1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 18, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
804/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST IN 63S-68S 90W-80W FROM 18/2100 UNTIL 19/1200
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 988HPA 62S 59W MOV E DPN
HIGH 998HPA 71S 79W MOV E INTSF EXTENDS RIDGE AT 71S 79W 65S 77W 60S 79W MOV E
HIGH 999HPA 64S 48W MOV E WKN
171400 UTC 1.SEA ICE LIMIT 6015S 02000W 5826S 02618W 5906S 03217W 5918S 03757W 5959S 04317W 6000S 04813W 6154S 05248W 6239S 05654W 6225S 06033W 6405S 06337W 6531S 06559W 6611S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5344S 03145W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4923S 02358W 4X1NM ICEBERG2 6145S 05555W 2X1NM ICEBERG3 6043S 05211W 2X1NM 4.ICEBERGS AREA A6102S 02000W 4400S 02000W 4300S 03400W 5900S 03500W B5900S 03500W 5400S 03800W 6000S 05500W 6212S 05500W C6100S 05500W 6100S 05900W 6500S 06716W 6723S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-19
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 VEER SECTOR W 4/3 BY 19/0300 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4/5 BACK SW 4/5 WITH GUSTS BY 18/1800 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
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 VEER SECTOR W 4/3 BY 19/0300 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5/7 BACK SE 4/5 WITH GUSTS BY 18/1800 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
GERLACHE STRAIT : SECTOR E 3/4 VEER SE 4/3 BY 18/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS MODERATE TO POOR
MARGARITA BAY : NE 3/4 VEER SECTOR E 3 BY 18/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NE 5/4 VEER SW 4 BY 19/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR N 5/6 BACK NW 7 WITH GUSTS BY 18/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 4/5 BACK SECTOR N 7/8 BY 18/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 4/5 VEER SECTOR E 6/7 WITH GUSTS BY 19/0000 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 N OF 65S: SW 4/3 BACK NE 4/5 BY 19/0300 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: SW 4/5 VEER SECTOR W 4 BY 19/0000 PROB OF MIST VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 VEER SE 4/3 BY 18/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-18, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 268: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR N
WITH GUST BETWEEN 40S-50S AND 50W-60W FROM 18/0600
WARNING 265: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR N WITH
GUST IN PENINSULA DE VALDES COASTS GOLFO DE SAN JORGE COASTS UNTIL 18/1200
WARNING 264: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST BETWEEN 34S-45S AND 30W-40W UNTIL 18/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1026HPA 36S 54W MOV E INTSF EXP 36S 39W BY 18/2100
LOW 997HPA 52S 69W MOV NE DPN EXP 51S 54W BY 18/2100 EXTENDS CFNT AT 52S 69W 49S
68W MOV NE
LOW 1002HPA 43S 38W MOV NE WKN EXTENDS OFNT AT
LOW 987HPA 46S 23W MOV SE EXTENDS CFNT AT 46S 23W 39S 29W 32S 38W MOV E
171400 UTC 1.SEA ICE LIMIT 6015S 02000W 5826S 02618W 5906S 03217W 5918S 03757W
5959S 04317W 6000S 04813W 6154S 05248W 6239S 05654W 6225S 06033W 6405S 06337W
6531S 06559W 6611S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5344S 03145W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4923S 02358W 4X1NM ICEBERG2 6145S 05555W
2X1NM ICEBERG3 6043S 05211W 2X1NM 4.ICEBERGS AREA A6102S 02000W 4400S 02000W
4300S 03400W 5900S 03500W B5900S 03500W 5400S 03800W 6000S 05500W 6212S 05500W
C6100S 05500W 6100S 05900W 6500S 06716W 6723S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-19
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3/4 PROB OF RAIN STARTING EVENING VIS GOOD TO
MODERATE
OUTER RIO DE LA PLATA: SECTOR N 4/5 PROB OF ISOL RAIN TOWARDS THE END OF THE
PERIOD VIS GOOD TO MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 4/6 WITH GUSTS VIS GOOD TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/6 WITH GUSTS PROB OF RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 6/7 WITH GUSTS PROB OF RAIN
STARTING EARLY MORNING VIS MODERATE TO POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 8/7 WITH GUSTS BACK SW 6/5
WITH GUSTS BY 18/1500 PROB OF SH IMPR STARTING EARLY MORNING VIS VERY POOR TO
MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 8/7 WITH GUSTS BACK SW 6/5 WITH
GUSTS BY 18/1500 VIS VERY POOR TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/6 WITH GUSTS BACK SW 6 WITH
GUSTS BY 18/1200 PROB OF ISOL RAIN VIS MODERATE OCNL POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5 BACK SECTOR S 5 BY 18/1200 PROB OF
SH RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR N 5/6 WITH GUSTS BACK SW 5/6 WITH GUSTS BY 18/1500
PROB OF SH OF RAIN NXT RAIN VIS POOR OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 6 WITH GUSTS BACK SW 6 WITH
GUSTS PROB OF HVY RAIN NXT RAIN VIS POOR
W OF 30 - E OF 40W: SECTOR S 6/8 WITH GUSTS PROB OF RAIN VIS VERY POOR TO
POOR
REST OF THE AREA: SECTOR S 7/6 WITH GUSTS BACK SECTOR N 6 WITH GUSTS BY 18/1200
PROB OF ISOL RAIN IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 7 WITH GUSTS BACK
SW 6/7 WITH GUSTS BY 18/0300 PROB OF RAIN SNOW FALL VIS POOR
N OF 45 - W OF 30W: SECTOR S 8/7 WITH GUSTS PROB OF RAIN VIS VERY POOR TO
POOR
REST OF THE AREA: SW 7/5 WITH GUSTS PROB OF RAIN SNOW FALL VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SW 7/6 WITH GUSTS VEER NW
6/7 GUST WITH 8 INTENSITY BY 18/1200 PROB OF ISOL RAIN NXT RAIN VIS POOR
REST OF THE AREA: SECTOR N 6/8 WITH GUSTS PROB OF RAIN STARTING EARLY MORNING
VIS MODERATE TO POOR OCNL VERY POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 7 WITH GUSTS PROB OF
SNOW FALL VIS VERY POOR
REST OF THE AREA: SW 5/6 WITH GUSTS PROB OF SNOW FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR W 6 WITH GUSTS VEER VRB
5 BY 18/1500 PROB OF ISOL RAIN NXT HVY RAIN VIS POOR OCNL MODERATE
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS PROB OF RAIN SNOW FALL VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): NW 4 BACK SW 5 PROB OF SH RAIN AND SNOW
MIXTURE VIS MODERATE OCNL POOR
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