1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-2, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 135: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST VEER NW BY 2/1500 IN SOUTH WEST AREA (50S- 60S AND 40W- 60W)
WARNING 133: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS UNTIL
02/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
SEA ICE AND ICEBERGS REPORT 011400 UTC
1.SEA ICE LIMIT
7052S 02000W 6617S 03023W 6130S 03147W 6244S 03258W 6135S 04305W 6245S 05035W
6257S 05513W 6434S 05528W 6408S 06334W 6525S 06541W 6558S 06643W 6610S 06717W
2.ICEBERGS GREATER THAN 10NM
A76C 5917S 03630W 16X7NM
3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 5121S 03301W 5X2NM
ICEBERG2 4845S 03244W 3X1NM
ICEBERG3 4745S 02954W 4X1NM
ICEBERG4 4851S 02959W 3X2NM
ICEBERG5 4738S 02947W 2X2NM
ICEBERG6 4823S 03001W 9X7NM
ICEBERG7 5003S 03419W 9X7NM
ICEBERG8 5014S 03001W 3X1NM
ICEBERG9 4514S 03419W 2X1NM
4.ICEBERGS AREA
A 7130S 02000W 4130S 02000W 4300S 03500W 6130S 03500W
B 6130S 03500W 4300S 03500W 5600S 05000W 6300S 05000W
C 5600S 05000W 6300S 05000W 6500S 06716W 6900S 06716W
HIGH 1014HPA PENINSULA DE VALDES COASTS MOV E INTSF EXP 44S 42W BY 02/1800
CFNT AT 54S 23W 49S 25W 46S 38W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-04-3
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 PROB OF SH STARTING EARLY MORNING PROB OF MIST
TOWARDS EARLY MORNING VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: VRB 3 PROB OF ISOL SH STORMS SPELLS OF GOOD WEATHER PROB
OF MIST DURING THE EARLY MORNING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: VRB 3 VEER SECTOR S 3 BY 2/1500 PROB OF ISOL SH MIST
STARTING EARLY MORNING VIS MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR E 4 PROB OF ISOL RAIN STORMS IMPR
STARTING EVENING VIS MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 4 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): NW 6/7 GUST WITH 8 INTENSITY VIS
MODERATE TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): NW 8/7 WITH GUSTS PROB OF ISOL RAIN
STARTING EVENING VIS POOR TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 8/6 WITH GUSTS BACK SW 5 BY 2/1800
PROB OF ISOL RAIN VIS POOR TO MODERATE
ISLAS MALVINAS COASTS: SECTOR W 8 WITH GUSTS VEER NW 7 GUST WITH 8 INTENSITY BY
2/1500 PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: NW 4/5 WITH GUSTS PROB OF RAIN
STARTING EVENING VIS GOOD TO MODERATE
W OF 40 - E OF 50W: SECTOR N 4 DECR VRB 3 BY 2/1500 PROB OF HVY SH RAIN VIS
POOR
REST OF THE AREA: VRB 3 INCR SE 4 BY 2/1200 PROB OF ISOL SH STORMS VIS
MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 6 WITH GUSTS PROB
OF SH RAIN VIS POOR TO MODERATE
E OF 30 - S OF 45S: SECTOR W 6 WITH GUSTS INCR 7 GUST WITH 8 INTENSITY BY
2/1500 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF ISOL RAIN IMPR VIS MODERATE
TO GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR S 4 BACK SECTOR N
PROB OF SH IMPR TOWARDS MORNING VIS MODERATE
REST OF THE AREA: SECTOR W 6 WITH GUSTS VEER NW 7 GUST WITH 8 INTENSITY BY
2/1500 VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 6/7 GUST WITH 8 INTENSITY PROB
OF SH OF SNOW VIS MODERATE TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 8 WITH GUSTS VEER NW WITH
GUSTS BY 2/1200 PROB OF SH RAIN RAIN AND SNOW MIXTURE VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7 GUST WITH 8 INTENSITY BACK SW 6
WITH GUSTS BY 2/1500 PROB OF SH RAIN AND SNOW MIXTURE VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 02, APRIL 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
438/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV SE WEAKENING PROVOKES WINDS FORCE 8 FROM SE GUST WITH 9 INTENSITY IN 65S-67S 55W-50W UNTIL 02/0600
439/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 64S-67S 50W-30W UNTIL 02/1200
440/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SE GUST WITH 9 INTENSITY IN 61S-64S 59W-54W FROM 02/0600 UNTIL 03/0600
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 958HPA 63S 53W MOV SE DPN
LOW 977HPA 67S 80W MOV E WKN
LOW 980HPA 67S 87W MOV E WKN
LOW 969HPA MOV E WKN
011400 UTC 1.SEA ICE LIMIT 7052S 02000W 6617S 03023W 6130S 03147W 6244S 03258W 6135S 04305W 6245S 05035W 6257S 05513W 6434S 05528W 6408S 06334W 6525S 06541W 6558S 06643W 6610S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5917S 03630W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5121S 03301W 5X2NM ICEBERG2 4845S 03244W 3X1NM ICEBERG3 4745S 02954W 4X1NM ICEBERG4 4851S 02959W 3X2NM ICEBERG5 4738S 02947W 2X2NM ICEBERG6 4823S 03001W 9X7NM ICEBERG7 5003S 03419W 9X7NM ICEBERG8 5014S 03001W 3X1NM ICEBERG9 4514S 03419W 2X1NM 4.ICEBERGS AREA A 7130S 02000W 4130S 02000W 4300S 03500W 6130S 03500W B 6130S 03500W 4300S 03500W 5600S 05000W 6300S 05000W C 5600S 05000W 6300S 05000W 6500S 06716W 6900S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-04-3
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 BACK SECTOR S 5 BY 2/1200 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 10 GUST WITH 8 INTENSITY BACK SECTOR S 8 WITH GUSTS BY 2/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 BACK SECTOR S 5 BY 2/1200 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY BACK SECTOR S 8 WITH GUSTS BY 2/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
GERLACHE STRAIT : SECTOR E 7 WITH GUSTS DECR SECTOR E 6/5 WITH GUSTS BY 2/0600 AFTERWARDS NE 4/3 BY 2/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR E 9 WITH GUSTS DECR NE 6/5 WITH GUSTS BY 2/0600 AFTERWARDS NE 4/3 BY 2/1200 VIS GOOD
EREBUS Y TERROR GULF : SE 7/8 WITH GUSTS INCR SW 9 WITH GUSTS BY 2/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: SW 4/5 VEER SECTOR W 4 BY 2/1500 PROB OF MIST PROB OFSCT SH IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SE 3/4 VEER SECTOR S 4/3 BY 2/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SE 4/3 VEER SECTOR S 4/3 BY 2/0600 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA N OF 67S: SECTOR E 9 WITH GUSTS DECR SECTOR E 8/7 WITH GUSTS BY 2/1500 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 5/6 BACK SE 4 BY 2/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 3/4 BACK SECTOR E 4 BY 2/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD=