1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-10, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 102: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 50S-60S 30W-40W FROM 10/0900
WARNING 101: LOW 978HPA AT 43S 26W MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM
SECTOR S WITH GUST BETWEEN 50S-55S 20W-30W
WARNING 100: LOW 978HPA AT 43S 26W MOV E DEEPENING PROVOKES WINDS FORCE 9 FROM
SW WITH GUST BETWEEN 40S-50S 20W-40W
WARNING 99: LOW 978HPA AT 43S 26W MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM
SECTOR S WITH GUST BETWEEN 45S-50S AND 20W-40W
WARNING 98: LOW 978HPA AT 43S 26W MOV E DEEPENING PROVOKES WINDS FORCE 9 FROM
SECTOR W WITH GUST BETWEEN 35S-40S AND 20W-30W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
SEA ICE AND ICEBERGS REPORT 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
HIGH 1026HPA 44S 53W MOV NE NC EXP 43S 46W BY 10/1200
CFNT AT 50S 75W 47S 66W 44S 66W MOV NE
WFNT AT 56S 69W 46S 70W 56S 67W MOV SE
LOW 978HPA 43S 26W MOV E DPN EXTENDS CFNT AT 45S 26W 39S 22W 34S 30W MOV NE
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-03-11
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 4/5 WITH GUSTS BACK SECTOR E 5/6 WITH GUSTS BY 10/1800
VIS GOOD TO MODERATE
OUTER RIO DE LA PLATA: NE 4/5 WITH GUSTS BACK SECTOR E 5/6 WITH GUSTS BY 10/1800
VIS GOOD TO MODERATE
URUGUAY SOUTH EAST COASTS: NE 4/5 WITH GUSTS BACK SECTOR E 5/6 WITH GUSTS BY
10/1800 VIS GOOD TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NE 6/5 WITH GUSTS BACK SECTOR N 5/4 WITH
GUSTS BY 10/0600 AFTERWARDS NE 5/6 WITH GUSTS BY 10/1800 VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/6 WITH GUSTS DECR 5/4 WITH
GUSTS BY 10/1200 AFTERWARDS NE 4/5 WITH GUSTS BY 10/1800 PROB OF ISOL STORMS
IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 7/6 GUST WITH 8 INTENSITY DECR
5/4 WITH GUSTS BY 10/1200 AFTERWARDS 5/6 WITH GUSTS BY 10/2100 PROB OF ISOL
STORMS IMPR STARTING EARLY MORNING VIS MODERATE OCNL POOR TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 7/6 GUST WITH 8 INTENSITY BACK
NW 5/4 BY 10/0300 AFTERWARDS SECTOR N 4/5 WITH GUSTS BY 10/1800 PROB OF ISOL
STORMS IMPR STARTING EARLY MORNING VIS MODERATE TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 7/6 GUST WITH 8 INTENSITY BACK
SECTOR W 5/4 WITH GUSTS BY 10/0600 AFTERWARDS SECTOR N 5/6 WITH GUSTS BY 10/1500
PROB OF SH RAIN IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 7/6 GUST WITH 8 INTENSITY BACK
SECTOR W 5/4 WITH GUSTS BY 10/0600 AFTERWARDS SECTOR N 5/6 WITH GUSTS BY 10/1500
PROB OF SH RAIN IMPR STARTING EARLY MORNING VIS POOR TO MODERATE.
ISLAS MALVINAS COASTS: SECTOR N 7/6 GUST WITH 8 INTENSITY BACK SECTOR W 4 WITH
GUSTS BY 10/1800 PROB OF SH RAIN IMPR STARTING EVENING VIS MODERATE OCNL POOR TO
GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR W 9/8 WITH GUSTS BACK SW 7/6
GUST WITH 8 INTENSITY BY 10/1500 DECR 5/4 BY 10/2100 PROB OF RAIN STORMS IMPR
STARTING EVENING VIS POOR TO MODERATE
E OF 30 - W OF 30W: SW 7 GUST WITH 8 INTENSITY BACK SECTOR S 5/4 WITH GUSTS BY
10/0600 PROB OF RAIN STORMS IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
OCNL POOR
REST OF THE AREA: SECTOR E 4/3 VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SW 9/8 WITH GUSTS
DECR 7/6 GUST WITH 8 INTENSITY BY 10/2100 PROB OF RAIN STORMS VIS VERY POOR TO
POOR
W OF 30 - N OF 45S: SW 9/8 WITH GUSTS DECR 7/6 GUST WITH 8 INTENSITY BY 10/0900
AFTERWARDS 5 WITH GUSTS BY 10/1800 PROB OF RAIN STORMS IMPR STARTING EARLY
MORNING VIS VERY POOR TO GOOD
E OF 30 - S OF 45S: SECTOR S 8 WITH GUSTS VEER SW 7/6 GUST WITH 8 INTENSITY BY
10/2100 PROB OF RAIN STORMS IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO
MODERATE
REST OF THE AREA: SECTOR S 8/7 WITH GUSTS VEER SW 7/6 GUST WITH 8 INTENSITY BY
10/0600 PROB OF RAIN STORMS IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 5/4 WITH GUSTS BACK
SECTOR W 4/5 WITH GUSTS BY 10/0600 VIS GOOD
REST OF THE AREA: SECTOR N 5/5 WITH GUSTS BACK NW 5 WITH GUSTS BY 10/2100 PROB
OF SH RAIN IMPR STARTING EVENING VIS MODERATE TO GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR S 8/7 WITH
GUSTS VEER SW 6 WITH GUSTS BY 10/2100 PROB OF ISOL RAIN VIS POOR TO MODERATE
W OF 30 - N OF 55S: SW 5/6 WITH GUSTS VEER SECTOR W 7/8 WITH GUSTS BY 10/0900
DECR 6/5 BY 10/2100 PROB OF ISOL RAIN VIS POOR OCNL MODERATE
E OF 30 - S OF 55S: SECTOR W 5 WITH GUSTS BACK SECTOR S 5/6 WITH GUSTS BY
10/0600 VEER SW 5/6 WITH GUSTS BY 10/2100 PROB OF ISOL RAIN DURING THE MORNING
VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS INCR 7/8 WITH GUSTS BY 10/0900
AFTERWARDS SW 5/4 WITH GUSTS BY 10/1800 PROB OF ISOL RAIN VIS POOR TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6/5 WITH GUSTS VEER
NW 4/5 WITH GUSTS BY 10/2100 PROB OF ISOL RAIN VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR W 5 WITH GUSTS VEER SECTOR N WITH GUSTS BY 10/0300
AFTERWARDS SECTOR W 4 WITH GUSTS BY 10/2100 PROB OF SH RAIN IMPR TOWARDS THE END
OF THE PERIOD VIS MODERATE TO GOOD
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 5 WITH GUSTS BACK NW 5/4 WITH GUSTS
BY 10/0900 PROB OF SH RAIN IMPR STARTING EVENING VIS MODERATE TO GOOD
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 10, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
312/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW IN 68S-75S 40W-30W UNTIL 11/0600
313/2026 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
314/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SW DEEPENING WILL PROVOKE WINDS FORCE 8 FROM NE WITH GUST INCR IN 60S-67S 90W-75W UNTIL 10/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1009HPA 67S 56W MOV NE WKN
TROUGH 63S 55W 64S 49W 64S 40W MOV NE WKN
LOW 976HPA 60S 90W MOV SE 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-03-11
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT E OF 60W: SECTOR W 3/4 VEER NE 4/5 BY 10/1500 PROB OF MIST PROB OFISOL DRIZZLE WORSENING DURING THE EVENING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NE 4/5 INCR NE 5/6 BY 10/0900 PROB OF MIST PROB OF RAIN WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS W OF 60W: NE 4/5 INCR SECTOR E 5 BY 10/0900 PROB OF MIST PROB OF RAIN WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 4/5 INCR NW 5/6 BY 10/1800 PROB OF MIST PROB OF RAIN WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
GERLACHE STRAIT : SECTOR E 3 INCR NW 5/6 BY 10/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
MARGARITA BAY : SECTOR E 3 BACK NE 4 PROB OF COASTAL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NE 3/4 VEER NW 5/7 WITH GUSTS BY 10/1200 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: NE 4/5 INCR SECTOR E 7 GUST WITH 8 INTENSITY BY 10/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 4/5 INCR SECTOR E 6/7 GUST WITH 8 INTENSITY BY 10/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO POOR
NORTHERN WEDDELL SEA N OF 64S: SW 6/5 WITH GUSTS DECR SECTOR S 4 BY 10/0900 PROB OF MIST PROB OFISOL RAIN IMPR DURING THE MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 6/7 GUST WITH 8 INTENSITY INCR SECTOR S 8 WITH GUSTS BY 10/0900 PROB OF FOG MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 6/7 GUST WITH 8 INTENSITY INCR SECTOR S 8 WITH GUSTS BY 10/0900 PROB OF FOG MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE=