1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 10, AUGUST 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1038/2026 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-58W UNTIL 11/0000
1039/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-68S 90W-70W UNTIL 10/1800
1040/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA MOV NE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN 66S-72S 50W-40W FROM 10/0600 UNTIL 11/1500
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 983HPA 63S 53W MOV E DPN
LOW 985HPA 70S 75W MOV E WKN
RIDGE 60S 58W 65S 53W 68S 52W MOV E INTSF
RIDGE 60S 45W 63S 43W 65S 41W MOV E INTSF
LOW 974HPA 71S 42W MOV E DPN
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-11
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 8 GUST WITH 9 INTENSITY BACK SECTOR W 9 WITH GUSTS BY 10/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 7/8 WITH GUSTS VEER SECTOR W 8 WITH GUSTS BY 10/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 8 GUST WITH 9 INTENSITY BACK SECTOR W 9 WITH GUSTS BY 10/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 7/8 WITH GUSTS VEER SECTOR W 8 WITH GUSTS BY 10/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
GERLACHE STRAIT : SECTOR E 3/4 BACK NE 4/3 BY 10/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MARGARITA BAY : SECTOR N 3/4 BACK NW 4/2 BY 10/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
EREBUS Y TERROR GULF : SECTOR S 4/5 VEER SW 5/5 BY 10/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 7/8 WITH GUSTS BACK SECTOR W 6/5 WITH GUSTS BY 10/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 5/5 GUST WITH 8 INTENSITY BACK SECTOR W 8 WITH GUSTS BY 10/0600 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER TOWARDS MORNING VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 4/5 BACK NW 5/4 BY 10/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SECTOR W 3/4 VEER NW 5/6 BY 10/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 4/5 WITH GUSTS INCR SW 7/8 WITH GUSTS BY 10/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA REST OF THE AREA: SE 4 BACK SECTOR E 5/6 BY 10/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-10, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 372: LOW 957HPA AT 45S 32W MOV SE PROVOKES WINDS FORCE 8 AROUND ITSELF
WITH GUST IN CENTRAL EAST AREA (40S- 50S AND 20W- 40W)
WARNING 371: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN DRAKE AREA (55S- 60S AND 60W- 67W)
WARNING 370: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST IN CENTRAL WEST AREA (40S- 50S AND 40W- 60W)
WARNING 367: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST IN NORTH AREA (35S- 40S AND 20W- 55W)
WARNING 366: STRONG BARIC GRADIENT MOV SW PROVOKES WINDS FORCE 8 FROM SECTOR S
WITH GUST IN ISLAS MALVINAS COASTS BETWEEN 50S-60S AND 50W-60W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 957HPA 45S 32W MOV SE DPN EXTENDS CFNT AT 45S 29W 39S 24W 37S 25W
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-11
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3/4 BACK SECTOR E 3 BY 10/2100 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR S 3/4 BACK SECTOR E 3 BY 10/2100 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 6/5 WITH GUSTS DECR 4 BY 10/1500 VIS
MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 6 WITH GUSTS DECR 4 BY 10/1500
PROB OF SH IMPR STARTING EVENING VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 6/5 WITH GUSTS DECR 4 BY
10/1500 LOW PROB OF SH IMPR STARTING EVENING VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 5/4 VEER SECTOR W 4 BY 10/2100
LOW PROB OF SH IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SW 5/4 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SW 5 WITH GUSTS LOW PROB OF ISOL RAIN VIS
GOOD
FIN DEL MUNDO COASTS(54S - 55S): SW 7 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE
VIS MODERATE
ISLAS MALVINAS COASTS: SW 8 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 45W: SECTOR W 8 WITH GUSTS PROB OF RAIN
VIS VERY POOR
REST OF THE AREA: SECTOR W 8 BACK SECTOR S 7/6 WITH GUSTS BY 10/1500 PROB OF
RAIN VIS VERY POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 9 WITH GUSTS BACK
SECTOR W 8 WITH GUSTS BY 10/1200 PROB OF RAIN VIS VERY POOR
REST OF THE AREA: SECTOR W 8 DECR 7/6 WITH GUSTS BY 10/1200 PROB OF RAIN AND
SNOW MIXTURE VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR S 8 WITH GUSTS DECR 7 WITH
GUSTS BY 10/1500 PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR S 7 WITH GUSTS VEER SECTOR W 6
WITH GUSTS BY 10/1800 VIS POOR OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50W: SECTOR S 8 WITH GUSTS PROB OF
RAIN AND SNOW MIXTURE VIS POOR
REST OF THE AREA: SECTOR S 7/6 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS
POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8 WITH GUSTS PROB OF RAIN AND SNOW
MIXTURE VIS POOR
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