1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 20, JULY 2026.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 335: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 WITH GUST BETWEEN 35S-45S AND 20W-45W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 999HPA 37S 48W DPN EXP 45S 33W BY 20/1500 EXTENDS CFNT AT 36S 47W 32S 54W 26S 62W MOV NE
HIGH 1018HPA 43S 65W MOV E NC
191400 UTC 1.SEA ICE LIMIT 5753S 02000W 5712S 02618W 5848S 03217W 5925S 03757W 5954S 04317W 6044S 04814W 6151S 05247W 6234S 05655W 6342S 06032W 6413S 06337W 6532S 06559W 6616S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6131S 05131W 21X12NM A81 6104S 05319W 28X25NM A76C 5219S 03139W 16X6NM D33C 6312S 05307W 9X4NM A83 6235S 05041W 12X7NM D35 6156S 04442W 28X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6205S 05221W 6X3NM ICEBERG2 6310S 05237W 5X2NM ICEBERG3 6243S 05318W 4X3NM ICEBERG4 6223S 05243W 2X1NM ICEBERG5 5957S 03541W 4X2NM 4.ICEBERGS AREA A6016S 02000W 4300S 02000W 5300S 04100W 6010S 04100W B6010S 04100W 5300S 04100W 6000S 05500W 6220S 05500W C6220S 05500W 6000S 05500W 6500S 06716W 6640S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-21
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 4/5 WITH GUSTS PROB OF ISOL DRIZZLE RAIN VIS MODERATE
OUTER RIO DE LA PLATA: SE 4/5 WITH GUSTS PROB OF ISOL DRIZZLE RAIN VIS MODERATE
URUGUAY SOUTH EAST COASTS: SE 4/5 PROB OF ISOL DRIZZLE RAIN SPELLS OF GOOD WEATHER VIS MODERATE
MAR DEL PLATA COASTS(36º17S - 38º30S): SE 4 PROB OF DRIZZLE VIS MODERATE
RINCON BAHIA BLANCA COASTS(38º30S - 41ºS): SECTOR E 3/4 PROB OF ISOL DRIZZLE RAIN VIS MODERATE
PENINSULA DE VALDES COASTS(41ºS - 45ºS): SECTOR S 4/3 VEER VRB 3 BY 20/1200 PROB OF ISOL DRIZZLE TOWARDS NIGTH VIS MODERATE
GOLFO DE SAN JORGE COASTS(45ºS - 48ºS): SECTOR W 4/5 BACK SW BY 20/2100 PROB OF SH VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48ºS - 54ºS): SECTOR W 5 WITH GUSTS BACK BY 20/0900 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE
FIN DEL MUNDO COASTS(54ºS - 55ºS): SECTOR W 5/6 WITH GUSTS BACK SW PROB OF SNOW FALL VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS BACK SW WITH GUSTS PROB OF STORMS VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: NW 8 WITH GUSTS PROB OF RAIN VIS POOR
NORTH AREA (35S- 40S AND 20W- 55W) E OF 45W: NW 8 WITH GUSTS VEER 7/7 BY 20/1500 BACK SE 5 WITH GUSTS BY 20/2100 PROB OF ISOL RAIN STORMS VIS POOR
NORTH AREA (35S- 40S AND 20W- 55W) REST OF THE AREA: SECTOR S 5 BACK SE BY 20/ PROB OF ISOL RAIN STORMS VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR W 5 WITH GUSTS VEER NW 8/9 WITH GUSTS BY 20/1200 PROB OF RAIN VIS VERY POOR TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) W OF 30 - N OF 45S: SECTOR N 6 WITH GUSTS VEER BY 20/0900 VEER NW 8 WITH GUSTS PROB OF RAIN VIS VERY POOR TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - S OF 45S: NW 4/5 VEER 7/8 WITH GUSTS BY 19/1800 PROB OF RAIN VIS MODERATE TO VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) REST OF THE AREA: NW 4/5 BACK SW 4/6 WITH GUSTS BY 20/ VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR S 5 WITH GUSTS VEER SW 5/4 BY 20/1500 PROB OF SH RAIN VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) REST OF THE AREA: SECTOR W 5 WITH GUSTS PROB OF RAIN PROB OF SH OF RAIN RAIN AND SNOW MIXTURE STARTING EVENING VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: NW 6/5 WITH GUSTS VEER SW 6/7 WITH GUSTS BY 20/1800 PROB OF RAIN VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) REST OF THE AREA: SECTOR W 4/4 WITH GUSTS INCR 5/6 WITH GUSTS BY 20/2100 PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50 - N OF 55S: SECTOR W 4/5 WITH GUSTS INCR 5/6 WITH GUSTS BY 20/1800 PROB OF RAIN SNOW FALL VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) W OF 50 - N OF 55S: SECTOR W 5 WITH GUSTS INCR 6/7 WITH GUSTS BY 20/1500 PROB OF RAIN SNOW FALL VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) REST OF THE AREA: SECTOR W 5 WITH GUSTS BACK SECTOR S 5/6 WITH GUSTS BY 20/0900 PROB OF SNOW FALL VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 7/6 WITH GUSTS PROB OF SNOW FALL VIS MODERATE OCNL POOR
-----------------------------------------------------------------
NNNN=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 20, 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 987HPA 60S 47W MOV E DPN
HIGH 1003HPA 64S 54W MOV NE WKN EXTENDS RIDGE AT 64S 54W 67S 40W 70S 35W MOV E
RIDGE 65S 90W 64S 80W 63S 73W MOV NE INTSF
191400 UTC 1.SEA ICE LIMIT 5753S 02000W 5712S 02618W 5848S 03217W 5925S 03757W 5954S 04317W 6044S 04814W 6151S 05247W 6234S 05655W 6342S 06032W 6413S 06337W 6532S 06559W 6616S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6131S 05131W 21X12NM A81 6104S 05319W 28X25NM A76C 5219S 03139W 16X6NM D33C 6312S 05307W 9X4NM A83 6235S 05041W 12X7NM D35 6156S 04442W 28X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6205S 05221W 6X3NM ICEBERG2 6310S 05237W 5X2NM ICEBERG3 6243S 05318W 4X3NM ICEBERG4 6223S 05243W 2X1NM ICEBERG5 5957S 03541W 4X2NM 4.ICEBERGS AREA A6016S 02000W 4300S 02000W 5300S 04100W 6010S 04100W B6010S 04100W 5300S 04100W 6000S 05500W 6220S 05500W C6220S 05500W 6000S 05500W 6500S 06716W 6640S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-21
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 VEER SECTOR W 5/6 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SE 5/7 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY 20/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 VEER SECTOR W 5/6 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SE 5/7 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY 20/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : NE 4/3 VEER SE 3/4 BY 20/1200 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
MARGARITA BAY : NE 3/4 VEER SECTOR E 4/3 BY 20/1200 PROB OF MIST WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SECTOR S 5/4 WITH GUSTS VEER SW 5/7 BY 20/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 4/5 WITH GUSTS INCR SW 5/6 BY 20/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5/7 WITH GUSTS VEER SECTOR W 7 GUST WITH 8 INTENSITY BY 20/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 5/6 WITH GUSTS VEER SECTOR W 7 GUST WITH 8 INTENSITY BY 20/1500 PROB OF FOG AND MIST IN PATCHES IMPR TOWARDS MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 65S: SECTOR S 4/5 WITH GUSTS VEER NW 5/6 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 4/5 WITH GUSTS VEER SECTOR W 7 GUST WITH 8 INTENSITY BY 20/1200 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 VEER NE 4/3 BY 20/1200 VIS GOOD=