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=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-27, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 290: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W
BETWEEN 55S-60S 20W-40W
WARNING 289: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 WITH GUST
BETWEEN 50S-60S 40W-50W UNTIL 27/1800
WARNING 288: STRONG BARIC GRADIENT ON 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
PART 2 GENERAL SYNOPSIS AT 21:00UTC
CFNT AT 59S 51W 58S 53W 51S 60W MOV E
LOW 987HPA 58S 65W MOV E WKN EXTENDS CFNT AT 57S 65W 53S 66W 51S 69W MOV E
LOW 1008HPA 47S 62W MOV E WKN EXTENDS CFNT AT 47S 62W 42S 62W
HIGH 1032HPA 47S 37W MOV E INTSF
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-28
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4/3 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR N 4 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 4 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/3 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/4 BACK SECTOR E 4 BY
27/1200 LOW PROB OF RAIN TOWARDS NIGTH VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/4 BACK SECTOR S 4 BY 27/1800
PROB OF RAIN STARTING EVENING VIS GOOD TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 4/5 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S) N OF 50S: SECTOR N 4/5 VIS GOOD.
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR W 6/7 GUST WITH 8
INTENSITY VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 8 WITH GUSTS PROB OF RAIN AND SNOW
MIXTURE VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS LOW PROB OF RAIN AND SNOW MIXTURE
VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR E 5 BACK SECTOR N BY 27/1500
PROB OF RAIN VIS POOR
REST OF THE AREA: SECTOR N 4 BACK SECTOR W 5 BY 27/0900 LOW PROB OF RAIN VIS
MODERATE TO GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45 - E OF 30W: SECTOR S 4 BACK
SECTOR E 3 BY 27/1500 LOW PROB OF RAIN AND SNOW MIXTURE VIS GOOD
N OF 45 - E OF 30W: SECTOR S 4 VEER SECTOR W BY 27/1200 VIS GOOD
REST OF THE AREA: SECTOR N 5 PROB OF RAIN VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 6/5 PROB OF RAIN
VIS POOR
REST OF THE AREA: SECTOR N 4 BACK SECTOR S BY 27/1800 PROB OF RAIN DURING THE
EVENING VIS GOOD TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: NW 7 GUST WITH 8 INTENSITY VIS
MODERATE
REST OF THE AREA: SECTOR W 8 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS
POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: NW 8 WITH GUSTS PROB OF RAIN
AND SNOW MIXTURE VIS POOR OCNL VERY POOR
REST OF THE AREA: NW 7/6 WITH GUSTS BACK SECTOR W 7 WITH GUSTS BY 27/1200 PROB
OF RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8 WITH GUSTS PROB OF RAIN AND SNOW
MIXTURE VIS POOR
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