1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 10, MARCH 2026.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 99: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH GUST
BETWEEN 49S-50S AND 20W-30W UNTIL 10/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1024HPA 42S 50W MOV E INTSF EXP 40S 40W BY 11/1200
OFNT AT 50S 20W 45S 23W 41S 22W MOV E NC
101400 UTC 1.SEA ICE LIMIT 7247S 02000W 7041S 03010W 7505S 03024W 6538S 03339W
7715S 03358W 6114S 03418W 7250S 03550W 6119S 04405W 6201S 05030W 6415S 05450W
6310S 05719W 6641S 06716W 2.ICEBERGS GREATER THAN 10NM A23K 5104S 03502W 10X7NM
A76C 5908S 03705W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4901S 03246W 9X7NM
ICEBERG1 5748S 03559W 3X2NM ICEBERG2 5901S 04922W 2X1NM ICEBERG3 4841S 03355W
3X2NM ICEBERG4 5251S 03344W 7X2NM ICEBERG5 4713S 03350W 3X1MN ICEBERG6 4854S
03329W 4X2MN ICEBERG7 4852S 03323W 4X1MN ICEBERG8 4854S 03313W 3X2MN ICEBERG9
4903S 03303W 2X1MN 4.ICEBERGS AREA A 4400S 02000W 7300S 02000W 6200S 04500W
4400S 04500W B 6200S 04500W 5800S 05500W 6500S 05500W 5700S 04500W C 5800S
05500W 6500S 05500W 6900S 06716W 6300S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-11
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 4 INCR 5 WITH GUSTS VIS GOOD
OUTER RIO DE LA PLATA: NE 5 WITH GUSTS LOW PROB OF DRIZZLE DURING THE MORNING
VIS MODERATE OCNL GOOD
URUGUAY SOUTH EAST COASTS: VRB 4 BACK SECTOR E LOW PROB OF DRIZZLE STARTING
EARLY MORNING VIS MODERATE OCNL GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/5 WITH GUSTS LOW PROB OF ISOL
RAIN IMPR DURING THE EVENING VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4/5 WITH GUSTS PROB OF MIST
DRIZZLE DURING THE MORNING VIS MODERATE OCNL GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS LOW PROB OF
ISOL RAIN DURING THE MORNING NEXT IMPR TOWARDS THE END OF THE PERIOD VIS
MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 4/6 WITH GUSTS LOW PROB OF SH
TOWARDS THE END OF THE PERIOD VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): VRB 4 VEER SECTOR N 5 WITH GUSTS VIS GOOD
OCNL MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4 VEER SECTOR N 5/6 WITH GUSTS BACK
SECTOR W 5 WITH GUSTS PROB OF MIST TOWARDS MORNING VIS GOOD OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR N 7 WITH GUSTS DECR 5 WITH GUSTS PROB OF SH RAIN
IMPR DURING THE EVENING VIS MODERATE TO GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) W OF 40W: SECTOR S 7/5 WITH GUSTS PROB OF
ISOL INTERMITTENT SH RAIN VIS POOR TO MODERATE
NORTH AREA (35S- 40S AND 20W- 55W) REST OF THE AREA: SECTOR W 4 PROB OF MIST
DRIZZLE SPELLS OF GOOD WEATHER VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) W OF 30W: SECTOR S 8 WITH GUSTS DECR 6
BY 10/0000 PROB OF ISOL SH RAIN SPELLS OF GOOD WEATHER VIS POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) REST OF THE AREA: SECTOR S 6/5 WITH
GUSTS PROB OF MIST DRIZZLE VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR N 6/5 BACK SECTOR W PROB OF
ISOL SH MIST RAIN VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR S 7/5 WITH GUSTS PROB
OF ISOL SH RAIN IMPR STARTING NIGTH VIS POOR TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) REST OF THE AREA: SECTOR S 6/5 VEER
SECTOR W LOW PROB OF ISOL RAIN DURING THE MORNING PROB OFISOL RAIN STARTING
EARLY MORNING VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50W: SECTOR N 6/5 PROB OF SH RAIN
NEXT IMPR DURING THE EVENING VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) REST OF THE AREA: SECTOR W 6/5 WITH
GUSTS LOW PROB OF ISOL INTERMITTENT RAIN VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5 WITH GUSTS VEER SECTOR N 7 WITH
GUSTS LOW PROB OF ISOL RAIN DURING THE MORNING WORSENING STARTING EARLY MORNING
ISOL RAIN VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 10, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
315/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW IN 68S-75S 40W-30W UNTIL 11/0600
316/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-68S 40W-30W UNTIL 11/2300
317/2026 STRONG BARIC GRADIENT ON NORTHER BELLINGSHAUSEN SEA MOV SW DEEPENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST INCR IN 60S-67S 90W-75W UNTIL 10/2100
318/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF WILL PROVOKE WINDS FORCE 8 IN 62S-65S 57W-54W FROM 10/1500 UNTIL 11/0300
PART 2 GENERAL SYNOPSIS AT 09:00UTC
TROUGH 64S 89W 63S 77W 62S 67W MOV SE WKN EXTENDS WFNT AT
RIDGE 71S 51W 67S 51W 63S 49W MOV E WKN
TROUGH 73S 56W 71S 59W 68S 56W MOV E DPN
091400 UTC 1.SEA ICE LIMIT 7244S 02000W 7204S 02813W 6128S 03315W 6122S 03708W 6131S 04044W 6115S 04507W 6114S 04616W 6218S 04726W 6314S 05716W 6438S 06242W 6640S 06716W 2.ICEBERGS GREATER THAN 10NM A23K 5105S 03508W 10X7NM A76C 5910S 03705W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4857S 03327W 9X7NM ICEBERG1 5752S 03550W 3X2NM ICEBERG2 5904S 04932W 3X2NM ICEBERG3 4838S 03400W 3X2NM ICEBERG4 5303S 03336W 7X2NM ICEBERG5 4720S 03335W 3X1MN 4.ICEBERGS AREA A 7303S 02000W 4600S 02000W 4400S 03000W 4500S 04300W 6200S 04300W B 6200S 04300W 5700S 04300W 5800S 05500W 6100S 05700W 6500S 05700W C 6500S 05700W 6100S 05700W 6100S 06200W 6500S 06716W 6644S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-11
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 5/6 INCR SECTOR N 7/8 BY 11/0300 PROB OF MIST PROB OFISOL RAIN WORSENING DURING THE NIGTH VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: VRB 3 INCR SECTOR N 4/5 BY 10/2100 BACK 5/6 BY 11/0600 PROB OF ISOL RAIN WORSENING DURING THE NIGTH VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NE 5/6 INCR SECTOR N 7/8 BY 11/0300 PROB OF MIST PROB OFISOL RAIN WORSENING DURING THE NIGTH VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: VRB 3 INCR SECTOR N 4/5 BY 10/2100 BACK SECTOR W 5/6 BY 11/0600 PROB OF ISOL RAIN WORSENING DURING THE NIGTH VIS GOOD TO MODERATE
GERLACHE STRAIT : NE 5/6 INCR NE 7/8 BY 10/1500 DECR SECTOR N 5/4 BY 11/0300 PROB OF COASTAL SNOW FALL PROB OFISOL RAIN WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : NE 5/4 INCR NE 7/8 BY 11/0300 PROB OF COASTAL SNOW FALL WORSENING DURING THE NIGTH VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NE 5/6 WITH GUSTS BACK NW BY 10/2100 PROB OF FOG MIST WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: NE 7/8 WITH GUSTS VEER SECTOR E 8 GUST WITH 9 INTENSITY BY 10/1200 DECR SECTOR N 5 BY 10/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER STARTING EVENING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR E 6/7 GUST WITH 8 INTENSITY DECR VRB 3 BY 11/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 6/7 GUST WITH 8 INTENSITY DECR SECTOR N 6/5 BY 10/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE
NORTHERN WEDDELL SEA W OF 64W: SECTOR S 4 DECR VRB 3 INCR NE 5/6 BY 11/0300 PROB OF MIST PROB OFISOL RAIN IMPR DURING THE EVENING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 8 WITH GUSTS VEER SW 8 WITH GUSTS BY 11/0300 PROB OF FOG MIST IMPR DURING THE MORNING VIS GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 8 WITH GUSTS DECR SW 10 BY 11/0900 PROB OF FOG MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE NIGTH VIS MODERATE TO GOOD=