1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-04, 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 PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN
SOUTH EAST AREA (50S- 60S AND 20W- 40W)
PART 2 GENERAL SYNOPSIS AT 09:00UTC
031400 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 6109S 053 04W
21X12NM A81 5956S 051 31W 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
HIGH 1029HPA 35S 45W MOV E WKN
LOW 1014HPA 34S 51W MOV SE NC EXP 37S 34W BY 05/1200 EXTENDS WFNT AT 34S 51W 35S
46W 33S 41W MOV SE
LOW 1005HPA 50S 54W MOV NE DPN EXP 46S 34W BY 05/1200 EXTENDS CFNT AT 50S 54W
43S 49W 39S 52W MOV NE EXP 46S 34W 44S 37W 44S 37W BY 05/1200 ASOCIATED WITH
OFNT AT 50S 54W 51S 66W 47S 61W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-5
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 3 VEER E 4/3 BY 04/2100 AFTERWARDS N 3 BY 5/0900 PROB
OF MIST DRIZZLE VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SE 3 VEER E 4/3 BY 04/2100 AFTERWARDS N 3 BY 5/0900 PROB
OF MIST DRIZZLE VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SE 3 VEER E 4/3 BY 04/2100 AFTERWARDS N 3 BY 5/0900
PROB OF MIST DRIZZLE VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): VRB 3/4 PROB OF MIST DURING THE END OF
THE PERIOD NEXT WORSENING VIS MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4/3 INCR 5 BY 5/0000 BACK
SECTOR W BY 5/0600 PROB OF DRIZZLE RAIN STARTING EVENING STARTING NIGTH IMPR VIS
MODERATE OCNL GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 3/4 VEER SECTOR W 5 BY 5/0000
PROB OF ISOL DRIZZLE RAIN VIS MODERATE OCNL GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 3 VEER SECTOR W BY 5/0900 PROB OF
ISOL DRIZZLE RAIN VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): VRB 5 VEER SECTOR S 4 BY 04/2100 PROB OF
RAIN VIS MODERATE OCNL POOR
FIN DEL MUNDO COASTS(54S - 55S): E 4 BACK N 3 BY 5/0300 PROB OF MIST DRIZZLE
VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: E 5/6 WITH GUSTS PROB OF RAIN VIS POOR OCNL VERY POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: VRB 3/4 VEER SECTOR N 5/6 WITH
GUSTS BY 5/0000 PROB OF RAIN STORMS STARTING NIGTH VIS MODERATE TO POOR
REST OF THE AREA: N 5 BACK S 4 BY 04/2100 BACK VRB 3 PROB OF RAIN STORMS
STARTING NIGTH IMPR VIS MODERATE TO GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SW 6/5 VEER SECTOR W 4 BY 04/1500
VEER NW 5/6 WITH GUSTS BY 5/0300 PROB OF STORMS STARTING NIGTH VIS POOR TO
MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): VRB 4 BACK SECTOR W INCR 5/6 WITH
GUSTS BY 5/0600 PROB OF RAIN STORMS IMPR GRADUALLY VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SW 8/6 WITH GUSTS DECR 6/5 BY 5/0600
DECR VIS VERY POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): W 5 BACK VRB 4/3 PROB OF MIST RAIN AND
SNOW MIXTURE VIS GOOD OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 4/3 PROB OF ISOL RAIN AND SNOW
MIXTURE VIS GOOD OCNL MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 04, 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 1009HPA 64S 57W MOV E WKN
HIGH 1018HPA 67S 76W MOV NE WKN
LOW 1011HPA 62S 59W MOV E WKN
HIGH 1012HPA 67S 58W MOV NE WKN
031400 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 6109S 053 04W 21X12NM A81 5956S 051 31W 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 2026-08-5
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 3/4 BACK SECTOR E 3/4 BY 04/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 4/5 VEER SECTOR W 4/3 BY 5/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 3/4 BACK SECTOR E 3/4 BY 04/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 4/5 VEER SECTOR W 4/3 BY 5/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
GERLACHE STRAIT : SECTOR S 4/3 BACK SE 3 BY 04/2100 PROB OF FOG AND MIST IN PATCHES IMPR TOWARDS NIGTH VIS VERY POOR TO MODERATE OCNL GOOD
MARGARITA BAY : SECTOR S 3/4 BACK NE 4/3 BY 5/0300 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 4/5 WITH GUSTS BACK NE 3/4 BY 5/0000 PROB OF FOG MIST WORSENING DURING THE NIGTH VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR E 4/5 WITH GUSTS BACK NE 4/3 BY 5/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR N 3/3 VEER NE 4/5 BY 5/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 4/5 WITH GUSTS VEER NE 5 BY 5/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SW 5/6 GUST WITH 8 INTENSITY BACK SECTOR S 5/4 BY 5/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 6/7 WITH GUSTS DECR SECTOR W 5/4 WITH GUSTS BY 5/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 BACK SECTOR E 5/6 WITH GUSTS BY 5/0000 PROB OF MIST VIS MODERATE TO GOOD=