1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-16, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 328: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 WITH GUST
BETWEEN 50S-55S 40W-20W FROM 16/1500
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 975HPA 57S 62W MOV SE DPN EXP BY 17/0000 EXTENDS CFNT AT FIN DEL MUNDO
COASTS MOV E
CFNT AT GOLFO DE SAN JORGE COASTS MOV E WKN
151400 UTC 1.SEA ICE LIMIT 5928S 02000W 5800S 02618W 5901S 03217W 5920S 03757W
5957S 04316W 6147S 04814W 6202S 05247W 6237S 05654W 6340S 06033W 6413S 06336W
6607S 06559W 6642S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6206S 05308W 21X12NM
A81 6114S 05254W 28X25NM A76C 5229S 03143W 16X6NM D33C 6318S 05300W 9X4NM A83
6243S 05052W 12X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6218S 05257W 6X3NM
ICEBERG2 6312S 05245W 5X2NM ICEBERG3 6301S 05255W 4X3NM ICEBERG4 6238S 05301W
2X1NM ICEBERG5 5956S 03538W 4X2NM 4.ICEBERGS AREA A6000S 02000W 4300S 02000W
5000S 03400W 5900S 03500W B5900S 03500W 5000S 03400W 5600S 04800W 6150S 04800W
C6150S 04800W 5800S 04800W 6300S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-17
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4/5 WITH GUSTS PROB OF ISOL SH RAIN VIS
MODERATE
OUTER RIO DE LA PLATA: SECTOR N 5 WITH GUSTS PROB OF SH ISOL STORMS VIS
MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 5/6 WITH GUSTS PROB OF RAIN ISOL STORMS
STARTING EVENING VIS GOOD TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5 WITH GUSTS PROB OF RAIN ISOL
STORMS VIS MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4 VEER SECTOR E BY 16/2100
LOW PROB OF RAIN ISOL SH TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/5 WITH GUSTS PROB OF ISOL
RAIN STARTING EVENING VIS GOOD TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 6/5 WITH GUSTS VEER SECTOR E
4/5 BY 16/2100 PROB OF HVY RAIN STARTING EVENING VIS GOOD TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 6 WITH GUSTS BACK SECTOR S 6/5 BY
16/2100 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 7/6 GUST WITH 8 INTENSITY BACK
SECTOR S BY 16/2100 PROB OF SNOW FALL VIS POOR OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR N 6 WITH GUSTS BACK SECTOR W 6/5 BY 16/0600 DECR
VRB 4 BY 16/2100 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 7 GUST WITH 8 INTENSITY
BACK SECTOR W 6 WITH GUSTS BY 16/0300 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER
VIS POOR OCNL MODERATE
REST OF THE AREA: SECTOR N 6 WITH GUSTS PROB OF RAIN ISOL STORMS STARTING EARLY
MORNING VIS GOOD TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 7 GUST WITH 8
INTENSITY BACK SECTOR W 7 WITH GUSTS BY 16/0300 PROB OF ISOL RAIN SPELLS OF GOOD
WEATHER VIS POOR OCNL MODERATE
REST OF THE AREA: SECTOR W 6 WITH GUSTS VEER SECTOR N 7/6 WITH GUSTS BY 16/1200
PROB OF ISOL RAIN STARTING EARLY MORNING VIS MODERATE TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR N 5/6 WITH
GUSTS PROB OF RAIN ISOL SH STARTING EARLY MORNING VIS GOOD TO MODERATE
E OF 50 - S OF 45S: SECTOR N 6/7 GUST WITH 8 INTENSITY BACK SECTOR W 6 BY
16/1800 PROB OF ISOL RAIN STARTING EARLY MORNING IMPR TOWARDS THE END OF THE
PERIOD VIS MODERATE OCNL POOR
W OF 50 - N OF 45S: SECTOR N 6/5 WITH GUSTS LOW PROB OF ISOL SH STARTING EARLY
MORNING NEXT IMPR VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR N 7/6 GUST WITH 8 INTENSITY BACK SECTOR W 5 BY 16/1200
DECR VRB 4 BY 16/2100 PROB OF ISOL RAIN IMPR DURING THE EARLY MORNING NEXT
WORSENING TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: W 6 WITH GUSTS VEER NW 8 WITH
GUSTS BY 16/1500 PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
REST OF THE AREA: NW 7 GUST WITH 8 INTENSITY BACK SECTOR S BY 16/1800 PROB OF
SNOW FALL VIS POOR OCNL VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR N 7 GUST WITH 8
INTENSITY BACK SECTOR W 6 WITH GUSTS BY 16/1200 PROB OF RAIN AND SNOW MIXTURE
VIS POOR OCNL VERY POOR TO MODERATE
E OF 50 - S OF 55S: SECTOR N 7 GUST WITH 8 INTENSITY BACK SECTOR S 6 WITH GUSTS
BY 16/0600 PROB OF RAIN AND SNOW MIXTURE NXT SNOW FALL VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR S 6 WITH GUSTS BACK SECTOR E BY 16/1200 BACK SECTOR N
BY 16/2100 PROB OF SNOW FALL VIS POOR OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W) N OF 57S: SECTOR W 7 GUST WITH 8 INTENSITY
PROB OF SNOW FALL VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR E 6 WITH GUSTS BACK SECTOR N BY 16/1500 BACK SW 7 GUST
WITH 8 INTENSITY BY 16/2100 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 15, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
969/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST UNTIL 15/1800
970/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-67S 60W-50W UNTIL 16/0600
971/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 63S-67S 40W-30W UNTIL 15/1800
972/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-65S 50W-35W UNTIL 16/0900
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 950HPA 62S 60W MOV SE DPN
LOW 951HPA 64S 53W MOV SE DPN
LOW 955HPA 68S 35W MOV SE DPN
LOW 973HPA 65S 74W MOV SE DPN
RIDGE 60S 35W 63S 42W 66S 45W MOV E WKN
141400 UTC 1.SEA ICE LIMIT 5928S 02000W 5800S 02618W 5901S 03217W 5920S 03757W 5957S 04316W 6147S 04814W 6202S 05247W 6237S 05654W 6340S 06033W 6413S 06336W 6607S 06559W 6642S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6206S 05308W 21X12NM A81 6114S 05254W 28X25NM A76C 5234S 03129W 16X6NM D33C 6323S 05300W 9X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6232S 05310W 6X3NM ICEBERG2 6316S 05255W 5X2NM ICEBERG3 6305S 05307W 4X3NM ICEBERG4 6251S 05313W 2X1NM ICEBERG5 5954S 03614W 4X2NM 4.ICEBERGS AREA A6000S 02000W 4300S 02000W 5000S 03400W 5900S 03500W B5900S 03500W 5000S 03400W 5600S 04800W 6150S 04800W C6150S 04800W 5800S 04800W 6300S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-16
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 15/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 9 WITH GUSTS BACK SW 5/6 WITH GUSTS BY 15/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 15/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 9 WITH GUSTS BACK SW 5/6 WITH GUSTS BY 15/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
GERLACHE STRAIT : SECTOR S 3/4 WITH GUSTS BACK SE 4/3 BY 15/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
MARGARITA BAY : NW 3/4 VEER NE 4/3 BY 15/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 8 WITH GUSTS BACK SECTOR S 5/4 WITH GUSTS BY 16/0300 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR S 4/5 VEER SW 4 BY 16/0000 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 S 4/5 WITH GUSTS VEER SW 4/5 BY 16/0300 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): SECTOR S 3/4 VEER SECTOR W 4/3 BY 16/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA N OF 65S: SECTOR N 7/8 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 15/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 7/8 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 15/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 BACK NE 4/5 WITH GUSTS BY 15/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE=