1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-3, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 401: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH
GUST BETWEEN 35S-40S 35W-55W FROM 03/0900
WARNING 397: LOW 984HPA AT 39S 30W MOV SE DEEPENING PROVOKES WINDS FORCE 10
AROUND ITSELF WITH GUST BETWEEN 35S-50S AND 20W-35W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
021400 UTC 1.SEA ICE LIMIT 5558S 02000W 5446S 02618W 5350S 03218W 5557S 03758W
5859S 04317W 6011S 04814W 6040S 05248W 6201S 05655W 6335S 06032W 6312S 06337W
6137S 06559W 6136S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5314S 02748W 17X6NM
A81 5850S 04713W 28X25NM D33B 5907S 05051W 21X12NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6155S 05403W 9X5NM ICEBERG1 5832S 05012W 5X3NM ICEBERG2 6045S 05241W 5X3NM
ICEBERG3 6016S 05206W 6X4NM ICEBERG4 5835S 05025W 2X1NM ICEBERG5 5839S 04948W
2X1NM 4.ICEBERGS AREA A5700S 02000W 4700S 02000W 5200S 04900W 6100S 04900W
B5600S 04900W 6100S 04900W 6600S 06600W 6600S 06600W
LOW 984HPA 39S 30W MOV SE DPN
LOW 1005HPA 39S 58W MOV E DPN EXP 40S 40W BY 03/2100
LOW 1005HPA 44S 60W MOV E WKN EXTENDS CFNT AT 44S 60W 41S 60W 38S 62W MOV NE
LOW 975HPA 58S 50W MOV SE WKN
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-4
COASTAL AREAS:
INNER RIO DE LA PLATA: NW 4/5 WITH GUSTS BACK SECTOR W WITH GUSTS BY 3/0600 PROB
OF HVY STORMS NXT ISOL STORMS STARTING EVENING IMPR VIS MODERATE OCNL POOR TO
GOOD
OUTER RIO DE LA PLATA: NW 4/5 WITH GUSTS BACK SECTOR W WITH GUSTS BY 3/0600 PROB
OF HVY STORMS NXT ISOL STORMS STARTING EVENING IMPR VIS MODERATE OCNL POOR TO
GOOD
URUGUAY SOUTH EAST COASTS: NW 5/6 WITH GUSTS BACK SECTOR W 6/5 BY 3/1200 PROB OF
HVY STORMS STARTING EARLY MORNING VIS MODERATE TO POOR
MAR DEL PLATA COASTS(3617S - 3830S): NW 5/6 WITH GUSTS BACK SECTOR W 5 BY
3/0600 PROB OF HVY STORMS NXT SH VIS POOR TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 5/6 WITH GUSTS PROB OF ISOL STORMS
STARTING EARLY MORNING IMPR VIS MODERATE OCNL GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SW 5 PROB OF ISOL STORMS STARTING EARLY
MORNING IMPR VIS MODERATE TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 5/6 WITH GUSTS VIS GOOD TO
MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 7/6 GUST WITH 8 INTENSITY BACK
SECTOR S 6 WITH GUSTS BY 3/1500 PROB OF RAIN VIS POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 6 WITH GUSTS BACK SECTOR S 5/6 WITH
GUSTS BY 3/1200 PROB OF SH RAIN AND SNOW MIXTURE VIS POOR OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR W 7/6 GUST WITH 8 INTENSITY BACK SECTOR S 5 BY
3/0300 PROB OF RAIN NXT PROB OF RAIN AND SNOW MIXTURE VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR N 10/9 WITH GUSTS BACK
SECTOR W 9/7 WITH GUSTS BY 3/0900 PROB OF RAIN VIS VERY POOR
REST OF THE AREA: SECTOR N 6/8 WITH GUSTS PROB OF HVY RAIN NXT RAIN VIS VERY
POOR OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 35 - N OF 45S: SECTOR N 9 WITH
GUSTS BACK SECTOR W 9/7 WITH GUSTS BY 3/1200 PROB OF HVY RAIN NXT SH VIS VERY
POOR TO POOR
E OF 35 - S OF 45S: SECTOR S 8/7 WITH GUSTS PROB OF HVY RAIN NXT SH VIS VERY
POOR TO POOR
REST OF THE AREA: SECTOR S 7 WITH GUSTS VEER SECTOR W 6 WITH GUSTS PROB OF RAIN
NXT HVY RAIN VIS POOR OCNL VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: VRB 5/6 WITH GUSTS PROB OF
HVY RAIN VIS POOR
REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF SH VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): NW 6/7 WITH GUSTS PROB OF SH OF SNOW
VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): NW 7 WITH GUSTS BACK SECTOR S 6 WITH
GUSTS BY 3/1200 PROB OF SNOW FALL VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 5/4 PROB OF SNOW FALL VIS MODERATE
OCNL POOR
-----------------------------------------------------------------
NNNN=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 03, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1124/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-64S 38W-30W UNTIL 03/0600
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 955HPA 70S 35W MOV E WKN
LOW 974HPA 63S 35W MOV E WKN
LOW 992HPA 62S 63W MOV E WKN
HIGH 997HPA 64S 75W MOV NE INTSF
LOW 993HPA 61S 81W MOV E DPN
021400 UTC 1.SEA ICE LIMIT 5558S 02000W 5446S 02618W 5350S 03218W 5557S 03758W 5859S 04317W 6011S 04814W 6040S 05248W 6201S 05655W 6335S 06032W 6312S 06337W 6137S 06559W 6136S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5314S 02748W 17X6NM A81 5850S 04713W 28X25NM D33B 5907S 05051W 21X12NM 3.ICEBERGS SMALLER THAN 10NM D33C 6155S 05403W 9X5NM ICEBERG1 5832S 05012W 5X3NM ICEBERG2 6045S 05241W 5X3NM ICEBERG3 6016S 05206W 6X4NM ICEBERG4 5835S 05025W 2X1NM ICEBERG5 5839S 04948W 2X1NM 4.ICEBERGS AREA A5700S 02000W 4700S 02000W 5200S 04900W 6100S 04900W B5600S 04900W 6100S 04900W 6600S 06600W 6600S 06600W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-4
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 INCR SW 6 BY 3/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 5/6 WITH GUSTS VEER SW 5/6 WITH GUSTS BY 3/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 INCR SW 6 BY 3/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 5/6 WITH GUSTS VEER SW 5/6 WITH GUSTS BY 3/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
GERLACHE STRAIT : SE 4/5 BACK SECTOR E 4 BY 3/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MARGARITA BAY : SW 3/4 BACK SE 4/3 BY 3/1500 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 7/6 WITH GUSTS BACK SECTOR S 5/6 WITH GUSTS BY 3/1800 PROB OF FOG AND MIST IN PATCHES PROB OFCOASTAL BLIZZARD SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR E 3/4 VEER SE 4/3 BY 3/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 3/4 VEER NE 4 BY 3/1500 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/3 VEER NW 4/5 BY 3/1800 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: NW 8 WITH GUSTS BACK SW 6 WITH GUSTS BY 3/0600 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NW 7 GUST WITH 8 INTENSITY BACK SW 7/5 WITH GUSTS BY 3/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 BACK NE 5/7 BY 3/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR=