WWST02 SABM 201200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-04-20, 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 978HPA AT 56S 49W MOV E PROVOKES WINDS FORCE 8 AROUND ITSELF

WITH GUST





PART 2 GENERAL SYNOPSIS AT 09:00UTC

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

LOW 978HPA 56S 49W MOV E EXP 54S 34W BY 21/1200 EXTENDS CFNT AT 54S 34W 48S 40W

40S 45W MOV E

CFNT AT 57S 65W 55S 65W 48S 65W MOV E





PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-04-21

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR E 4/5 WITH GUSTS PROB OF DRIZZLE RAIN VIS GOOD TO

MODERATE

OUTER RIO DE LA PLATA: SECTOR E 4/5 WITH GUSTS PROB OF DRIZZLE RAIN VIS GOOD TO

MODERATE

URUGUAY SOUTH EAST COASTS: SECTOR E 4/5 WITH GUSTS PROB OF DRIZZLE RAIN VIS GOOD

TO MODERATE

MAR DEL PLATA COASTS(36�17S - 38�30S): SECTOR S 4 BACK SECTOR E BY 21/0300 PROB

OF ISOL RAIN VIS GOOD TO MODERATE

RINCON BAHIA BLANCA COASTS(38�30S - 41�S): SECTOR E 3/4 VIS GOOD

PENINSULA DE VALDES COASTS(41�S - 45�S): SECTOR W 4/5 VEER SECTOR N BY 21/1800

VIS GOOD

GOLFO DE SAN JORGE COASTS(45�S - 48�S): SECTOR W 5/6 WITH GUSTS VEER SECTOR N

WITH GUSTS BY 21/0000 VIS MODERATE

SOUTH PATAGONIA COASTS(48�S - 54�S): SECTOR W 6/7 WITH GUSTS VEER SECTOR N WITH

GUSTS BY 21/0300 VIS MODERATE OCNL POOR

FIN DEL MUNDO COASTS(54�S - 55�S): SECTOR W 6/7 WITH GUSTS VEER SECTOR N WITH

GUSTS BY 21/0300 VIS MODERATE OCNL POOR.

ISLAS MALVINAS COASTS: SECTOR W 4/5 WITH GUSTS VEER SECTOR N BY 21/0900 PROB OF

ISOL RAIN VIS GOOD OCNL MODERATE



OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 4/5 WITH GUSTS BACK SECTOR

S WITH GUSTS BY 21/0900 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE

 REST OF THE AREA: SECTOR S 4/5 WITH GUSTS BACK SECTOR E WITH GUSTS BY 21/0300

PROB OF ISOL RAIN VIS GOOD OCNL MODERATE

CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 4/5 WITH GUSTS INCR 6 WITH

GUSTS BY 21/0300 PROB OF ISOL RAIN VIS GOOD TO MODERATE OCNL POOR

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 6/7 WITH GUSTS PROB OF ISOL

RAIN VIS MODERATE TO POOR

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

6/7 WITH GUSTS BY 21/0000 PROB OF ISOL RAIN VIS MODERATE TO POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR N 6/7 WITH GUSTS BACK

SECTOR W 8 WITH GUSTS BY 20/1500 PROB OF SH RAIN VIS VERY POOR TO POOR

 REST OF THE AREA: SECTOR W 8 WITH GUSTS DECR 6/7 WITH GUSTS BY 21/0300 PROB OF

SH RAIN VIS VERY POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 5/6 WITH GUSTS BACK SECTOR W 4/5

WITH GUSTS BY 20/1800 VEER SECTOR N 6/7 WITH GUSTS PROB OF ISOL RAIN VIS

MODERATE TO POOR OCNL VERY POOR

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