1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-21, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 335: LOW 978HPA AT 47S 23W MOV E NOT CHANGE PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 35S-45S AND 20W-30W UNTIL 21/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
201400 UTC 1.SEA ICE LIMIT 5753S 02000W 5712S 02618W 5848S 03217W 5925S 03757W
5954S 04317W 6044S 04814W 6151S 05247W 6234S 05655W 6342S 06032W 6413S 06337W
6532S 06559W 6616S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6131S 05131W 21X12NM
A81 6104S 05319W 28X25NM A76C 5233S 03133W 16X6NM D33C 6312S 05307W 9X4NM A83
6235S 05041W 12X7NM D35 6156S 04442W 28X6NM 3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 6205S 05221W 6X3NM ICEBERG2 6310S 05237W 5X2NM ICEBERG3 6243S 05318W
4X3NM ICEBERG4 6223S 05243W 2X1NM ICEBERG5 5957S 03541W 4X2NM 4.ICEBERGS AREA
A6016S 02000W 4300S 02000W 5300S 04100W 6010S 04100W B6010S 04100W 5300S 04100W
6000S 05500W 6220S 05500W C6220S 05500W 6000S 05500W 6500S 06716W 6640S 06716W
LOW 978HPA 47S 23W MOV E NC EXTENDS CFNT AT 47S 23W 41S 27W 36S 41W MOV E
LOW 980HPA 54S 20W MOV E NC EXTENDS CFNT AT 54S 21W 52S 23W 51S 27W MOV E
CFNT AT 60S 20W 56S 29W 54S 44W MOV NE NC
LOW 998HPA 53S 52W MOV E WKN EXTENDS CFNT AT 52S 50W 48S 56W 45S 64W
HIGH 1017HPA 42S 58W NOT MOV INTSF
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-22
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 4 WITH GUSTS PROB OF SH RAIN NXT DRIZZLE RAIN SPELLS
OF GOOD WEATHER VIS MODERATE OCNL POOR
OUTER RIO DE LA PLATA: SE 4 WITH GUSTS PROB OF SH RAIN NXT DRIZZLE RAIN SPELLS
OF GOOD WEATHER VIS MODERATE OCNL POOR
URUGUAY SOUTH EAST COASTS: SE 4 WITH GUSTS PROB OF SH RAIN NXT DRIZZLE RAIN
SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): SE 5/4 WITH GUSTS PROB OF SH RAIN NXT
DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4/3 PROB OF RAIN NXT DRIZZLE
VIS POOR TO MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 4/3 VEER VRB 3 BY 21/1800 PROB
OF DRIZZLE RAIN NXT FOG AND MIST IN PATCHES VIS MODERATE OCNL POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SW 4 WITH GUSTS VEER W 4/3 BY 21/2100
PROB OF ISOL SNOW FALL SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SW 5 WITH GUSTS PROB OF ISOL SNOW FALL VIS
MODERATE TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SW 5 WITH GUSTS PROB OF ISOL SNOW FALL VIS
MODERATE TO POOR
ISLAS MALVINAS COASTS: SW 5 WITH GUSTS PROB OF ISOL SNOW FALL VIS MODERATE OCNL
POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: NW 6 GUST WITH 8 INTENSITY
WORSENING WITH PROB OF RAIN STORMS VIS MODERATE TO POOR
E OF 45W: E 5 VEER SE 5 WITH GUSTS BY 21/0900 PROB OF HVY RAIN STORMS VIS POOR
OCNL VERY POOR
REST OF THE AREA: SE 6/5 WITH GUSTS PROB OF SH RAIN NXT DRIZZLE RAIN VIS POOR
TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45 - E OF 30W: SECTOR W 8/7 WITH
GUSTS BACK SW 5/4 BY 21/0900 AFTERWARDS VRB 3 BY 21/1500 PROB OF SH RAIN SPELLS
OF GOOD WEATHER VIS MODERATE OCNL POOR
E OF 30 - S OF 45S: SECTOR W 8/7 WITH GUSTS DECR 6/5 WITH GUSTS BY 21/1200 PROB
OF SH RAIN SPELLS OF GOOD WEATHER VIS POOR TO MODERATE
W OF 30 - N OF 45S: SW 4/3 VEER VRB 3 BY 21/0900 PROB OF ISOL DRIZZLE RAIN
SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
REST OF THE AREA: SECTOR W 5 WITH GUSTS PROB OF DRIZZLE NXT RAIN AND SNOW
MIXTURE VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR S 3 VEER SW 4
WORSENING WITH PROB OF DRIZZLE TOWARDS NIGTH VIS GOOD TO MODERATE
REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS
MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 6/7 GUST WITH 8
INTENSITY PROB OF ISOL SNOW FALL SPELLS OF GOOD WEATHER VIS POOR OCNL MODERATE
REST OF THE AREA: SECTOR S 5 VEER SECTOR W 6/7 GUST WITH 8 INTENSITY BY 21/1500
PROB OF SNOW FALL VIS POOR OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: W 5 INCR 6 GUST WITH
8 INTENSITY BY 21/1500 PROB OF ISOL SNOW FALL VIS MODERATE OCNL POOR
REST OF THE AREA: SW 5/6 GUST WITH 8 INTENSITY PROB OF SNOW FALL VIS POOR OCNL
MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SW 6/7 GUST WITH 8 INTENSITY PROB OF SNOW
FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 20, JULY 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 64S 54W MOV E DPN
RIDGE 60S 54W 63S 48W 67S 42W MOV E WKN
RIDGE 65S 90W 62S 80W 60S 75W MOV NE INTSF
191400 UTC 1.SEA ICE LIMIT 5753S 02000W 5712S 02618W 5848S 03217W 5925S 03757W 5954S 04317W 6044S 04814W 6151S 05247W 6234S 05655W 6342S 06032W 6413S 06337W 6532S 06559W 6616S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6131S 05131W 21X12NM A81 6104S 05319W 28X25NM A76C 5219S 03139W 16X6NM D33C 6312S 05307W 9X4NM A83 6235S 05041W 12X7NM D35 6156S 04442W 28X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6205S 05221W 6X3NM ICEBERG2 6310S 05237W 5X2NM ICEBERG3 6243S 05318W 4X3NM ICEBERG4 6223S 05243W 2X1NM ICEBERG5 5957S 03541W 4X2NM 4.ICEBERGS AREA A6016S 02000W 4300S 02000W 5300S 04100W 6010S 04100W B6010S 04100W 5300S 04100W 6000S 05500W 6220S 05500W C6220S 05500W 6000S 05500W 6500S 06716W 6640S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-21
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 INCR SW 7 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 5/7 WITH GUSTS VEER NW 7 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 INCR SW 7 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5/7 WITH GUSTS VEER NW 7 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SECTOR E 4/3 VEER SE 3/4 BY 20/1800 PROB OF FOG AND MIST IN PATCHES IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
MARGARITA BAY : NE 3/4 VEER SECTOR E 4/3 BY 20/1800 VIS GOOD
EREBUS Y TERROR GULF : SW 5/7 WITH GUSTS VEER NW 5/4 BY 20/2100 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS NIGTH VIS MODERATE TO VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 4/5 WITH GUSTS INCR SW 7 BY 20/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5/7 WITH GUSTS VEER SECTOR W 7 GUST WITH 8 INTENSITY BY 20/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 6/7 WITH GUSTS VEER SECTOR W 7/8 WITH GUSTS BY 20/2100 PROB OF FOG AND MIST IN PATCHES IMPR TOWARDS NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 65S: SECTOR S 4/3 VEER NW 5/6 WITH GUSTS BY 21/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY VEER NW 7 GUST WITH 8 INTENSITY BY 21/0300 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 VEER NE 4/3 BY 20/1800 VIS GOOD=