1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-8, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 413: LOW 966HPA AT 57S 39W MOV SE DEEPENING EXPECTED 58S 20W BY 09/0000
PROVOKES WINDS FORCE 8 AROUND ITSELF WITH GUST IN SOUTH EAST AREA (50S- 60S AND
20W- 40W)
WARNING 412: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN CENTRAL WEST AREA (40S- 50S AND 40W- 60W)
WARNING 411: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 9 FROM SECTOR W WITH
GUST BETWEEN 45S-60S AND 40W-60W UNTIL 08/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
071400 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 5749S 04744W 28X25NM
D33B 5849S 05058W 21X12NM A76C 5338S 02618W 17X6NM 3.ICEBERGS SMALLER THAN 10NM
D32 5723S 03757W 9X6NM D33C 6139S 05333W 9X5NM ICEBERG1 5921S 04700W 5X3NM
ICEBERG2 6017S 05234W 5X3NM ICEBERG3 5917S 05050W 6X4NM ICEBERG4 5951S 05008W
2X1NM 4.ICEBERGS AREA A5626S 02000W 4900S 02000W 5400S 04000W 5817S 4000S B5817S
04000W 5501S 04000W 5757S 04656W 6102S 6716W 6923S 06716W
LOW 966HPA 57S 39W MOV SE DPN EXP 58S 20W BY 09/0000 EXTENDS CFNT AT MOV E
ASOCIATED WITH OFNT AT 59S 40W 59S 48W 57S 50W
RIDGE 39S 56W 43S 60W 46S 63W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-9
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR N 5/4 WITH GUSTS VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR E 4 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5/6 WITH GUSTS VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W
5 BY 8/2100 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6 WITH GUSTS BACK SECTOR W 6/5
WITH GUSTS BY 8/0900 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 4 BACK SW 6/5 WITH GUSTS BY
8/0900 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S) N OF 51S: VRB 3/4 PROB OF MIST DURING THE
MORNING VIS GOOD OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR W 5/6 WITH GUSTS
VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): SW 7 GUST WITH 8 INTENSITY VEER W 6 WITH
GUSTS LOW PROB OF ISOL RAIN STARTING EARLY MORNING VIS POOR OCNL VERY POOR TO
MODERATE
ISLAS MALVINAS COASTS: SW 7 GUST WITH 8 INTENSITY VEER W 6 WITH GUSTS LOW PROB
OF ISOL SH RAIN VIS POOR OCNL VERY POOR TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 6 GUST WITH 8 INTENSITY
PROB OF ISOL RAIN VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS VEER SECTOR N BY 08/2100 PROB OF ISOL
RAIN VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 7 GUST WITH 8
INTENSITY INCR 8 WITH GUSTS BY 08/0900 PROB OF RAIN AND SNOW MIXTURE VIS VERY
POOR TO POOR
REST OF THE AREA: SECTOR W 8 WITH GUSTS DECR 7/6 WITH GUSTS BY 08/2300 PROB OF
RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR W 7/6 GUST
WITH 8 INTENSITY LOW PROB OF ISOL RAIN VIS POOR OCNL VERY POOR TO MODERATE
E OF 50 - S OF 45S: SECTOR W 8 WITH GUSTS DECR 7/6 BY 08/1800 PROB OF RAIN AND
SNOW MIXTURE VIS VERY POOR TO POOR OCNL MODERATE
REST OF THE AREA: SECTOR W 7/6 GUST WITH 8 INTENSITY VEER SECTOR N BY 08/1200
LOW PROB OF ISOL RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR W 6/7 GUST
WITH 8 INTENSITY INCR 8 WITH GUSTS BY 08/1200 BACK SW BY 08/2100 PROB OF RAIN
AND SNOW MIXTURE VIS VERY POOR TO POOR
E OF 30 - S OF 55S: SECTOR W 4 VEER SECTOR N 6 WITH GUSTS BY 08/0600 VEER
SECTOR S 8 WITH GUSTS BY 08/1500 PROB OF SNOW FALL VIS VERY POOR TO POOR
W OF 30 - N OF 55S: SECTOR W 8 WITH GUSTS BACK SW BY 08/1200 DECR 7 BY 08/2300
PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 6/7 GUST WITH 8 INTENSITY INCR 8 WITH GUSTS BY
08/0900 DECR 7 BY 08/2100 PROB OF SNOW FALL VIS VERY POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: VRB 9 WITH GUSTS DECR 7/6 WITH
GUSTS BY 08/1500 VEER W PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR OCNL
MODERATE
REST OF THE AREA: SECTOR S 7/6 GUST WITH 8 INTENSITY VEER SECTOR W 7 GUST WITH
8 INTENSITY BY 08/1200 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 7 GUST WITH 8 INTENSITY TEMPO VEER W BY
08/1200 DECR 6 WITH GUSTS BY 08/2100 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
-----------------------------------------------------------------
NNNN=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 08, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1138/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV N DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR S WITH GUST IN 68S-65S 40W-30W FROM 08/0600 UNTIL 08/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 962HPA 68S 31W MOV E DPN
LOW 987HPA 62S 62W MOV E DPN
HIGH 996HPA 65S 60W MOV NE INTSF EXTENDS RIDGE AT 65S 60W 68S 58W 70S 58W MOV E
LOW 988HPA 65S 70W MOV E DPN
LOW 986HPA 62S 70W MOV SE DPN
071400 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 5749S 04744W 28X25NM D33B 5849S 05058W 21X12NM A76C 5338S 02618W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D32 5723S 03757W 9X6NM D33C 6139S 05333W 9X5NM ICEBERG1 5921S 04700W 5X3NM ICEBERG2 6017S 05234W 5X3NM ICEBERG3 5917S 05050W 6X4NM ICEBERG4 5951S 05008W 2X1NM 4.ICEBERGS AREA A5626S 02000W 4900S 02000W 5400S 04000W 5817S 4000S B5817S 04000W 5501S 04000W 5757S 04656W 6102S 6716W 6923S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-9
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 3/4 BACK SE 4 BY 8/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 5/6 WITH GUSTS BACK SE 5/4 BY 8/1200 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 3/4 BACK SE 4 BY 8/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 5/6 WITH GUSTS BACK SE 5/4 BY 8/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
GERLACHE STRAIT : NE 3/4 VEER SECTOR E 5/6 BY 8/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : NE 3/4 BACK SECTOR N 4 BY 8/1200 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 5/6 WITH GUSTS BACK SECTOR S 5/4 BY 8/0600 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS EVENING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/6 WITH GUSTS BACK SECTOR S 6/5 WITH GUSTS BY 8/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR S 5/6 WITH GUSTS DECR SECTOR S 5/4 BY 8/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 7 WITH GUSTS VEER SW 5/4 BY 8/1200 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SECTOR S 4/5 VEER SW 4/5 WITH GUSTS BY 8/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 5/6 INCR SECTOR S 7/8 BY 8/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 3/4 BACK SECTOR E 4 BY 8/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE TO POOR=