1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-26, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 284: STRONG BARIC GRADIENT ON MOV NE PROVOKES WINDS FORCE 8 FROM S WITH
GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W) EASTHERN OF 35
WARNING 283: STRONG BARIC GRADIENT ON MOV NE PROVOKES WINDS FORCE 8 FROM W WITH
GUST BETWEEN 45S-50S AND 20W-35W UNTIL 26/0900
WARNING 282: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR N
WITH GUST IN GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS FIN DEL MUNDO
COASTS ISLAS MALVINAS COASTS DRAKE AREA (55S- 60S AND 60W- 67W)
PART 2 GENERAL SYNOPSIS AT 21:00UTC
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
CFNT AT 48S 40W 50S 30W 53S 20W MOV E
LOW 1015HPA 37S 53W MOV E DPN
HIGH 1024HPA 46S 50W MOV E DPN EXTENDS RIDGE AT 50S 47W 56S 42W 60S 37W MOV E
STRONG BARIC GRADIENT GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS FIN DEL
MUNDO COASTS ISLAS MALVINAS COASTS DRAKE AREA (55S- 60S AND 60W- 67W) MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-27
COASTAL AREAS:
INNER RIO DE LA PLATA: SW 4 BACK NE MIST FOG PATCHES VIS GOOD OCNL POOR
OUTER RIO DE LA PLATA: SW 4 BACK NE MIST FOG PATCHES VIS GOOD OCNL POOR
URUGUAY SOUTH EAST COASTS: SW 5 DECR VEER SECTOR N 4 PROB OF ISOL RAIN IMPR PROB
OF MIST FOG PATCHES VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): S 5/3 VEER SECTOR N 3/4 PROB OF ISOL RAIN
IMPR MIST FOG PATCHES VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): NE 4 BACK N 5/6 WITH GUSTS ISOL
DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/7 WITH GUSTS DECR 6/5 WITH
GUSTS LOW PROB OF ISOL RAIN STARTING EVENING VIS MODERATE OCNL GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): N 8/6 WITH GUSTS BACK SECTOR W 5
UNSTABLE VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S) N OF 51S: N 8 WITH GUSTS BACK SECTOR W 5
WITH GUSTS LOW PROB OF ISOL RAIN VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR N 8 WITH GUSTS BACK
SECTOR W 5/6 WITH GUSTS PROB OF ISOL RAIN VIS POOR OCNL MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 8 WITH GUSTS BACK SECTOR W 5/6 WITH
GUSTS PROB OF ISOL RAIN VIS POOR OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR N 6/8 WITH GUSTS DECR 6 WITH GUSTS WORSENING WITH
PROB OF RAIN VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: W 5 BACK SE PROB OF SH VIS
MODERATE
REST OF THE AREA: NW 4 VEER VRB 4/5 PROB OF ISOL SH STORMS VIS MODERATE OCNL
POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) S OF 45 - E OF 35W: SECTOR W 8 WITH
GUSTS BACK SECTOR S 7/5 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS MODERATE
OCNL POOR
N OF 45 - E OF 35W: SW 6 WITH GUSTS BACK S 6/5 WITH GUSTS PROB OF RAIN AND SNOW
MIXTURE VIS MODERATE OCNL POOR
REST OF THE AREA: SW 6 WITH GUSTS BACK SE 5/4 PROB OF SH IMPR VIS GOOD OCNL
MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - S OF 45S: S 5/3 BACK SECTOR
N 3/5 VIS GOOD
W OF 50 - S OF 45S: N 5 INCR 6/7 WITH GUSTS PROB OF ISOL RAIN TOWARDS THE END
OF THE PERIOD VIS GOOD OCNL MODERATE
REST OF THE AREA: E 4/5 BACK NE 5 WITH GUSTS PROB OF SH VIS GOOD OCNL
MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) S OF 55 - E OF 35W: S 8/6 WITH GUSTS
VEER SECTOR W 6/8 WITH GUSTS UNSTABLE VIS MODERATE TO POOR
N OF 55 - E OF 35W: S 8/6 WITH GUSTS VEER W 5/6 WITH GUSTS PROB OF SH RAIN AND
SNOW MIXTURE VIS MODERATE OCNL POOR
S OF 55 - W OF 35W: SW 5 VEER NW 6/8 WITH GUSTS TOWARDS THE END OF THE PERIOD
WORSENING VIS GOOD TO MODERATE
REST OF THE AREA: SW 6/4 WITH GUSTS VEER NW 5/6 WITH GUSTS VIS GOOD TO
MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W): NW 5/6 WITH GUSTS INCR 8 WITH GUSTS
WORSENING WITH PROB OF ISOL RAIN VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): N 8 WITH GUSTS BACK SECTOR W 6/7 WITH GUSTS
PROB OF RAIN VIS POOR TO MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 25, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
839/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-70S 90W-70W UNTIL 25/2100
840/2026 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-67S 60W-50W UNTIL 25/1500
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 944HPA 70S 90W MOV SE DPN EXTENDS CFNT AT 70S 90W 65S 85W 62S 88W MOV E
LOW 987HPA 64S 57W MOV SE DPN
RIDGE 70S 35W 65S 39W 60S 43W MOV E DPN
241400 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 5303S 03220W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4911S 02332W 4X1NM ICEBERG2 5330S 03213W 3X1NM 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 2026-06-26
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 3/4 BACK SECTOR N 5/7 BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 5/6 VEER SECTOR N 7 GUST WITH 8 INTENSITY BY 25/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NE 3/4 BACK SECTOR N 5/7 BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 5/6 VEER SECTOR N 7 GUST WITH 8 INTENSITY BY 25/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
GERLACHE STRAIT : NE 5/6 VEER SECTOR E 7/8 WITH GUSTS BY 26/0000 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
MARGARITA BAY : SECTOR N 7 GUST WITH 8 INTENSITY VEER NE 8 WITH GUSTS BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 4/5 VEER NW 7/8 BY 26/0000 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR N 7/8 WITH GUSTS BACK SW 7/8 WITH GUSTS BY 25/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE OCNL VERY POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR N 7/8 WITH GUSTS BACK SECTOR W 8/7 WITH GUSTS BY 25/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 7/8 WITH GUSTS BACK SECTOR N 8 WITH GUSTS BY 25/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: SECTOR N 5/7 WITH GUSTS BACK NW 7/5 WITH GUSTS BY 25/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR N 7/8 WITH GUSTS BACK NW 6/5 BY 25/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR DURING THE NIGTH VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/3 BACK SECTOR E 3/4 BY 26/0000 VIS GOOD=