1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-28, 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 MOV E WILL PROVOKE WINDS FORCE 8 FROM SECTOR
N WITH GUST BETWEEN 35S-45S 20W-40W FROM 28/2100
WARNING 349: LOW 972HPA AT 58S 32W MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 50S-60S AND 20W-40W UNTIL 29/0900
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 972HPA 58S 32W MOV SE DPN EXTENDS CFNT AT 58S 32W 53S 37W 52S 45W
LOW 1000HPA 41S 49W MOV SE DPN EXP 45S 21W BY 29/1200 EXTENDS CFNT AT 41S 49W
35S 53W 33S 57W MOV NE ASOCIATED WITH OFNT AT 41S 49W 44S 57W 41S 59W
271400 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 6103S 05131W 21X12NM
A81 6025S 05247W 28X25NM A76C 5242S 03120W 16X6NM 3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 6130S 05129W 6X3NM 4.ICEBERGS AREA A5820S 02000W 4600S 02000W 5300S
03800W 5830S 03800W B5830S 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 2026-07-29
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3 BACK SECTOR E 3/4 MIST FOG PATCHES DISSIPATING
VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR S 3 BACK SECTOR E 3/4 MIST FOG PATCHES DISSIPATING
VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR S 3 FOG MIST DISSIPATING PROB OF SH RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 3/4 MIST FOG PATCHES DISSIPATING
PROB OFISOL RAIN STARTING NIGTH VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 3 VEER SECTOR E 3 MIST FOG
PATCHES DISSIPATING PROB OFISOL SH RAIN TOWARDS THE END OF THE PERIOD VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5/4 WITH GUSTS BACK SECTOR S
4/3 BACK SECTOR N 3 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 5/3 WITH GUSTS VEER SECTOR W
3/4 PROB OF ISOL SH RAIN ISOL RAIN AND SNOW MIXTURE VIS GOOD OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5/4 WITH GUSTS PROB OF ISOL RAIN
RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/4 WITH GUSTS PROB OF ISOL RAIN AND
SNOW MIXTURE VIS MODERATE OCNL GOOD
ISLAS MALVINAS COASTS: SECTOR W 5/4 WITH GUSTS ISOL RAIN AND SNOW MIXTURE SPELLS
OF GOOD WEATHER VIS MODERATE OCNL GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR S 5/3 VEER SECTOR W 3 VEER
SECTOR N 6/8 WITH GUSTS PROB OF ISOL HVY RAIN STORMS STARTING NIGTH VIS MODERATE
TO POOR
E OF 40W: SECTOR N 5/8 WITH GUSTS BACK SECTOR W 5/3 WITH GUSTS PROB OF HVY RAIN
STORMS VIS POOR
REST OF THE AREA: SECTOR N 5 WITH GUSTS BACK SECTOR S 5/3 WITH GUSTS PROB OF
ISOL STORMS TOWARDS EARLY MORNING IMPR VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 5/4 VEER SECTOR N
6/8 WITH GUSTS BACK SECTOR S 4/3 PROB OF HVY RAIN STORMS VIS POOR
REST OF THE AREA: SECTOR W 5 WITH GUSTS TEMPO VEER SECTOR N 5/6 WITH GUSTS PROB
OF ISOL RAIN RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR N 3 BACK SECTOR W 4/5
VEER SECTOR S 4/3 PROB OF ISOL RAIN STORMS VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 4/5 WITH GUSTS TEMPO VEER SECTOR S 4/5 WITH GUSTS
PROB OF ISOL SH RAIN RAIN AND SNOW MIXTURE VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 6/8 WITH GUSTS DECR 6/5 WITH
GUSTS PROB OF SNOW FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SW 5/6 WITH GUSTS PROB OF ISOL SNOW
FALL VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 5/4 WITH GUSTS PROB OF ISOL SNOW FALL
SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
-----------------------------------------------------------------
NNNN=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 28, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 992HPA 61S 42W MOV E DPN
LOW 993HPA 63S 56W MOV E WKN
HIGH 999HPA 70S 50W MOV E WKN
LOW 991HPA 73S 52W MOV E WKN
271400 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 6103S 05131W 21X12NM A81 6025S 05247W 28X25NM A76C 5242S 03120W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6130S 05129W 6X3NM 4.ICEBERGS AREA A5820S 02000W 4600S 02000W 5300S 03800W 5830S 03800W B5830S 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 2026-07-29
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS DECR SW 4 BY 29/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 4/3 BACK SE 4/3 BY 28/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS DECR SW 4 BY 29/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 4/3 BACK SE 4/3 BY 29/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
GERLACHE STRAIT : SECTOR E 3/4 BACK NE 4/3 BY 29/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE
MARGARITA BAY : SECTOR E 3/4 BACK NE 4/3 BY 28/2100 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SECTOR S 5/6 WITH GUSTS BACK SECTOR E 4/3 BY 29/0600 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 DECR SW 3/3 WITH GUSTS BY 29/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 6/5 WITH GUSTS DECR SECTOR W 5/4 WITH GUSTS BY 29/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 7 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 28/1800 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: SE 3/4 WITH GUSTS VEER SW 4/3 WITH GUSTS BY 28/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SE 3/4 VEER SECTOR S 4/4 BY 28/1200 PROB OF MIST VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 BACK NE 4/5 BY 28/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS GOOD TO MODERATE=