1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-03, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 360: LOW 1005HPA AT 47S 64W MOV SE EXPECTED 49S 60W BY 04/1200 PROVOKES
WINDS FORCE 8 FROM SECTOR E WITH GUST IN SOUTH PATAGONIA COASTS ISLAS MALVINAS
COASTS BETWEEN 45S-50S 50W-60|W
WARNING 359: LOW 972HPA AT 55S 21W MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 45S-60S AND 20W-40W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
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
LOW 1005HPA 47S 64W MOV SE EXP 49S 60W BY 04/1200 EXTENDS CFNT AT 47S 64W 41S
58W 37S 59W MOV E
HIGH 1025HPA 49S 49W MOV NE INTSF EXP 38S 32W BY 04/1200
LOW 972HPA 55S 21W MOV SE DPN EXTENDS CFNT AT 55S 21W 51S 27W 52S 36W
LOW 1014HPA 37S 27W MOV SE WKN EXTENDS CFNT AT 37S 27W 35S 31W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-4
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3/4 MIST DISSIPATING PROB OFISOL SH RAIN IMPR
TOWARDS THE END OF THE PERIOD VIS MODERATE
OUTER RIO DE LA PLATA: SECTOR E 3/5 WITH GUSTS BACK SECTOR S 4 MIST DISSIPATING
PROB OFISOL SH RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 3 BACK SECTOR S PROB OF ISOL RAIN STORMS VIS
MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 3 VEER SECTOR S MIST FOG PATCHES
DISSIPATING PROB OFISOL RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 3/4 PROB OF ISOL RAIN SPELLS
OF GOOD WEATHER VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 4/5 WITH GUSTS VEER SECTOR N 3
PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 5/4 WITH GUSTS INCR SECTOR E
6/5 WITH GUSTS PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR E 5/8 WITH GUSTS DECR 5/4 WITH GUSTS
BY 4/0300 PROB OF RAIN VIS POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5/4 WITH GUSTS PROB OF ISOL RAIN AND
SNOW MIXTURE VIS MODERATE OCNL GOOD
ISLAS MALVINAS COASTS: SECTOR E 8 WITH GUSTS DECR 6 WITH GUSTS BY 4/0600 PROB OF
RAIN VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR W 6 GUST WITH 8 INTENSITY
BACK SECTOR S 3/5 WITH GUSTS PROB OF RAIN SPELLS OF GOOD WEATHER VIS MODERATE
OCNL POOR
E OF 40W: SECTOR S 4/5 WITH GUSTS BACK SECTOR E 3 WITH GUSTS PROB OF ISOL RAIN
VIS MODERATE
REST OF THE AREA: SECTOR N 3/4 PROB OF ISOL RAIN STORMS STARTING EVENING VIS
MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR S 4/5 WITH GUSTS PROB
OF ISOL RAIN RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE
REST OF THE AREA: SECTOR W 8 WITH GUSTS BACK SECTOR S 6/4 WITH GUSTS PROB OF
ISOL RAIN RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR E 3/4 BACK SECTOR N
4/5 WITH GUSTS PROB OF ISOL SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE
N OF 45 - W OF 50W: SECTOR N 5/3 BACK SECTOR W 4/3 PROB OF ISOL SH RAIN SPELLS
OF GOOD WEATHER VIS MODERATE
REST OF THE AREA: SECTOR E 6/8 WITH GUSTS BACK SECTOR N 4 PROB OF ISOL SH RAIN
SPELLS OF GOOD WEATHER VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 8/6 WITH GUSTS PROB OF ISOL
SNOW FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50 - N OF 55S: SECTOR E 4/6 GUST
WITH 8 INTENSITY DECR 5 PROB OF RAIN VIS MODERATE OCNL POOR
REST OF THE AREA: SW 5 VEER W 5/4 VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 4/3 PROB OF ISOL SNOW FALL SPELLS
OF GOOD WEATHER VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 03, AUGUST 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1032/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA SOUTHERN WEDDELL SEA MOV NE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN 65S-71S 50W-40W FROM 03/1500 UNTIL 04/0600
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 988HPA 72S 49W MOV E DPN
HIGH 1024HPA 65S 75W MOV NE WKN
LOW 1013HPA 62S 58W MOV E DPN
RIDGE 64S 42W 68S 38W 70S 37W 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 2026-08-4
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/4 WITH GUSTS DECR SECTOR W 4 BY 03/1500 PROB OF MIST VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4/5 WITH GUSTS BACK SW 4/3 BY 03/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 5/4 DECR SECTOR W 4 BY 03/1500 PROB OF MIST VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4/5 WITH GUSTS BACK SW 4/3 BY 03/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
GERLACHE STRAIT : SECTOR S 4/3 BACK SE 3 BY 03/2100 PROB OF FOG AND MIST IN PATCHES IMPR DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
MARGARITA BAY : NE 3/4 VEER SECTOR E 4/3 BY 03/0300 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 4/5 WITH GUSTS INCR SW 6/7 WITH GUSTS BY 03/2100 PROB OF MIST VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NE 4/5 WITH GUSTS INCR NE 6 BY 4/0300 PROB OF ISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 WITH GUSTS VEER SECTOR N 3/5 BY 03/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NW 4/5 VEER SECTOR N 5 BY 4/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SW 5/4 WITH GUSTS VEER SECTOR W 4/5 WITH GUSTS BY 03/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SW 4/5 VEER SECTOR W 5/6 WITH GUSTS BY 4/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/5 VEER SE 5 WITH GUSTS BY 03/2100 PROB OF MIST VIS MODERATE TO GOOD=