1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-10, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 147: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 45S-55S 40W-20W FROM 10/2100
WARNING 146: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR N
WITH GUST IN GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS FIN DEL MUNDO
COASTS DRAKE AREA (55S- 60S AND 60W- 67W) FROM 11/0000
WARNING 144: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN SOUTH WEST AREA (50S- 60S AND 40W- 60W) DRAKE AREA (55S- 60S AND 60W-
67W)
WARNING 142: LOW 981HPA AT 38S 31W MOV E WEAKENING PROVOKES WINDS FORCE 9 AROUND
ITSELF WITH GUST
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 987HPA 43S 27W MOV SE DPN EXTENDS CFNT AT 43S 27W 38S 22W 35S 24W MOV SE
ASOCIATED WITH WFNT AT 43S 27W 45S 20W
LOW 981HPA 38S 31W MOV E WKN EXTENDS OFNT AT 43S 27W 40S 33W 35S 33W MOV E
LOW 971HPA 58S 40W MOV NE DPN EXP 55S 25W BY 11/1200 EXTENDS CFNT AT 58S 40W 51S
44W 47S 41W MOV NE EXP 40S 33W 45S 21W 56S 20W BY 11/1200 ASOCIATED WITH WFNT
AT 58S 40W 56S 34W 56S 31W
HIGH 1020HPA 33S 55W MOV NE INTSF EXTENDS RIDGE AT 33S 55W 42S 41W 47S 29W MOV
E
101400 UTC 1.SEA ICE LIMIT 6918S 01950W 6930S 02633W 6707S 03153W 6041S 03421W
6306S 03503W 6228S 04351W 6238S 04957W 6336S 05349W 6258S 05526W 6341S 06153W
6458S 06435W 6600S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5930S 03621W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5125S 03045W 2X1NM ICEBERG2 4639S 02825W
2X1NM ICEBERG3 4703S 02753W 6X3NM ICEBERG4 5004S 03154W 5X3NM ICEBERG5 4702S
02825W 4X2NM ICEBERG6 4702S 02816W 3X1NM ICEBERG7 5900S 03558W 3X1NM ICEBERG8
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 2026-04-11
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 BACK SECTOR N 4 PROB OF MIST FOG PATCHES DURING THE
MORNING TEMPORARILY DISSIPATING VIS MODERATE OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR W 4 VEER SECTOR N PROB OF MIST FOG PATCHES DURING
THE MORNING TEMPORARILY DISSIPATING VIS MODERATE OCNL GOOD
URUGUAY SOUTH EAST COASTS: VRB 3 BACK SECTOR N 4 PROB OF MIST FOG PATCHES DURING
THE MORNING TEMPORARILY DISSIPATING VIS MODERATE OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 4 VEER SECTOR N PROB OF MIST
DURING THE MORNING TEMPORARILY DISSIPATING VIS MODERATE OCNL GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5/4 VEER SECTOR N 5 VIS
GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5/4 BACK SECTOR N 5 WITH GUSTS
VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 4 BACK SECTOR N 7/5 WITH GUSTS VIS
GOOD OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 6/4 WITH GUSTS VEER SECTOR N 6/8
WITH GUSTS PROB OF SH RAIN STARTING EVENING VIS MODERATE TO VERY POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 7/4 WITH GUSTS VEER SECTOR N 8/6
WITH GUSTS PROB OF SH RAIN STARTING NIGTH VIS VERY POOR TO POOR
ISLAS MALVINAS COASTS: SECTOR W 7/4 WITH GUSTS VEER SECTOR N 6/7 WITH GUSTS PROB
OF SH RAIN SPELLS OF GOOD WEATHER VIS POOR OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 9/8 WITH GUSTS BACK SECTOR
W 7/6 WITH GUSTS PROB OF SH RAIN SPELLS OF GOOD WEATHER VIS VERY POOR TO POOR
W OF 40W: SECTOR W 5 WITH GUSTS LOW PROB OF ISOL RAIN VIS GOOD
REST OF THE AREA: SECTOR W 9/5 WITH GUSTS PROB OF ISOL SH RAIN SPELLS OF GOOD
WEATHER VIS VERY POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - S OF 45S: SECTOR S 4/5 VEER
SECTOR N 6/8 WITH GUSTS BACK SECTOR W 7 WITH GUSTS PROB OF RAIN NXT PROB OF SH
OF RAIN SH OF SNOW VIS MODERATE OCNL VERY POOR
W OF 30 - S OF 45S: SECTOR W 5/8 WITH GUSTS PROB OF RAIN NXT PROB OF SH OF RAIN
SH OF SNOW VIS MODERATE TO VERY POOR
REST OF THE AREA: SECTOR S 9/8 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS PROB OF
SH RAIN SPELLS OF GOOD WEATHER VIS VERY POOR TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR W 7/6 WITH GUSTS LOW
PROB OF SH VIS MODERATE
REST OF THE AREA: SECTOR W 6/4 WITH GUSTS VEER SECTOR N 6 WITH GUSTS VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR N 5/7 WITH GUSTS BACK
SECTOR W 8/7 WITH GUSTS PROB OF SH RAIN NXT PROB OF SH OF RAIN SH OF SNOW SPELLS
OF GOOD WEATHER VIS MODERATE TO VERY POOR
REST OF THE AREA: SECTOR E 4/6 WITH GUSTS VEER SECTOR S 7 WITH GUSTS PROB OF SH
OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER VIS MODERATE TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6/8 WITH GUSTS BACK
SECTOR S 6 WITH GUSTS PROB OF SH OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER VIS
POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 8/6 WITH GUSTS VEER SECTOR N 7 WITH GUSTS PROB OF SH
OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER VIS VERY POOR TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8/5 WITH GUSTS VEER SECTOR N 6/8
WITH GUSTS PROB OF SH RAIN SPELLS OF GOOD WEATHER VIS VERY POOR OCNL POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 10, APRIL 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
478/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 60S-63S 85W-70W FROM 10/2100 UNTIL 11/0900
479/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 62S-66S 59W-50W UNTIL 10/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 958HPA MOV SE DPN
LOW 966HPA 62S 72W MOV SE WKN
LOW 970HPA 68S 88W MOV E WKN
RIDGE 66S 90W 63S 72W 60S 75W MOV E WKN
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 2026-04-11
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 8 WITH GUSTS BACK SECTOR W 6/5 BY 10/1800 PROB OF MIST PROB OFISOL RAIN IMPR DURING THE EVENING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR E 5/4 BACK SECTOR W 8 BY 10/0600 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 8 WITH GUSTS BACK SECTOR W 6/5 BY 10/1800 PROB OF MIST PROB OFISOL RAIN IMPR DURING THE EVENING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR E 5/4 BACK SECTOR W 8 BY 10/0600 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO GOOD
GERLACHE STRAIT : SECTOR E 6/5 WITH GUSTS DECR NE 5/4 WITH GUSTS BY 10/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR E 8 GUST WITH 9 INTENSITY DECR SECTOR E 7 GUST WITH 8 INTENSITY BY 11/0000 PROB OF FOG AND MIST IN PATCHES IMPR DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
EREBUS Y TERROR GULF : SECTOR S 5/6 WITH GUSTS BACK NE 3/4 BY 11/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: SECTOR N 8 WITH GUSTS VEER NE 9 WITH GUSTS BY 10/2100 PROB OF FOG AND MIST IN PATCHES PROB OF RAIN AND SNOW MIXTURE WORSENING STARTING NOON VIS VERY POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR E 4/5 WITH GUSTS BACK NW 5/4 BY 10/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SE 5/4 VEER SECTOR S 4 BY 10/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EVENING VIS GOOD TO MODERATE
NORTHERN WEDDELL SEA W OF 40 - N OF 65S: SECTOR E 8/6 WITH GUSTS DECR SECTOR E 5 BY 10/1800 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING NIGTH VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 4 VEER SECTOR S 4/3 BY 11/0000 FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/3 BACK SECTOR E 4/3 BY 10/2100 VIS GOOD=