1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-20, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 272: LOW 999HPA AT 40S 46W MOV SE DEEPENING EXPECTED 47S 26W BY 21/0000
WILL PROVOKE WINDS FORCE 9 FROM SECTOR S WITH GUST BETWEEN 50S-55S 20W-40W FROM
20/1200
WARNING 270: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 9 FROM SECTOR N
WITH GUST BETWEEN 35S-40S AND 20W-45W
WARNING 271: LOW 999HPA AT 40S 46W MOV SE DEEPENING EXPECTED 47S 26W BY 21/0000
WILL PROVOKE WINDS FORCE 10 FROM SECTOR W WITH GUST IN CENTRAL EAST AREA (40S-
50S AND 20W- 40W) FROM 20/1200
WARNING 269: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 10 FROM SECTOR N
WITH GUST IN CENTRAL EAST AREA (40S- 50S AND 20W- 40W)
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1029HPA 37S 26W MOV E NC
LOW 984HPA 53S 31W MOV E NC EXTENDS CFNT AT 53S 29W 50S 29W 47S 36W MOV NE
ASOCIATED WITH OFNT AT 53S 29W 55S 36W 52S 43W
LOW 999HPA 40S 46W MOV SE DPN EXP 47S 26W BY 21/0000 EXTENDS CFNT AT 40S 45W 37S
45W 35S 45W MOV E ASOCIATED WITH WFNT AT 40S 45W 43S 43W 45S 40W
RIDGE 39S 62W 46S 60W 52S 60W 59S 58W MOV E NC
191400 UTC 1.SEA ICE LIMIT 6043S 02000W 5803S 02618W 5846S 03217W 5805S 03758W
5816S 04316W 5910S 04813W 6102S 05247W 6142S 05655W 6328S 06033W 6408S 06337W
6512S 06559W 6554S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5340S 03142W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4919S 02327W 4X1NM ICEBERG2 6145S 05555W
2X1NM 4.ICEBERGS AREA A6102S 02000W 4500S 02000W 4300S 03400W 5900S 03500W
B5900S 03500W 5400S 03700W 6000S 05500W 6212S 05500W C6100S 05500W 6100S 05900W
6500S 06716W 6723S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-21
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR W 3 VEER SECTOR N 4 BY 20/2100 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR W 3 VEER SECTOR N 4 BY 20/2100 VIS GOOD
URUGUAY SOUTH EAST COASTS: SW 5 WITH GUSTS VEER VRB 4/3 BY 20/1500 AFTERWARDS
SECTOR N 3/4 BY 20/2100 LOW PROB OF ISOL DRIZZLE VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NW 3/4 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): W 4/5 WITH GUSTS LOW PROB OF ISOL
RAIN STARTING EVENING VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 4/5 WITH GUSTS BACK SECTOR W 5
WITH GUSTS BY 20/0600 PROB OF SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL
GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6/5 WITH GUSTS VEER VRB 4 BY
20/2100 PROB OF ISOL RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO
GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 6 GUST WITH 8 INTENSITY DECR 5/4
BY 20/1200 AFTERWARDS VRB 4 BY 20/1800 PROB OF DRIZZLE RAIN IMPR STARTING
EVENING VIS POOR TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 6 GUST WITH 8 INTENSITY VEER VRB 5/4
BY 20/1800 AFTERWARDS SECTOR S 4 BY 20/2100 PROB OF SH RAIN IMPR TOWARDS THE END
OF THE PERIOD VIS POOR TO MODERATE
ISLAS MALVINAS COASTS: SECTOR N 5/6 GUST WITH 8 INTENSITY DECR 5 BY 20/2100
WORSENING WITH PROB OF SH RAIN STARTING NOON VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 5/7 GUST WITH 8 INTENSITY
INCR 8/9 WITH GUSTS BY 20/0900 WORSENING WITH PROB OF RAIN HVY SH VIS MODERATE
TO VERY POOR
E OF 45W: SECTOR N 9 WITH GUSTS BACK SW 6 GUST WITH 8 INTENSITY BY 20/1200 DECR
5/4 BY 20/1800 PROB OF HVY RAIN STORMS NXT SH RAIN VIS VERY POOR TO MODERATE
REST OF THE AREA: SW 6/5 WITH GUSTS VEER SECTOR W 4/3 BY 20/1200 PROB OF
DRIZZLE RAIN IMPR STARTING EVENING VIS MODERATE TO GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR N 7/10 WITH
GUSTS BACK SECTOR W 9 WITH GUSTS BY 20/1500 INCR 10 BY 20/2100 PROB OF HVY RAIN
NXT SH VIS VERY POOR
W OF 30 - N OF 45S: SECTOR N 10 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY
20/0900 PROB OF HVY RAIN NXT RAIN AND SNOW MIXTURE VIS VERY POOR
E OF 30 - S OF 45S: SECTOR N 9/10 WITH GUSTS BACK SECTOR W 10 WITH GUSTS BY
20/1800 BACK SECTOR S 10 WITH GUSTS BY 20/2100 PROB OF HVY RAIN VIS VERY POOR
REST OF THE AREA: VRB 7 GUST WITH 8 INTENSITY BACK SECTOR W 9 WITH GUSTS BY
20/1200 AFTERWARDS SECTOR S 8/7 WITH GUSTS BY 20/1800 PROB OF HVY RAIN NXT SNOW
FALL VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SW 6 GUST WITH 8 INTENSITY
BACK SECTOR S 5/4 BY 20/1500 AFTERWARDS VRB 3 BY 20/1800 PROB OF RAIN AND SNOW
MIXTURE IMPR STARTING EVENING VIS POOR TO GOOD
REST OF THE AREA: VRB 4 VEER SECTOR N 5 BY 20/1200 WORSENING WITH PROB OF SH
RAIN STARTING NOON VIS GOOD TO MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR S 6/7 GUST WITH 8
INTENSITY INCR 8/9 GUST WITH 8 INTENSITY BY 20/1200 PROB OF SNOW FALL IMPR
TOWARDS THE END OF THE PERIOD VIS POOR OCNL MODERATE
REST OF THE AREA: SECTOR S 6/5 GUST WITH 8 INTENSITY VEER SECTOR W 6 WITH GUSTS
BY 20/2100 VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: SECTOR S 6/5 WITH
GUSTS VEER VRB 4/3 BY 20/1500 PROB OF ISOL SNOW FALL IMPR STARTING EARLY MORNING
VIS MODERATE OCNL POOR TO GOOD
S OF 55S: SECTOR W 3/4 VEER NW 5/6 GUST WITH 8 INTENSITY BY 20/1200 WORSENING
WITH PROB OF DRIZZLE RAIN TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
REST OF THE AREA: VRB 3 VEER SECTOR N 3 BY 20/1200 WORSENING WITH PROB OF
DRIZZLE RAIN STARTING EVENING VIS GOOD TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 5 WITH GUSTS BACK SECTOR W 5/4 BY
20/1800 PROB OF DRIZZLE RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 20, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
809/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST BACK SECTOR W IN 60S-67S 90W-80W FROM 20/0300 UNTIL 21/1200
810/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 63S-66S 58W-50W FROM 20/0900 UNTIL 21/2300
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 981HPA 64S 75W MOV E DPN
LOW 970HPA 68S 85W MOV E DPN
RIDGE 60S 49W 65S 48W 70S 48W MOV E INTSF
191400 UTC 1.SEA ICE LIMIT 6043S 02000W 5803S 02618W 5846S 03217W 5805S 03758W 5816S 04316W 5910S 04813W 6102S 05247W 6142S 05655W 6328S 06033W 6408S 06337W 6512S 06559W 6554S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5340S 03142W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4919S 02327W 4X1NM ICEBERG2 6145S 05555W 2X1NM 4.ICEBERGS AREA A6102S 02000W 4500S 02000W 4300S 03400W 5900S 03500W B5900S 03500W 5400S 03700W 6000S 05500W 6212S 05500W C6100S 05500W 6100S 05900W 6500S 06716W 6723S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-21
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR N 5/6 BACK NW 6 BY 20/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4/5 VEER NW 4/5 BY 20/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR N 5/6 BACK NW 6 BY 20/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4/5 WITH GUSTS VEER NW 6/7 GUST WITH 8 INTENSITY BY 20/0900 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
GERLACHE STRAIT : SECTOR E 5/7 GUST WITH 8 INTENSITY BACK NE 5/4 WITH GUSTS BY 20/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : NE 5/7 WITH GUSTS BACK SECTOR N 5/7 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
EREBUS Y TERROR GULF : NE 3/4 BACK NW 6/7 GUST WITH 8 INTENSITY BY 20/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 5/7 GUST WITH 8 INTENSITY VEER NW 8 WITH GUSTS BY 20/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 8 BY 20/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 4/5 BACK NE 5/6 BY 20/0900 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: SW 3/4 VEER NW 5/6 BY 20/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SW 4/5 VEER SECTOR W 3/4 BY 20/0900 PROB OF MIST VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 4/3 BACK SE 4/3 BY 20/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD=