1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-07, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 365: LOW 975HPA AT 37S 49W MOV SE DEEPENING EXPECTED 47S 38W BY 08/1200
PROVOKES WINDS FORCE 9 AROUND ITSELF WITH GUST BETWEEN 35S-55S AND 20W-55W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 975HPA 37S 49W MOV SE DPN EXP 47S 38W BY 08/1200 EXTENDS CFNT AT 37S 45W 35S
43W 32S 44W MOV E ASOCIATED WITH OFNT AT 37S 45W 42S 49W 35S 50W
RIDGE 50S 23W 54S 34W 57S 52W MOV SE
061400 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 6112S 053 31W
21X12NM A81 5932S 050 52W 28X25NM A76C 52 52S 03108W 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 2026-08-8
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 4/5 WITH GUSTS VEER SECTOR N WITH GUSTS BY
8/0300 VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR S 4/5 WITH GUSTS VEER SECTOR N WITH GUSTS BY
8/0300 VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR S 4/5 WITH GUSTS VEER SECTOR N WITH GUSTS BY
8/0300 VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 6/5 WITH GUSTS VEER SECTOR N
WITH GUSTS BY 8/0300 VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5/6 WITH GUSTS PROB OF SH
STARTING NIGTH VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5/6 WITH GUSTS RAIN AND SNOW
MIXTURE STARTING NIGTH VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 5/6 WITH GUSTS PROB OF RAIN AND
SNOW MIXTURE VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): VRB 4 VEER SECTOR S 5 WITH GUSTS BY 8/0300
RAIN AND SNOW MIXTURE VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 4/5 WITH GUSTS VEER SECTOR S BY
8/0300 RAIN AND SNOW MIXTURE VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR N 4/5 WITH GUSTS VEER SECTOR S WITH GUSTS BY
8/0300 RAIN AND SNOW MIXTURE VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) W OF 40W: SECTOR W 9 WITH GUSTS DECR 6 WITH
GUSTS BY 8/0600 SH RAIN VIS VERY POOR
W OF 30 - E OF 40W: SECTOR N 6 WITH GUSTS INCR 9 WITH GUSTS BY 07/2100 BACK
SECTOR W WITH GUSTS BY 8/0000 RAIN SPELLS OF GOOD WEATHER VIS VERY POOR
REST OF THE AREA: SECTOR N 5/7 WITH GUSTS RAIN SPELLS OF GOOD WEATHER VIS
POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR E 5/6 WITH GUSTS INCR 9 WITH
GUSTS BY 07/2100 BACK SECTOR N BY 8/0300 RAIN VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) W OF 50W: VRB 4/5 WITH GUSTS PROB OF
SH STARTING NIGTH VIS MODERATE
REST OF THE AREA: SECTOR S 8 WITH GUSTS VEER SECTOR W 9 WITH GUSTS BY 8/0000
HVY RAIN VIS VERY POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR E 4/5 WITH GUSTS INCR 9
WITH GUSTS BY 8/0300 RAIN STARTING NIGTH VIS MODERATE TO VERY POOR
REST OF THE AREA: SECTOR W 4 WITH GUSTS VEER SECTOR N WITH GUSTS BY 8/0000 RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR N 5/7 WITH GUSTS VEER SECTOR S
WITH GUSTS BY 8/0300 LOW PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): VRB 3 BACK SECTOR S 4 WITH GUSTS BY 8/0300
LOW PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 07, 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 989HPA 67S 56W MOV E WKN
RIDGE 60S 39W 63S 39W 66S 40W MOV E WKN
HIGH 999HPA 60S 62W MOV NE WKN
RIDGE 64S 90W 66S 82W 65S 70W MOV E INTSF
LOW 996HPA 62S 77W MOV E DPN
061400 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 6112S 053 31W 21X12NM A81 5932S 050 52W 28X25NM A76C 52 52S 03108W 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 2026-08-8
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 3/4 BACK SW 4/5 BY 8/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4/5 WITH GUSTS BACK SW 5/6 BY 8/0300 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 OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: NW 3/4 BACK SW 4/5 BY 8/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 3/5 WITH GUSTS BACK SW 5/6 BY 8/0300 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 OCNL GOOD
GERLACHE STRAIT : SECTOR S 4/3 BACK SE 3 BY 8/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL VERY POOR
MARGARITA BAY : NE 3/4 BACK SECTOR N 4/3 BY 8/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 3/4 INCR SW 5/6 WITH GUSTS BY 8/0000 PROB OF MIST VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SE 4/6 WITH GUSTS VEER SECTOR S 7 WITH GUSTS BY 07/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 BACK SW 4/6 BY 8/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NW 4/5 BACK SECTOR W 4/5 WITH GUSTS BY 8/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: NW 5/6 WITH GUSTS BACK SECTOR W 5 BY 8/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NW 3/4 VEER SECTOR N 3 BY 8/0000 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 5/6 WITH GUSTS VEER SECTOR E 4/3 BY 8/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR=