1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-08, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 368: STRONG BARIC GRADIENT MOV NE WILL PROVOKE WINDS FORCE 8 FROM SECTOR
W WITH GUST BETWEEN 35S-40S 20W-45W FROM 08/1800
WARNING 367: LOW 989HPA AT 42S 57W MOV NE WEAKENING PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 35S-45S AND 50W-65W
WARNING 366: STRONG BARIC GRADIENT MOV NE WILL PROVOKE WINDS FORCE 8 FROM SECTOR
S WITH GUST BETWEEN 50S-60S AND 50W-70W FROM 08/1500
WARNING 365: LOW 950HPA AT 46S 39W MOV SE DEEPENING EXPECTED 58S 20W BY 09/1200
PROVOKES WINDS FORCE 10 AROUND ITSELF WITH GUST BETWEEN 40S-60S AND 20W-50W
UNTIL 09/1200
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 989HPA 42S 57W MOV NE WKN EXTENDS CFNT38S 58W 40S 56W 42S 54W MOV NE
LOW 950HPA 46S 39W MOV SE DPN EXP 58S 20W BY 09/1200 EXTENDS CFNT AT 35S 31W 42S
27W 47S 27W MOV E
081400 UTC 1.SEA ICE LIMIT 5803S 02000W 5605S 02618W 5702S 03217W 5731S 03757W
5737S 04317W 5926S 04814W 6027S 05248W 6203S 05655W 6333S 06033W 6409S 06337W
6408S 06559W 6257S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6110S 053 30W
21X12NM A81 5919S 050 50W 28X25NM A76C 52 43S 03122W 16X6NM 3.ICEBERGS AREA
A5820S 02000W 4600S 02000W 5300S 03800W 5805S 03800W B5805S 03800W 5300S 03800W
5800S 05000W 6040S 05000W C6040S 05000W 5800S 05000W 6300S 06716W 6620S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-9
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR W 4/3 WITH GUSTS VIS GOOD
OUTER RIO DE LA PLATA: SECTOR W 6/5 WITH GUSTS VIS GOOD
URUGUAY SOUTH EAST COASTS: NW 4 WITH GUSTS BACK SW 7 WITH GUSTS BY 08/1800 PROB
OF ISOL RAIN TOWARDS EVENING IMPR VIS MODERATE OCNL GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 6 WITH GUSTS PROB OF ISOL RAIN
TOWARDS EVENING VIS MODERATE TO VERY POOR OCNL GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 8/6 WITH GUSTS PROB OF ISOL SH
RAIN VIS VERY POOR TO MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SW 8/6 WITH GUSTS PROB OF ISOL SH RAIN
VIS VERY POOR TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 7/6 WITH GUSTS PROB OF ISOL SH
RAIN VIS POOR TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 6/8 WITH GUSTS PROB OF ISOL SNOW
FALL RAIN AND SNOW MIXTURE VIS MODERATE TO VERY POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 5/8 WITH GUSTS PROB OF SNOW FALL
SPELLS OF GOOD WEATHER VIS VERY POOR TO POOR OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR S 5/8 WITH GUSTS PROB OF SNOW FALL VIS VERY POOR
TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 45W: SECTOR W 7/8 WITH GUSTS PROB OF
RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR W 8 WITH GUSTS PROB OF RAIN VIS VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 7 WITH GUSTS VEER SECTOR N 7
WITH GUSTS BY 9/0900 PROB OF RAIN VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 9/6 WITH GUSTS PROB
OF RAIN RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
N OF 45 - W OF 50W: SECTOR W 8 WITH GUSTS BACK SECTOR S 7 WITH GUSTS BY 9/0300
PROB OF RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 5/7 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE SNOW
FALL VIS MODERATE TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR E 9 WITH GUSTS VEER SECTOR S BY
08/2100 PROB OF RAIN AND SNOW MIXTURE SNOW FALL VIS VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR S 8/7 WITH GUSTS PROB
OF SNOW FALL RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 6/8 WITH GUSTS PROB OF SNOW FALL RAIN AND SNOW
MIXTURE VIS VERY POOR TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 6/8 WITH GUSTS PROB OF SNOW FALL
IMPR TOWARDS EVENING VIS VERY POOR TO POOR OCNL MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 08, AUGUST 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 09:00UTC
LOW 978HPA 68S 43W MOV SE DPN
RIDGE 60S 85W 64S 84W 69S 84W MOV E INTSF
071400 UTC 1.SEA ICE LIMIT 5643S 02000W 5515S 02618W 5601S 03217W 5610S 03757W 5750S 04316W 5928S 04814W 6045S 05247W 6149S 05655W 6225S 06032W 6122S 06336W 6147S 06559W 6159S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6110S 053 30W 21X12NM A81 5919S 050 50W 28X25NM A76C 52 43S 03122W 16X6NM 3.ICEBERGS AREA A5820S 02000W 4600S 02000W 5300S 03800W 5805S 03800W B5805S 03800W 5300S 03800W 5800S 05000W 6040S 05000W C6040S 05000W 5800S 05000W 6300S 06716W 6620S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-9
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS INCR SW 7 GUST WITH 8 INTENSITY BY 08/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 4/5 WITH GUSTS BACK SECTOR S 6/7 BY 9/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS INCR SW 7 GUST WITH 8 INTENSITY BY 9/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 4/5 WITH GUSTS BACK SECTOR S 6/7 BY 9/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
GERLACHE STRAIT : SW 3/4 BACK SECTOR S 4/5 BY 08/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR N 3/4 VEER NE 4/3 BY 08/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 6/7 GUST WITH 8 INTENSITY BACK SECTOR S 6/5 BY 9/0300 PROB OF MIST PROB OFCOASTAL BLIZZARD WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/7 WITH GUSTS VEER NW 5/6 WITH GUSTS BY 9/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5 WITH GUSTS VEER NW 6/5 WITH GUSTS BY 08/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 3/4 VEER SECTOR N 4/5 WITH GUSTS BY 9/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA N OF 64S: NW 3/4 BACK SW 5/6 WITH GUSTS BY 9/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR N 4/5 WITH GUSTS BACK SECTOR S 6/7 WITH GUSTS BY 08/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 5/4 WITH GUSTS VEER SE 5/7 WITH GUSTS BY 9/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD=