1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-29, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 350: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 WITH GUST BETWEEN
35S-45S AND 20W-30W UNTIL 30/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
281400 UTC 1.SEA ICE LIMIT 5755S 02000W 5553S 02618W 5742S 03217W 5752S 03757W
5825S 04317W 5950S 04814W 6123S 05248W 6201S 05654W 6323S 06032W 6404S 06337W
6525S 06559W 6330S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 61 06S 051 71W
21X12NM A81 60 24S 052 43W 28X25NM A76C 52 27S 031 35W 16X6NM 3.ICEBERGS SMALLER
THAN 10NM ICEBERG1 59 34S 050 53W 2X1NM 4.ICEBERGS AREA A5820S 02000W 4600S
02000W 5300S 03800W 5805S 03800W B5805S 03800W 5300S 03800W 5800S 05000W 6040S
05000W C6040S 05000W 5800S 05000W 6300S 06716W 6620S 06716W
HIGH 1017HPA 37S 61W MOV NE INTSF EXP 35S 52W BY 30/1200
LOW 998HPA MOV SE DPN EXP 35S 28W BY 30/1200
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-30
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3/4 PROB OF MIST DURING THE MORNING VIS GOOD
OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR E 3/4 PROB OF MIST DURING THE MORNING VIS GOOD
OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR E 3/4 BACK NE 5 WITH GUSTS BY 30/1200 MIST
DURING THE MORNING VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): VRB 3 PREVAIL SECTOR E BACK NE 6 WITH
GUSTS BY 30/0900 MIST DURING THE MORNING VIS MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 3/4 WITH GUSTS VEER NE 6/7
WITH GUSTS BY 30/0900 WORSENING WITH PROB OF RAIN FROM 30/0900 VIS MODERATE TO
POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 3/4 VEER NE 5 WITH GUSTS BY
30/0600 LOW PROB OF RAIN AND SNOW MIXTURE NXT PROB OF RAIN VIS MODERATE TO
POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 3/4 VEER NE 5 WITH GUSTS BY
30/0600 LOW PROB OF RAIN AND SNOW MIXTURE NXT PROB OF RAIN VIS MODERATE TO
POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5 WITH GUSTS PROB OF SNOW FALL VIS
POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/4 PROB OF ISOL SNOW FALL IMPR
TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD. SECTOR W 5 WITH GUSTS PROB
OF SNOW FALL VIS POOR.
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS PROB OF SNOW FALL VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 8 WITH GUSTS BACK SECTOR S
WITH GUSTS BY 30/0000 PROB OF RAIN VIS VERY POOR
REST OF THE AREA: SW 5 WITH GUSTS PROB OF SH RAIN VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W - N OF 45S: SECTOR N 8 WITH
GUSTS BACK SECTOR S DECR 5 BY 30/0000 PROB OF RAIN IMPR VIS VERY POOR TO
MODERATE
REST OF THE AREA: SECTOR S 5 WITH GUSTS LOW PROB OF RAIN VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SW 5 WITH GUSTS PROB OF RAIN NXT RAIN
AND SNOW MIXTURE VIS MODERATE TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 7 GUST WITH 8 INTENSITY PROB
OF SNOW FALL IMPR 30/0000 VIS POOR TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SW 5 WITH GUSTS VEER SECTOR W 6 WITH
GUSTS BY 30/0000 PROB OF SNOW FALL VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 5 WITH GUSTS VEER SECTOR W 6 WITH GUSTS
BY 30/0000 PROB OF SNOW FALL VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 29, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1016/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV NE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-65S 50W-30W FROM 30/0300 UNTIL 30/2300
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 984HPA 64S 60W MOV E WKN
LOW 981HPA 69S 70W MOV E WKN
HIGH 1000HPA 61S 50W MOV E WKN
LOW 991HPA 73S 50W MOV E WKN
281400 UTC 1.SEA ICE LIMIT 5755S 02000W 5553S 02618W 5742S 03217W 5752S 03757W 5825S 04317W 5950S 04814W 6123S 05248W 6201S 05654W 6323S 06032W 6404S 06337W 6525S 06559W 6330S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 61 06S 051 71W 21X12NM A81 60 24S 052 43W 28X25NM A76C 52 27S 031 35W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 59 34S 050 53W 2X1NM 4.ICEBERGS AREA A5820S 02000W 4600S 02000W 5300S 03800W 5805S 03800W B5805S 03800W 5300S 03800W 5800S 05000W 6040S 05000W C6040S 05000W 5800S 05000W 6300S 06716W 6620S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-30
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 3/3 BACK SW 5 WITH GUSTS BY 30/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 4/5 VEER SECTOR W 4/5 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3/4 BACK SW 5 WITH GUSTS BY 30/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 4/5 VEER SECTOR W 4/5 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
GERLACHE STRAIT : NE 3/4 BACK SW 5/6 BY 30/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE
MARGARITA BAY : NW 3/4 VEER NE 4 BY 30/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE NIGTH VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SECTOR N 3/4 BACK SW 5/7 WITH GUSTS BY 30/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 4/5 WITH GUSTS INCR SW 6 WITH GUSTS BY 29/1800 PROB OF MIST PROB OFSCT SH OF SNOW WORSENING DURING THE NOON VIS GOOD TO MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5/7 WITH GUSTS DECR SW 6/5 BY 30/0300 PROB OF FOG AND MIST IN PATCHES PROB OFSCT SH OF SNOW IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 5/6 WITH GUSTS DECR SW 5/4 BY 30/0300 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
NORTHERN WEDDELL SEA N OF 65S: SW 3/4 VEER SECTOR W 4/3 BY 29/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NOON VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 VEER SW 4/3 BY 29/1800 PROB OF MIST VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 VEER SE 4 BY 29/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NIGTH VIS MODERATE TO GOOD=