1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-21, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 274: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 55S-60S 30W-55W FROM 21/1800
WARNING 273: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 WITH GUST IN DRAKE
AREA (55S- 60S AND 60W- 67W) UNTIL 22/0000
WARNING 272: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST BETWEEN 40S-50S AND 20W-30W UNTIL 21/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
201400 UTC 1.SEA ICE LIMIT 6043S 02000W 5803S 02618W 5846S 03217W 5805S 03758W
5816S 04316W 5910S 04813W 6102S 05247W 6142S 05655W 6328S 06033W 6408S 06337W
6512S 06559W 6554S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5337S 03143W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4911S 02332W 4X1NM ICEBERG2 6145S 05555W
2X1NM 4.ICEBERGS AREA A6125S 02000W 4406S 02000W 5200S 03800W 5825S 03800W
B5825S 03800W 5200S 03800W 6000S 05500W 6106S 05500W C6106S 05500W 6000S 05500W
6200S 06716W 6829S 06716W
LOW 966HPA 49S 57W MOV E WKN EXTENDS CFNT AT 47S 38W 42S 53W 38S 57W MOV E
HIGH 1020HPA 47S 38W MOV E INTSF EXP 42S 22W BY 22/1200
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-22
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4/5 BACK SECTOR S BY 22/0300 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR N 4/5 BACK SECTOR S BY 22/0300 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 4/5 BACK SECTOR S BY 22/0300 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/5 BACK SECTOR W BY 22/0300 VIS
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4/5 PROB OF ISOL RAIN VIS
GOOD TO MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 4/5 PROB OF ISOL RAIN VIS GOOD
TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 4/5 PROB OF ISOL RAIN VIS GOOD
OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 4/5 VEER SECTOR W 5/6 WITH GUSTS
BY 21/1800 VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4/5 VIS GOOD
ISLAS MALVINAS COASTS: SECTOR W 3/4 PROB OF ISOL RAIN VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR S 4/5 BACK SECTOR E BY
21/2100 PROB OF ISOL SH RAIN VIS GOOD OCNL POOR
REST OF THE AREA: SECTOR N 4/5 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR S 8 WITH GUSTS VEER
SECTOR S 4/5 BY 21/2100 PROB OF ISOL RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR E 4/5 BACK SECTOR N BY 21/2100 VIS GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR N 4/5 PROB OF SH RAIN VIS GOOD
OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR S 6/7 GUST WITH 8
INTENSITY VEER SECTOR W WITH GUSTS BY 22/0000 VIS POOR OCNL VERY POOR
W OF 30W - N OF 55S: SECTOR W 4/5 WITH GUSTS INCR 6/7 WITH GUSTS BY 22/0000 VIS
MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY INCR 8 BY 21/1800 VIS VERY
POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR N 4/5 WITH GUSTS BACK
SECTOR W WITH GUSTS BY 22/0900 VIS GOOD
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY INCR 8 WITH GUSTS BY
21/2100 PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): NW 8 WITH GUSTS BACK SECTOR W 6/7 WITH GUSTS
BY 21/2100 PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 21, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
817/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-64S 90W-70W UNTIL 21/1500
818/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 66S-72S 90W-70W UNTIL 22/0000
819/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-64S 70W-60W UNTIL 22/0300
820/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-66S 60W-50W UNTIL 22/0300
821/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-67S 50W-30W UNTIL 22/1500
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 950HPA 72S 83W MOV E WKN
LOW 960HPA 66S 55W MOV E DPN
LOW 958HPA 67S 46W MOV E DPN
RIDGE 60S 50W 64S 52W 67S 54W MOV E INTSF
201400 UTC 1.SEA ICE LIMIT 6043S 02000W 5803S 02618W 5846S 03217W 5805S 03758W 5816S 04316W 5910S 04813W 6102S 05247W 6142S 05655W 6328S 06033W 6408S 06337W 6512S 06559W 6554S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5337S 03143W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4911S 02332W 4X1NM ICEBERG2 6145S 05555W 2X1NM 4.ICEBERGS AREA A6125S 02000W 4406S 02000W 5200S 03800W 5825S 03800W B5825S 03800W 5200S 03800W 6000S 05500W 6106S 05500W C6106S 05500W 6000S 05500W 6200S 06716W 6829S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-22
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 8 GUST WITH 9 INTENSITY VEER SECTOR W 7/8 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 8 GUST WITH 9 INTENSITY BACK SECTOR W 7/6 WITH GUSTS BY 22/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 5/6 VEER NW 7/8 GUST WITH 9 INTENSITY BY 21/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 8 GUST WITH 9 INTENSITY BACK SECTOR W 7/6 WITH GUSTS BY 22/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
GERLACHE STRAIT : SECTOR W 7 WITH GUSTS BACK SW 5/4 BY 21/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
MARGARITA BAY : SECTOR N 5/4 BACK NW 5/4 BY 22/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
EREBUS Y TERROR GULF : NW 7/8 WITH GUSTS BACK SW 7/8 GUST WITH 9 INTENSITY BY 21/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 7/5 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 21/2100 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: SECTOR W 7/8 WITH GUSTS DECR SECTOR W 7/5 BY 21/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SE 4/5 VEER SW 5/6 BY 21/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: NW 7/8 WITH GUSTS BACK SECTOR W 9 WITH GUSTS BY 21/1800 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 REST OF THE AREA: SECTOR E 4/5 WITH GUSTS VEER SE 6/7 BY 22/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 4/5 VEER SECTOR E 4/5 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD=