METAREA 6 bulletinset


HIGH SEAS FORECAST NORTH 60S
WWST02 SABM 190000

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-08-19, 00:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 383: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH

GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS UNTIL 19/0300

WARNING 382: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 WITH GUST BETWEEN

35S-40S AND 30W-20W UNTIL 19/0600

PART 2 GENERAL SYNOPSIS AT 21:00UTC

181400 UTC 1.SEA ICE LIMIT 5547S 02000W 5416S 02618W 5352S 03217W 5617S 03757W

5825S 04316W 5953S 04814W 6047S 05247W 6215S 05654W 6338S 06032W 6135S 06337W

6213S 06558W 6233S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6007S 05131W 21X12NM

A81 5853S 05059W 28X25NM A76C 5249S 03015W 16X6NM 3.ICEBERGS SMALLER THAN 10NM

D33C 6150S 05425W 9X5NM ICEBERG1 6029S 05055W 5X3NM ICEBERG2 6015S 05357W 5X3NM

ICEBERG3 6123S 05335W 6X4NM ICEBERG4 6128S 05403W 6X4NM 4.ICEBERGS AREA A5602S

02000W 4600S 02000W 5000S 03000W 5400S 03000W B5400S 03000W 5055S 03003W 5400S

04504W 6000S 04500W C6000S 04500W 5400S 04504W 6001S 05600W 6200S 05500W D6200S

05500W 6001S 05600W 6000S 06716W 6300S 06716W

LOW 999HPA 45S 25W MOV SE DPN EXTENDS CFNT AT MOV E

RIDGE 38S 56W 43S 50W 46S 46W

CFNT AT 55S 53W 53S 57W 48S 60W MOV E

CFNT AT GOLFO DE SAN JORGE COASTS MOV E

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-20

COASTAL AREAS:

INNER RIO DE LA PLATA: SE 4 BACK E LOW PROB OF ISOL RAIN MIST NEXT VIS MODERATE

OCNL GOOD

OUTER RIO DE LA PLATA: VRB 4 PROB OF ISOL RAIN MIST NEXT VIS MODERATE OCNL

GOOD

URUGUAY SOUTH EAST COASTS: SECTOR S 4 DECR VRB LOW PROB OF ISOL RAIN MIST NEXT

VIS MODERATE OCNL GOOD

MAR DEL PLATA COASTS(3617S - 3830S): NW 4/5 WITH GUSTS PROB OF MIST STARTING

EARLY MORNING VIS GOOD OCNL MODERATE

RINCON BAHIA BLANCA COASTS(3830S - 41S): NW 5/6 WITH GUSTS VIS GOOD

PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5/4 VEER SECTOR N BY 19/2100

VIS GOOD

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 6/5 WITH GUSTS DECR VRB 3/4 BY

19/0600 AFTERWARDS SECTOR W 5 BY 19/2300 PROB OF SH TOWARDS THE END OF THE

PERIOD VIS GOOD OCNL MODERATE

SOUTH PATAGONIA COASTS(48S - 54S) S OF - N OF 51S: SECTOR W 6/5 WITH GUSTS

DECR VRB BY 19/1200 AFTERWARDS SECTOR W 5 BY 19/2100 LOW PROB OF RAIN AND SNOW

MIXTURE TOWARDS THE END OF THE PERIOD VIS GOOD MODERATE

SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR W 8/7 WITH GUSTS

BACK SECTOR S BY 19/2300 PROB OF RAIN AND SNOW MIXTURE STARTING EVENING VIS VERY

POOR TO POOR

FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 8/7 GUST WITH 8 INTENSITY PROB OF

RAIN AND SNOW MIXTURE STARTING EVENING VIS VERY POOR POOR

ISLAS MALVINAS COASTS: SECTOR W 7/6 GUST WITH 8 INTENSITY PROB OF ISOL RAIN RAIN

AND SNOW MIXTURE VIS POOR

OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) W OF - E OF 30W: NW 8 WITH GUSTS BACK SW 6

WITH GUSTS BY 19/0600 PROB OF RAIN TOWARDS THE END OF THE PERIOD VIS VERY POOR

POOR

W OF 30 - E OF 40W: W 6 WITH GUSTS BACK SW BY 19/0600 PROB OF ISOL RAIN IMPR

TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL GOOD

REST OF THE AREA: SECTOR S 5 WITH GUSTS VEER SECTOR W 6 WITH GUSTS BY 19/0600

VIS GOOD

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR N 7 GUST

WITH 8 INTENSITY BACK SECTOR W 6 WITH GUSTS BY 19/0300 BACK SECTOR S BY 19/1800

PROB OF RAIN IMPR TOWARDS THE END OF THE PERIOD VIS POOR MODERATE

W OF 30 - N OF 45S: SECTOR W 6 WITH GUSTS PROB OF ISOL RAIN SPELLS OF GOOD

WEATHER VIS MODERATE

REST OF THE AREA: SECTOR S 6 WITH GUSTS VEER NE BY 19/1200 PROB OF ISOL RAIN

STARTING EARLY MORNING VIS GOOD MODERATE

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 6 WITH GUSTS LOW PROB OF

ISOL RAIN VIS MODERATE OCNL GOOD

SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 57S: SECTOR W 6 WITH GUSTS PROB OF

RAIN AND SNOW MIXTURE VIS POOR

REST OF THE AREA: VRB 4 INCR SECTOR E 6 WITH GUSTS BY 19/0600 PROB OF SNOW FALL

VIS POOR OCNL VERY POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: NW 6/7 GUST WITH 8 INTENSITY

BACK W BY 19/0300 PROB OF RAIN AND SNOW MIXTURE VIS POOR

REST OF THE AREA: NW 6 WITH GUSTS BACK W BY 19/0600 AFTERWARDS 7 GUST WITH 8

INTENSITY BY 19/1200 PROB OF SNOW FALL VIS POOR OCNL VERY POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7/6 GUST WITH 8 INTENSITY BACK

SECTOR S BY 19/2100 PROB OF RAIN AND SNOW MIXTURE VIS POOR

-----------------------------------------------------------------

NNNN=


HIGH SEAS FORECAST SOUTH 60S
WWAA02 SAWB 190000

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

00:00 UTC 19, AUGUST 2026.

NATIONAL WEATHER SERVICE (NWS)

SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS

PART 1 GALE WARNING:

1083/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR E WITH GUST IN 62S-64S 65W-54W UNTIL 19/2100

1084/2026 STRONG BARIC GRADIENT GERLACHE STRAIT MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR E WITH GUST IN 64S-66S 68W-64W UNTIL 19/0300

1085/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR E WITH GUST IN 61S-66S 45W-30W FROM 19/0900 UNTIL 20/1800

PART 2 GENERAL SYNOPSIS AT 21:00UTC

LOW 966HPA 62S 63W MOV SE DPN

LOW 972HPA 67S 68W MOV E WKN

LOW 973HPA 62S 75W MOV E WKN

HIGH 1001HPA 69S 40W MOV E WKN

181400 UTC 1.SEA ICE LIMIT 5547S 02000W 5416S 02618W 5352S 03217W 5617S 03757W 5825S 04316W 5953S 04814W 6047S 05247W 6215S 05654W 6338S 06032W 6135S 06337W 6213S 06558W 6233S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6007S 05131W 21X12NM A81 5853S 05059W 28X25NM A76C 5249S 03015W 16X6NM 3.ICEBERGS SMALLER THAN 10NM D33C 6150S 05425W 9X5NM ICEBERG1 6029S 05055W 5X3NM ICEBERG2 6015S 05357W 5X3NM ICEBERG3 6123S 05335W 6X4NM ICEBERG4 6128S 05403W 6X4NM 4.ICEBERGS AREA A5602S 02000W 4600S 02000W 5000S 03000W 5400S 03000W B5400S 03000W 5055S 03003W 5400S 04504W 6000S 04500W C6000S 04500W 5400S 04504W 6001S 05600W 6200S 05500W D6200S 05500W 6001S 05600W 6000S 06716W 6300S 06716W

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-20

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 4/5 WITH GUSTS BACK SW 6 WITH GUSTS BY 19/0900 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 6 WITH GUSTS BACK SW 5/4 BY 19/0900 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

MAR DE LA FLOTA COASTS W OF 60W: SW 3/4 INCR SW 5/6 WITH GUSTS BY 19/1500 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR E 7/8 WITH GUSTS VEER SE 6 WITH GUSTS BY 19/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

GERLACHE STRAIT : SECTOR E 7 GUST WITH 8 INTENSITY VEER SE 5/3 BY 19/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE

MARGARITA BAY : NE 5/4 BACK SECTOR N 4/3 BY 19/1500 PROB OF MIST VIS MODERATE TO GOOD

EREBUS Y TERROR GULF : SECTOR S 4/6 WITH GUSTS VEER SW 7 GUST WITH 8 INTENSITY BY 19/0900 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 6/7 WITH GUSTS VEER SECTOR W 7 GUST WITH 8 INTENSITY BY 19/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR TO MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 3/4 INCR SW 5/6 BY 19/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 3/4 VEER SW 3/4 BY 19/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE

NORTHERN WEDDELL SEA N OF 64S: SECTOR E 6/7 WITH GUSTS INCR SECTOR E 8 WITH GUSTS BY 19/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

NORTHERN WEDDELL SEA REST OF THE AREA: SE 5/6 WITH GUSTS BACK SECTOR E 7 GUST WITH 8 INTENSITY BY 19/1200 PROB OF FOG AND MIST IN PATCHES IMPR TOWARDS NOON VIS VERY POOR TO MODERATE

SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 5/6 WITH GUSTS VEER SE 5/4 BY 19/1200 PROB OF MIST VIS MODERATE TO GOOD=