1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-25, 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 ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR S
WITH GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W)
WARNING 226: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 40S-50S AND 20W-30W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
241400 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 4853S 02631W 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 972HPA 54S 20W MOV E NC EXTENDS OFNT AT 52S 20W 54S 23W 57S 22W MOV E
LOW 980HPA 59S 32W MOV NE NC EXP 50S 20W BY 26/0000 EXTENDS CFNT AT 59S 32W 55S
34W 52S 44W MOV NE
HIGH 1024HPA 35S 48W MOV E NC EXP 35S 43W BY 26/0000
HIGH 1006HPA 55S 58W MOV NE WKN EXP 47S 40W BY 26/0000
TROUGH 48S 59W 44S 62W 40S 67W MOV NE WKN
CFNT AT 60S 69W 56S 67W 54S 69W MOV E NC
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-26
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 VEER VRB BY 25/1200 PROB OF MIST FOG PATCHES
LOW PROB OF DRIZZLE VIS MODERATE OCNL POOR
OUTER RIO DE LA PLATA: SECTOR N 3 VEER VRB BY 25/1200 PROB OF MIST FOG PATCHES
LOW PROB OF DRIZZLE VIS MODERATE OCNL POOR
URUGUAY SOUTH EAST COASTS: SECTOR N 3 VEER VRB BY 25/1200 PROB OF MIST FOG
PATCHES LOW PROB OF DRIZZLE VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/3 VEER VRB 3 BY 25/1800 PROB
OF MIST FOG PATCHES LOW PROB OF DRIZZLE VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4/3 BACK SECTOR W 3 PROB OF
MIST FOG PATCHES DISSIPATING DURING THE MORNING VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 4/3 BACK SECTOR S 3 BY 25/1500
VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 3 VEER SECTOR N BY 25/1500 VIS
GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 3 VEER VRB BY 25/1200 PROB OF MIST
FOG PATCHES DISSIPATING DURING THE MORNING VIS MODERATE OCNL POOR TO GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4 WITH GUSTS VEER VRB BY 25/1200
INCR W 4 BY 25/2100 PROB OF ISOL DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS GOOD
OCNL MODERATE
ISLAS MALVINAS COASTS: VRB 3 VEER SECTOR W BY 25/1800 PROB OF MIST FOG PATCHES
PROB OFISOL DRIZZLE RAIN VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR W 4/5 WITH GUSTS BACK SW 4
BY 25/2100 PROB OF ISOL DRIZZLE VIS MODERATE
E OF 45W: SECTOR S 3 VEER VRB BY 25/2100 PROB OF ISOL DRIZZLE VIS MODERATE OCNL
GOOD
REST OF THE AREA: VRB 3 VEER NW 3/4 BY 25/1200 PROB OF SH RAIN SPELLS OF GOOD
WEATHER PROB OF FOG MIST VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 8 WITH GUSTS BACK
SW 8/7 WITH GUSTS BY 25/1500 PROB OF SH RAIN VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 7/6 GUST WITH 8 INTENSITY BACK SW 5/4 WITH GUSTS BY
25/1800 PROB OF ISOL RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 5/4 WITH GUSTS LOW
PROB OF ISOL DRIZZLE VIS MODERATE OCNL GOOD
REST OF THE AREA: SECTOR W 5/4 DECR VRB 3 BY 25/1800 PROB OF ISOL DRIZZLE RAIN
SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 8/7 WITH GUSTS DECR 7 GUST
WITH 8 INTENSITY BY 25/2100 PROB OF SH OF SNOW SNOW FALL VIS POOR OCNL
MODERATE
REST OF THE AREA: SECTOR S 8/7 WITH GUSTS VEER SW 6/5 GUST WITH 8 INTENSITY BY
25/1800 PROB OF ISOL SNOW FALL IMPR VIS POOR TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR S 6/5 WITH GUSTS VEER
SECTOR W 4 PROB OF ISOL DRIZZLE RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE
OCNL GOOD
REST OF THE AREA: SECTOR S 3 VEER SECTOR W 4/5 WITH GUSTS BY 25/1200 LOW PROB
OF ISOL SNOW FALL STARTING NOON VIS GOOD TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): NW 5 WITH GUSTS BACK SECTOR W 5/6 WITH GUSTS
BY 25/1200 PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE
OCNL POOR
-----------------------------------------------------------------
NNNN=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 25, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
712/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 64S-72S 90W-72W UNTIL 25/1500
713/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 61S-64S 90W-80W FROM 25/0600 UNTIL 25/1500
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 980HPA 64S 78W MOV E DPN
HIGH 1002HPA 60S 52W MOV E WKN EXTENDS RIDGE AT 60S 52W 64S 53W 69S 55W MOV E
LOW 970HPA 67S 88W MOV E WKN
241400 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 4853S 02631W 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-26
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 4/5 BACK NW 7 GUST WITH 8 INTENSITY BY 25/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4/3 VEER NW 5/6 BY 25/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NE 4/5 BACK NW 7 GUST WITH 8 INTENSITY BY 25/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4/3 VEER NW 5/6 BY 25/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
GERLACHE STRAIT : NE 4/5 INCR NE 6/7 WITH GUSTS BY 25/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
MARGARITA BAY : NE 3/4 INCR NE 5/7 WITH GUSTS BY 25/1500 PROB OF MIST PROB OFISOL SNOW FALL VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NW 4/5 INCR NW 6/7 WITH GUSTS BY 25/1200 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 4/5 INCR SECTOR W 5/7 GUST WITH 8 INTENSITY BY 25/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 7/8 WITH GUSTS BACK SECTOR N 6/5 BY 25/1200 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
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 7/8 WITH GUSTS VEER SECTOR E 8 WITH GUSTS BY 25/0600 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 OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SW 5/6 VEER NW 5/4 WITH GUSTS BY 25/1200 PROB OF FOG AND MIST IN PATCHES IMPR TOWARDS MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 4/5 VEER SECTOR W 5/6 BY 25/0900 PROB OF MIST IMPR TOWARDS MORNING VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 BACK NE 4/3 BY 25/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS MODERATE TO POOR=