WWST02 SABM 231200
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-23, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 389: LOW 978HPA AT 48S 38W MOV E DEEPENING EXPECTED BY 24/1200 PROVOKES
WINDS FORCE 9 AROUND ITSELF WITH GUST BETWEEN 35S-55S AND 20W-50W


PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 978HPA 48S 38W MOV E DPN EXP 48S 32W BY 24/1200 EXTENDS CFNT AT 35S 35W 45S
30W 50S 30W MOV E
HIGH 1030HPA 40S 70W MOV NE NC EXP 35S 58W BY 24/1200
221400 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 6016S 05008W 21X12NM
A81 5841S 05051W 28X25NM A76C 5322S 03005W 16X6NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6158S 05358W 9X5NM ICEBERG1 5935S 05020W 5X3NM ICEBERG2 6105S 05418W 5X3NM
ICEBERG3 6123S 05404W 6X4NM ICEBERG4 6112S 05418W 2X1NM ICEBERG5 6108S 05414W
3X1NM 4.ICEBERGS AREA A5600S 02000W 4500S 02000W 5200S 04500W 6000S 04500W
B5300S 04500W 6600S 04500W 6200S 06716W 6600S 06716W


PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-24
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3 BACK SECTOR E BY 23/1800 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR S 5/4 WITH GUSTS BACK SECTOR E 3 BY 23/1800 PROB
OF ISOL RAIN TOWARDS EVENING IMPR VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SW 6/3 WITH GUSTS PROB OF ISOL RAIN TOWARDS EVENING
IMPR VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(36�17S - 38�30S): SW 5/3 WITH GUSTS BACK SECTOR N WITH
GUSTS BY 24/0000 PROB OF ISOL RAIN DURING THE MORNING VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(38�30S - 41�S): SECTOR S 4/3 WITH GUSTS BACK SECTOR N
4 BY 23/1800 VIS GOOD
PENINSULA DE VALDES COASTS(41�S - 45�S): SECTOR S 4/3 BACK SECTOR N 6 WITH GUSTS
BY 23/1500 VIS GOOD
GOLFO DE SAN JORGE COASTS(45�S - 48�S): SECTOR N 3/6 WITH GUSTS VIS GOOD
SOUTH PATAGONIA COASTS(48�S - 54�S): SECTOR N 4/6 WITH GUSTS VIS GOOD
FIN DEL MUNDO COASTS(54�S - 55�S): SECTOR N 4/5 WITH GUSTS PROB OF ISOL SNOW
FALL TOWARDS THE END OF THE PERIOD IMPR VIS MODERATE TO GOOD
ISLAS MALVINAS COASTS: SECTOR W 3/4 VEER SECTOR N 5 WITH GUSTS BY 23/2100 PROB
OF ISOL SNOW FALL TOWARDS THE END OF THE PERIOD IMPR VIS MODERATE TO GOOD

OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 50W: SECTOR W 8 WITH GUSTS PROB OF RAIN
VIS VERY POOR
 REST OF THE AREA: SECTOR S 6/5 WITH GUSTS PROB OF RAIN TOWARDS THE END OF THE
PERIOD IMPR VIS POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 8 WITH GUSTS PROB
OF RAIN VIS VERY POOR
 REST OF THE AREA: SECTOR S 7/9 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE SNOW
FALL VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 8/9 WITH GUSTS PROB
OF RAIN AND SNOW MIXTURE SNOW FALL VIS VERY POOR
 REST OF THE AREA: SECTOR S 6/4 WITH GUSTS VEER SECTOR N BY 24/0300 PROB OF RAIN
AND SNOW MIXTURE SNOW FALL TOWARDS THE END OF THE PERIOD IMPR VIS POOR TO
MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR E 8/9 WITH GUSTS PROB
OF RAIN AND SNOW MIXTURE SNOW FALL VIS VERY POOR
 REST OF THE AREA: SECTOR S 5/4 WITH GUSTS PROB OF ISOL SNOW FALL VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: SECTOR S 8/7 WITH
GUSTS PROB OF SNOW FALL VIS VERY POOR TO POOR
 W OF 50 - N OF 55S: SECTOR S 6/4 WITH GUSTS VEER SECTOR W BY 24/0000 PROB OF
ISOL SNOW FALL VIS MODERATE OCNL POOR
 REST OF THE AREA: SECTOR W 4/5 WITH GUSTS PROB OF ISOL SNOW FALL VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 3 BACK SECTOR N 4 WITH GUSTS BY
23/1500 PROB OF ISOL SNOW FALL VIS MODERATE OCNL GOOD
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