1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-02, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 359: STRONG BARIC GRADIENT ON MOV NE PROVOKES WINDS FORCE 8 FROM SECTOR
W WITH GUST BETWEEN 50S-60S 20W-40W FROM 02/2100
WARNING 357: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR N
WITH GUST BETWEEN 35S-45S AND 20W-40W UNTIL 03/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1022HPA 53S 60W MOV NE INTSF EXP 46S 45W BY 03/1200
HIGH 1018HPA 36S 55W MOV NE INTSF
LOW 985HPA 46S 28W MOV SE DPN EXTENDS CFNT AT MOV E
STRONG BARIC GRADIENT PENINSULA DE VALDES COASTS GOLFO DE SAN JORGE COASTS MOV
E
021400 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 6108S 052 49W
21X12NM A81 6002S 051 48W 28X25NM A76C 52 23S 03114W 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 2026-08-3
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 3 VEER SE BY 3/0000 PROB OF ISOL RAIN TOWARDS THE END
OF THE PERIOD VIS GOOD TO MODERATE
OUTER RIO DE LA PLATA: NE 4 WITH GUSTS VEER SE 3 BY 3/0000 PROB OF ISOL RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
URUGUAY SOUTH EAST COASTS: NE 3/4 WITH GUSTS PROB OF ISOL RAIN TOWARDS THE END
OF THE PERIOD VIS GOOD TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NE 3/4 WITH GUSTS PROB OF ISOL RAIN
TOWARDS NIGTH VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 6/4 WITH GUSTS VIS MODERATE
TO GOOD OCNL POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 7/6 WITH GUSTS BACK SECTOR W 4
WITH GUSTS BY 02/2100 PROB OF RAIN TOWARDS NIGTH IMPR VIS POOR TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 7/6 WITH GUSTS VEER SECTOR W /5
WITH GUSTS BY 02/2100 PROB OF RAIN TOWARDS NIGTH IMPR VIS POOR TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): NE 6/7 WITH GUSTS PROB OF RAIN SNOW FALL
VIS POOR
FIN DEL MUNDO COASTS(54S - 55S): NE 6 WITH GUSTS PROB OF ISOL RAIN SNOW FALL
VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: NE 6/7 WITH GUSTS PROB OF ISOL SNOW FALL VIS MODERATE TO
POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 8 WITH GUSTS BACK SECTOR S
/6 WITH GUSTS BY 02/2100 PROB OF RAIN TOWARDS THE END OF THE PERIOD IMPR VIS
VERY POOR TO POOR
REST OF THE AREA: SECTOR S 5/4 WITH GUSTS BACK SECTOR N BY 02/2100 PROB OF RAIN
TOWARDS EVENING IMPR VIS MODERATE TO GOOD OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR N 8 WITH GUSTS BACK
VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 7/6 WITH GUSTS PROB OF SNOW FALL SPELLS OF GOOD
WEATHER VIS POOR OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 6 WITH GUSTS BACK
SECTOR E /4 BY 02/1800 PROB OF RAIN AND SNOW MIXTURE IMPR TOWARDS THE END OF THE
PERIOD VIS MODERATE TO GOOD OCNL POOR
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS PROB OF ISOL RAIN SNOW FALL VIS
MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR S 7 WITH GUSTS VEER SECTOR W /8
BY 02/1800 PROB OF RAIN AND SNOW MIXTURE SNOW FALL VIS VERY POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SW 7/6 WITH GUSTS PROB OF SNOW FALL
IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SE 6/7 WITH GUSTS PROB OF ISOL SNOW FALL
TOWARDS EVENING VIS GOOD TO MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 02, 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 1002HPA 64S 55W MOV E DPN
LOW 997HPA 68S 50W MOV E DPN
HIGH 1025HPA 64S 78W MOV E WKN
HIGH 1002HPA 72S 58W MOV E INTSF
RIDGE 60S 40W 64S 40W 70S 40W MOV E WKN
021400 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 6108S 052 49W 21X12NM A81 6002S 051 48W 28X25NM A76C 52 23S 03114W 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 2026-08-3
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/4 WITH GUSTS DECR SW 4 BY 02/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 6/5 WITH GUSTS VEER SECTOR W 5/4 BY 02/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SW 5/4 WITH GUSTS DECR SW 4 BY 02/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 6/5 WITH GUSTS VEER SECTOR W 5/4 BY 02/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO POOR
GERLACHE STRAIT : SECTOR E 4/3 VEER SECTOR S 4/3 BY 3/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE
MARGARITA BAY : NW 3/4 VEER NE 4/3 BY 3/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 4/5 WITH GUSTS BACK SECTOR S 6/5 WITH GUSTS BY 3/0300 PROB OF MIST VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR E 4/5 BACK NE 4 BY 02/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 WITH GUSTS VEER NW 4/5 BY 02/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/5 VEER NW 5/6 BY 02/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SW 5/4 WITH GUSTS VEER NW 4/5 BY 02/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 4/5 VEER SECTOR N 3/4 BY 02/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD=