1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-17, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 331: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH
GUST IN CENTRAL EAST AREA (40S- 50S AND 20W- 40W) FROM 18/0600
PART 2 GENERAL SYNOPSIS AT 09:00UTC
161400 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 6147S 05210W 21X12NM
A81 6112S 05327W 28X25NM A76C 5219S 03139W 16X6NM D33C 6315S 05259W 9X4NM A83
6238S 05051W 12X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6210S 05251W 6X3NM
ICEBERG2 6310S 05233W 5X2NM ICEBERG3 6253S 05303W 4X3NM ICEBERG4 6229S 05252W
2X1NM ICEBERG5 5956S 03538W 4X2NM 4.ICEBERGS AREA A6000S 02000W 4300S 02000W
5300S 03900W 6011S 03900W B6011S 03900W 5500S 03900W 5900S 05000W 6245S 05000W
C6245S 05000W 5900S 05000W 6400S 06716W 6700S 06716W
LOW 990HPA 45S 64W MOV E NC EXP 47S 36W BY 18/1200 EXTENDS CFNT AT 45S 64W 41S
62W 38S 61W MOV NE EXP 35S 54W 40S 46W 47S 36W BY 18/1200
LOW 996HPA 56S 50W MOV SE WKN EXTENDS OFNT AT 56S 50W 57S 21W 55S 49W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-18
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4 BACK SECTOR S BY 17/1800 PROB OF HVY STORMS
VIS MODERATE OCNL POOR
OUTER RIO DE LA PLATA: SECTOR N 4 BACK SECTOR S BY 17/1800 PROB OF HVY STORMS
VIS MODERATE OCNL POOR
URUGUAY SOUTH EAST COASTS: SECTOR N 4 BACK SECTOR S BY 18/0600 PROB OF HVY
STORMS VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4 BACK SECTOR S BY 18/0000 PROB
OF HVY STORMS IMPR STARTING NIGTH VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4 BACK SECTOR S BY 18/0300
LOW PROB OF SH VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 4/5 WITH GUSTS BACK SECTOR S
BY 17/1800 VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 5/6 WITH GUSTS RAIN VIS
MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 6/5 WITH GUSTS LOW PROB OF RAIN
AND SNOW MIXTURE VIS GOOD OCNL MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 5/4 LOW PROB OF ISOL RAIN AND SNOW
MIXTURE STARTING EVENING VIS GOOD OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR S 5/4 WITH GUSTS LOW PROB OF ISOL RAIN AND SNOW
MIXTURE VIS GOOD OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) W OF 30W: SECTOR N 6/7 WITH GUSTS INCR 7 GUST
WITH 8 INTENSITY BY 18/0600 PROB OF HVY STORMS VIS POOR
REST OF THE AREA: SECTOR W 4/5 VIS GOOD OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 5/6 WITH GUSTS VEER SECTOR N
8 WITH GUSTS BY 18/0600 PROB OF RAIN STARTING EVENING VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR N 5 WITH GUSTS BACK
SECTOR W BY 18/0000 SH RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE
REST OF THE AREA: SECTOR N 5 WITH GUSTS VEER SECTOR E WITH GUSTS BY 17/1500
PROB OF RAIN VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 4/5 WITH GUSTS VEER
SECTOR S BY 18/0300 PROB OF RAIN STARTING EVENING VIS MODERATE
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS VEER SECTOR E BY 18/0000 VIS GOOD
OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: VRB 4 VEER SECTOR S 5 WITH
GUSTS BY 17/1800 RAIN AND SNOW MIXTURE IMPR STARTING NIGTH VIS GOOD OCNL
MODERATE
REST OF THE AREA: VRB 4 BACK SECTOR W 5 WITH GUSTS BY 18/0000 LOW PROB OF SH
IMPR STARTING NIGTH VIS GOOD OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5 WITH GUSTS PROB OF RAIN AND SNOW
MIXTURE STARTING NIGTH VIS GOOD OCNL MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 17, 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 971HPA 71S 75W MOV E WKN
LOW 990HPA 62S 54W MOV E WKN
RIDGE 60S 40W 65S 40W 72S 40W MOV E WKN
161400 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 6147S 05210W 21X12NM A81 6112S 05327W 28X25NM A76C 5219S 03139W 16X6NM D33C 6315S 05259W 9X4NM A83 6238S 05051W 12X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6210S 05251W 6X3NM ICEBERG2 6310S 05233W 5X2NM ICEBERG3 6253S 05303W 4X3NM ICEBERG4 6229S 05252W 2X1NM ICEBERG5 5956S 03538W 4X2NM 4.ICEBERGS AREA A6000S 02000W 4300S 02000W 5300S 03900W 6011S 03900W B6011S 03900W 5500S 03900W 5900S 05000W 6245S 05000W C6245S 05000W 5900S 05000W 6400S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-18
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 7/8 WITH GUSTS BY 17/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 7/8 WITH GUSTS BY 18/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NOON VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 7/8 WITH GUSTS BY 17/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 7/8 WITH GUSTS BY 18/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NOON VIS MODERATE TO POOR
GERLACHE STRAIT : SECTOR N 4/5 BACK NW 5/7 WITH GUSTS BY 18/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : NE 5/6 BACK SECTOR N 4/5 BY 17/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NW 4/5 BACK SECTOR W 7 BY 18/0300 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 5/6 GUST WITH 8 INTENSITY BACK SW 7/8 BY 17/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 BACK SW 7/5 BY 17/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 5/6 BACK SW 4/3 BY 17/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 65S: NW 4/5 WITH GUSTS INCR NW 7 GUST WITH 8 INTENSITY BY 18/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 3/4 VEER SECTOR W 5/7 WITH GUSTS BY 18/0000 PROB OF FOG AND MIST IN PATCHES IMPR DURING THE NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 BACK SW 4/3 BY 17/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD=