1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-28, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 292: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 WITH GUST
BETWEEN 50S-60S 50W-60W FROM 28/0900
WARNING 291: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 9 WITH GUST IN
SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS DRAKE AREA
(55S- 60S AND 60W- 67W) FROM 28/0300 UNTIL 28/1800
WARNING 290: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W) UNTIL 28/0600
PART 2 GENERAL SYNOPSIS AT 21:00UTC
271400 UTC 1.SEA ICE LIMIT 6002S 02000W 5716S 02618W 5749S 03217W 5758S 03757W
5836S 04317W 5911S 04814W 6130S 05247W 6200S 05655W 6326S 06033W 6411S 06337W
6527S 06559W 6613S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5249S 03150W 16X6NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4803S 02302W 4X1NM ICEBERG2 5330S 03213W
3X1NM 4.ICEBERGS AREA A60015S 02000W 4200S 02000W 5035S 03500W 5830S 03300W
B58030S 03300W 5130S 03430W 5620S 04940W 5935S 04815W C58035S 04515W 5620S
04840W 6150S 06716W 6320S 06716W
LOW 1017HPA 44S 60W MOV E DPN EXP 45S 55W BY 28/2100 EXTENDS CFNT AT 43S 58W 40S
59W 38S 60W
LOW 1025HPA 38S 37W MOV SE DPN EXP 43S 20W BY 28/1800
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-29
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 BACK SW 4 BY 28/0600 PROB OF FOG MIST NEXT SH
STARTING EARLY MORNING VIS MODERATE OCNL POOR
OUTER RIO DE LA PLATA: SECTOR N 3 BACK SW 4/5 WITH GUSTS BY 28/0600 PROB OF FOG
MIST NEXT SH STARTING EARLY MORNING VIS MODERATE OCNL POOR
URUGUAY SOUTH EAST COASTS: SECTOR N 3/4 BACK SW 6 WITH GUSTS BY 28/1800 PROB OF
ISOL RAIN STARTING EARLY MORNING VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 3/4 BACK SW 5/6 WITH GUSTS BY
28/0900 PROB OF FOG MIST NEXT ISOL RAIN STARTING EARLY MORNING VIS MODERATE OCNL
POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 4 PROB OF ISOL RAIN STARTING EARLY
MORNING VIS MODERATE OCNL GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SW 5 PROB OF RAIN SPELLS OF GOOD
WEATHER VIS MODERATE OCNL GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 5 PROB OF RAIN SPELLS OF GOOD
WEATHER VIS MODERATE OCNL GOOD
SOUTH PATAGONIA COASTS(48S - 54S): NW 7/8 WITH GUSTS BACK SECTOR W 7 WITH
GUSTS BY 28/1800 PROB OF SH STARTING EARLY MORNING VIS POOR OCNL VERY POOR
FIN DEL MUNDO COASTS(54S - 55S): NW 7/8 WITH GUSTS BACK SECTOR W 7 WITH GUSTS
BY 28/1800 PROB OF RAIN SNOW FALL STARTING EARLY MORNING VIS POOR OCNL VERY
POOR
ISLAS MALVINAS COASTS: SECTOR W 5 VEER NW 7/8 WITH GUSTS BY 28/0900 DECR NW 7/6
WITH GUSTS BY 28/1800 PROB OF RAIN STARTING EVENING VIS MODERATE TO VERY POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 5/6 WITH GUSTS PROB OF
RAIN VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 5 VEER SECTOR N 5/6 WITH GUSTS BY 28/0600 PROB OF
ISOL RAIN NEXT HVY RAIN VIS MODERATE TO POOR OCNL VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR W 5/6 WITH
GUSTS VEER SECTOR S 6/7 WITH GUSTS BY 28/1500 PROB OF HVY RAIN IMPR TOWARDS THE
END OF THE PERIOD VIS POOR OCNL VERY POOR
W OF 30 - N OF 45S: NE 5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF ISOL RAIN IMPR TOWARDS THE
END OF THE PERIOD VIS MODERATE OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 5/6 WITH GUSTS PROB
OF ISOL RAIN NEXT HVY RAIN VIS MODERATE TO POOR
REST OF THE AREA: VRB 3/4 PROB OF RAIN VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 8/9 WITH GUSTS PROB OF SH OF
SNOW VIS VERY POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6 WITH GUSTS VEER NW
6/7 WITH GUSTS PROB OF SH SPELLS OF GOOD WEATHER VIS POOR OCNL MODERATE
REST OF THE AREA: NW 7/8 WITH GUSTS PROB OF SH STARTING EARLY MORNING VIS
MODERATE TO VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): NW 7/9 WITH GUSTS BACK SECTOR W 7 WITH GUSTS
BY 28/1800 PROB OF RAIN SNOW FALL VIS POOR OCNL VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 27, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
850/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 63S-68S 50W-30W UNTIL 28/0000
851/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-66S 70W-50W FROM 27/1800 UNTIL 29/0600
852/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST BACK SECTOR W IN 60S-65S 90W-70W UNTIL 29/0600
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 965HPA 67S 72W MOV SE DPN
LOW 942HPA 73S 42W MOV SE DPN
RIDGE 60S 77W 65S 78W 68S 78W MOV E WKN
RIDGE 60S 55W 65S 56W 68S 57W MOV E WKN
261400 UTC 1.SEA ICE LIMIT 6002S 02000W 5716S 02618W 5749S 03217W 5758S 03757W 5836S 04317W 5911S 04814W 6130S 05247W 6200S 05655W 6326S 06033W 6411S 06337W 6527S 06559W 6613S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5304S 03224W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4803S 02302W 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 2026-06-28
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 6/7 GUST WITH 8 INTENSITY VEER NW 7/8 WITH GUSTS BY 28/0000 PROB OF MIST PROB OFINTERMITTENT MIST SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 6/7 WITH GUSTS BACK SECTOR W 5/7 GUST WITH 8 INTENSITY BY 28/0000 PROB OF ISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 6/7 GUST WITH 8 INTENSITY VEER NW 7/8 WITH GUSTS BY 28/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 6/7 WITH GUSTS BACK SECTOR W 5/7 GUST WITH 8 INTENSITY BY 28/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR
GERLACHE STRAIT : NE 7 WITH GUSTS BACK SECTOR N 7/5 WITH GUSTS BY 27/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR
MARGARITA BAY : SECTOR N 3/4 VEER NE 7/5 BY 27/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : NW 7/8 WITH GUSTS DECR SECTOR W 6/5 BY 27/2100 PROB OF MIST PROB OFCOASTAL BLIZZARD IMPR DURING THE NOON VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 7/8 WITH GUSTS VEER NW 9 WITH GUSTS BY 27/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR S 4/5 VEER NW 7/8 WITH GUSTS BY 27/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SE 3/4 VEER SECTOR S 4/5 BY 28/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS MODERATE TO POOR
NORTHERN WEDDELL SEA N OF 65S: NW 9 WITH GUSTS DECR SECTOR W 6/5 GUST WITH 8 INTENSITY BY 27/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: NW 7/8 WITH GUSTS BACK SECTOR W 8/7 WITH GUSTS BY 27/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EVENING VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 VEER SE 4/3 BY 27/2100 VIS GOOD=