1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 11, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
319/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW IN 68S-75S 35W-30W UNTIL 11/0600
320/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-68S 35W-30W UNTIL 11/1500
321/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-63S 82W-74W FROM 11/0600 UNTIL 11/1800
322/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF PROVOKES WINDS FORCE 8 UNTIL 11/0300
323/2026 STRONG BARIC GRADIENT GERLACHE STRAIT WILL PROVOKE WINDS FORCE 8 FROM NE IN 64S-66S 66W-63W FROM 11/0500 UNTIL 11/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
TROUGH 66S 59W 63S 56W 62S 52W MOV E DPN
RIDGE 66S 56W 63S 56W 62S 52W MOV E DPN
RIDGE 71S 53W 67S 48W 63S 42W MOV E WKN
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-03-12
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 5/6 INCR SECTOR N 7/8 BY 11/0300 BACK NW 6/7 BY 11/1500 PROB OF SCT MIST FOG PATCHES PROB OFISOL RAIN WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR OCNL VERY POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 4/5 INCR NW 6 BY 11/1200 PROB OF MIST FOG PATCHES PROB OFISOL RAIN WORSENING DURING THE EVENING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: NE 5/6 INCR SECTOR N 7/8 BY 11/0300 BACK NW 6/7 BY 11/1500 PROB OF SCT MIST FOG PATCHES PROB OFISOL RAIN WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR OCNL VERY POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 4/5 INCR NW 6 BY 11/1200 PROB OF MIST FOG PATCHES PROB OFISOL RAIN WORSENING DURING THE EVENING VIS MODERATE TO POOR
GERLACHE STRAIT : NE 7/8 DECR SECTOR N 5/4 BY 11/0300 INCR NE 8 BY 11/1500 PROB OF COASTAL SNOW FALL PROB OFISOL RAIN WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : NE 7 DECR NE 5 BY 11/1200 PROB OF COASTAL SNOW FALL WORSENING DURING THE NIGTH VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NE 5/6 WITH GUSTS DECR VRB 3 BY 11/0600 INCR SECTOR N 7/8 BY 11/1800 PROB OF FOG MIST WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: SECTOR N 5/6 INCR NE 8 BY 11/1200 AFTERWARDS NW 4 BY 11/2100 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 6/7 GUST WITH 8 INTENSITY DECR VRB 3 BY 11/0000 PROB OF MIST IMPR DURING THE MORNING VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 8/7 DECR NE 5 BY 11/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA W OF 34W: VRB 3 INCR SECTOR W 5/6 BY 11/1200 VEER NW 4 BY 11/1800 PROB OF MIST WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 8 WITH GUSTS VEER SW 8 WITH GUSTS BY 11/0300 DECR SECTOR W 4/5 BY 11/1800 PROB OF FOG MIST IMPR DURING THE EVENING VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 8 WITH GUSTS DECR SW 7 BY 11/0900 PROB OF FOG MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE NIGTH VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-11, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1026HPA 41S 43W MOV E NC
CFNT AT 54S 20W 53S 28W 52S 36W MOV NE
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-03-12
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 5/6 WITH GUSTS VEER SECTOR E 6/7 GUST WITH 8 INTENSITY
BY 11/1500 VIS GOOD TO MODERATE
OUTER RIO DE LA PLATA: NE 5/6 WITH GUSTS VEER SECTOR E 6/7 GUST WITH 8 INTENSITY
BY 11/1500 VIS GOOD TO MODERATE
URUGUAY SOUTH EAST COASTS: NE 6/5 VEER SECTOR E 5/4 WITH GUSTS BY 11/0600 INCR
5/6 WITH GUSTS BY 11/2100 PROB OF SH RAIN STARTING EVENING VIS GOOD TO
MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NE 6/5 WITH GUSTS BACK SECTOR N 5 WITH
GUSTS BY 11/0600 VEER NE 5/6 WITH GUSTS BY 11/1500 VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): NE 6/5 WITH GUSTS BACK SECTOR N 5
WITH GUSTS BY 11/0600 VEER NE 5/6 WITH GUSTS BY 11/1500 VIS GOOD TO MODERATE.
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 7/6 GUST WITH 8 INTENSITY DECR
6/5 WITH GUSTS BY 11/0900 INCR 6/7 GUST WITH 8 INTENSITY BY 11/1800 PROB OF RAIN
STORMS STARTING EVENING VIS MODERATE OCNL POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 WITH GUSTS DECR 5 WITH
GUSTS BY 11/1800 UNSTABLE TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): NE 4/5 WITH GUSTS BACK SECTOR N 5/6 WITH
GUSTS BY 11/0600 BACK VRB 4/3 BY 11/1800 PROB OF SH RAIN TOWARDS THE END OF THE
PERIOD VIS MODERATE OCNL GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 6/7 GUST WITH 8 INTENSITY BACK VRB
4/3 BY 11/1500 PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL
POOR
ISLAS MALVINAS COASTS: SECTOR N 4/5 WITH GUSTS INCR 5/6 WITH GUSTS BY 11/1200
PROB OF SH RAIN TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR S 5/4 WITH GUSTS BACK SECTOR
E 4 BY 11/2100 UNSTABLE DURING THE MORNING VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR E 4 WITH GUSTS BACK NE 4/5 WITH GUSTS BY 11/1200 PROB
OF SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SW 7/6 GUST WITH 8 INTENSITY
DECR 5/4 WITH GUSTS BY 11/1800 PROB OF SH RAIN IMPR STARTING EVENING VIS
MODERATE TO GOOD
REST OF THE AREA: SW 6/5 WITH GUSTS DECR 5/4 BY 11/0900 VEER NW 4/5 WITH GUSTS
BY 11/1800 VIS GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR W 4 VEER NW 4/5 WITH
GUSTS BY 11/0600 PROB OF ISOL RAIN IMPR STARTING EVENING VIS GOOD TO MODERATE
REST OF THE AREA: NW 5 WITH GUSTS VEER SECTOR N 5/6 WITH GUSTS BY 11/0600 PROB
OF RAIN STORMS TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 6/5 WITH GUSTS VEER SECTOR
W 5/6 WITH GUSTS BY 11/1500 PROB OF ISOL RAIN VIS MODERATE OCNL GOOD
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE OCNL
GOOD
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: NW 4 WITH GUSTS PROB OF ISOL
RAIN IMPR STARTING EVENING VIS GOOD TO MODERATE
REST OF THE AREA: SECTOR N 4 INCR 5/6 WITH GUSTS BY 11/0600 PROB OF SH RAIN
IMPR STARTING EARLY MORNING VIS MODERATE OCNL GOOD
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 6/7 GUST WITH 8 INTENSITY BACK NW
5/4 WITH GUSTS BY 11/1800 UNSTABLE DURING THE MORNING VIS MODERATE OCNL POOR TO
GOOD
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