900 PROB OF ISOL SNOW
FALL STARTING NIGTH VIS MODERATE
E OF 30 - S OF 55S: NW 4/5 WITH GUSTS BACK SW 5/4 BY 4/0300 VIS GOOD
REST OF THE AREA: NW 6/7 WITH GUSTS BACK SW 5/4 BY 03/1500 PROB OF SNOW FALL
DURING THE MORNING IMPR VIS MODERATE TO GOOD
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR S 5/6 PROB OF SNOW FALL VIS
MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 4 BACK SE 5/6 WITH GUSTS BY 4/0300 VIS
GOOD TO MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 03, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1125/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST IN 63S-72S 38W-30W FROM 04/0300 UNTIL 04/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 971HPA 61S 34W MOV E WKN
LOW 991HPA 62S 55W MOV E WKN
HIGH 1005HPA 68S 83W MOV NE INTSF
LOW 999HPA 61S 80W MOV E WKN
021400 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 5314S 02748W 17X6NM A81 5850S 04713W 28X25NM D33B 5907S 05051W 21X12NM 3.ICEBERGS SMALLER THAN 10NM D33C 6155S 05403W 9X5NM ICEBERG1 5832S 05012W 5X3NM ICEBERG2 6045S 05241W 5X3NM ICEBERG3 6016S 05206W 6X4NM ICEBERG4 5835S 05025W 2X1NM ICEBERG5 5839S 04948W 2X1NM 4.ICEBERGS AREA A5700S 02000W 4700S 02000W 5200S 04900W 6100S 04900W B5600S 04900W 6100S 04900W 6600S 06600W 6600S 06600W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-4
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 INCR SW 6 BY 03/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 5/6 WITH GUSTS VEER SW 5/6 WITH GUSTS BY 03/1800 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 4/5 INCR SW 6 BY 03/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 5/6 WITH GUSTS VEER SW 5/6 WITH GUSTS BY 03/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
GERLACHE STRAIT : SE 4/3 VEER SECTOR S 4 BY 03/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR S 3/4 BACK SE 4/3 BY 03/2100 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 6/5 WITH GUSTS VEER SECTOR S 5/6 WITH GUSTS BY 03/1800 PROB OF MIST VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR E 3/4 VEER SE 4/3 BY 03/1800 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: SW 3/4 VEER NE 4 BY 03/1800 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 W 4/3 VEER NW 4/5 BY 03/1800 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SW 5/6 VEER SECTOR W 5 WITH GUSTS BY 4/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 6/5 WITH GUSTS BACK SW 7/5 WITH GUSTS BY 4/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 BACK NE 5/7 BY 03/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD=