1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 07, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1136/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV NE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR S WITH GUST IN 62S-65S 59W-55W FROM 07/0600 UNTIL 08/0000
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 973HPA 63S 55W MOV E DPN EXTENDS CFNT AT 63S 55W 62S 60W 60S 68W MOV E
LOW 975HPA 70S 70W MOV E WKN
061400 UTC 1.SEA ICE LIMIT 5524S 02000W 5401S 02618W 5330S 03217W 5638S 03757W 5756S 04317W 5954S 04813W 6014S 05247W 6159S 05655W 6047S 06032W 6110S 06336W 6118S 06558W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5802S 04744W 28X25NM D33B 5855S 05114W 21X12NM A76C 5338S 02618W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D33C 6150S 05358W 9X5NM ICEBERG1 5843S 04813W 5X3NM ICEBERG2 6024S 05234W 5X3NM ICEBERG3 5939S 05034W 6X4NM ICEBERG4 5842S 04919W 2X1NM ICEBERG5 5913S 04746W 2X1NM ICEBERG6 6020S 05128W 2X1NM 4.ICEBERGS AREA A5626S 02000W 4900S 02000W 5400S 04000W 5817S 4000S B5817S 04000W 5501S 04000W 5757S 04656W 6102S 6716W 6923S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-8
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 VEER SECTOR W 5/4 BY 7/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 6/5 WITH GUSTS BACK SECTOR S 7/8 WITH GUSTS BY 7/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 VEER SECTOR W 5/4 BY 7/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 6/5 WITH GUSTS BACK SECTOR S 7/8 WITH GUSTS BY 7/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
GERLACHE STRAIT : NE 3/4 VEER SECTOR E 4/5 BY 7/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS MORNING VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : SECTOR N 3/4 VEER NE 4 BY 7/1200 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 7 GUST WITH 8 INTENSITY BACK SECTOR S 8 WITH GUSTS BY 7/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 7 GUST WITH 8 INTENSITY VEER SECTOR W 7/5 WITH GUSTS BY 7/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5/6 WITH GUSTS INCR SW 7 GUST WITH 8 INTENSITY BY 7/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/5 BACK SECTOR S 5/4 BY 06/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SW 3/4 BACK SE 5 WITH GUSTS BY 7/0900 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 BACK SE 5 BY 7/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 BACK SECTOR E 5/6 BY 7/0600 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-7, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 411: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 45S-60S AND 40W-60W FROM 07/0600
WARNING 410: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS DRAKE AREA (55S- 60S AND 60W-
67W)
WARNING 407: LOW 987HPA AT 42S 26W MOV E WEAKENING PROVOKES WINDS FORCE 8 AROUND
ITSELF WITH GUST BETWEEN 35S-45S AND 20W-30W UNTIL 07/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
061400 UTC 1.SEA ICE LIMIT 5524S 02000W 5401S 02618W 5330S 03217W 5638S 03757W
5756S 04317W 5954S 04813W 6014S 05247W 6159S 05655W 6047S 06032W 6110S 06336W
6118S 06558W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5802S 04744W 28X25NM
D33B 5855S 05114W 21X12NM A76C 5338S 02618W 17X6NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6150S 05358W 9X5NM ICEBERG1 5843S 04813W 5X3NM ICEBERG2 6024S 05234W 5X3NM
ICEBERG3 5939S 05034W 6X4NM ICEBERG4 5842S 04919W 2X1NM ICEBERG5 5913S 04746W
2X1NM ICEBERG6 6020S 05128W 2X1NM 4.ICEBERGS AREA A5626S 02000W 4900S 02000W
5400S 04000W 5817S 4000S B5817S 04000W 5501S 04000W 5757S 04656W 6102S 6716W
6923S 06716W
HIGH 1031HPA 35S 57W MOV NE WKN
LOW 987HPA 42S 26W MOV SE DPN EXTENDS CFNT AT 38S 24W 32S 29W 29S 34W MOV E
LOW 978HPA 55S 37W MOV SE DPN EXTENDS CFNT AT 55S 37W 51S 38W 48S 42W MOV NE
CFNT AT 58S 21W 53S 24W 49S 30W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-8
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3/4 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR N 3/4 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 3/4 BACK SECTOR W 3/4 BY 7/1200 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): NW 4 INCR 4/5 WITH GUSTS BY 7/1500 VIS
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): NW 4/5 WITH GUSTS VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): NW 5/6 WITH GUSTS VEER SECTOR N 6 WITH
GUSTS BY 7/1800 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): NW 3/4 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S) N OF 51S: SECTOR W 4/5 WITH GUSTS VIS GOOD
OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR W 7 GUST WITH 8
INTENSITY BACK SW 6/5 WITH GUSTS BY 7/1800 PROB OF ISOL RAIN SNOW FALL VIS
MODERATE OCNL POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 8/7 WITH GUSTS PROB OF RAIN SNOW
FALL VIS POOR
ISLAS MALVINAS COASTS: SECTOR W 8/7 WITH GUSTS DECR 6 WITH GUSTS BY 7/2100 PROB
OF RAIN SNOW FALL VIS POOR TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR W 8 WITH GUSTS BACK SW 8/7
WITH GUSTS BY 7/0900 PROB OF RAIN STORMS IMPR TOWARDS THE END OF THE PERIOD VIS
POOR OCNL MODERATE
W OF 40 - W OF 30W: SW 7/6 GUST WITH 8 INTENSITY VEER SECTOR W 6/5 WITH GUSTS
BY 7/2100 PROB OF SH RAIN IMPR STARTING EARLY MORNING VIS MODERATE OCNL POOR
REST OF THE AREA: SW 5 WITH GUSTS VEER SECTOR W WITH GUSTS BY 7/1800 PROB OF
ISOL RAIN DURING THE EARLY MORNING VIS MODERATE OCNL GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45 - E OF 30W: SW 8 WITH GUSTS
VEER SECTOR W 8/7 WITH GUSTS BY 7/1500 PROB OF RAIN STORMS VIS POOR
N OF 45 - W OF 30W: SECTOR W 7/6 GUST WITH 8 INTENSITY PROB OF SH DURING THE
EVENING VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF SH VIS MODERATE
OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 6 WITH GUSTS INCR
6/7 GUST WITH 8 INTENSITY BY 7/1800 PROB OF SH RAIN IMPR STARTING EVENING VIS
MODERATE
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY INCR 7/8 WITH GUSTS BY
7/1800 PROB OF ISOL RAIN SNOW FALL DURING THE EARLY MORNING VIS MODERATE TO
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) W OF 30W: SECTOR W 6/7 GUST WITH 8
INTENSITY PROB OF ISOL SNOW FALL VIS POOR OCNL MODERATE
N OF 55 - E OF 30W: NW 7/6 GUST WITH 8 INTENSITY BACK SW 5 WITH GUSTS BY 7/2100
PROB OF ISOL SNOW FALL VIS MODERATE
REST OF THE AREA: SECTOR W 5 WITH GUSTS PROB OF ISOL SNOW FALL VIS GOOD OCNL
MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50W: SECTOR W 6/7 GUST WITH 8
INTENSITY INCR 7/8 WITH GUSTS BY 7/0600 PROB OF ISOL SNOW FALL VIS MODERATE TO
POOR
REST OF THE AREA: SECTOR W 7/6 GUST WITH 8 INTENSITY INCR 7/8 WITH GUSTS BY
7/1500 PROB OF ISOL SNOW FALL VIS MODERATE TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7/8 WITH GUSTS BACK SW 8/7 WITH
GUSTS BY 7/0900 DECR 7/6 GUST WITH 8 INTENSITY BY 7/2100 PROB OF RAIN SNOW FALL
VIS POOR
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