WWST02 SABM 191200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-04-19, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.



PART 1 GALE WARNING:

WARNING 166: LOW 990HPA AT 49S 58W MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8

FROM SECTOR W WITH GUST IN ISLAS MALVINAS COASTS BETWEEN 45S-60S AND 50W-60W

FROM 19/1800

WARNING 165: LOW 990HPA AT 49S 58W MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM

SECTOR S WITH GUST IN GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS UNTIL

19/1500



PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 990HPA 49S 58W MOV SE DPN EXP 55S 47W BY 20/1200 EXTENDS CFNT AT 49S 58W 41S

45W 35S 60W MOV E

LOW 1002HPA 40S 49W MOV E WKN EXTENDS OFNT AT 40S 49W 39S 50W 38S 48W

LOW 1002HPA 41S 28W MOV SE NC EXTENDS OFNT AT 47S 28W 40S 35W 37S 31W MOV SE

181400 UTC 1.SEA ICE LIMIT 6840S 02000W 6828S 02729W 6327S 03132W 6009S 03309W

6059S 03952W 6217S 05036W 6337S 05311W 6313S 05740W 6339S 06042W 6431S 06416W

6601S 06544W 6644S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5911S 03550W 16X7NM

3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4623S 02814W 6X3NM ICEBERG2 4848S 03004W

5X3NM ICEBERG3 4629S 02736W 4X2NM ICEBERG4 4656S 02738W 3X1NM ICEBERG5 5825S

03611W 3X1NM ICEBERG6 4319S 03357W 2X1NM 4.ICEBERGS AREA A6859S 02000W 4124S

02000W 4307S 03613W 6507S 03625W B6107S 03625W 4305S 03613W 6002S 05503W 6328S

05500W C6328S 05500W 6002S 05503W 6445S 06716W 6638S 06716W



PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-20

COASTAL AREAS:

INNER RIO DE LA PLATA: NW 3 BACK SECTOR S BACK SECTOR E 4 WITH GUSTS PROB OF

DRIZZLE TOWARDS THE END OF THE PERIOD VIS GOOD

OUTER RIO DE LA PLATA: SECTOR W 3 BACK SECTOR E 5 WITH GUSTS VIS GOOD OCNL

MODERATE

URUGUAY SOUTH EAST COASTS: SW 3 BACK SECTOR E VIS GOOD

MAR DEL PLATA COASTS(36�17S - 38�30S): SECTOR W 3 BACK SECTOR S 4/5 WITH GUSTS

BACK SECTOR E 4/3 PROB OF RAIN STARTING EARLY MORNING VIS GOOD TO MODERATE

RINCON BAHIA BLANCA COASTS(38�30S - 41�S): SW 3/4 BACK SECTOR E 3 PROB OF ISOL

RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE

PENINSULA DE VALDES COASTS(41�S - 45�S): SW 6/5 WITH GUSTS VEER SECTOR W 3/4

PROB OF ISOL RAIN STARTING EARLY MORNING VIS MODERATE TO GOOD

GOLFO DE SAN JORGE COASTS(45�S - 48�S): SW 8 WITH GUSTS DECR 6/5 BY 19/1500 VEER

SECTOR W 5/6 WITH GUSTS PROB OF ISOL RAIN STARTING EARLY MORNING VIS POOR TO

GOOD OCNL MODERATE

SOUTH PATAGONIA COASTS(48�S - 54�S): SW 8 WITH GUSTS DECR 6/5 BY 19/1500 VEER

SECTOR W 5/6 WITH GUSTS PROB OF HVY RAIN STARTING EARLY MORNING PROB OFISOL RAIN

TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

FIN DEL MUNDO COASTS(54�S - 55�S): SECTOR S 6 WITH GUSTS VEER SECTOR W 5/6 WITH

GUSTS PROB OF RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR

ISLAS MALVINAS COASTS: SECTOR S 6 WITH GUSTS VEER SECTOR W 6/8 WITH GUSTS BY

19/1800 DECR 6/5 BY 20/0600 PROB OF HVY RAIN IMPR TOWARDS NIGTH VIS POOR OCNL

VERY POOR



OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: NW 5/3 WITH GUSTS PROB OF ISOL SH

RAIN VIS MODERATE

 E OF 45W: NE 3 BACK SECTOR S 3/4 PROB OF ISOL RAIN STORMS VIS GOOD OCNL

MODERATE

 REST OF THE AREA: SW 6/5 WITH GUSTS BACK S 4/3 PROB OF ISOL SH RAIN IMPR

TOWARDS NIGTH VIS MODERATE OCNL POOR TO GOOD

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR E 6 WITH GUSTS VEER

SECTOR N WITH GUSTS PROB OF RAIN STORMS VIS POOR OCNL VERY POOR

 REST OF THE AREA: SECTOR E 4/3 VEER SECTOR W 3/4 WITH GUSTS PROB OF ISOL RAIN

VIS GOOD OCNL MODERATE

CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 5 WITH GUSTS BACK

SECTOR W 5/6 WITH GUSTS PROB OF ISOL RAIN STORMS VIS MODERATE OCNL POOR

 N OF 45 - W OF 50W: W 5/6 WITH GUSTS BACK SW 5/4 WITH GUSTS PROB OF ISOL RAIN

IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR

 REST OF THE AREA: SECTOR N 5/4 WITH GUSTS PROB OF ISOL SH RAIN VIS MODERATE

OCNL POOR

SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR N 3/5 WITH GUSTS PROB OF RAIN

SPELLS OF GOOD WEATHER VIS MODERATE

SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR N 5/6 WITH GUSTS PROB

OF RAIN VIS MODERATE OCNL POOR

 N OF 55 - W OF 50W: SECTOR N 5/6 WITH GUSTS VEER SECTOR W 8/6 WITH GUSTS BY

19/1800 PROB OF HVY RAIN VIS POOR OCNL VERY POOR

 REST OF THE AREA: SECTOR S 3/4 INCR 5/6 WITH GUSTS BY 19/2100 VEER SECTOR W 6/8

WITH GUSTS BY 20/0600 PROB OF HVY RAIN STARTING EVENING VIS GOOD TO POOR OCNL

GOOD TO VERY POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 6/5 WITH GUSTS VEER SECTOR N 5/6

WITH GUSTS PROB OF RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR

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