1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-17, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 330: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 55S-60S AND 50W-60W UNTIL 17/1200
WARNING 328: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 50S-60S AND 30W-20W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
CFNT AT 59S 31W 53S 40W 50S 48W MOV NE
LOW 984HPA 56S 58W 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-18
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4 WITH GUSTS DECR 4/3 WITH GUSTS BY 17/0900 PROB
OF SH STORMS VIS GOOD TO MODERATE
OUTER RIO DE LA PLATA: NE 4 WITH GUSTS BACK SECTOR N 4/5 WITH GUSTS BY 17/1500
VIS GOOD TO MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 5/6 WITH GUSTS PROB OF SH STORMS VIS
MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/5 WITH GUSTS BACK SW 4 WITH
GUSTS BY 17/1800 PROB OF SH STORMS STARTING EARLY MORNING VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4 WITH GUSTS BACK SW 4 WITH
GUSTS BY 17/0900 PROB OF SH TOWARDS THE END OF THE PERIOD VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): NE 4 BACK SW 4/5 WITH GUSTS UNSTABLE
FROM 17/0600 VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 4/5 WITH GUSTS VEER SECTOR S
6/7 GUST WITH 8 INTENSITY BY 17/0600 VEER SW 7/6 WITH GUSTS BY 17/1800 PROB OF
RAIN VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S) N OF 51S: SE 5 WITH GUSTS INCR 6/7 GUST WITH
8 INTENSITY BY 17/0900 PROB OF RAIN SNOW FALL VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SE 6/5 WITH GUSTS BACK VRB
4/3 BY 17/1800 PROB OF RAIN SNOW FALL VIS MODERATE TO GOOD
FIN DEL MUNDO COASTS(54S - 55S): SE 6/5 WITH GUSTS BACK VRB 4/3 BY 17/1800
PROB OF RAIN SNOW FALL VIS MODERATE TO GOOD
ISLAS MALVINAS COASTS: SE 6/7 GUST WITH 8 INTENSITY PROB OF RAIN SNOW FALL
DURING THE MORNING VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SW 4/5 WITH GUSTS VEER SW 4 WITH
GUSTS BY 17/0600 VIS GOOD
E OF 40 - W OF 30W: SECTOR N 4/5 WITH GUSTS INCR 6/7 GUST WITH 8 INTENSITY BY
17/2100 PROB OF SH TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
E OF 50 - W OF 40W: SECTOR N 5/6 WITH GUSTS INCR 7 GUST WITH 8 INTENSITY BY
17/0900 INCR 7/8 WITH GUSTS BY 17/2100 PROB OF RAIN STORMS VIS MODERATE TO
POOR
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS INCR 7 GUST WITH 8 INTENSITY BY
17/0900 BACK NW 6/5 WITH GUSTS BY 17/2100 PROB OF RAIN STORMS VIS MODERATE OCNL
POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45 - E OF 30W: SECTOR W 5 WITH
GUSTS VIS GOOD
S OF 45 - E OF 30W: NW 6/7 GUST WITH 8 INTENSITY BACK SECTOR W 5/4 WITH GUSTS
BY 17/1500 PROB OF RAIN IMPR STARTING EVENING VIS MODERATE OCNL POOR
REST OF THE AREA: NW 6/5 WITH GUSTS INCR 6/7 GUST WITH 8 INTENSITY BY 17/1800
PROB OF RAIN STORMS STARTING EVENING VIS MODERATE TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 5 WITH GUSTS BACK
NW 7/6 GUST WITH 8 INTENSITY BY 17/1500 PROB OF RAIN STORMS VIS MODERATE TO
POOR
N OF 45 - W OF 50W: SECTOR N 5 WITH GUSTS BACK SECTOR W 5/6 WITH GUSTS BY
17/1800 PROB OF RAIN STORMS VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR E 4 VEER SE 7 GUST WITH 8 INTENSITY BY 17/1800 PROB OF
RAIN VIS MODERATE TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55 - E OF 30W: NW 8/7 WITH GUSTS
BACK SW 6/5 WITH GUSTS BY 17/0900 PROB OF RAIN SNOW FALL IMPR STARTING EARLY
MORNING VIS POOR TO MODERATE
S OF 55 - E OF 30W: NW 8/7 WITH GUSTS BACK SW 8/7 BY 17/0900 PROB OF RAIN SNOW
FALL IMPR STARTING EVENING VIS POOR OCNL MODERATE
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS BACK SECTOR E 5 WITH GUSTS BY 17/1200
PROB OF HVY RAIN VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55 - E OF 50W: NW 5 WITH GUSTS BACK
SE 5/6 WITH GUSTS BY 17/1200 PROB OF RAIN VIS MODERATE TO POOR
S OF 55 - E OF 50W: VRB 3/4 BACK SECTOR N 4/5 WITH GUSTS BY 17/1500 PROB OF
ISOL RAIN SNOW FALL VIS GOOD OCNL MODERATE
N OF 55 - W OF 50W: SECTOR W 5 WITH GUSTS BACK SE 5/6 WITH GUSTS BY 17/1200
PROB OF RAIN VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 8/7 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 17/1200
PROB OF RAIN SNOW FALL VIS POOR TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SW 7/6 GUST WITH 8 INTENSITY VEER SECTOR W 5
WITH GUSTS BY 17/1200 PROB OF RAIN SNOW FALL IMPR STARTING EARLY MORNING VIS
MODERATE OCNL POOR TO GOOD
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 17, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
977/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 64S-70S 90W-80W UNTIL 17/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 971HPA 71S 85W MOV E DPN
LOW 983HPA 63S 60W MOV SE WKN
HIGH 993HPA 60S 48W MOV E INTSF EXTENDS RIDGE AT 60S 48W 65S 48W 72S 48W MOV E
RIDGE 60S 80W 63S 70W 65S 68W MOV NE INTSF
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-18
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 7/8 WITH GUSTS BY 17/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 3/4 BACK SECTOR W 5/6 WITH GUSTS BY 17/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 7/8 WITH GUSTS BY 17/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 3/4 BACK SECTOR W 5/6 WITH GUSTS BY 17/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
GERLACHE STRAIT : SECTOR E 3/4 BACK NE 4/5 BY 17/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS MORNING VIS GOOD TO MODERATE
MARGARITA BAY : NE 3/4 BACK SECTOR N 4/5 BY 17/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS MORNING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NW 4/5 BACK SW 5/4 BY 17/0900 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 7 GUST WITH 8 INTENSITY VEER NW 7/5 BY 17/1200 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 W 4/5 BACK SW 7/5 BY 17/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING 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: SW 4/5 VEER NW 5/6 BY 17/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 VEER SW 4/3 BY 17/1200 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): SE 4/3 VEER SW 4/5 BY 17/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD=