WWST02 SABM 230000
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-23, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 391: LOW 987HPA AT 46S 42W DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR
W WITH GUST BETWEEN 35S-40S AND 35W-55W
WARNING 389: LOW 987HPA AT 46S 42W DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR
S WITH GUST BETWEEN 40S-60S AND 45W-55W


PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 987HPA 46S 42W DPN EXTENDS CFNT AT 43S 40W 40S 45W 35S 55W
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-24
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 4/3 VIS GOOD
OUTER RIO DE LA PLATA: SW 5/4 SECTOR S 4 BY 23/1200 SE 4/3 BY 23/2100 UNSTABLE
DURING THE EARLY MORNING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SW 6 WITH GUSTS DECR 4 BY 23/2100 PROB OF SH DURING
THE EVENING IMPR VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(36�17S - 38�30S): SW 7/6 WITH GUSTS DECR 6/5 WITH GUSTS BY
23/1500 DECR 5/4 BY 23/2100 PROB OF SH VIS POOR TO MODERATE
RINCON BAHIA BLANCA COASTS(38�30S - 41�S): SECTOR S 6 WITH GUSTS DECR 5/4 BY
23/1200 DECR 3 BY 23/1800 PROB OF SH RAIN DURING THE MORNING IMPR VIS MODERATE
TO GOOD OCNL POOR
PENINSULA DE VALDES COASTS(41�S - 45�S): SECTOR S 6/5 WITH GUSTS DECR 5/4 BY
23/0900 SECTOR N 3/4 BY 23/1800 PROB OF SH DURING THE EARLY MORNING IMPR VIS
MODERATE TO GOOD
GOLFO DE SAN JORGE COASTS(45�S - 48�S): SECTOR S 5/4 DECR 4/3 BY 23/0900 SECTOR
N 4 BY 23/1800 UNSTABLE DURING THE EARLY MORNING IMPR VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48�S - 54�S): SECTOR S 5/3 SECTOR N 4/5 BY 23/1500 INCR 5
BY 23/2200 UNSTABLE VIS MODERATE TO GOOD
FIN DEL MUNDO COASTS(54�S - 55�S): SW 4 W 4 BY 23/1500 NW 4/5 BY 23/2200 PROB OF
SH VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR S 6/5 WITH GUSTS DECR 5/4 BY 23/1200 W 4 BY
23/1800 PROB OF SH RAIN AND SNOW MIXTURE NXT SH OF RAIN VIS MODERATE OCNL POOR

OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 5 WITH GUSTS SECTOR N 8 WITH
GUSTS BY 23/1800 PROB OF RAIN VIS MODERATE TO POOR
 E OF 40W: NW 6/7 WITH GUSTS INCR 8 WITH GUSTS BY 23/0600 DECR SECTOR W 7 WITH
GUSTS BY 23/1800 PROB OF RAIN VIS MODERATE TO POOR
 E OF 50W: SECTOR W 8 WITH GUSTS SW 7/6 WITH GUSTS BY 23/1500 PROB OF RAIN VIS
POOR
 REST OF THE AREA: SECTOR W 8 WITH GUSTS VEER SW 7/6 BY 23/0600 DECR 6/5 WITH
GUSTS BY 23/1800 PROB OF SH RAIN VIS POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: NW 5/7 WITH GUSTS SECTOR N
7/8 WITH GUSTS BY 23/1500 PROB OF RAIN VIS MODERATE TO POOR
 W OF 30 - N OF 45S: SECTOR N 7/8 WITH GUSTS SECTOR W 8 WITH GUSTS BY 23/1500
PROB OF RAIN VIS POOR
 REST OF THE AREA: SECTOR S 5 WITH GUSTS INCR 8/9 WITH GUSTS BY 23/1500 PROB OF
RAIN VIS MODERATE TO VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 8 WITH GUSTS PROB
OF SH OF RAIN SH OF SNOW RAIN AND SNOW MIXTURE VIS POOR
 REST OF THE AREA: SECTOR S 8/7 WITH GUSTS DECR 7/6 WITH GUSTS BY 23/1500 DECR 6
BY 23/2100 PROB OF SH RAIN AND SNOW MIXTURE TOWARDS NIGTH IMPR VIS POOR TO
MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SW 5 WITH GUSTS
SECTOR E 7 BY 23/1200 INCR 8 WITH GUSTS BY 23/2100 WORSENING WITH PROB OF RAIN
VIS MODERATE TO POOR
 W OF 30 - N OF 55S: SE 6/7 WITH GUSTS INCR 8/9 WITH GUSTS BY 23/1200 PROB OF SH
NXT RAIN VIS VERY POOR TO POOR
 REST OF THE AREA: SECTOR S 6/5 WITH GUSTS UNSTABLE VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 45 - N OF 55S: SECTOR S 7 WITH
GUSTS INCR SECTOR S 8 WITH GUSTS BY 23/1800 PROB OF SH OF RAIN SH OF SNOW VIS
MODERATE TO POOR
 W OF 50W: SECTOR S 6 WITH GUSTS SECTOR W 4 WITH GUSTS BY 23/1500 PROB OF SH
RAIN AND SNOW MIXTURE VIS MODERATE
 REST OF THE AREA: SECTOR S 7/6 WITH GUSTS DECR 5 BY 23/1800 PROB OF SH RAIN AND
SNOW MIXTURE VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 4 WITH GUSTS SECTOR W 4 BY 23/1800 PROB
OF SH VIS MODERATE TO GOOD
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