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WWST02 SABM 311200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2025-03-31, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 131: LOW 979HPA AT 55S 44W PROVOKES WINDS FORCE 8 FROM SECTOR W WITH

GUST IN SOUTH WEST AREA (50S- 60S AND 40W- 60W)

WARNING 129: LOW 979HPA AT 55S 44W PROVOKES WINDS FORCE 8 WITH GUST BETWEEN

50S-60S AND 30W-40W





PART 2 GENERAL SYNOPSIS AT 09:00UTC

301400 UTC 1.SEA ICE LIMIT 7139S 02000W 7032S 02622W 6817S 02832W 6547S 03052W

6510S 03730W 6527S 04311W 6425S 04417W 6203S 04828W 6136S 05339W 6300S 05912W

6405S 06418W 6547S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5449S 03902W 40X32NM

A23B 5641S 03747W 10X2NM A76C 6159S 05226W 16X7NM A74A 6257S 05328W 30X18NM

3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6137S 05425W 9X3NM ICEBERG2 5525S 03545W

2X1NM ICEBERG3 6225S 04642W 8X3NM ICEBERG4 6221S 04240W 3X1NM ICEBERG5 6140S

05832W 2X1NM ICEBERG6 5650S 03535W 7X1NM ICEBERG7 6243S 04247W 2X1NM ICEBERG8

5632S 03451W 3X1NM ICEBERG9 6227S 05512W 2X1NM ICEBERG10 5643S 03752W 4X1NM

ICEBERG11 5449S 03752W 3X1NM ICEBERG12 5500S 03756W 2X1NM 4.ICEBERGS AREA A:

7250S 02000W 4300S 02000W 4300S 02300W 7442S 02300W B: 7442S 02300W 5300S 02300W

5000S 03200W 5400S 04100W 6612S 04100W C: 6612S 04100W 6000S 04100W 5600S 05000W

6302S 06716W 6638S 06716W

LOW 979HPA 55S 44W MOV SE DPN EXP 60S 36W BY 01/1200 EXTENDS CFNT AT 55S 44W 42S

50W 32S 56W MOV SE

STRONG BARIC GRADIENT 56S 72W 46S 57W 51S 50W 56S 65W MOV NE





PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-4-1

COASTAL AREAS:

INNER RIO DE LA PLATA: SW 6/5 WITH GUSTS BACK SE 4 BY 1/0300 ISOL RAIN IMPR

FROM 31/1800 VIS MODERATE TO GOOD

OUTER RIO DE LA PLATA: SW 6/5 WITH GUSTS BACK SE 4 BY 1/0300 ISOL RAIN IMPR FROM

31/1800 VIS MODERATE TO GOOD

URUGUAY SOUTH EAST COASTS: SW 7/6 WITH GUSTS BACK SW 5 BY 1/0600 ISOL RAIN IMPR

FROM 31/2100 VIS MODERATE TO GOOD

MAR DEL PLATA COASTS(36�17S - 38�30S): SECTOR S 6/5 WITH GUSTS VEER SECTOR W 4

BY 1/0300 ISOL RAIN IMPR FROM 31/1800 MIST DURING THE MORNING VIS GOOD OCNL

MODERATE

RINCON BAHIA BLANCA COASTS(38�30S - 41�S): SW 5 VEER NW BY 1/0300 VIS GOOD

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

1/0300 VIS GOOD

GOLFO DE SAN JORGE COASTS(45�S - 48�S): SECTOR W 5 VEER SECTOR N 6/7 WITH GUSTS

BY 1/0000 VIS GOOD

SOUTH PATAGONIA COASTS(48�S - 54�S): SW 6 WITH GUSTS VEER NW 6/7 GUST WITH 8

INTENSITY BY 1/0000 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL

MODERATE

FIN DEL MUNDO COASTS(54�S - 55�S): SW 6 WITH GUSTS VEER NW 6/7 GUST WITH 8

INTENSITY BY 1/0000 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL

MODERATE.

ISLAS MALVINAS COASTS: SW 7 GUST WITH 8 INTENSITY VEER NW 6/7 WITH GUSTS BY

1/0600 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE



OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NE 5 BACK SECTOR W BY 1/0000 HVY

RAIN IMPR FROM 31/2100 VIS MODERATE OCNL GOOD

 E OF 40W: NW 5/6 WITH GUSTS PROB OF RAIN STARTING NIGTH VIS GOOD TO MODERATE

 REST OF THE AREA: SECTOR N 6 WITH GUSTS BACK SECTOR S WITH GUSTS BY 31/1500 SH

RAIN IMPR STARTING EVENING VIS MODERATE TO GOOD

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

OF RAIN TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE

 REST OF THE AREA: NW 5/6 WITH GUSTS BACK SW 6/7 WITH GUSTS BY 1/0300 PROB OF

RAIN STARTING EVENING VIS GOOD TO MODERATE

CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 30W: SECTOR N 7 WITH GUSTS BACK

GUST WITH 8 INTENSITY VIS GOOD

 REST OF THE AREA: SW 7 WITH GUSTS VEER NW 5/6 WITH GUSTS BY 1/0900 PROB OF ISOL

RAIN IMPR FROM 31/2100 VIS MODERATE TO GOOD

SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: NW 7/6 WITH GUSTS ISOL RAIN

VIS MODERATE OCNL POOR

 REST OF THE AREA: NW 7/8 WITH GUSTS RAIN SPELLS OF GOOD WEATHER VIS MODERATE

OCNL POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SW 8 WITH GUSTS RAIN AND SNOW

MIXTURE IMPR STARTING EARLY MORNING VIS POOR TO MODERATE

 REST OF THE AREA: SW 8 WITH GUSTS DECR 7/6 WITH GUSTS BY 1/0300 RAIN AND SNOW

MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SW 7 GUST WITH 8 INTENSITY VEER NE 5/6 WITH

GUSTS BY 1/0000 PROB OF RAIN STARTING EARLY MORNING VIS GOOD OCNL MODERATE

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