1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-12, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 320: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH
GUST IN PENINSULA DE VALDES COASTS FROM 13/0900
PART 2 GENERAL SYNOPSIS AT 09:00UTC
111400 UTC 1.SEA ICE LIMIT 5910S 02000W 5744S 02618W 5837S 03217W 5927S 03758W
5950S 04317W 6214S 04813W 6309S 05247W 6308S 05655W 6246S 06032W 6412S 06337W
6615S 06559W 6640S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6216S 05328W 21X12NM
A81 6113S 05219W 28X25NM A76C 5229S 03145W 16X6NM D33C 6320S 05311W 9X4NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5234S 03147W 2X1NM ICEBERG2 6252S 05309W
6X3NM ICEBERG3 6321S 05304W 5X2NM ICEBERG4 6311S 05300W 4X3NM ICEBERG5 6308S
05250W 2X1NM ICEBERG6 5954S 03614W 4X2NM 4.ICEBERGS AREA A6000S 02000W 4300S
02000W 5000S 03300W 6000S 03400W B6000S 03400W 5000S 03300W 6020S 05000W 6300S
04900W C6300S 04900W 6020S 05000W 6200S 06716W 6800S 06716W
HIGH 1028HPA 45S 45W MOV NE INTSF EXP 41S 40W BY 13/1200
LOW 1001HPA 58S 62W MOV SE DPN EXP 59S 33W BY 13/1200 EXTENDS CFNT AT 58S 62W
54S 64W 52S 68W MOV SE EXP 59S 33W 54S 39W 50S 50W BY 13/1200
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-13
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 4/5 BACK SECTOR N 3 BY 13/0000 PROB OF FOG AND
MIST IN PATCHES TEMPORARILY DISSIPATING VIS MODERATE OCNL GOOD
OUTER RIO DE LA PLATA: SECTOR S 6/5 WITH GUSTS DECR 4/3 BY 13/0000 BACK VRB 3 BY
13/0900 PROB OF SH MIST IMPR GRADUALLY VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 6/5 WITH GUSTS DECR 4/3 BY 13/0000 BACK VRB
3 BY 13/0900 PROB OF SH MIST IMPR GRADUALLY VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 6/5 WITH GUSTS DECR 4/3 BY
12/1800 VEER SECTOR N 3/5 BY 13/0900 PROB OF MIST FOG PATCHES IMPR STARTING
EVENING VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 3/4 INCR 5/6 WITH GUSTS BY
13/0000 PROB OF FOG AND MIST IN PATCHES STARTING EARLY MORNING VIS GOOD TO
POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS INCR 7/8 WITH
GUSTS BY 13/0600 PROB OF FOG AND MIST IN PATCHES STARTING NIGTH VIS MODERATE TO
VERY POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 WITH GUSTS BACK VRB 3/4 BY
13/1200 PROB OF DRIZZLE RAIN STARTING EVENING VIS POOR
SOUTH PATAGONIA COASTS(48S - 54S): VRB 3/4 VEER SECTOR E 6/7 WITH GUSTS BY
13/0000 PROB OF HVY RAIN STARTING EVENING VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/4 BACK SECTOR S 5/6 WITH GUSTS BY
12/2100 BACK SECTOR E 6/7 WITH GUSTS BY 13/0300 PROB OF DRIZZLE RAIN STARTING
EVENING VIS MODERATE TO POOR
ISLAS MALVINAS COASTS: NW 5/6 WITH GUSTS VEER VRB 4 BY 12/2100 BACK E 6/7 WITH
GUSTS BY 13/0600 PROB OF DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO
POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR S 6/5 WITH GUSTS BACK SECTOR
E 5 WITH GUSTS BY 12/2100 PROB OF DRIZZLE STARTING EARLY MORNING VIS MODERATE
REST OF THE AREA: SECTOR E 5/4 BACK SECTOR N BY 13/0300 PROB OF RAIN IMPR
STARTING EARLY MORNING VIS MODERATE TO GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR S 6/7 WITH GUSTS DECR
6/5 BY 13/0000 DECR 5/4 BY 13/0900 PROB OF SH RAIN DURING THE MORNING VIS POOR
TO GOOD
REST OF THE AREA: SECTOR S 5/4 DECR 4/3 BY 12/1800 VEER VRB 3 BY 13/0300 VIS
GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: VRB 3/4 VEER SECTOR N 5/6
WITH GUSTS BY 13/0000 PROB OF ISOL RAIN TOWARDS THE END OF THE PERIOD VIS GOOD
TO MODERATE
REST OF THE AREA: VRB 3/4 VEER SECTOR N 5/6 WITH GUSTS BY 13/0000 PROB OF ISOL
RAIN IMPR TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 5/6 WITH GUSTS VEER NW 6/7
WITH GUSTS BY 13/0300 PROB OF RAIN AND SNOW MIXTURE STARTING EARLY MORNING VIS
MODERATE TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 6/7 WITH GUSTS BACK SECTOR S
WITH GUSTS BY 13/0000 PROB OF RAIN AND SNOW MIXTURE VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5 WITH GUSTS BACK SECTOR S WITH
GUSTS BY 12/1500 DECR 4 BY 13/0600 PROB OF RAIN SNOW FALL IMPR STARTING NIGTH
VIS POOR TO GOOD
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 12, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
947/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 9 WITH GUST IN 63S-72S 90W-75W FROM 12/1500 UNTIL 13/1200
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 1006HPA 65S 74W MOV SE WKN
LOW 976HPA 70S 30W MOV E WKN
LOW 996HPA 61S 44W MOV SE WKN
HIGH 1008HPA 67S 79W MOV E INTSF
RIDGE 60S 78W 62S 63W MOV E INTSF
111400 UTC 1.SEA ICE LIMIT 5910S 02000W 5744S 02618W 5837S 03217W 5927S 03758W 5950S 04317W 6214S 04813W 6309S 05247W 6308S 05655W 6246S 06032W 6412S 06337W 6615S 06559W 6640S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6216S 05328W 21X12NM A81 6113S 05219W 28X25NM A76C 5229S 03145W 16X6NM D33C 6320S 05311W 9X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5234S 03147W 2X1NM ICEBERG2 6252S 05309W 6X3NM ICEBERG3 6321S 05304W 5X2NM ICEBERG4 6311S 05300W 4X3NM ICEBERG5 6308S 05250W 2X1NM ICEBERG6 5954S 03614W 4X2NM 4.ICEBERGS AREA A6000S 02000W 4300S 02000W 5000S 03300W 6000S 03400W B6000S 03400W 5000S 03300W 6020S 05000W 6300S 04900W C6300S 04900W 6020S 05000W 6200S 06716W 6800S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-13
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 VEER SECTOR W 5/4 BY 12/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NOON VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 5/4 WITH GUSTS INCR SW 5/6 WITH GUSTS BY 13/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 VEER SECTOR W 5/4 BY 12/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NOON VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 5/4 WITH GUSTS INCR SW 5/6 WITH GUSTS BY 13/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE
GERLACHE STRAIT : SECTOR E 4/3 VEER SE 4/3 BY 13/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
MARGARITA BAY : NE 4/3 BACK SECTOR N 5/7 WITH GUSTS BY 13/1300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NIGTH VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 4/5 VEER NW 5/6 BY 13/0600 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 5/6 WITH GUSTS VEER NW 6/7 GUST WITH 8 INTENSITY BY 12/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EVENING VIS GOOD TO MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR N 3/4 BACK SECTOR N 5/7 BY 12/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 4/7 BACK SECTOR N 7/8 WITH GUSTS BY 12/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA N OF 65S: SECTOR W 6/5 WITH GUSTS BACK SW 4/3 WITH GUSTS BY 12/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 5/6 WITH GUSTS BACK SW 4/3 BY 12/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 5/4 WITH GUSTS BACK NE 5/6 BY 13/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE=