1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-07, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 143: LOW 1005HPA AT 30S 57W MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8
FROM SECTOR S WITH GUST IN OUTER RIO DE LA PLATA URUGUAY SOUTH EAST COASTS FROM
08/0000
WARNING 142: LOW 1005HPA AT 30S 57W MOV SE DEEPENING EXPECTED 36S 49W BY 08/1200
WILL PROVOKE WINDS FORCE 8 FROM SECTOR E WITH GUST BETWEEN 35S-40S AND 55W-40W
FROM 07/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
061400 UTC 1.SEA ICE LIMIT 7031S 02000W 6717S 02922W 6036S 03001W 6536S 03056W
6301S 03311W 6144S 04133W 6222S 04918W 6345S 05306W 6311S 05745W 6358S 06227W
6514S 06429W 6637S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5926S 03622W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5115S 03256W 3X1NM ICEBERG2 4851S 03347W
3X1NM ICEBERG3 4709S 02915W 2X1NM ICEBERG4 4749S 02929W 6X3NM ICEBERG5 4957S
03359W 5X3NM ICEBERG6 5002S 02943W 3X1NM ICEBERG7 4502S 03456W 2X1NM ICEBERG8
4736S 02917W 4X2NM ICEBERG9 4729S 02917W 3X1NM ICEBERG10 5933S 03611W 3X1NM
4.ICEBERGS AREA A 7127S 02000W 4600S 02000W 4300S 02500W 4300S 03500W 6124S
03500W B 6124S 03500W 4900S 03500W 4900S 03900W 5100S 04200W 6212S 04200W C
6212S 04200W 5700S 04200W 5900S 05000W 6100S 05500W 6421S 05500W D 6421S 05500W
6100S 05500W 6100S 06100W 6500S 06716W 6645S 06716W
LOW 1005HPA 30S 57W MOV SE DPN EXP 36S 49W BY 08/1200 EXTENDS WFNT AT 30S 57W
33S 52W MOV SE EXP 36S 49W 38S 45W 36S 37W BY 08/1200
HIGH 1025HPA 37S 39W MOV NE WKN EXP 35S 24W BY 08/1200
HIGH 1020HPA 46S 65W MOV E EXP 46S 53W BY 08/1200
LOW 1008HPA 50S 50W MOV E EXTENDS CFNT AT 50S 50W 44S 58W 41S 65W MOV E EXP 50S
20W 45S 34W BY 08/1200
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-8
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 4/5 WITH GUSTS INCR 5/6 WITH GUSTS BY 07/2100
DECR 5/4 WITH GUSTS BY 8/0600 PROB OF RAIN IMPR TOWARDS THE END OF THE PERIOD
VIS POOR OCNL VERY POOR
OUTER RIO DE LA PLATA: SE 4/5 WITH GUSTS VEER SECTOR S 6/7 GUST WITH 8 INTENSITY
BY 07/2100 PROB OF RAIN IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO
POOR
URUGUAY SOUTH EAST COASTS: SECTOR E 5 WITH GUSTS VEER SECTOR S 6/8 WITH GUSTS BY
8/0000 PROB OF RAIN STORMS VIS VERY POOR
MAR DEL PLATA COASTS(3617S - 3830S): SE 4/5 WITH GUSTS INCR 5/6 WITH GUSTS BY
07/1500 INCR 6/7 WITH GUSTS BY 8/0600 PROB OF SH RAIN VIS POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SE 3/4 PROB OF MIST FOG PATCHES VIS
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): VRB 3 BACK SECTOR N BY 8/0300 PROB OF
MIST FOG PATCHES VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 3/4 PROB OF MIST FOG PATCHES
VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5 WITH GUSTS VEER VRB 3/4 BY
07/1500 VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 6/7 WITH GUSTS VIS POOR
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR S 5/4 WITH GUSTS VEER VRB 3
BY 07/1800 VIS MODERATE TO GOOD
REST OF THE AREA: NE 5/6 WITH GUSTS VEER E 7/8 GUST WITH 9 INTENSITY BY 07/2100
PROB OF HVY RAIN STORMS VIS VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 6/5 WITH GUSTS PROB OF ISOL
RAIN STARTING NIGTH VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 5 WITH GUSTS BACK VRB 3/4 BY
07/1800 BACK SECTOR S 4 BY 8/0300 PROB OF ISOL RAIN DURING THE MORNING VIS
MODERATE TO GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 7/6 WITH GUSTS DECR 6/5 WITH
GUSTS PROB OF DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 6/7 WITH GUSTS PROB OF DRIZZLE
SPELLS OF GOOD WEATHER PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6/7 WITH GUSTS PROB OF DRIZZLE RAIN
SPELLS OF GOOD WEATHER VIS POOR OCNL VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 07, APRIL 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
465/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 60S-63S 65W-50W UNTIL 07/2100
466/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-64S 90W-82W UNTIL 08/0600
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 970HPA 64S 50W MOV SE DPN
LOW 972HPA 68S 72W MOV E WKN
LOW 979HPA 63S 62W MOV E WKN
RIDGE 63S 24W 67S 34W 70S 34W MOV NE INTSF
061400 UTC 1.SEA ICE LIMIT 7031S 02000W 6717S 02922W 6036S 03001W 6536S 03056W 6301S 03311W 6144S 04133W 6222S 04918W 6345S 05306W 6311S 05745W 6358S 06227W 6514S 06429W 6637S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5926S 03622W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5115S 03256W 3X1NM ICEBERG2 4851S 03347W 3X1NM ICEBERG3 4709S 02915W 2X1NM ICEBERG4 4749S 02929W 6X3NM ICEBERG5 4957S 03359W 5X3NM ICEBERG6 5002S 02943W 3X1NM ICEBERG7 4502S 03456W 2X1NM ICEBERG8 4736S 02917W 4X2NM ICEBERG9 4729S 02917W 3X1NM ICEBERG10 5933S 03611W 3X1NM 4.ICEBERGS AREA A 7127S 02000W 4600S 02000W 4300S 02500W 4300S 03500W 6124S 03500W B 6124S 03500W 4900S 03500W 4900S 03900W 5100S 04200W 6212S 04200W C 6212S 04200W 5700S 04200W 5900S 05000W 6100S 05500W 6421S 05500W D 6421S 05500W 6100S 05500W 6100S 06100W 6500S 06716W 6645S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-8
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 8 WITH GUSTS DECR SECTOR W 6/5 WITH GUSTS BY 07/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 9 WITH GUSTS VEER NE 8 WITH GUSTS BY 07/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 8 WITH GUSTS DECR SECTOR W 6/5 WITH GUSTS BY 07/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 9 WITH GUSTS VEER NW 8 WITH GUSTS BY 07/1800 AFTERWARDS NW 5/4 BY 8/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
GERLACHE STRAIT : SW 3/4 VEER NE 4/3 BY 8/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE NIGTH VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : NE 3/4 VEER SECTOR E 3 BY 07/1800 VIS GOOD
EREBUS Y TERROR GULF : SW 7/8 WITH GUSTS DECR SW 10/6 WITH GUSTS BY 8/0900 PROB OF COASTAL BLIZZARD SPELLS OF GOOD WEATHER DURING THE EVENING VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: SECTOR W 4/5 WITH GUSTS VEER NW 7/8 WITH GUSTS BY 07/1500 AFTERWARDS SECTOR W 5 WITH GUSTS BY 8/0600 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 4/5 VEER SECTOR E 5 BY 8/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 3/4 VEER SECTOR E 4/5 BY 07/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
NORTHERN WEDDELL SEA W OF 40W: NW 8 WITH GUSTS BACK SECTOR W 8 GUST WITH 9 INTENSITY BY 07/1800 AFTERWARDS SECTOR W 7/6 BY 8/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: NE 4/5 VEER SECTOR E 4/5 BY 07/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 3/4 VEER NE 4/5 BY 07/2100 VIS GOOD=