1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-25, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1029HPA 39S 28W MOV E NC
LOW 996HPA 51S 62W MOV NE DPN EXP 47S 45W BY 26/1200 EXTENDS CFNT AT 51S 62W 47S
49W 41S 48W
241400 UTC 1.SEA ICE LIMIT 5800S 02000W 5607S 02618W 5752S 03217W 5807S 03758W
5824S 04317W 5925S 04813W 6125S 05247W 6219S 05654W 6313S 06033W 6407S 06337W
6522S 06558W 6444S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6115S 05112W 21X12NM
A81 6029S 05249W 28X25NM A76C 5217S 03116W 16X6NM 3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 6141S 05154W 6X3NM 4.ICEBERGS AREA A5900S 02000W 4500S 02000W 4400S
03000W 6000S 04000W B5700S 03800W 6000S 04000W 5600S 05000W 6200S 05000W C6200S
05000W 5800S 05000W 6230S 06716W 6630S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-26
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3/4 PROB OF FOG MIST VIS MODERATE
OUTER RIO DE LA PLATA: SECTOR N 3/4 PROB OF FOG MIST VIS MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 3/4 PROB OF FOG MIST VIS MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/5 WITH GUSTS BACK SECTOR W BY
26/0300 PROB OF FOG MIST VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4/5 WITH GUSTS BACK SECTOR W
BY 26/0000 PROB OF DRIZZLE RAIN VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 4/5 WITH GUSTS PROB OF SH RAIN
VIS MODERATE OCNL POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 4/5 WITH GUSTS VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 5/6 WITH GUSTS PROB OF SH RAIN VIS
MODERATE OCNL POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR E 4/5 VEER SECTOR S 5/7 WITH GUSTS BY
25/1500 PROB OF RAIN VIS MODERATE OCNL POOR. SECTOR S 5/6 WITH GUSTS PROB OF SH
RAIN VIS MODERATE OCNL POOR.
ISLAS MALVINAS COASTS: SECTOR E 4/5 VEER SECTOR S 5/6 BY 26/0000 PROB OF SH RAIN
VIS GOOD TO MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W): SECTOR N 4/5 WITH GUSTS PROB OF SH RAIN VIS
GOOD TO MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 5/6 WITH GUSTS VEER SECTOR S
6/7 GUST WITH 8 INTENSITY BY 26/0000 PROB OF SH RAIN VIS MODERATE TO POOR OCNL
VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 6/7 WITH GUSTS PROB
OF SH RAIN VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 4/5 WITH GUSTS VEER SECTOR N 6/7 WITH GUSTS BY
26/0000 BACK SECTOR W BY 26/0900 PROB OF SH RAIN VIS POOR OCNL VERY POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 6/7 GUST WITH 8 INTENSITY DECR
4/6 BY 26/0000 PROB OF ISOL RAIN VIS POOR OCNL VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR E 4/5 BACK SECTOR S BY
26/0900 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR W 5/6 WITH GUSTS VEER SECTOR S BY 26/0600 VIS GOOD
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 5/4 VIS GOOD
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 25, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1009/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS MOV NE WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 62S-64S 62W-50W UNTIL 25/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 974HPA 68S 57W MOV E WKN
LOW 976HPA 72S 49W MOV E WKN
RIDGE 60S 38W 65S 40W 67S 41W MOV E WKN
RIDGE 61S 90W 62S 80W 61S 75W MOV E WKN
241400 UTC 1.SEA ICE LIMIT 5800S 02000W 5607S 02618W 5752S 03217W 5807S 03758W 5824S 04317W 5925S 04813W 6125S 05247W 6219S 05654W 6313S 06033W 6407S 06337W 6522S 06558W 6444S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6115S 05112W 21X12NM A81 6029S 05249W 28X25NM A76C 5217S 03116W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6141S 05154W 6X3NM 4.ICEBERGS AREA A5900S 02000W 4500S 02000W 4400S 03000W 6000S 04000W B5700S 03800W 6000S 04000W 5600S 05000W 6200S 05000W C6200S 05000W 5800S 05000W 6230S 06716W 6630S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-26
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 5/7 GUST WITH 8 INTENSITY BACK SW 5 WITH GUSTS BY 26/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5/7 GUST WITH 8 INTENSITY BACK SW 5 BY 26/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
GERLACHE STRAIT : SW 3/5 WITH GUSTS BACK SECTOR S 3/3 BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : NW 4/3 VEER SECTOR E 4/3 BY 25/1800 VIS GOOD
EREBUS Y TERROR GULF : SW 6/7 GUST WITH 8 INTENSITY BACK SECTOR S 5/4 BY 26/0600 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 4/5 WITH GUSTS INCR SW 6 WITH GUSTS BY 25/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5/7 WITH GUSTS DECR SW 5/4 WITH GUSTS BY 25/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 7/5 WITH GUSTS DECR SW 5/4 WITH GUSTS BY 26/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA N OF 65S: SECTOR W 5/7 WITH GUSTS VEER NW 7 GUST WITH 8 INTENSITY BY 25/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 4/3 VEER NE 2/4 BY 26/0000 PROB OF MIST VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 4/5 VEER SECTOR E 4/3 BY 26/0000 VIS GOOD=