1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-16, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 108: LOW 981HPA AT 50S 77W MOV E NOT CHANGE EXPECTED 50S 67W BY 17/0900
WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN GOLFO DE SAN JORGE COASTS
SOUTH PATAGONIA COASTS FROM 17/0900
WARNING 107: LOW 975HPA AT 57S 54W MOV SE NOT CHANGE PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 55S-60S 50W-60W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 981HPA 50S 77W MOV E NC EXP 50S 67W BY 17/0900 EXTENDS CFNT AT 50S 77W 41S
74W 34S 83W MOV E
LOW 975HPA 57S 54W MOV SE NC EXTENDS CFNT AT 60S 50W 56S 42W 49S 46W MOV E
ASOCIATED WITH OFNT AT 60S 50W 58S 58W 53S 56W
LOW 1005HPA 46S 49W MOV SE NC EXTENDS CFNT AT 46S 49W 39S 56W 36S 65W MOV NE
HIGH 1032HPA 48S 23W MOV E INTSF EXP 45S 15W BY 17/1200 EXTENDS RIDGE AT 48S 23W
58S 24W 60S 29W MOV E
RIDGE 47S 31W 41S 42W 34S 45W NOT MOV NC
LOW 996HPA 34S 33W NOT MOV NC EXTENDS OFNT AT 35S 28W 36S 34W 31S 36W
161400 UTC 1.SEA ICE LIMIT 7210S 02000W 7347S 02616W 6910S 03136W 6100S 03611W
6450S 03620W 6118S 04202W 6200S 04709W 6214S 05113W 6329S 05350W 6348S 06053W
6501S 06414W 6634S 06716W 2.ICEBERGS GREATER THAN 10NM A23K 5037S 03505W 10X7NM
A76C 5906S 03629W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4840S 03040W 9X7NM
ICEBERG1 5801S 03547W 3X2NM ICEBERG2 5928S 04900W 2X1NM ICEBERG3 4846S 03334W
3X2NM ICEBERG4 5232S 03330W 7X2NM ICEBERG5 4712S 03353W 3X1NM ICEBERG6 4844S
03149W 4X2NM ICEBERG7 4850S 03132W 4X1NM ICEBERG8 4848S 03105W 3X2NM ICEBERG9
4847S 03040W 2X2NM 4.ICEBERGS AREA A 4500S 02000W 7000S 02000W 6100S 04600W
4400S 04500W B 6200S 04500W 5500S 04500W 6600S 05900W 6000S 06000W C 6000S
06000W 6500S 05900W 6900S 06716W 6400S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-17
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4/3 BACK SECTOR S 4/5 WITH GUSTS BY 17/1200 PROB
OF HVY RAIN STORMS STARTING EVENING VIS GOOD TO POOR
OUTER RIO DE LA PLATA: SECTOR N 4/3 BACK SECTOR S 5/6 WITH GUSTS BY 17/1200 PROB
OF HVY RAIN STORMS STARTING EVENING VIS GOOD TO POOR
URUGUAY SOUTH EAST COASTS: NE 5/6 WITH GUSTS PROB OF HVY RAIN STORMS STARTING
THE END OF THE PERIOD VIS GOOD TO POOR
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 3/4 BACK SW 5/6 WITH GUSTS BY
17/1200 PROB OF HVY RAIN STORMS VIS POOR OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5 WITH GUSTS BACK SW 6/5
WITH GUSTS BY 17/0600 PROB OF HVY RAIN STORMS NXT SH VIS POOR OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W
6/7 WITH GUSTS BY 17/0600 PROB OF HVY RAIN STORMS NXT SH VIS GOOD TO POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5 WITH GUSTS BACK SECTOR W 7/8
WITH GUSTS BY 17/0300 PROB OF SH RAIN VIS GOOD TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W 7/8
WITH GUSTS BY 17/0300 PROB OF HVY SH RAIN VIS GOOD TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR E 3/5 WITH GUSTS PROB OF HVY RAIN FOG
AND MIST IN PATCHES DISSIPATING VIS MODERATE TO POOR
ISLAS MALVINAS COASTS: SECTOR N 5/6 WITH GUSTS PROB OF HVY RAIN STORMS TOWARDS
THE END OF THE PERIOD VIS GOOD TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR E 7/6 WITH GUSTS PROB OF SH
RAIN VIS POOR
E OF 50W: NE 4 VIS GOOD
REST OF THE AREA: SECTOR N 5/7 WITH GUSTS PROB OF RAIN STORMS STARTING THE END
OF THE PERIOD VIS MODERATE TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR E 5/4 PROB OF ISOL
RAIN VIS GOOD OCNL MODERATE
SE OF THE REGION: VRB 3 BACK SECTOR N 3/4 VIS GOOD
REST OF THE AREA: SECTOR N 6/5 WITH GUSTS PROB OF ISOL RAIN VIS GOOD OCNL
MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 6/5 WITH GUSTS PROB
OF ISOL RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR N 6/7 WITH GUSTS BACK SECTOR W 7 WITH GUSTS BY 17/1200
PROB OF HVY RAIN STORMS STARTING NIGTH VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: NW 7 WITH GUSTS BACK SECTOR W
5 WITH GUSTS PROB OF RAIN VIS POOR
REST OF THE AREA: NW 7 WITH GUSTS BACK SECTOR W 7/8 WITH GUSTS BY 17/0600 PROB
OF RAIN AND SNOW MIXTURE VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) NE OF THE REGION: NW 7/6 WITH GUSTS PROB
OF RAIN IMPR VIS POOR TO MODERATE
SE OF THE REGION: SECTOR N 7 WITH GUSTS BACK SECTOR W 7/8 WITH GUSTS BY 16/1800
PROB OF RAIN AND SNOW MIXTURE VIS POOR
NW OF THE REGION: SECTOR N 6/7 WITH GUSTS PROB OF ISOL RAIN VIS POOR TO
MODERATE
REST OF THE AREA: SECTOR W 8/7 WITH GUSTS BACK SECTOR E 6 WITH GUSTS PROB OF
RAIN AND SNOW MIXTURE IMPR VIS POOR TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6 WITH GUSTS VEER SECTOR E 6/7 WITH
GUSTS PROB OF RAIN IMPR VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 16, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
354/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 61S-65S 50W-35W UNTIL 17/0300
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 986HPA 63S 72W MOV SE DPN
LOW 979HPA 60S 53W MOV SE DPN
RIDGE 62S 30W 65S 40W 67S 45W MOV SE WKN
151400 UTC 1.SEA ICE LIMIT 7210S 02000W 7347S 02616W 6910S 03136W 6100S 03611W 6450S 03620W 6118S 04202W 6200S 04709W 6214S 05113W 6329S 05350W 6348S 06053W 6501S 06414W 6634S 06716W 2.ICEBERGS GREATER THAN 10NM A23K 5037S 03505W 10X7NM A76C 5904S 03651W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4843S 03046W 9X7NM ICEBERG1 5808S 03521W 3X2NM ICEBERG2 5919S 04850W 2X1NM ICEBERG3 4843S 03341W 3X2NM ICEBERG4 5232S 03336W 7X2NM ICEBERG5 4713S 03350W 3X1NM ICEBERG6 4842S 03344W 4X2NM ICEBERG7 4848S 03157W 4X1NM ICEBERG8 4845S 03208W 3X2NM ICEBERG9 4847S 03217W 2X1NM ICEBERG10 4848S 03126W 4X2NM ICEBERG11 4849S 03050W 2X2NM 4.ICEBERGS AREA A 4500S 02000W 7000S 02000W 6100S 04600W 4400S 04500W B 6200S 04500W 5500S 04500W 6600S 05900W 6000S 06000W C 6000S 06000W 6500S 05900W 6900S 06716W 6400S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-17
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 3/4 VEER NE 4/3 BY 16/1800 PROB OF MIST PROB OFISOL DRIZZLE RAIN IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR E 5/4 VEER SECTOR S 4 BY 16/1800 AFTERWARDS SE 5/6 WITH GUSTS BY 16/2100 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3/4 VEER NE 4/3 BY 16/1800 PROB OF MIST PROB OFISOL DRIZZLE RAIN IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR E 5/4 VEER SECTOR S 4 BY 16/1800 AFTERWARDS SE 5/6 WITH GUSTS BY 16/2100 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE TO POOR
GERLACHE STRAIT : SE 3/4 VEER SECTOR W 4 BY 17/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS MODERATE TO POOR
MARGARITA BAY : SE 4/3 BACK NE 3/4 BY 17/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SECTOR S 5 VEER SECTOR W 6/7 BY 16/1800 PROB OF MIST FOG PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 78 - N OF 66S: SECTOR S 6/5 WITH GUSTS DECR SECTOR S 5/4 BY 16/2100 PROB OF MIST PROB OFISOL DRIZZLE RAIN IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR S 3/4 VEER SW 5/4 BY 16/2100 AFTERWARDS VRB 3 BY 17/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 3/4 VEER NW 4/3 BY 16/1500 PROB OF MIST FOG PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EVENING VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA N OF 66S: NE 8 GUST WITH 9 INTENSITY BACK NW 7/8 WITH GUSTS BY 16/1800 AFTERWARDS SECTOR W 8 WITH GUSTS BY 17/0000 PROB OF MIST FOG PATCHES PROB OFMOD RAIN AND SNOW MIXTURE WORSENING DURING THE EVENING VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR N 4/5 VEER SECTOR E 5/6 WITH GUSTS BY 16/0900 AFTERWARDS SECTOR E 8 WITH GUSTS BY 16/1800 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS MODERATE TO VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 5/6 VEER SECTOR W 5/4 BY 16/1800 AFTERWARDS VRB 3 BY 17/0000 PROB OF FOG MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD=