1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 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 21:00UTC
LOW 990HPA 68S 58W MOV E DPN
RIDGE 60S 40W 63S 43W 66S 45W MOV E WKN
HIGH 1003HPA 68S 83W MOV E WKN
TROUGH 60S 80W 62S 75W 64S 72W MOV SE 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-8
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 3/4 BACK NW 3/4 BY 7/1500 PROB OF ISOL MIST WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 3/5 WITH GUSTS BACK SECTOR W 3/3 BY 7/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NE 3/4 BACK NW 3/4 BY 7/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 4/5 WITH GUSTS BACK SECTOR W 4/3 BY 7/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
GERLACHE STRAIT : SECTOR E 4/3 VEER SECTOR S 3 BY 7/1200 PROB OF FOG AND MIST IN PATCHES WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
MARGARITA BAY : NE 3/4 BACK SECTOR N 4/3 BY 7/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 3/4 VEER SECTOR W 3/4 BY 06/0900 PROB OF MIST VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR E 4/5 VEER SE 5/5 WITH GUSTS BY 7/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SE 4/5 VEER SW 4/2 BY 7/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 4/3 BACK SECTOR W 4/4 WITH GUSTS BY 7/1200 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: SECTOR W 5/6 WITH GUSTS VEER NW 5 BY 7/1200 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: SECTOR W 5/6 WITH GUSTS VEER NW 4/5 BY 7/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 4/5 WITH GUSTS VEER SECTOR E 4/3 BY 7/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-7, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 365: LOW 993HPA AT 35S 54W DEEPENING EXPECTED 40S 43W BY 07/2100 WILL
PROVOKE WINDS FORCE 8 FROM SECTOR E WITH GUST BETWEEN 40S-50S 30W-40W FROM
07/1800
WARNING 364: LOW 993HPA AT 35S 54W DEEPENING EXPECTED 40S 43W BY 07/2100 WILL
PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST BETWEEN 35S-40S AND 40W-50W FROM
07/0600
WARNING 363: LOW 993HPA AT 35S 54W DEEPENING EXPECTED 40S 43W BY 07/2100 WILL
PROVOKE WINDS FORCE 8 FROM SECTOR S WITH GUST BETWEEN 40S-45S AND 40W-55W FROM
07/0300
WARNING 362: LOW 993HPA AT 35S 54W DEEPENING EXPECTED 40S 43W BY 07/2100 WILL
PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN OUTER RIO DE LA PLATA URUGUAY SOUTH
EAST COASTS MAR DEL PLATA COASTS BETWEEN 35S-40S AND 40W-55W FROM 07/0000
PART 2 GENERAL SYNOPSIS AT 21:00UTC
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
LOW 993HPA 35S 54W DPN EXP 40S 43W BY 07/2100 EXTENDS CFNT AT 35S 54W 32S 53W
28S 57W 25S 63W MOV NE
LOW 1005HPA 47S 39W MOV E WKN EXTENDS CFNT AT 45S 29W 39S 40W 37S 49W MOV E
ASOCIATED WITH OFNT AT 46S 42W 49S 38W 47S 29W
HIGH 1015HPA 54S 36W MOV E
LOW 984HPA 54S 82W NC EXP 50S 65W BY 07/1200 EXTENDS CFNT AT 58S 79W 48S 70W 38S
82W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-8
COASTAL AREAS:
INNER RIO DE LA PLATA: SW 6 WITH GUSTS VEER SECTOR W 4 BY 7/0900 VEER NW 4/3 BY
7/2100 PROB OF RAIN IMPR TOWARDS MORNING VIS MODERATE TO GOOD OCNL POOR
OUTER RIO DE LA PLATA: SW 8/7 WITH GUSTS DECR 6 WITH GUSTS BY 7/1200 VEER SECTOR
W 4/5 BY 7/1800 PROB OF RAIN IMPR TOWARDS MORNING VIS POOR TO GOOD
URUGUAY SOUTH EAST COASTS: SW 8 WITH GUSTS DECR 7/6 WITH GUSTS BY 7/1200 VEER
SECTOR W 5/4 BY 7/1800 PROB OF RAIN IMPR DURING THE MORNING VIS POOR TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SW 8 WITH GUSTS DECR 7/6 WITH GUSTS BY
7/1500 VEER SECTOR W 5/4 BY 7/1800 PROB OF RAIN IMPR DURING THE MORNING VIS POOR
TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 5/4 VEER SECTOR W 5 BY 7/1200 VEER
NW WITH GUSTS BY 7/1800 PROB OF ISOL RAIN TOWARDS NIGTH VIS GOOD TO MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): NW 4/5 INCR 5 WITH GUSTS BY 7/1500 PROB
OF RAIN TOWARDS NIGTH VIS GOOD TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): NW 5 WITH GUSTS BACK SW 4 BY 7/1800 PROB
OF SH VIS GOOD TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/4 BACK SECTOR S 4/5 BY 7/1800
PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5/4 VEER SECTOR E 4/5 BY 7/1800 PROB
OF SH RAIN AND SNOW MIXTURE VIS MODERATE
ISLAS MALVINAS COASTS: NE 4/5 VEER SECTOR E 4/5 BY 7/2100 PROB OF SH RAIN AND
SNOW MIXTURE VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR N 5 WITH GUSTS INCR 7 WITH
GUSTS BY 7/0900 INCR 7/8 WITH GUSTS BY 7/2100 PROB OF RAIN VIS VERY POOR TO
POOR
E OF 40W: SECTOR N 5/6 WITH GUSTS INCR 7/8 WITH GUSTS BY 7/1200 INCR 8/9 WITH
GUSTS BY 7/2100 PROB OF RAIN VIS VERY POOR TO POOR
E OF 50W: SECTOR N 7/8 WITH GUSTS INCR 8/9 WITH GUSTS BY 7/1200 BACK SECTOR W
9/8 WITH GUSTS BY 7/1800 PROB OF HVY RAIN VIS VERY POOR
REST OF THE AREA: SECTOR S 8 WITH GUSTS VEER SW 8/9 WITH GUSTS BY 7/0600 VEER
SECTOR W 8/10 WITH GUSTS BY 7/1800 PROB OF HVY RAIN VIS VERY POOR TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 4/5 VEER NE 6/7
WITH GUSTS BY 7/2100 INCR PROB OF ISOL RAIN HVY RAIN TOWARDS NIGTH VIS MODERATE
TO POOR
W OF 30 - N OF 45S: NE 5 WITH GUSTS INCR 7/8 WITH GUSTS BY 7/1800 INCR 8/9 WITH
GUSTS BY 7/2200 PROB OF RAIN HVY RAIN STARTING EVENING VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR N 4 VEER SECTOR E 7/8 WITH GUSTS BY 7/1800 INCR 8/9
WITH GUSTS BY 7/2200 PROB OF ISOL RAIN HVY RAIN TOWARDS NIGTH VIS VERY POOR TO
POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SE 6/7 WITH GUSTS
INCR 8 WITH GUSTS BY 7/1200 VEER SECTOR S 8/9 WITH GUSTS BY 7/1800 PROB OF HVY
RAIN VIS VERY POOR
E OF 50 - S OF 45S: SECTOR E 4 VEER SE 7/8 WITH GUSTS BY 7/1500 INCR 8 WITH
GUSTS BY 7/2100 PROB OF RAIN HVY RAIN TOWARDS NIGTH VIS MODERATE TO VERY POOR
W OF 50 - N OF 45S: SECTOR S 7/8 WITH GUSTS VEER SW 7/5 WITH GUSTS BY 7/1800
PROB OF RAIN VIS POOR TO MODERATE
REST OF THE AREA: SECTOR W 4 BACK SECTOR S 5/4 BY 7/1200 PROB OF SH VIS
MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR E 4 INCR 5/6 WITH GUSTS
BY 7/1800 INCR PROB OF RAIN STARTING NIGTH VIS MODERATE
REST OF THE AREA: SECTOR W 5/4 VIS MODERATE TO GOOD
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: NE 4/5 VEER SECTOR E
5/7 WITH GUSTS BY 7/2100 PROB OF RAIN TOWARDS NIGTH VIS GOOD TO MODERATE
S OF 55S: SECTOR N 4/5 PROB OF ISOL RAIN VIS GOOD TO MODERATE
REST OF THE AREA: NE 4 VEER SECTOR E BY 7/2100 PROB OF SH RAIN AND SNOW MIXTURE
VIS GOOD TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 4 DECR VRB 3 BY 7/1800 PROB OF SH
OF SNOW VIS MODERATE TO GOOD
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