1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 06, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1133/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-64S 50W-35W UNTIL 06/0600
1134/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-64S 70W-55W UNTIL 06/1500
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 966HPA 63S 38W MOV E DPN
LOW 977HPA 68S 70W MOV E DPN EXTENDS CFNT AT 68S 70W 64S 66W 60S 67W MOV E
RIDGE 60S 57W 62S 55W 65S 54W MOV E WKN
051400 UTC 1.SEA ICE LIMIT 5524S 02000W 5401S 02618W 5330S 03217W 5638S 03757W 5756S 04317W 5954S 04813W 6014S 05247W 6159S 05655W 6047S 06032W 6110S 06336W 6118S 06558W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5808S 04743W 28X25NM D33B 5901S 05122W 21X12NM A76C 5316S 02652W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D33C 6151S 05409W 9X5NM ICEBERG1 5851S 04848W 5X3NM ICEBERG2 6029S 05225W 5X3NM ICEBERG3 6005S 05137W 6X4NM ICEBERG4 5842S 04919W 2X1NM ICEBERG5 5902S 04816W 2X1NM ICEBERG6 6020S 05128W 2X1NM 4.ICEBERGS AREA A5626S 02000W 4900S 02000W 5400S 04000W 5817S 4000S B5817S 04000W 5501S 04000W 5757S 04656W 6102S 6716S 6923S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-7
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 7/8 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 6/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 7 WITH GUSTS INCR SECTOR W 8 WITH GUSTS BY 6/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 7/8 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 6/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 7 WITH GUSTS INCR SECTOR S 8 WITH GUSTS BY 6/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
GERLACHE STRAIT : NE 3/4 BACK SW 4/5 BY 6/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : SECTOR N 4/5 WITH GUSTS VEER NE 5/6 BY 6/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE OCNL GOOD
EREBUS Y TERROR GULF : NW 3/4 BACK SW 4 BY 05/0900 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 7/8 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 6/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 WITH GUSTS BACK SW 5 WITH GUSTS BY 6/0900 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 3/4 BACK SECTOR S 5/6 BY 6/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SW 8 WITH GUSTS BACK SECTOR S 5/4 WITH GUSTS BY 6/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 VEER SW 5/6 BY 6/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 3/4 VEER SE 4/3 BY 05/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-6, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 409: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) UNTIL 06/1200
WARNING 408: LOW 990HPA AT 42S 32W MOV NE WEAKENING WILL PROVOKE WINDS FORCE 8
FROM SW WITH GUST BETWEEN 35S-40S 20W-30W FROM 06/2100
WARNING 407: LOW 990HPA AT 42S 32W MOV NE WEAKENING PROVOKES WINDS FORCE 8
AROUND ITSELF WITH GUST BETWEEN 40S-45S 20W-40W
WARNING 406: STRONG BARIC GRADIENT MOV NE PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 55S-60S AND 20W-60W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 990HPA 42S 32W MOV NE WKN EXTENDS CFNT AT 42S 32W 35S 43W 35S 56W MOV NE
HIGH 1035HPA 41S 64W MOV NE
CFNT AT 59S 39W 53S 45W 51S 52W MOV NE
051400 UTC 1.SEA ICE LIMIT 5524S 02000W 5401S 02618W 5330S 03217W 5638S 03757W
5756S 04317W 5954S 04813W 6014S 05247W 6159S 05655W 6047S 06032W 6110S 06336W
6118S 06558W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5808S 04743W 28X25NM
D33B 5901S 05122W 21X12NM A76C 5316S 02652W 17X6NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6151S 05409W 9X5NM ICEBERG1 5851S 04848W 5X3NM ICEBERG2 6029S 05225W 5X3NM
ICEBERG3 6005S 05137W 6X4NM ICEBERG4 5842S 04919W 2X1NM ICEBERG5 5902S 04816W
2X1NM ICEBERG6 6020S 05128W 2X1NM 4.ICEBERGS AREA A5626S 02000W 4900S 02000W
5400S 04000W 5817S 4000S B5817S 04000W 5501S 04000W 5757S 04656W 6102S 6716S
6923S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-7
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 6/5 WITH GUSTS BACK SECTOR E 5/4 BY 6/1500 PROB
OF SH TOWARDS NIGTH VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SECTOR S 6/5 WITH GUSTS BACK SE 4/3 BY 6/1800 PROB OF SH
IMPR STARTING EVENING VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SW 7/6 GUST WITH 8 INTENSITY BACK SECTOR S 6/5 WITH
GUSTS BY 6/0900 DECR 3 BY 6/1800 PROB OF SH RAIN IMPR STARTING EVENING VIS
MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 6/5 WITH GUSTS BACK VRB 4/3 BY
6/1800 PROB OF SH RAIN IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 4/3 BACK SECTOR N 4/5 WITH
GUSTS BY 6/2100 PROB OF RAIN SNOW FALL DURING THE EARLY MORNING VIS MODERATE TO
GOOD
PENINSULA DE VALDES COASTS(41S - 45S): VRB 3/4 BACK NW 5 WITH GUSTS BY 6/1200
VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 4/5 WITH GUSTS VEER NW 4/3 BY
6/2100 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5/6 WITH GUSTS INCR 7/6 GUST WITH
8 INTENSITY BY 6/2100 VIS GOOD TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF
RAIN SNOW FALL VIS POOR OCNL POOR
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS PROB OF RAIN SNOW FALL IMPR
STARTING EVENING VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR W 6/7 GUST WITH 8 INTENSITY
BACK SW 7/8 WITH GUSTS BY 6/2100 PROB OF SH RAIN VIS MODERATE OCNL POOR
E OF 40 - W OF 30W: SW 7/6 GUST WITH 8 INTENSITY PROB OF RAIN STORMS VIS
MODERATE OCNL POOR
REST OF THE AREA: SECTOR S 6/5 WITH GUSTS VEER SW 5/4 WITH GUSTS BY 6/2100 PROB
OF SH RAIN IMPR STARTING EVENING VIS MODERATE TO GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45 - E OF 30W: SECTOR W 7/8 WITH
GUSTS VEER SECTOR S 8/7 WITH GUSTS BY 6/1200 PROB OF RAIN STORMS VIS POOR
W OF 30 - N OF 45S: SECTOR S 8/7 WITH GUSTS VEER SW 6 WITH GUSTS BY 6/2100 PROB
OF RAIN STORMS IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
E OF 30 - S OF 45S: SECTOR S 7/6 GUST WITH 8 INTENSITY VEER SECTOR W 6/7 GUST
WITH 8 INTENSITY BY 6/2100 PROB OF RAIN STORMS IMPR STARTING EVENING VIS POOR
OCNL MODERATE
REST OF THE AREA: SECTOR S 6/5 WITH GUSTS VEER SECTOR W 6/7 GUST WITH 8
INTENSITY BY 6/1200 PROB OF ISOL RAIN SNOW FALL VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) S OF 45S: SECTOR S 5/6 WITH GUSTS VEER
SECTOR W 6/7 GUST WITH 8 INTENSITY BY 6/0300 PROB OF ISOL RAIN SNOW FALL VIS
MODERATE
REST OF THE AREA: SECTOR S 6/5 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY
6/0900 PROB OF SH RAIN IMPR STARTING EVENING VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR S 5/6 WITH GUSTS VEER
NW 6/7 GUST WITH 8 INTENSITY BY 6/0300 PROB OF ISOL SNOW FALL VIS MODERATE OCNL
POOR
REST OF THE AREA: NW 7/8 WITH GUSTS BACK SECTOR W 8/7 WITH GUSTS BY 6/0600 BACK
SW 5 WITH GUSTS BY 6/1800 PROB OF ISOL SNOW FALL VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) S OF 55S: SECTOR W 8/7 WITH GUSTS PROB
OF ISOL RAIN SNOW FALL VIS POOR
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF ISOL RAIN SNOW
FALL VIS POOR OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8/7 WITH GUSTS DECR 7/6 GUST WITH 8
INTENSITY BY 6/1200 PROB OF ISOL RAIN SNOW FALL VIS POOR
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