1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-03, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 306: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST BETWEEN 35S-40S 40W-55W
WARNING 305: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 50S-60S AND 20W-60W
WARNING 304: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) UNTIL 04/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1036HPA 35S 60W MOV E WKN EXP 37S 57W BY 04/1200 EXTENDS RIDGE AT 35S 60W
39S 59W 46S 55W
CFNT AT 49S 64W 55S 46W 60S 43W MOV E
LOW 993HPA 53S 25W MOV E EXTENDS CFNT AT 53S 25W 45S 28W MOV E
021400 UTC 1.SEA ICE LIMIT 5924S 02000W 5722S 02618W 5815S 03218W 5842S 03757W
6010S 04317W 6136S 04814W 6209S 05247W 6313S 05713W 6353S 06033W 6459S 06336W
6614S 06559W 6627S 06716W 2.ICEBERGS GREATER THAN 10NM A81 6200S 05339W 28X25NM
A76C 5255S 03213W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4727S 02239W
3X1NM ICEBERG2 5247S 03150W 2X1NM ICEBERG3 6142S 05333W 2X1NM 4.ICEBERGS AREA
A6018S 02000W 4300S 02000W 4500S 03500W 5819S 03500W B5819S 03500W 5100S 03500W
5500S 04900W 6139S 04858W C6139S 04858W 5900S 04900W 5900S 06000W 6300S 06716W
6647S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-4
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3 BACK SECTOR E 3 VIS GOOD
OUTER RIO DE LA PLATA: SW 4/5 BACK SE 4/3 PROB OF DRIZZLE TOWARDS EARLY MORNING
IMPR VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SW 5/4 WITH GUSTS PROB OF ISOL SH RAIN SPELLS OF GOOD
WEATHER VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 5/3 WITH GUSTS VIS GOOD OCNL
MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 3 VEER SECTOR N 3/4 PROB OF
ISOL DRIZZLE TOWARDS EARLY MORNING IMPR VIS GOOD TO MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 4/5 WITH GUSTS PROB OF ISOL
DRIZZLE STARTING EARLY MORNING VIS GOOD TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): NW 4/3 VEER N 3/5 WITH GUSTS VIS GOOD
OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 4/3 BACK SECTOR N 3 PROB OF ISOL
RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/3 WITH GUSTS VEER NW 3/4 VIS GOOD
OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR S 3 VEER SECTOR N 3/4 PROB OF ISOL RAIN TOWARDS
THE END OF THE PERIOD VIS GOOD OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR S 5 WITH GUSTS VEER SECTOR W
4/3 PROB OF ISOL SH RAIN STARTING THE END OF THE PERIOD IMPR VIS MODERATE
E OF 40W: SECTOR N 5/4 WITH GUSTS BACK SECTOR E 4/6 WITH GUSTS PROB OF ISOL
RAIN STORMS VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR S 6/8 WITH GUSTS PROB OF RAIN STORMS VIS POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SW 5 WITH GUSTS VEER W 6/4 WITH GUSTS
PROB OF ISOL SH RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR S 4/6 WITH GUSTS DECR
4/3 FOG AND MIST IN PATCHES DISSIPATING PROB OFISOL SH RAIN TOWARDS THE END OF
THE PERIOD IMPR VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR W 5/4 WITH GUSTS BACK SECTOR S 3 MIST FOG PATCHES
DISSIPATING PROB OFISOL RAIN TOWARDS THE END OF THE PERIOD IMPR VIS MODERATE TO
GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR N 4/6 WITH GUSTS BACK SECTOR W
6/8 WITH GUSTS PROB OF RAIN SNOW FALL SPELLS OF GOOD WEATHER VIS MODERATE TO
POOR OCNL VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 8/6 WITH GUSTS PROB OF ISOL
RAIN SNOW FALL SPELLS OF GOOD WEATHER VIS POOR OCNL VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8/6 WITH GUSTS PROB OF ISOL RAIN
RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 03, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
880/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST BACK SECTOR W IN 60S-65S 90W-70W UNTIL 04/0900
881/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST VEER NW IN 60S-64S 70W-50W UNTIL 04/1800
882/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW GUST WITH 9 INTENSITY IN 64S-67S 58W-50W UNTIL 04/0000
883/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-65S 50W-30W UNTIL 04/1200
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 982HPA 64S 72W MOV SE DPN
LOW 952HPA 67S 49W MOV SE DPN
RIDGE 60S 62W 63S 65W 65S 67W MOV E WKN
021400 UTC 1.SEA ICE LIMIT 5924S 02000W 5722S 02618W 5815S 03218W 5842S 03757W 6010S 04317W 6136S 04814W 6209S 05247W 6313S 05713W 6353S 06033W 6459S 06336W 6614S 06559W 6627S 06716W 2.ICEBERGS GREATER THAN 10NM A81 6200S 05339W 28X25NM A76C 5255S 03213W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4727S 02239W 3X1NM ICEBERG2 5247S 03150W 2X1NM ICEBERG3 6142S 05333W 2X1NM 4.ICEBERGS AREA A6018S 02000W 4300S 02000W 4500S 03500W 5819S 03500W B5819S 03500W 5100S 03500W 5500S 04900W 6139S 04858W C6139S 04858W 5900S 04900W 5900S 06000W 6300S 06716W 6647S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-4
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 8 GUST WITH 9 INTENSITY BACK SECTOR W 8 WITH GUSTS BY 03/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 9 WITH GUSTS VEER NW 8 WITH GUSTS BY 4/0300 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: NW 8 GUST WITH 9 INTENSITY BACK SECTOR W 8 WITH GUSTS BY 03/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 9 WITH GUSTS VEER NW 8 WITH GUSTS BY 4/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
GERLACHE STRAIT : NE 4/5 WITH GUSTS BACK NW 7 GUST WITH 8 INTENSITY BY 4/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NOON VIS POOR TO MODERATE
MARGARITA BAY : NE 4/5 WITH GUSTS BACK NW 7 GUST WITH 8 INTENSITY BY 4/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NOON VIS POOR TO MODERATE
EREBUS Y TERROR GULF : SW 9 WITH GUSTS VEER NW 7/5 WITH GUSTS BY 4/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 8 WITH GUSTS BACK SECTOR W 9 BY 03/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR N 5/6 WITH GUSTS VEER NE 7 GUST WITH 8 INTENSITY BY 03/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE NOON VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 4/3 VEER SE 5/6 BY 03/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: SECTOR W 9 WITH GUSTS BACK SW 8 WITH GUSTS BY 4/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE NIGTH VIS POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: NE 7/8 WITH GUSTS VEER SECTOR E 7 WITH GUSTS BY 4/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 4/5 VEER SECTOR E 4/3 BY 03/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS MODERATE TO POOR=