1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-3, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 304: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 9 FROM SECTOR W WITH
GUST IN DRAKE AREA (55S- 60S AND 60W- 67W)
WARNING 305: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 10 FROM SECTOR W WITH
GUST BETWEEN 50S-60S 30W-60W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
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
LOW 1023HPA 37S 52W MOV NE
CFNT AT DRAKE AREA (55S- 60S AND 60W- 67W) MOV E
CFNT AT 60S 32W 55S 34W 46S 40W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-4
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3 PROB OF MIST IMPR DURING THE MORNING VIS
MODERATE TO GOOD
OUTER RIO DE LA PLATA: SW 4/3 PROB OF SH IMPR STARTING EARLY MORNING VIS
MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SW 6/7 GUST WITH 8 INTENSITY PROB OF HVY RAIN VIS
VERY POOR
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 6/5 WITH GUSTS PROB OF SH IMPR
STARTING EARLY MORNING VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): VRB 4/3 PROB OF MIST IMPR DURING THE
MORNING VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): NW 4/6 WITH GUSTS VIS GOOD TO
MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): NW 5/4 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 7/6 WITH GUSTS BACK VRB 5/4 BY
3/0900 VIS POOR TO GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 7/5 WITH GUSTS UNSTABLE VIS POOR
ISLAS MALVINAS COASTS: SECTOR W 7/6 WITH GUSTS BACK VRB 5/4 BY 3/1200 VIS POOR
TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR S 5/6 WITH GUSTS PROB OF
ISOL RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR S 6/7 GUST WITH 8 INTENSITY PROB OF RAIN NEXT HVY RAIN
VIS POOR OCNL VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SW 6 WITH GUSTS PROB OF SH VIS
MODERATE OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR S 5 LOW PROB OF ISOL
RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR W 5/7 WITH GUSTS PROB
OF SH OF SNOW VIS POOR OCNL MODERATE
REST OF THE AREA: SECTOR W 6/7 WITH GUSTS INCR SECTOR W 8/9 WITH GUSTS BY
3/1200 PROB OF SNOW FALL STARTING EARLY MORNING VIS MODERATE TO VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR W 8 WITH GUSTS UNSTABLE
VIS VERY POOR
REST OF THE AREA: SECTOR W 9/10 WITH GUSTS PROB OF RAIN NEXT SNOW FALL VIS VERY
POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 9/8 WITH GUSTS PROB OF SH RAIN AND
SNOW MIXTURE VIS VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 03, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
876/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-64S 80W-70W UNTIL 03/0600
877/2026 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 BACK SW IN 60S-64S 70W-50W UNTIL 04/0000
878/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 GUST WITH 9 INTENSITY BACK SW IN 64S-67S 58W-50W UNTIL 04/0000
879/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST BACK SECTOR W IN 60S-65S 50W-30W FROM 03/0600 UNTIL 04/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 956HPA 64S 69W MOV SE DPN
LOW 950HPA 64S 58W MOV SE DPN
LOW 968HPA 70S 40W MOV SE WKN
RIDGE 60S 82W 65S 80W 68S 78W MOV E INTSF
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-4
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 8 GUST WITH 9 INTENSITY BACK SECTOR W 9 WITH GUSTS BY 3/0600 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: NW 7/8 WITH GUSTS BACK SECTOR W 9 WITH GUSTS BY 3/0600 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 9 WITH GUSTS BY 3/0600 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: NW 7/8 WITH GUSTS BACK SECTOR W 9 WITH GUSTS BY 3/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
GERLACHE STRAIT : NW 5/6 WITH GUSTS BACK SW 7 GUST WITH 8 INTENSITY BY 3/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR TO MODERATE
MARGARITA BAY : NW 5/4 VEER SECTOR N 4/5 BY 3/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
EREBUS Y TERROR GULF : NW 9 WITH GUSTS BACK SW 8 GUST WITH 9 INTENSITY BY 3/0600 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 7/8 WITH GUSTS VEER NW 9 WITH GUSTS BY 3/0600 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 W 7 GUST WITH 8 INTENSITY VEER NW 6/5 WITH GUSTS BY 3/0600 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/5 WITH GUSTS VEER SECTOR N 4/3 BY 3/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: NW 5/6 WITH GUSTS BACK SECTOR W 7/8 BY 3/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR N 5/6 WITH GUSTS VEER NE 7 BY 3/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 4/5 VEER SECTOR E 4/3 BY 3/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS EVENING VIS MODERATE TO GOOD=