1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-15, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 158: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH
GUST IN SOUTH PATAGONIA COASTS ISLAS MALVINAS COASTS FROM 16/0600
WARNING 157: COLD FRONT AT 60S 40W 53S 41W 45S 51W PROVOKES WINDS FORCE 8 FROM
SECTOR N WITH GUST BETWEEN 50S-60S AND 30W-40W
WARNING 156: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 WITH GUST IN FIN DEL
MUNDO COASTS DRAKE AREA (55S- 60S AND 60W- 67W)
WARNING 151: COLD FRONT AT 60S 40W 53S 41W 45S 51W PROVOKES WINDS FORCE 8 WITH
GUST BETWEEN 55S-60S AND 40W-60W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
STRONG BARIC GRADIENT FIN DEL MUNDO COASTS DRAKE AREA (55S- 60S AND 60W- 67W)
MOV E WKN
CFNT AT 60S 40W 53S 41W 45S 51W MOV E
LOW 1014HPA 41S 56W MOV E WKN EXTENDS CFNT AT 41S 56W 37S 61W 35S 65W MOV E
HIGH 1020HPA 42S 63W MOV SE INTSF EXP 53S 40W BY 16/1200 EXTENDS RIDGE AT 42S
64W 45S 57W 50S 53W MOV E
HIGH 1026HPA 40S 43W MOV SE NC EXP 48S 38W BY 16/1200 EXTENDS RIDGE AT 35S 45W
40S 43W 52S 29W MOV E
LOW 1008HPA 43S 31W NOT MOV WKN EXTENDS CFNT AT 43S 29W 40S 29W 34S 38W MOV SLWY
ASOCIATED WITH OFNT AT 45S 29W 45S 32W 42S 34W
151400 UTC 1.SEA ICE LIMIT 6840S 02000W 6828S 02729W 6327S 03132W 6009S 03309W
6059S 03952W 6217S 05036W 6337S 05311W 6313S 05740W 6339S 06042W 6431S 06416W
6601S 06544W 6644S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5920S 03602W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5025S 03003W 2X1NM ICEBERG2 4640S 02749W
6X3NM ICEBERG3 4928S 03034W 5X3NM ICEBERG4 4657S 02747W 4X2NM ICEBERG5 4656S
02738W 3X1NM ICEBERG6 5825S 03611W 3X1NM ICEBERG7 4313S 03411W 2X1NM 4.ICEBERGS
AREA A6853S 02000W 4447S 02000W 4257S 03200W 6025S 03445W B6025S 03445W 4245S
03220W 4246S 03500W 5655S 04500W 6150S 04300W C6150S 04300W 5700S 04500W 6235S
06716W 6712S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-16
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 4/5 WITH GUSTS PROB OF HVY RAIN STARTING NIGTH VIS
MODERATE TO POOR
OUTER RIO DE LA PLATA: SECTOR E 3/5 WITH GUSTS PROB OF HVY RAIN STARTING NIGTH
VIS MODERATE TO POOR
URUGUAY SOUTH EAST COASTS: NE 4/6 WITH GUSTS PROB OF HVY RAIN STARTING NIGTH FOG
AND MIST IN PATCHES DISSIPATING VIS MODERATE TO POOR
MAR DEL PLATA COASTS(3617S - 3830S): NE 3 VEER SECTOR S 4/5 WITH GUSTS BY
16/0600 PROB OF HVY RAIN STARTING NIGTH FOG AND MIST IN PATCHES DISSIPATING VIS
POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 3/4 VEER SECTOR N 3 FOG AND
MIST IN PATCHES DISSIPATING PROB OF RAIN IMPR FOG AND MIST IN PATCHES STARTING
EARLY MORNING VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): VRB 3 BACK SECTOR N 5/6 WITH GUSTS BY
15/1800 VIS GOOD TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6/7 WITH GUSTS BACK NW 5 WITH
GUSTS VIS GOOD OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S) E OF 65W: SECTOR N 7 WITH GUSTS INCR 8 WITH
GUSTS BY 16/0600 VIS MODERATE TO POOR
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR N 7/5 WITH GUSTS
MIST VIS MODERATE OCNL GOOD
FIN DEL MUNDO COASTS(54S - 55S): NW 8/6 WITH GUSTS PROB OF RAIN SPELLS OF GOOD
WEATHER VIS POOR OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR N 7 WITH GUSTS INCR 8 WITH GUSTS BY 16/0600 VIS
MODERATE TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR E 5/7 WITH GUSTS PROB OF HVY
RAIN STORMS STARTING NIGTH VIS MODERATE TO POOR
E OF 40W: SECTOR S 4 WITH GUSTS PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
E OF 50W: E 3 BACK NE 3/4 VIS GOOD
REST OF THE AREA: NE 5/6 WITH GUSTS PROB OF RAIN STORMS VIS GOOD TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) NE OF THE REGION: NE 5/6 WITH GUSTS
PROB OF RAIN STORMS VIS POOR
SE OF THE REGION: SECTOR E 7/5 WITH GUSTS PROB OF RAIN STORMS VIS POOR
REST OF THE AREA: SECTOR S 7/5 WITH GUSTS PROB OF SH IMPR VIS POOR TO
MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 5/4 WITH GUSTS PROB
OF ISOL RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: VRB 4 BACK SECTOR N 4/5 WITH GUSTS PROB OF ISOL RAIN VIS GOOD
OCNL MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) NE OF THE REGION: NW 5/6 WITH GUSTS PROB
OF DRIZZLE VIS MODERATE OCNL GOOD
SE OF THE REGION: SECTOR W 7/8 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS
POOR
NW OF THE REGION: SECTOR N 8/5 WITH GUSTS BACK VRB 4 PROB OF SH RAIN IMPR FOG
AND MIST IN PATCHES STARTING NIGTH VIS POOR
REST OF THE AREA: SECTOR N 8 WITH GUSTS BACK SECTOR W 8/7 WITH GUSTS PROB OF
RAIN AND SNOW MIXTURE VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR N 5 WITH GUSTS PROB OF
ISOL RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: NW 8/7 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): NW 8/7 WITH GUSTS PROB OF RAIN VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 15, APRIL 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
519/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 GUST WITH 9 INTENSITY IN 60S-64S 82W-70W UNTIL 16/1500
520/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 65S-69S 88W-70W UNTIL 16/0900
521/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 GUST WITH 9 INTENSITY IN 60S-67S 50W-30W UNTIL 16/0900
522/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM SE WITH GUST VEER SW IN 63S-66S 56W-52W UNTIL 15/1500
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 938HPA 63S 85W MOV SE DPN
LOW 961HPA 65S 47W MOV SE DPN
LOW 975HPA 73S 50W MOV SE DPN
LOW 975HPA 73S 50W MOV SE DPN
131400 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 5927S 03614W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5125S 03045W 2X1NM ICEBERG2 4640S 02749W 6X3NM ICEBERG3 4950S 03042W 5X3NM ICEBERG4 4657S 02747W 4X2NM ICEBERG5 4656S 02738W 3X1NM ICEBERG6 5857S 03559W 3X1NM ICEBERG7 4303S 03457W 2X1NM 4.ICEBERGS AREA A7000S 02000W 4600S 02000W 4300S 03500W 7030S 02400W B7030S 02400W 4300S 03500W 6000S 05000W 6300S 05000W C6300S 05000W 6000S 05000W 6400S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-16
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 6/7 WITH GUSTS INCR SECTOR N 9 WITH GUSTS BY 15/2100 AFTERWARDS NW 7/5 WITH GUSTS BY 16/0600 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING NOON VIS MODERATE TO VERY POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7/8 WITH GUSTS VEER SECTOR N 9 WITH GUSTS BY 16/0000 PROB OF FOG MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS NOON VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NW 6/7 WITH GUSTS INCR SECTOR N 9 WITH GUSTS BY 15/1500 AFTERWARDS NW 7/5 WITH GUSTS BY 16/0600 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING NOON VIS MODERATE TO VERY POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 7/8 WITH GUSTS VEER SECTOR N 9 WITH GUSTS BY 16/0000 PROB OF FOG MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS NOON VIS VERY POOR TO MODERATE
GERLACHE STRAIT : NE 6/7 WITH GUSTS INCR NE 8 WITH GUSTS BY 15/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS MODERATE TO POOR
MARGARITA BAY : NE 6/7 WITH GUSTS INCR SECTOR E 8 GUST WITH 9 INTENSITY BY 15/2100 PROB OF MIST BLIZZARD PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE OCNL POOR
EREBUS Y TERROR GULF : SW 7/5 VEER NW 4/5 BY 15/1800 AFTERWARDS NW 8 WITH GUSTS BY 16/0300 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING EVENING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 6/8 WITH GUSTS INCR NW 9 WITH GUSTS BY 15/1800 AFTERWARDS SECTOR N 6/5 BY 16/0600 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR E 7/8 WITH GUSTS VEER SE 9 BY 15/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 5/7 WITH GUSTS VEER SE 7/8 WITH GUSTS BY 15/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE MORNING VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA N OF 66S: NW 9 WITH GUSTS BACK SECTOR W 9 WITH GUSTS BY 15/1800 AFTERWARDS SECTOR W 6 BY 16/0300 PROB OF FOG MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SE 5/7 WITH GUSTS VEER SECTOR S 5/6 WITH GUSTS BY 15/1800 AFTERWARDS SW 5/4 BY 16/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 6/7 WITH GUSTS VEER SE 7/8 WITH GUSTS BY 15/2100 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE=