1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-26, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 288: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST IN FIN DEL MUNDO COASTS DRAKE AREA (55S- 60S AND 60W- 67W) FROM 27/0900
WARNING 287: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM SECTOR
W WITH GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W) FROM 26/1800
WARNING 282: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR N
WITH GUST IN ISLAS MALVINAS COASTS SOUTH WEST AREA (50S- 60S AND 40W- 60W)
PART 2 GENERAL SYNOPSIS AT 09:00UTC
CFNT AT 48S 40W 50S 30W 53S 20W MOV E
LOW 1017HPA 36S 50W MOV E WKN
HIGH 1029HPA 48S 41W MOV E INTSF EXTENDS RIDGE AT 48S 41W 57S 31W 60S 25W MOV
E
251400 UTC 1.SEA ICE LIMIT 5920S 02000W 5707S 02618W 5831S 03217W 5804S 03757W
5852S 04316W 5921S 04814W 6157S 05247W 6221S 05654W 6232S 06033W 6415S 06336W
6551S 06611W 6605S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5304S 03224W 16X6NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4911S 02332W 4X1NM ICEBERG2 5330S 03213W
3X1NM 4.ICEBERGS AREA A5954S 02000W 4456S 02000W 50012S 03249W 5751S 03236W
B50012S 03249W 5751S 03236W 5653S 04438W 5951S 04538W C59051S 04538W 5653S
04438W 6101S 06716W 6637S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-27
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 FOG AND MIST IN PATCHES DISSIPATING VIS GOOD
OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR N 3/4 FOG AND MIST IN PATCHES DISSIPATING VIS GOOD
OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 3/4 FOG AND MIST IN PATCHES DISSIPATING VIS
GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NW 4/3 BACK SECTOR S 3 FOG AND MIST IN
PATCHES DISSIPATING VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 5 WITH GUSTS VEER W 5 WITH GUSTS
FOG AND MIST IN PATCHES DISSIPATING PROB OF RAIN TOWARDS EARLY MORNING IMPR VIS
MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/4 WITH GUSTS BACK SECTOR S 4
PROB OF ISOL DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6/4 WITH GUSTS BACK SECTOR S
4/3 PROB OF ISOL DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 6/4 GUST WITH 8 INTENSITY BACK
SECTOR S 4/3 VEER SECTOR W 5/4 PROB OF ISOL DRIZZLE RAIN TOWARDS NIGTH IMPR VIS
MODERATE OCNL POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 6 WITH GUSTS BACK SECTOR W 5/6 WITH
GUSTS INCR 8 BY 27/0900 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO
POOR
ISLAS MALVINAS COASTS: SECTOR N 8/6 WITH GUSTS BACK SECTOR W 4/5 WITH GUSTS BY
26/2100 PROB OF RAIN TOWARDS EARLY MORNING IMPR VIS POOR TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR W 5 WITH GUSTS BACK SECTOR S
5/4 WITH GUSTS BACK SECTOR E 4/3 PROB OF ISOL SH RAIN SPELLS OF GOOD WEATHER VIS
MODERATE
E OF 40W: SECTOR W 4/3 BACK SECTOR E 4/6 WITH GUSTS PROB OF ISOL SH RAIN SPELLS
OF GOOD WEATHER VIS MODERATE
REST OF THE AREA: SECTOR S 4 WITH GUSTS BACK SECTOR N 3 BACK SECTOR W 4/5 WITH
GUSTS PROB OF ISOL SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 6 WITH GUSTS BACK
SECTOR S 6/3 PROB OF ISOL SH RAIN RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER
VIS MODERATE
REST OF THE AREA: SECTOR S 5/3 WITH GUSTS BACK SECTOR N 3/4 PROB OF ISOL SH
RAIN RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 3/6 WITH GUSTS ISOL
SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE
REST OF THE AREA: SECTOR N 6/5 WITH GUSTS PROB OF ISOL SH RAIN SPELLS OF GOOD
WEATHER VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR S 5/6 WITH GUSTS BACK SECTOR W
6/8 WITH GUSTS PROB OF ISOL RAIN RAIN AND SNOW MIXTURE VIS MODERATE TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR N 6/8 WITH GUSTS PROB
OF ISOL RAIN SNOW FALL SPELLS OF GOOD WEATHER VIS POOR
REST OF THE AREA: SECTOR N 8/5 WITH GUSTS BACK SECTOR W 6 WITH GUSTS PROB OF
ISOL RAIN SNOW FALL SPELLS OF GOOD WEATHER VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SW 6/5 WITH GUSTS VEER SECTOR N 4 PROB OF
ISOL RAIN SNOW FALL SPELLS OF GOOD WEATHER VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 26, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
844/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-70S 50W-30W UNTIL 27/0600
845/2026 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 62S-67S 60W-50W UNTIL 27/0300
846/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST BACK SECTOR W IN 60S-65S 90W-75W UNTIL 27/0300
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 961HPA 64S 74W MOV SE DPN
LOW 954HPA 67S 57W MOV SE DPN
RIDGE 60S 30W 65S 32W 70S 32W MOV E WKN
HIGH 958HPA 71S 82W MOV E INTSF EXTENDS RIDGE AT 71S 82W 65S 80W 60S 22W MOV E
251400 UTC 1.SEA ICE LIMIT 5920S 02000W 5707S 02618W 5831S 03217W 5804S 03757W 5852S 04316W 5921S 04814W 6157S 05247W 6221S 05654W 6232S 06033W 6415S 06336W 6551S 06611W 6605S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5304S 03224W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4911S 02332W 4X1NM ICEBERG2 5330S 03213W 3X1NM 4.ICEBERGS AREA A5954S 02000W 4456S 02000W 50012S 03249W 5751S 03236W B50012S 03249W 5751S 03236W 5653S 04438W 5951S 04538W C59051S 04538W 5653S 04438W 6101S 06716W 6637S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-27
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 7/8 WITH GUSTS DECR SECTOR W 6/5 BY 26/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 8/7 WITH GUSTS BACK SECTOR W 7 WITH GUSTS BY 26/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 7/8 WITH GUSTS DECR SECTOR W 6/5 BY 26/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 8/7 WITH GUSTS BACK SECTOR W 7 WITH GUSTS BY 26/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
GERLACHE STRAIT : NW 6/5 BACK SECTOR W 5/4 BY 26/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
MARGARITA BAY : NW 3/4 VEER SECTOR N 4/5 BY 27/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : NW 7/9 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 27/0300 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 7/8 WITH GUSTS BACK SECTOR W 9 WITH GUSTS BY 27/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 VEER SECTOR N 6/7 BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING EVENING VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 3/4 BACK SECTOR S 3 BY 27/0500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING EVENING VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: NW 9 WITH GUSTS DECR NW 6/5 GUST WITH 8 INTENSITY BY 27/0300 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 REST OF THE AREA: NE 7/8 WITH GUSTS BACK NW 8/7 WITH GUSTS BY 26/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 4/5 VEER SECTOR E 5/6 WITH GUSTS BY 26/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE=