1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 26, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
717/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 61S-72S 90W-80W UNTIL 27/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 985HPA 65S 49W MOV E DPN
HIGH 992HPA 71S 48W MOV E INTSF
RIDGE 60S 75W 64S 75W 72S 75W MOV E INTSF
251400 UTC 1.SEA ICE LIMIT 6529S 02000W 6349S 02618W 5935S 03218W 6025S 03757W 5956S 04316W 6023S 04814W 6013S 05247W 6201S 05654W 6340S 06033W 6412S 06336W 6532S 06559W 6642S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5740S 03412W 16X7NM 3.ICEBERGS SMALLER THAN ICEBERG1 4905S 02659W 5X1NM 4.ICEBERGS AREA A6537S 02000W 4500S 02000W 4500S 02400S 4800S 03300W 5800S 03300W B5800S 03300W 5100S 03300W 5100S 03500W 5900S 05200W 6037S 05200W C6037S 05200W 6000S 05200W 6000S 05700W 6600S 06716W 6644S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-27
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 5/7 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 26/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY BACK SW 5/6 BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 5/7 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 26/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY BACK SW 5/6 BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SW 3/4 BACK SE 3/4 BY 26/2100 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : NE 3/4 INCR NE 5/7 WITH GUSTS BY 27/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE
EREBUS Y TERROR GULF : SW 4/5 INCR SW 7 WITH GUSTS BY 26/2100 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: NW 7/8 GUST WITH 9 INTENSITY INCR NW 9 BY 27/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 VEER NW 6/7 WITH GUSTS BY 26/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO VERY POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 4/5 BACK SECTOR N 7/8 WITH GUSTS BY 26/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA N OF 64S: NW 5/6 WITH GUSTS BACK SW 5/4 BY 27/0000 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 4/3 VEER SE 3/4 BY 26/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS EVENING VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 VEER SE 4/5 BY 26/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-26, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 231: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR E
WITH GUST BETWEEN 40S-55S AND 20W-30W UNTIL 26/0900
PART 2 GENERAL SYNOPSIS AT 21:00UTC
251400 UTC 1.SEA ICE LIMIT 6529S 02000W 6349S 02618W 5935S 03218W 6025S 03757W
5956S 04316W 6023S 04814W 6013S 05247W 6201S 05654W 6340S 06033W 6412S 06336W
6532S 06559W 6642S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5740S 03412W 16X7NM
3.ICEBERGS SMALLER THAN ICEBERG1 4905S 02659W 5X1NM 4.ICEBERGS AREA A6537S
02000W 4500S 02000W 4500S 02400S 4800S 03300W 5800S 03300W B5800S 03300W 5100S
03300W 5100S 03500W 5900S 05200W 6037S 05200W C6037S 05200W 6000S 05200W 6000S
05700W 6600S 06716W 6644S 06716W
LOW 1015HPA 46S 48W MOV E EXP 47S 42W BY 26/1800 EXTENDS CFNT AT RINCON BAHIA
BLANCA COASTS 44S 50W 42S 53W MOV E
HIGH 1019HPA 50S 43W MOV NE WKN EXTENDS RIDGE AT 53S 40W 56S 39W 59S 37W
CFNT AT 59S 45W 57S 50W 55S 54W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-27
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 FOG STARTING EARLY MORNING VIS MODERATE TO POOR
OUTER RIO DE LA PLATA: VRB 3 FOG STARTING EARLY MORNING VIS MODERATE TO POOR
URUGUAY SOUTH EAST COASTS: SECTOR S 3 PROB OF MIST FOG PATCHES DRIZZLE VIS
MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): NW 3 VEER VRB 3 BY 26/1800 PROB OF MIST
FOG PATCHES VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 3 VEER VRB 3 BY 26/1500 PROB OF
MIST FOG PATCHES VIS MODERATE OCNL POOR
PENINSULA DE VALDES COASTS(41S - 45S): VRB 3 VEER SECTOR N 4 BY 26/1500 PROB
OF MIST FOG PATCHES VIS MODERATE OCNL POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 3 VEER SECTOR N 4 BY 26/0600 PROB OF
MIST FOG PATCHES PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL
POOR
SOUTH PATAGONIA COASTS(48S - 54S): NW 3 VEER VRB 3 BY 26/1200 PROB OF DRIZZLE
RAIN STARTING EARLY MORNING VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SW 4/5 WITH GUSTS PROB OF ISOL RAIN SPELLS OF
GOOD WEATHER VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR W 4 PROB OF DRIZZLE STARTING EARLY MORNING VIS
MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SW 6/5 WITH GUSTS VEER VRB 3 BY
26/1800 PROB OF SH SPELLS OF GOOD WEATHER VIS MODERATE
W OF 30 - E OF 50W: SECTOR W 3/4 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: VRB 3 PROB OF MIST FOG PATCHES VIS MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR S 8/7 WITH GUSTS VEER
SW 5 BY 26/1500 PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE
W OF 30 - N OF 45S: SECTOR S 4 VEER SECTOR W 4 PROB OF ISOL RAIN VIS MODERATE
REST OF THE AREA: SECTOR S 6 WITH GUSTS DECR VRB 3 BY 26/0900 PROB OF ISOL RAIN
STARTING EVENING VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 3/4 PROB OF MIST
DRIZZLE VIS MODERATE
REST OF THE AREA: VRB 3 VEER SECTOR W 4/5 WITH GUSTS BY 26/1500 PROB OF ISOL
RAIN VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 8/7 WITH GUSTS VEER W 6
WITH GUSTS BY 26/1500 PROB OF SNOW FALL VIS POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS PROB OF SNOW FALL VIS MODERATE TO
POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 5/6 WITH GUSTS PROB
OF SNOW FALL VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF SH RAIN AND SNOW
MIXTURE VIS MODERATE TO VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6 GUST WITH 8 INTENSITY PROB OF SH
RAIN AND SNOW MIXTURE VIS MODERATE TO POOR
-----------------------------------------------------------------
NNNN=