WWST02 SABM 201200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-08-20, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 385: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR S WITH

GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) FROM 21/0900





PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 1005HPA 42S 57W WKN EXTENDS CFNT42S 57W 40S 60W 39S 61W MOV NE

LOW 969HPA 59S 41W MOV E DPN EXP 27S 59W BY 21/1200 EXTENDS OFNT AT 58S 21W 62S

40W 57S 44W

191400 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 6001S 05124W 21X12NM

A81 5853S 05059W 28X25NM A76C 5257S 03010W 16X6NM 3.ICEBERGS SMALLER THAN 10NM

D33C 6156S 05423W 9X5NM ICEBERG1 6036S 05056W 5X3NM ICEBERG2 6105S 05349W 5X3NM

ICEBERG3 6125S 05346W 6X4NM ICEBERG4 6123S 05411W 2X1NM 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 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-21

COASTAL AREAS:

INNER RIO DE LA PLATA: VRB 3 BACK SECTOR S 4 WITH GUSTS BY 20/2100 MIST FOG

PATCHES DURING THE MORNING DISSIPATING VIS GOOD OCNL MODERATE

OUTER RIO DE LA PLATA: VRB 3 BACK SECTOR S 4 WITH GUSTS BY 20/2100 MIST FOG

PATCHES DURING THE MORNING DISSIPATING VIS GOOD OCNL MODERATE

URUGUAY SOUTH EAST COASTS: VRB 3 BACK SECTOR S 4 WITH GUSTS BY 20/2100 MIST FOG

PATCHES DURING THE MORNING DISSIPATING VIS GOOD OCNL MODERATE

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/5 WITH GUSTS BACK SECTOR S 6

WITH GUSTS BY 20/2100 VIS GOOD OCNL MODERATE

RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5 WITH GUSTS BACK SECTOR S

WITH GUSTS BY 20/1800 LOW PROB OF ISOL RAIN STARTING EVENING VIS GOOD OCNL

MODERATE

PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 6/5 WITH GUSTS LOW PROB OF

ISOL RAIN STARTING EVENING VIS GOOD OCNL MODERATE

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 6/5 WITH GUSTS LOW PROB OF ISOL

RAIN STARTING EVENING VIS GOOD OCNL MODERATE

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 6 WITH GUSTS PROB OF ISOL RAIN VIS

MODERATE

FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 7 WITH GUSTS RAIN VIS POOR

ISLAS MALVINAS COASTS: SECTOR S 7 WITH GUSTS RAIN VIS POOR.



OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) W OF 40W: SECTOR N 5/6 WITH GUSTS BACK SECTOR

S BY 21/0000 RAIN VIS POOR

 REST OF THE AREA: SECTOR W 5/7 VEER SECTOR N WITH GUSTS BY 21/0900 PROB OF RAIN

STARTING EVENING VIS MODERATE OCNL POOR

CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 5/6 WITH GUSTS PROB OF ISOL

RAIN VIS MODERATE

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 5/6 WITH GUSTS BACK SECTOR S

WITH GUSTS BY 20/1500 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE

SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 6/5 WITH GUSTS PROB OF RAIN

AND SNOW MIXTURE VIS MODERATE

SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR S 6/7 WITH GUSTS RAIN AND SNOW

MIXTURE VIS POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 7 WITH GUSTS INCR 8 WITH GUSTS BY

21/0900 RAIN AND SNOW MIXTURE VIS MODERATE TO POOR

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