1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 12, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 996HPA 66S 48W MOV E WKN
LOW 994HPA 69S 48W MOV E WKN
LOW 999HPA 68S 59W MOV E WKN
LOW 1007HPA 65S 75W MOV SE DPN
111400 UTC 1.SEA ICE LIMIT 5545S 02000W 5412S 02618W 5547S 03218W 5632S 03758W 5720S 04317W 5923S 04813W 6002S 05247W 6126S 05654W 6005S 06032W 6010S 06337W 6026S 06559W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5714S 04700W 28X25NM D33B 5842S 04939W 21X12NM A76C 5407S 02620W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D32 5757S 03911W 9X6NM D33C 6152S 05420W 9X5NM ICEBERG1 5852S 04703W 5X3NM ICEBERG2 6014S 05224W 5X3NM ICEBERG3 5845S 05108W 6X4NM ICEBERG4 6012S 05130W 2X1NM ICEBERG5 5844S 05130W 2X1NM 4.ICEBERGS AREA A5616S 02000W 4901S 02000W 5200S 04009W 5820S 04000W B5820S 04000W 5317S 03933W 5903S 06716W 6145S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-13
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 5/4 BY 12/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 5/6 WITH GUSTS VEER SECTOR W 5/4 BY 12/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 5/4 BY 12/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 5/6 WITH GUSTS VEER SECTOR W 5/4 BY 12/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SECTOR E 3/4 VEER SE 4 BY 12/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : SECTOR N 3/4 VEER SE 5 BY 12/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
EREBUS Y TERROR GULF : SW 6/5 VEER NW 4 BY 12/1500 PROB OF MIST VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 3/4 BACK SE 4/5 BY 12/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 3/4 BACK SW 4/5 BY 12/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 4/3 VEER SECTOR W 4/3 BY 12/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SECTOR S 3/4 VEER NE 4/5 BY 12/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NW 3/4 BACK SECTOR S 3/4 BY 12/1200 PROB OF MIST VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SE 4 BY 12/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-12, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 420: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM SECTOR
W WITH GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) FROM 12/0600
WARNING 419: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM S WITH
GUST BETWEEN 35S-45S 20W-40W FROM 12/1500
WARNING 418: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 GUST WITH 9
INTENSITY BETWEEN 35S-45S 20W-30W
WARNING 417: LOW 975HPA AT 57S 25W MOV E NOT CHANGE PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 50S-60S AND 20W-40W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
111400 UTC 1.SEA ICE LIMIT 5545S 02000W 5412S 02618W 5547S 03218W 5632S 03758W
5720S 04317W 5923S 04813W 6002S 05247W 6126S 05654W 6005S 06032W 6010S 06337W
6026S 06559W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5714S 04700W 28X25NM
D33B 5842S 04939W 21X12NM A76C 5407S 02620W 17X6NM 3.ICEBERGS SMALLER THAN 10NM
D32 5757S 03911W 9X6NM D33C 6152S 05420W 9X5NM ICEBERG1 5852S 04703W 5X3NM
ICEBERG2 6014S 05224W 5X3NM ICEBERG3 5845S 05108W 6X4NM ICEBERG4 6012S 05130W
2X1NM ICEBERG5 5844S 05130W 2X1NM 4.ICEBERGS AREA A5616S 02000W 4901S 02000W
5200S 04009W 5820S 04000W B5820S 04000W 5317S 03933W 5903S 06716W 6145S 06716W
LOW 975HPA 57S 25W MOV E NC EXTENDS CFNT AT 49S 20W 47S 23W 45S 27W MOV NE
CFNT AT 51S 49W 50S 52W 49S 54W MOV NE
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-13
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 4/5 WITH GUSTS PROB OF SH TOWARDS THE END OF THE
PERIOD IMPR VIS MODERATE
OUTER RIO DE LA PLATA: SE 5/6 WITH GUSTS PROB OF SH TOWARDS THE END OF THE
PERIOD IMPR VIS MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR S 4/5 WITH GUSTS PROB OF ISOL RAIN TOWARDS THE
END OF THE PERIOD IMPR VIS MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 5/6 WITH GUSTS PROB OF SH SPELLS
OF GOOD WEATHER VIS MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 5/4 WITH GUSTS PROB OF ISOL
RAIN STARTING EVENING IMPR VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 4 VEER NW 3/4 BY 12/1500 PROB
OF SH TOWARDS EVENING IMPR VIS MODERATE TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): NW 4/5 WITH GUSTS PROB OF SH TOWARDS
MORNING IMPR VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5/6 WITH GUSTS PROB OF SH RAIN AND
SNOW MIXTURE STARTING EARLY MORNING IMPR VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF
RAIN AND SNOW MIXTURE VIS MODERATE TO POOR
ISLAS MALVINAS COASTS: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF SH RAIN AND
SNOW MIXTURE VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 8 WITH GUSTS PROB OF HVY RAIN
VIS VERY POOR
W OF 30 - E OF 40W: SECTOR S 6/8 WITH GUSTS PROB OF RAIN VIS VERY POOR
REST OF THE AREA: SE 6/5 PROB OF SH RAIN VIS POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: NW 6 WITH GUSTS
BACK SECTOR S 6 WITH GUSTS BY 12/0600 PROB OF SH RAIN VIS POOR TO MODERATE
W OF 30 - N OF 45S: SECTOR S 5 WITH GUSTS PROB OF SH VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6 GUST WITH 8 INTENSITY PROB OF SH RAIN AND SNOW
MIXTURE VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR S 5 WITH GUSTS PROB
OF SH VIS MODERATE OCNL POOR
REST OF THE AREA: SW 6 WITH GUSTS PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE
OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 8 WITH GUSTS PROB OF
SNOW FALL VIS VERY POOR
E OF 30 - S OF 55S: SECTOR S 6 WITH GUSTS PROB OF SNOW FALL VIS VERY POOR
REST OF THE AREA: SW 8/6 WITH GUSTS PROB OF SNOW FALL TOWARDS THE END OF THE
PERIOD IMPR VIS POOR TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SW 6/7 GUST WITH 8 INTENSITY
PROB OF SH RAIN AND SNOW MIXTURE VIS POOR
REST OF THE AREA: SW 7/6 GUST WITH 8 INTENSITY PROB OF SH RAIN AND SNOW MIXTURE
VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7/8 WITH GUSTS PROB OF RAIN SNOW
FALL VIS VERY POOR TO POOR
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