1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-05, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 141: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) FROM 06/0900
WARNING 139: LOW 966HPA AT 59S 31W PROVOKES WINDS FORCE 8 AROUND ITSELF WITH
GUST
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 966HPA 59S 31W MOV SE DPN EXTENDS CFNT AT 59S 31W 41S 26W 36S 34W MOV E
HIGH 1026HPA 38S 57W MOV E NC EXTENDS RIDGE AT 38S 57W 48S 61W 54S 63W MOV E
051400 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 4716S 02939W 2X1NM ICEBERG4 4804S 02939W 6X3NM ICEBERG5 5000S
03411W 5X3NM ICEBERG6 5002S 02943W 3X1NM ICEBERG7 4506S 03449W 2X1NM ICEBERG8
4801S 02923W 4X2NM ICEBERG9 4757S 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 2026-04-6
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 4/5 WITH GUSTS VIS GOOD
OUTER RIO DE LA PLATA: SECTOR E 4/5 WITH GUSTS VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR E 4/5 WITH GUSTS VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 3/4 BACK SECTOR E BY 05/1800 VIS
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 3/4 BACK SECTOR N BY 6/0000
VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 3/4 VEER SECTOR N BY 6/0000
VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 3/4 VEER SECTOR N 5/6 WITH
GUSTS BY 05/0900 VIS GOOD TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 3/4 VEER SECTOR N 5/6 WITH GUSTS
BY 05/2100 FOG MIST DISSIPATING VIS MODERATE TO GOOD OCNL POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 3/4 VEER SECTOR N 5/6 WITH GUSTS BY
6/0000 VIS GOOD TO MODERATE
ISLAS MALVINAS COASTS: SECTOR W 4/5 VEER SECTOR N 5/6 WITH GUSTS BY 6/0300 VIS
GOOD TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 6/7 GUST WITH 8 INTENSITY
VEER SECTOR W 4/5 WITH GUSTS BY 05/2100 PROB OF SH RAIN VIS POOR TO MODERATE
REST OF THE AREA: SECTOR S 5/4 WITH GUSTS VEER VRB 3 PROB OF ISOL RAIN VIS GOOD
OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 6/7 GUST WITH 8
INTENSITY PROB OF SH RAIN VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 8 WITH GUSTS DECR 6/7 WITH GUSTS BY 6/0900 PROB OF
RAIN VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SW 6/7 WITH GUSTS VEER SECTOR W 4/5
WITH GUSTS BY 6/0900 PROB OF ISOL RAIN VIS POOR TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 5/6 WITH GUSTS VEER
SECTOR W 6/7 GUST WITH 8 INTENSITY BY 6/0300 PROB OF ISOL RAIN VIS POOR OCNL
VERY POOR
REST OF THE AREA: SECTOR W 8 WITH GUSTS DECR 6/7 WITH GUSTS BY 6/0900 PROB OF
ISOL RAIN VIS VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SW 6/7 VEER SECTOR W 4/5 WITH GUSTS BY
6/1200 PROB OF ISOL RAIN VIS POOR TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 4/5 WITH GUSTS VEER SECTOR N 6/7
WITH GUSTS BY 6/0300 BACK SECTOR W 8 WITH GUSTS BY 6/0900 VIS MODERATE TO POOR
OCNL VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 05, APRIL 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
449/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 GUST WITH 9 INTENSITY IN 63S-68S 90W-70W UNTIL 05/1200
450/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR W GUST WITH 9 INTENSITY IN 60S-64S 62W-50W UNTIL 05/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 979HPA MOV E DPN
LOW 980HPA 66S 56W MOV SE WKN
HIGH 990HPA 68S 41W MOV E WKN
RIDGE 60S 75W 63S 70W 67S 68W MOV E INTSF
041400 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 5924S 03626W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5115S 03256W 3X1NM ICEBERG2 4851S 03347W 3X1NM ICEBERG3 4716S 02939W 2X1NM ICEBERG4 4809S 02944W 6X3NM ICEBERG5 5001S 03414W 5X3NM ICEBERG6 5004S 02942W 3X1NM ICEBERG7 4505S 03444W 2X1NM ICEBERG8 4812S 02930W 4X2NM ICEBERG9 4802S 02917W 3X1NM ICEBERG10 5934S 03618W 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-04-6
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 7/5 WITH GUSTS VEER NW 5/4 WITH GUSTS BY 5/0900 PROB OF MIST PROB OFSCT SH WORSENING DURING THE MORNING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 8 WITH GUSTS BACK SW 7 GUST WITH 8 INTENSITY BY 5/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 7/5 WITH GUSTS VEER NW 5/4 WITH GUSTS BY 5/0900 PROB OF MIST PROB OFSCT SH WORSENING DURING THE MORNING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 8 WITH GUSTS BACK SW 7 GUST WITH 8 INTENSITY BY 5/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SW 6/5 WITH GUSTS VEER NE 5/4 BY 5/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
MARGARITA BAY : SECTOR N 6/5 VEER NE 6/7 BY 5/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
EREBUS Y TERROR GULF : SW 5/7 GUST WITH 8 INTENSITY DECR SW 5/4 BY 5/1200 AFTERWARDS NW 3 BY 5/1800 PROB OF MIST IMPR DURING THE EARLY MORNING PROB OF VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65 - W OF 80W: NW 6/8 WITH GUSTS BACK SECTOR W 7/5 WITH GUSTS BY 5/1800 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA E OF 80W: SECTOR W 7/5 WITH GUSTS VEER NW 6/7 WITH GUSTS BY 5/0900 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 8 GUST WITH 9 INTENSITY DECR NW 7/5 WITH GUSTS BY 5/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NW 5 GUST WITH 8 INTENSITY VEER NE 5/7 BY 5/0900 PROB OF INTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD PROB OF VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SE 7/8 WITH GUSTS VEER SECTOR S 7/5 BY 5/0900 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE IMPR STARTING EARLY MORNING VIS MODERATE TO POOR
NORTHERN WEDDELL SEA REST OF THE AREA: NE 3/4 VEER SECTOR E 4/5 BY 5/0600 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 4/5 VEER SECTOR E 4/3 BY 5/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS POOR TO MODERATE OCNL GOOD=