1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-1, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 134: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR N WITH
GUST BETWEEN 50S-60S AND 30W-50W UNTIL 01/1500
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 DRAKE
AREA (55S- 60S AND 60W- 67W) BETWEEN 50S-60S AND 50W-60W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
311400 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 5915S 03630W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5124S 03302W 5X2NM ICEBERG2 4845S 03244W
3X1NM ICEBERG3 4805S 02955W 4X1NM ICEBERG4 4824S 02959W 3X2NM ICEBERG5 4727S
02918W 2X2NM ICEBERG6 4826S 03010W 9X7NM ICEBERG7 5002S 03424W 9X7NM ICEBERG8
5008S 03002W 3X1NM ICEBERG9 4514S 03419W 2X1NM 4.ICEBERGS AREA A 7200S 02000W
4200S 02000W 4300S 04000W 6200S 04000W B 4500S 04000W 6200S 04000W 5800S 05000W
6500S 05100W C 5800S 05000W 6500S 05100W 6300S 06716W 6900S 06716W
HIGH 1023HPA 36S 34W MOV E INTSF EXP 35S 30W BY 01/2100
LOW 966HPA 58S 61W MOV SE EXTENDS CFNT AT 57S 56W 50S 55W 41S 63W MOV NE
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-4-2
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 3/4 PROB OF FOG MIST NXT PROB OFHVY STORMS STARTING
EVENING VIS MODERATE TO POOR
OUTER RIO DE LA PLATA: SECTOR N 5/4 PROB OF ISOL STORMS NXT HVY STORMS STARTING
EVENING VIS MODERATE TO POOR
URUGUAY SOUTH EAST COASTS: SECTOR N 5/4 PROB OF FOG MIST IMPR STARTING EARLY
MORNING VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5/4 PROB OF HVY STORMS VIS
POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SE 5/4 PROB OF SH IMPR STARTING EARLY
MORNING VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): VRB 5/4 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 6/4 WITH GUSTS VIS MODERATE TO
GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 8 WITH GUSTS PROB OF SH VIS VERY
POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 8 WITH GUSTS PROB OF SH RAIN AND
SNOW MIXTURE VIS VERY POOR
ISLAS MALVINAS COASTS: SECTOR W 8 WITH GUSTS PROB OF SH STARTING EARLY MORNING
VIS VERY POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 5/4 VIS GOOD
REST OF THE AREA: SECTOR N 5 PROB OF STORMS STARTING EARLY MORNING VIS GOOD TO
MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 5/6 WITH GUSTS VIS
GOOD TO MODERATE
REST OF THE AREA: SECTOR W 5/7 GUST WITH 8 INTENSITY PROB OF RAIN STARTING
EARLY MORNING VIS MODERATE TO POOR OCNL VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 7 GUST WITH 8
INTENSITY PROB OF RAIN NXT HVY RAIN VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR N 7 GUST WITH 8 INTENSITY BACK SECTOR W 7 WITH GUSTS
BY 1/0300 PROB OF RAIN IMPR TOWARDS THE END OF THE PERIOD VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 7/6 WITH GUSTS BACK SECTOR
N 6/7 WITH GUSTS BY 1/1200 PROB OF RAIN SNOW FALL VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR N 7/8 WITH GUSTS BACK SECTOR W 7 GUST WITH 8 INTENSITY
BY 1/1500 PROB OF HVY RAIN IMPR STARTING EVENING VIS VERY POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR N 8 WITH GUSTS BACK
SECTOR W 7 GUST WITH 8 INTENSITY BY 1/0900 PROB OF HVY RAIN NXT RAIN VIS VERY
POOR TO POOR
REST OF THE AREA: SECTOR W 7/8 WITH GUSTS PROB OF SH NXT RAIN VIS VERY POOR TO
POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8/7 WITH GUSTS PROB OF RAIN VIS
VERY POOR TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 31, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
425/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA MOV S WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR E WITH GUST IN 69S-73S 90W-70W UNTIL 31/2100
426/2026 STRONG BARIC GRADIENT MARGARITA BAY MOV S WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 66S-69S 70W-65W UNTIL 31/1500
427/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 60S-64S 70W-50W FROM 31/1500 UNTIL 01/0600
428/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 60S-64S 59W-50W FROM 31/2100 UNTIL 01/1200
PART 2 GENERAL SYNOPSIS AT 09:00UTC
RIDGE 60S 40W 63S 43W MOV E WKN
LOW 959HPA 69S 81W MOV SE DPN
LOW 971HPA 60S 85W MOV SE DPN
LOW 990HPA 68S 54W MOV E WKN
301400 UTC 1.LIMITE DE HIELO MARINO 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.TEMPANOS MAYORES A 10MN A76C 5912S 03633W 16X7MN 3.TEMPANOS MENOR A 10MN TEMPANO1 5128S 03258W 5X2MN TEMPANO2 4845S 03244W 3X1MN TEMPANO3 4805S 02955W 4X1MN TEMPANO4 4824S 02959W 3X2MN TEMPANO5 4727S 02918W 2X2MN TEMPANO6 4826S 03016W 9X7MN TEMPANO7 5002S 03424W 9X7MN TEMPANO8 5008S 03002W 3X1MN TEMPANO9 4514S 034119W 2X1MN 4.AREA DE TEMPANOS A 7200S 02000W 4200S 02000W 4300S 04000W 6200S 04000W B 4500S 04000W 6200S 04000W 5800S 05000W 6500S 05100W C 5800S 05000W 6500S 05100W 6300S 06716W 6900S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-4-1
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR E 4/5 VEER NE 7/8 WITH GUSTS BY 31/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN WORSENING STARTING NOON VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NE 5/6 VEER SECTOR E 8 WITH GUSTS BY 31/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN WORSENING STARTING EVENING VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR E 4/5 WITH GUSTS VEER NE 7/8 WITH GUSTS BY 31/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN WORSENING STARTING NOON VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NE 5/6 VEER SECTOR E 8 WITH GUSTS BY 31/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN WORSENING STARTING EVENING VIS GOOD TO MODERATE OCNL POOR
GERLACHE STRAIT : NE 7 WITH GUSTS VEER SECTOR E 5/6 GUST WITH 8 INTENSITY BY 31/2100 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : SECTOR E 6/7 GUST WITH 8 INTENSITY INCR SECTOR E 8 WITH GUSTS BY 1/0000 PROB OF ISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NW 4/5 BACK SW 5/6 GUST WITH 8 INTENSITY BY 31/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS MODERATE TO VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: SECTOR W 4/5 VEER NW 5 BY 31/2100 PROB OF MIST PROB OFSCT SH SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR N 7 WITH GUSTS BACK NW 6/5 BY 31/1800 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 8 WITH GUSTS VEER SE 7 GUST WITH 8 INTENSITY BY 31/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
NORTHERN WEDDELL SEA N OF 65S: NW 3/4 VEER NE 5/7 GUST WITH 8 INTENSITY BY 31/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 3/4 BACK NE 4/5 BY 31/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SE 5/4 BY 31/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE=