1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-10, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 372: LOW 945HPA AT 48S 24W MOV E PROVOKES WINDS FORCE 8 AROUND ITSELF
WITH GUST BETWEEN 45S-57S AND 20W-30W UNTIL 11/0300
WARNING 371: STRONG BARIC GRADIENT MOV NE PROVOKES WINDS FORCE 8 FROM SW WITH
GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) BETWEEN 45S-60S AND 40W-60W UNTIL
11/0300
WARNING 367: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST IN NORTH AREA (35S- 40S AND 20W- 55W)
PART 2 GENERAL SYNOPSIS AT 09:00UTC
091400 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
LOW 945HPA 48S 24W MOV E EXTENDS OFNT AT 54S 20W 52S 56W 46S 25W MOV E
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-11
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 3/4 VIS GOOD
OUTER RIO DE LA PLATA: SE 3/4 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 3/4 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 3/4 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): S 4/3 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SW 4 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 4 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SW 5/4 WITH GUSTS VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/6 WITH GUSTS VIS GOOD
ISLAS MALVINAS COASTS: SW 7/6 GUST WITH 8 INTENSITY VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: NW 6/7 WITH GUSTS BACK SECTOR W 8
WITH GUSTS BY 10/1800 PROB OF RAIN VIS VERY POOR
REST OF THE AREA: SECTOR W 8 WITH GUSTS BACK SW 7/5 WITH GUSTS BY 10/2100 PROB
OF RAIN IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 8 WITH GUSTS DECR 4
BY 10/2100 PROB OF RAIN VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 6/7 WITH GUSTS BACK SW BY 10/1800 PROB OF RAIN VIS
POOR OCNL VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) W OF 55W: SW 5 VIS GOOD
REST OF THE AREA: SW 7/8 WITH GUSTS PROB OF RAIN IMPR DURING THE EARLY MORNING
VIS VERY POOR TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 8 WITH GUSTS VEER SECTOR W
7/6 BY 11/0300 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 7/6 WITH GUSTS BACK SW 7 GUST WITH 8 INTENSITY BY
11/0300 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6 WITH GUSTS BACK 7
GUST WITH 8 INTENSITY BY 10/1500 PROB OF ISOL SNOW FALL VIS MODERATE OCNL POOR
REST OF THE AREA: SW 7/8 WITH GUSTS DECR 6 BY 11/0900 PROB OF ISOL SNOW FALL
VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 8 WITH GUSTS DECR 7/6 WITH GUSTS BY
11/0300 VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 10, AUGUST 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1041/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV NE DEEPENING PROVOKES WINDS FORCE 9 FROM SW WITH GUST IN 60S-64S 70W-58W UNTIL 11/0000
1042/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-65S 80W-70W UNTIL 10/1800
1043/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-72S 50W-40W UNTIL 11/1500
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 986HPA 62S 55W MOV E DPN
LOW 992HPA 70S 75W MOV E WKN
LOW 966HPA 63S 32W MOV E WKN
RIDGE 60S 80W 64S 80W 68S 78W MOV E INTSF
091400 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 2026-08-11
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 9 WITH GUSTS VEER SECTOR W 7/5 WITH GUSTS BY 11/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 7 GUST WITH 8 INTENSITY BACK SECTOR S 6/7 WITH GUSTS BY 10/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 9 WITH GUSTS VEER SECTOR W 7/5 WITH GUSTS BY 11/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 7 GUST WITH 8 INTENSITY BACK SECTOR S 6/7 WITH GUSTS BY 10/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS VERY POOR TO MODERATE
GERLACHE STRAIT : SECTOR N 3/4 VEER NE 4/3 BY 10/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
MARGARITA BAY : NW 3/4 VEER SECTOR N 4/3 BY 11/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
EREBUS Y TERROR GULF : SECTOR S 4/5 VEER SW 5/6 BY 10/2100 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 7/8 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 10/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 6/5 WITH GUSTS VEER NW 7 WITH GUSTS BY 10/1800 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 4/3 BACK SECTOR N 3/4 BY 11/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SECTOR S 4/5 VEER SW 7/8 WITH GUSTS BY 10/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SW 7/8 WITH GUSTS BACK SECTOR S 9 WITH GUSTS BY 10/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 5/6 BACK SECTOR E 7 WITH GUSTS BY 11/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD=