1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-9, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 369: STRONG BARIC GRADIENT ON 35S 40W 20S 40W EXPECTED BY 09/1800 WILL
PROVOKE WINDS FORCE 9 FROM SECTOR W WITH GUST
WARNING 368: STRONG BARIC GRADIENT 35S 40W 20S 40W MOV E EXPECTED BY 09/1800
PROVOKES WINDS FORCE 9 FROM SECTOR N WITH GUST
WARNING 367: STRONG BARIC GRADIENT ON 35S 40W 40S 55W MOV E PROVOKES WINDS FORCE
8 FROM SECTOR W WITH GUST
WARNING 366: STRONG BARIC GRADIENT MOV SW PROVOKES WINDS FORCE 8 FROM SECTOR S
WITH GUST IN FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS DRAKE AREA (55S- 60S AND
60W- 67W) BETWEEN 40S-60S AND 50W-60W
WARNING 365: LOW 948HPA AT 50S 32W MOV SE DEEPENING EXPECTED 60S 20W BY 09/1500
PROVOKES WINDS FORCE 10 AROUND ITSELF WITH GUST IN CENTRAL EAST AREA (40S- 50S
AND 20W- 40W) SOUTH EAST AREA (50S- 60S AND 20W- 40W)
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 948HPA 52S 32W MOV SE DPN EXP 60S 20W BY 09/1500 MOV SE ASOCIATED WITH OFNT
AT 55S 20W 58S 38W 54S 44W 50S 45W
LOW 987HPA 42S 50W MOV SE BLDN EXP 46S 30W BY 10/0000 EXTENDS CFNT AT ASOCIATED
WITH OFNT AT 42S 46W 44S 52W 43S 53W
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-10
COASTAL AREAS:
INNER RIO DE LA PLATA: SW 4 S 4/3 VIS GOOD
OUTER RIO DE LA PLATA: SW 5/4 S 4/3 PROB OF SH RAIN STARTING EVENING VIS GOOD
OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SW 5 WITH GUSTS 8/5 PROB OF SH RAIN STARTING EVENING
VIS MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SW 6 GUST WITH 9 INTENSITY PROB OF SH
RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 6 GUST WITH 8 INTENSITY DECR 5
WITH GUSTS PROB OF SH RAIN VIS MODERATE OCNL POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 6 WITH GUSTS 8 WITH GUSTS DECR
PROB OF SH OF RAIN RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 5/5 WITH GUSTS PROB OF SH OF
SNOW SNOW FALL VIS POOR MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 7/6 WITH GUSTS 8/5 DECR PROB OF
ISOL SNOW FALL VIS POOR OCNL MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 8/7 WITH GUSTS PROB OF ISOL SNOW
FALL SPELLS OF GOOD WEATHER VIS POOR MODERATE
ISLAS MALVINAS COASTS: SECTOR S 8/7 WITH GUSTS PROB OF SH OF SNOW SNOW FALL VIS
POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 5/6 WITH GUSTS INCR 8 WITH
GUSTS AFTERWARDS SECTOR W 8/6 WITH GUSTS PROB OF HVY RAIN STORMS VIS VERY POOR
E OF 40W: SECTOR N 7/8 WITH GUSTS SECTOR W 9 WITH GUSTS PROB OF HVY RAIN STORMS
NXT SH RAIN VIS VERY POOR
: SECTOR W 8/9 WITH GUSTS PROB OF SH RAIN VIS POOR OCNL VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SW 8 WITH GUSTS
SECTOR N 8 WITH GUSTS NW 9 WITH GUSTS PROB OF SH RAIN VIS VERY POOR
W OF 30 - N OF 45S: SW 8 WITH GUSTS W 8 WITH GUSTS PROB OF RAIN STORMS NXT SH
OF SNOW SNOW FALL VIS VERY POOR
E OF 30 - S OF 45S: SECTOR W 8/7 WITH GUSTS N 8 WITH GUSTS PROB OF DRIZZLE RAIN
NXT HVY RAIN VIS POOR VERY POOR
REST OF THE AREA: SECTOR W 9 WITH GUSTS S 8 WITH GUSTS PROB OF DRIZZLE RAIN NXT
ISOL SNOW FALL VIS POOR OCNL VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR W 6 WITH
GUSTS SECTOR S 8/6 GUST WITH 8 INTENSITY PROB OF SH RAIN NXT SH OF SNOW SNOW
FALL VIS POOR
E OF 50 - S OF 45S: SECTOR S 5/7 GUST WITH 8 INTENSITY PROB OF ISOL SNOW FALL
VIS POOR
REST OF THE AREA: SECTOR S 7/8 WITH GUSTS PROB OF SNOW FALL VIS POOR OCNL
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 8 WITH GUSTS SECTOR W
9 WITH GUSTS PROB OF SH RAIN NXT SNOW FALL VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR S 9/8 WITH GUSTS DECR 6 GUST WITH 8 INTENSITY PROB OF
ISOL SNOW FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR S 6/7 GUST WITH 8
INTENSITY PROB OF SH OF RAIN SNOW FALL VIS POOR
REST OF THE AREA: SECTOR S 8 WITH GUSTS DECR 7 GUST WITH 8 INTENSITY PROB OF
ISOL SNOW FALL VIS VERY POOR OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 8 WITH GUSTS PROB OF ISOL SNOW FALL VIS
POOR OCNL VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 09, AUGUST 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1034/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-64S 70W-60W UNTIL 10/0600
1035/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN 63S-70S 90W-70W FROM 09/0600 UNTIL 10/0600
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 976HPA 68S 35W MOV SE WKN
LOW 990HPA 71S 85W MOV E DPN
RIDGE 60S 80W 65S 75W 69S 72W MOV E INTSF
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-10
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 7/8 WITH GUSTS DECR SW 7 GUST WITH 8 INTENSITY BY 9/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 5/7 WITH GUSTS VEER NW 3/4 BY 9/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 7/8 WITH GUSTS DECR SW 7 GUST WITH 8 INTENSITY BY 9/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 5/7 WITH GUSTS VEER NW 3/4 BY 9/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
GERLACHE STRAIT : SE 3/4 BACK SECTOR E 4/3 BY 9/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : SECTOR N 3/4 VEER NE 4/3 BY 9/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
EREBUS Y TERROR GULF : SW 5/4 WITH GUSTS VEER NW 4/5 BY 9/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 4/5 INCR SECTOR W 6/8 WITH GUSTS BY 9/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 5/7 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 9/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 3/4 BACK SECTOR W 5/6 WITH GUSTS BY 9/0600 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SW 3/4 BACK SECTOR S 5/7 WITH GUSTS BY 9/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 5/6 WITH GUSTS VEER SW 6/5 WITH GUSTS BY 9/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/5 WITH GUSTS BACK NE 5/4 WITH GUSTS BY 9/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD=