1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-09, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 142: LOW 984HPA AT 38S 41W MOV E NOT CHANGE EXPECTED 38S 29W BY 10/1200
PROVOKES WINDS FORCE 8 AROUND ITSELF WITH GUST BETWEEN 35S-45S AND 27W-47W
WARNING 144: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 10 FROM SECTOR W WITH
GUST IN FIN DEL MUNDO COASTS SOUTH WEST AREA (50S- 60S AND 40W- 60W) DRAKE AREA
(55S- 60S AND 60W- 67W)
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 984HPA 38S 41W MOV E NC EXP 38S 29W BY 10/1200
091400 UTC 1.SEA ICE LIMIT 7004S 02000W 7000S 02631W 6108S 03032W 6828S 03103W
6141S 03608W 6517S 03626W 6224S 04337W 6243S 05118W 6355S 05124W 6320S 05906W
6523S 06422W 6650S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5929S 03624W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5122S 03106W 2X1NM ICEBERG2 4642S 02828W
2X1NM ICEBERG3 4708S 02821W 6X3NM ICEBERG4 4953S 03249W 5X3NM ICEBERG5 4956S
03021W 3X1NM ICEBERG6 4705S 02842W 4X2NM ICEBERG7 4701S 02836W 3X1NM ICEBERG8
5905S 03600W 3X1NM ICEBERG9 4414S 03558W 2X1NM 4.ICEBERGS AREA A 7000S 02000W
4600S 02000W 4300S 03500W 6130S 03500W B 6130S 03500W 4300S 03500W 6000S 05000W
6300S 05000W C 6300S 05000W 6000S 05000W 6400S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-10
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3/4 VEER SECTOR W BY 10/0300 FOG MIST
DISSIPATING VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SECTOR S 3/4 VEER SECTOR W BY 10/0300 FOG MIST
DISSIPATING VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 3/4 VEER SECTOR W BY 10/0300 FOG MIST
DISSIPATING VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 3/4 VEER SECTOR W BY 10/0300 VIS
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/6 WITH GUSTS FOG MIST
DISSIPATING VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/7 WITH GUSTS FOG MIST
DISSIPATING VIS MODERATE TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 WITH GUSTS VEER SECTOR S BY
10/0300 VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 6/7 WITH GUSTS VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 10 WITH GUSTS VIS VERY POOR
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 8 WITH GUSTS BACK SECTOR S
BY 10/0600 PROB OF RAIN STORMS VIS VERY POOR
W OF 40 - E OF 50W: SECTOR S 8 WITH GUSTS DECR SECTOR S 5/6 BY 10/0000 PROB OF
SH RAIN VIS VERY POOR TO MODERATE
REST OF THE AREA: SECTOR S 4/5 WITH GUSTS PROB OF ISOL RAIN VIS GOOD OCNL
MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR S 8 WITH GUSTS PROB
OF RAIN STORMS VIS VERY POOR
REST OF THE AREA: SECTOR S 3/4 PROB OF ISOL SH RAIN VIS GOOD TO MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45 - E OF 50W: SECTOR S 8 WITH
GUSTS VEER SECTOR E 4/5 BY 10/0300 PROB OF SH RAIN VIS VERY POOR TO MODERATE
N OF 45 - W OF 50W: SECTOR W 3/4 VEER SECTOR S 5/6 BY 10/0000 VIS GOOD TO
MODERATE
REST OF THE AREA: W 5/4 VEER NW 6/7 WITH GUSTS BY 09/1800 VIS MODERATE OCNL
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 5/6 WITH GUSTS VEER SW BY
10/0600 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 5/6 WITH GUSTS INCR 10 WITH
GUSTS BY 09/2100 PROB OF ISOL RAIN VIS MODERATE TO VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 10 WITH GUSTS PROB OF RAIN VIS VERY
POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 09, APRIL 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
472/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-63S 87W-70W UNTIL 10/0300
473/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS GERLACHE STRAIT MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 62S-66S 70W-55W UNTIL 10/0600
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 952HPA 62S 71W MOV SE DPN
LOW 962HPA 66S 80W MOV SE WKN
LOW 982HPA 64S 44W MOV E WKN
HIGH 955HPA 73S 50W MOV NE INTSF
081400 UTC 1.SEA ICE LIMIT 7004S 02000W 7000S 02631W 6108S 03032W 6828S 03103W 6141S 03608W 6517S 03626W 6224S 04337W 6243S 05118W 6355S 05124W 6320S 05906W 6523S 06422W 6650S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5928S 03624W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5115S 03256W 3X1NM ICEBERG2 4851S 03347W 3X1NM ICEBERG3 4647S 02836W 2X1NM ICEBERG4 4715S 02852W 6X3NM ICEBERG5 4951S 03328W 5X3NM ICEBERG6 4506S 02943W 3X1NM ICEBERG7 4502S 03456W 2X1NM ICEBERG8 4718S 02905W 4X2NM ICEBERG9 4710S 02853W 3X1NM ICEBERG10 5933S 03611W 3X1NM 4.ICEBERGS AREA A 7020S 02000W 4200S 02000W 4300S 03500W 6153S 03600W B 6153S 03600W 4355S 03500W 5135S 04220W 6250S 04925W C 6250S 04925W 5745S 04530W 6228S 06716W 6655S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-10
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 8 WITH GUSTS BACK NW 10 GUST WITH 9 INTENSITY BY 09/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 6 WITH GUSTS BACK NW 8 BY 09/2100 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: NE 8 WITH GUSTS BACK NW 8/7 GUST WITH 9 INTENSITY BY 09/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 6 WITH GUSTS BACK NW 8 BY 09/2100 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
GERLACHE STRAIT : SECTOR E 8 WITH GUSTS DECR SECTOR E 8/7 WITH GUSTS BY 10/0600 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MARGARITA BAY : NE 8 GUST WITH 9 INTENSITY DECR SECTOR E 7 GUST WITH 8 INTENSITY BY 10/0600 VIS GOOD
EREBUS Y TERROR GULF : SECTOR E 4/5 WITH GUSTS INCR SE 7 GUST WITH 8 INTENSITY BY 10/0600 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 8 GUST WITH 9 INTENSITY BACK SW 6/7 WITH GUSTS BY 09/1800 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR E 7/8 WITH GUSTS DECR NE 6 WITH GUSTS BY 09/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 5/7 WITH GUSTS VEER SE 5/4 BY 09/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SECTOR W 4/5 VEER NE 5/7 BY 10/0000 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SE 4/3 BACK SECTOR E 4/5 BY 09/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 4/5 BACK SECTOR E 4/3 BY 09/2100 VIS GOOD=