1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 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 21:00UTC
LOW 973HPA 61S 40W MOV SE DPN
LOW 993HPA 70S 75W MOV E WKN
HIGH 992HPA 63S 57W MOV E WKN
HIGH 996HPA 71S 51W 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-29
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS DECR SW 5/3 BY 28/1200 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 4/5 WITH GUSTS BACK SE 4/3 BY 28/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS DECR SW 5/4 BY 28/1200 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 4/5 WITH GUSTS BACK SE 3/3 BY 27/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
GERLACHE STRAIT : SECTOR E 3/4 BACK NE 4/3 BY 28/0900 PROB OF MIST VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR E 3/4 BACK NE 4/3 BY 28/1200 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 5/6 WITH GUSTS BACK SECTOR S 4 BY 28/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 6/4 WITH GUSTS DECR SW 5/4 WITH GUSTS BY 28/1500 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 7/5 WITH GUSTS DECR SW 5 WITH GUSTS BY 28/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 7 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 28/1200 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 3/3 WITH GUSTS BY 27/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SE 3/4 VEER SECTOR S 4/5 BY 28/1200 PROB OF MIST VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 BACK NE 4/4 BY 28/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS GOOD TO MODERATE=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-28, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 349: LOW 975HPA AT 60S 39W MOV E DEEPENING EXPECTED 60S 27W BY 29/0000
WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST BETWEEN 50S-60S 30W-40W FROM
28/0300 UNTIL 28/1800
WARNING 347: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 40S-50S AND 20W-30W UNTIL 28/0600
PART 2 GENERAL SYNOPSIS AT 21:00UTC
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
LOW 1002HPA 45S 64W MOV E WKN EXP BY 29/0000 ASOCIATED WITH OFNT AT 46S 63W 45S
66W 43S 65W
LOW 1005HPA 40S 56W MOV SE DPN EXP 42S 33W BY 29/0000 EXTENDS CFNT AT MAR DEL
PLATA COASTS MOV NE
RIDGE 38S 40W 41S 44W 45S 47W
LOW 975HPA 60S 39W MOV E DPN EXP 60S 27W BY 29/0000
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-29
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3/4 INCR SECTOR E 5 WITH GUSTS BY 28/1800 PROB OF
MIST DISSIPATING DURING THE MORNING VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: VRB 3/4 INCR SECTOR E 5 WITH GUSTS BY 28/1800 PROB OF
MIST DISSIPATING DURING THE MORNING VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 4 BACK SECTOR W BY 28/0600 BACK SE BY
28/1500 PROB OF MIST FOG PATCHES DISSIPATING DURING THE MORNING VIS MODERATE
OCNL POOR TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5 WITH GUSTS BACK SECTOR W 4 BY
28/0300 BACK SECTOR S 5 WITH GUSTS BY 28/0900 PROB OF ISOL RAIN IMPR DURING THE
EARLY MORNING VIS MODERATE OCNL POOR TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5 WITH GUSTS BACK SECTOR S
BY 28/0600 DECR VRB 3 BY 28/2300 LOW PROB OF COASTAL MIST DURING THE EARLY
MORNING DISSIPATING DURING THE MORNING VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 6 WITH GUSTS DECR VRB 4/3 BY
28/1800 PROB OF ISOL RAIN VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 6 WITH GUSTS DECR VRB 4/3 BY
28/1800 PROB OF ISOL RAIN VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): VRB 4 INCR SECTOR S 5 WITH GUSTS BY 28/0300
VEER SECTOR W BY 28/0900 PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER
VIS MODERATE OCNL GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 6 WITH GUSTS LOW PROB OF RAIN AND
SNOW MIXTURE VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS LOW PROB OF RAIN AND SNOW MIXTURE
VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SW 6 WITH GUSTS VEER SECTOR N 6/7
GUST WITH 8 INTENSITY BY 28/1500 PROB OF ISOL RAIN STORMS STARTING EARLY MORNING
VIS GOOD TO POOR OCNL VERY POOR
W OF 40 - E OF 50W: VRB 4 INCR SECTOR N 6 WITH GUSTS BY 28/0300 BACK SW BY
28/1500 PROB OF ISOL RAIN STORMS STARTING EARLY MORNING IMPR TOWARDS THE END OF
THE PERIOD VIS GOOD TO MODERATE OCNL POOR
REST OF THE AREA: SECTOR N 6 WITH GUSTS BACK SECTOR W BY 28/0600 BACK SECTOR S
BY 28/1200 PROB OF ISOL SH RAIN IMPR DURING THE EARLY MORNING VIS MODERATE TO
GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 8 WITH GUSTS DECR
7/6 WITH GUSTS BY 28/0600 VEER SECTOR N BY 28/2100 PROB OF RAIN AND SNOW MIXTURE
VIS VERY POOR TO POOR
W OF 30 - N OF 45S: SECTOR W 6/5 WITH GUSTS VEER SECTOR N 6 WITH GUSTS BY
28/1500 PROB OF RAIN STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS
MODERATE OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: VRB 4/3 INCR
SECTOR N 5/6 WITH GUSTS BY 28/0300 BACK SW BY 28/0900 PROB OF RAIN NEXT ISOL
RAIN VIS MODERATE OCNL POOR
E OF 50 - S OF 45S: SECTOR W 6/5 WITH GUSTS BACK SECTOR S 6 WITH GUSTS BY
28/1800 PROB OF ISOL RAIN VIS MODERATE
W OF 50 - N OF 45S: SECTOR N 5 WITH GUSTS BACK SECTOR W 6 WITH GUSTS BY 28/0300
BACK SECTOR S BY 28/1800 PROB OF RAIN NEXT ISOL RAIN VIS MODERATE
REST OF THE AREA: SECTOR E 4 VEER SECTOR S 5/6 WITH GUSTS BY 28/0900 PROB OF
ISOL RAIN VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR S 7 GUST WITH
8 INTENSITY VEER SECTOR W BY 28/0600 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
E OF 30 - S OF 55S: VRB 5 INCR SECTOR N 6 WITH GUSTS BY 28/0600 BACK SECTOR W
BY 28/1200 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 7/8 WITH GUSTS BACK SW 7 WITH GUSTS BY 28/1800 PROB
OF SNOW FALL VIS VERY POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR W 6/7 GUST WITH 8
INTENSITY BACK SECTOR S BY 28/1800 PROB OF RAIN AND SNOW MIXTURE VIS POOR OCNL
VERY POOR
REST OF THE AREA: SECTOR W 7/6 GUST WITH 8 INTENSITY BACK SECTOR S BY 28/0600
PROB OF SNOW FALL VIS POOR OCNL VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 7/6 WITH GUSTS PROB OF SNOW FALL VIS POOR
OCNL VERY POOR
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