1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-07, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 412: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 45S-55S 20W-40W FROM 08/0000
WARNING 411: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 45S-60S AND 40W-60W
WARNING 410: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS DRAKE AREA (55S- 60S AND 60W-
67W) UNTIL 08/0000
WARNING 407: LOW 981HPA AT 42S 19W MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 35S-45S AND 20W-30W UNTIL 07/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
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 55W MOV NE WKN
LOW 978HPA 53S 28W MOV SE WKN EXTENDS CFNT AT 53S 28W 48S 49W 46S 34W MOV E
LOW 981HPA 42S 19W MOV E WKN ASOCIATED WITH OFNT AT 46S 20W 39S 22W
CFNT AT 60S 47W 56S 50W 54S 50W MOV E
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 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 MIST FOG PATCHES DISSIPATING VIS GOOD OCNL
MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR W 3 VEER SECTOR N 3/4 PROB OF ISOL RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 3 VEER SECTOR N 3/4 PROB OF ISOL
RAIN TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 4/5 VEER SECTOR N 4/6 WITH
GUSTS VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): NW 5 WITH GUSTS VEER SECTOR N 5/4 WITH
GUSTS VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 3/4 BACK SECTOR E 3 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 6/4 GUST WITH 8 INTENSITY PROB OF
ISOL DRIZZLE SPELLS OF GOOD WEATHER VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 8/5 WITH GUSTS PROB OF ISOL RAIN
SNOW FALL VIS POOR
ISLAS MALVINAS COASTS: SECTOR W 8/5 WITH GUSTS PROB OF ISOL RAIN RAIN AND SNOW
MIXTURE VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR W 8/6 WITH GUSTS PROB OF SH
RAIN VIS POOR
REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF SH RAIN VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR W 8/6 WITH
GUSTS PROB OF ISOL RAIN RAIN AND SNOW MIXTURE VIS POOR
W OF 30 - N OF 45S: SECTOR W 6 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE OCNL
POOR
REST OF THE AREA: SECTOR W 6/8 WITH GUSTS PROB OF HVY RAIN SNOW FALL VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 6 WITH GUSTS PROB
OF ISOL SH RAIN VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6/8 WITH GUSTS PROB OF ISOL SH RAIN RAIN AND SNOW
MIXTURE VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 6/8 WITH GUSTS PROB
OF HVY SNOW FALL SPELLS OF GOOD WEATHER VIS POOR
E OF 30 - S OF 55S: SECTOR W 3/4 WITH GUSTS VEER SECTOR N 5/6 GUST WITH 8
INTENSITY PROB OF HVY SNOW FALL SPELLS OF GOOD WEATHER VIS POOR
REST OF THE AREA: SECTOR W 3/4 WITH GUSTS BACK SECTOR S 5/6 GUST WITH 8
INTENSITY PROB OF HVY SNOW FALL SPELLS OF GOOD WEATHER VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 6/8 WITH GUSTS PROB OF HVY
SNOW FALL VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8/6 WITH GUSTS PROB OF SNOW FALL
VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 07, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1137/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MAR DE LA FLOTA COASTS MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR S WITH GUST IN 62S-65S 59W-55W UNTIL 08/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 969HPA 62S 53W MOV E DPN
LOW 988HPA 70S 75W MOV E DPN
HIGH 980HPA 62S 59W MOV NE INTSF EXTENDS RIDGE AT 62S 59W 62S 52W 70S 48W MOV E
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 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-8
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 5/4 BY 07/2100 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 S 5/6 WITH GUSTS BACK SE 7/8 WITH GUSTS BY 07/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 5/4 BY 07/2100 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 S 5/6 WITH GUSTS BACK SE 7/8 WITH GUSTS BY 07/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS VERY POOR TO MODERATE
GERLACHE STRAIT : NE 3/4 VEER SECTOR E 4/5 BY 07/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : NE 3/4 VEER SECTOR E 4 BY 8/0300 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 8 WITH GUSTS BACK SECTOR S 7 WITH GUSTS BY 07/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH 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 07/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON 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 07/1800 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 07/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SE 3/4 VEER SECTOR S 5 WITH GUSTS BY 8/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS NIGTH VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 BACK SE 5 BY 07/1800 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 07/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD=