1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 27, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
718/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-69S 90W-80W UNTIL 27/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 990HPA 63S 46W MOV E DPN
HIGH 70S 50W MOV E INTSF EXTENDS RIDGE AT 70S 50W 63S 65W 60S 70W MOV E
261400 UTC 1.SEA ICE LIMIT 6438S 02000W 6216S 02618W 5906S 03217W 5914S 03758W 5940S 04317W 5941S 04813W 6027S 05247W 6249S 05655W 6344S 06032W 6412S 06336W 6526S 06559W 6635S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5626S 03243W 16X7NM 3.ICEBERGS SMALLER THAN ICEBERG1 4911S 02710W 5X1NM 4.ICEBERGS AREA A6500S 02000W 4500S 02000W 4800S 03500W 5930S 03500W B5930S 03500W 5100S 03500W 5500S 04500W 6020S 04500W C6020S 04500W 5700S 04500W 6000S 05500W 6205S 05500W D6205S 05500W 6000S 05500W 6400S 06716W 6645S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-28
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 4/5 BY 27/0900 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
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 4/5 BACK SECTOR S 4/3 BY 27/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 4/5 BY 27/0900 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
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 4/5 BACK SECTOR S 4/3 BY 27/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SW 3/4 BACK NE 3/4 BY 27/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
MARGARITA BAY : NE 4/5 INCR NE 5/7 WITH GUSTS BY 27/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
EREBUS Y TERROR GULF : SECTOR S 5/7 VEER NW 4/5 BY 27/1500 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: NW 8 GUST WITH 9 INTENSITY INCR NW 9 WITH GUSTS BY 27/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 5/6 VEER NW 7/8 WITH GUSTS BY 27/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE MORNING VIS MODERATE TO VERY POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 4/5 BACK NW 4/3 BY 27/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SW 5/4 BACK SECTOR S 5/4 BY 27/0900 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 4/3 VEER SW 3/4 BY 27/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 VEER SECTOR S 4/5 BY 27/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-27, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 232: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR S
WITH GUST BETWEEN 50S-60S AND 50W-60W FROM 27/0300 UNTIL 27/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1023HPA 37S 50W NC
HIGH 1020HPA 51S 67W MOV NE INTSF EXP 48S 59W BY 27/2300
CFNT AT 59S 40W 54S 42W 50S 47W MOV E
261400 UTC 1.SEA ICE LIMIT 6438S 02000W 6216S 02618W 5906S 03217W 5914S 03758W
5940S 04317W 5941S 04813W 6027S 05247W 6249S 05655W 6344S 06032W 6412S 06336W
6526S 06559W 6635S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5626S 03243W 16X7NM
3.ICEBERGS SMALLER THAN ICEBERG1 4911S 02710W 5X1NM 4.ICEBERGS AREA A6500S
02000W 4500S 02000W 4800S 03500W 5930S 03500W B5930S 03500W 5100S 03500W 5500S
04500W 6020S 04500W C6020S 04500W 5700S 04500W 6000S 05500W 6205S 05500W D6205S
05500W 6000S 05500W 6400S 06716W 6645S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-28
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 PROB OF FOG VIS VERY POOR TO MODERATE
OUTER RIO DE LA PLATA: SECTOR N 3 PROB OF FOG VIS VERY POOR TO MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 3 PROB OF FOG VIS VERY POOR TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 3 PROB OF FOG VIS POOR TO
MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 3 PROB OF MIST VIS
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 3/4 VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR E 5 PROB OF ISOL RAIN VIS
MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 4/5 BACK SECTOR E BACK N BY
27/1200 VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): SW 4/5 VEER SECTOR N BY 27/1800 VIS GOOD
ISLAS MALVINAS COASTS: SW 5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 50W: SECTOR W 5 WITH GUSTS PROB OF ISOL
RAIN VIS MODERATE
REST OF THE AREA: SECTOR W 5 WITH GUSTS BACK SECTOR S 4 VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 5/6 WITH GUSTS INCR
7 GUST WITH 8 INTENSITY BY 27/1500 PROB OF RAIN VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 5 BACK SECTOR S BY 27/2100 PROB OF RAIN VIS MODERATE
TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SW 5/6 PROB OF RAIN AND SNOW
MIXTURE VIS POOR
REST OF THE AREA: SW 5 PROB OF RAIN IMPR TOWARDS EVENING VIS MODERATE TO GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR W 6/5 BACK SECTOR S 7
WITH GUSTS BY 27/1500 PROB OF RAIN AND SNOW MIXTURE VIS POOR TO MODERATE
REST OF THE AREA: SW 5 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS POOR TO
MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6 WITH GUSTS BACK SW
7 WITH GUSTS BY 27/0900 PROB OF RAIN AND SNOW MIXTURE VIS POOR TO MODERATE
REST OF THE AREA: SECTOR S 8 DECR 6 WITH GUSTS BY 27/1500 PROB OF RAIN AND SNOW
MIXTURE IMPR TOWARDS EVENING VIS POOR TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 6/5 WITH GUSTS VIS MODERATE
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