WWST02 SABM 211200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-06-21, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 274: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH

GUST BETWEEN 55S-60S 30W-55W FROM 21/1800

WARNING 273: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 WITH GUST IN DRAKE

AREA (55S- 60S AND 60W- 67W) UNTIL 22/0000

WARNING 272: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH

GUST BETWEEN 40S-50S AND 20W-30W UNTIL 21/2100

PART 2 GENERAL SYNOPSIS AT 09:00UTC

201400 UTC 1.SEA ICE LIMIT 6043S 02000W 5803S 02618W 5846S 03217W 5805S 03758W

5816S 04316W 5910S 04813W 6102S 05247W 6142S 05655W 6328S 06033W 6408S 06337W

6512S 06559W 6554S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5337S 03143W 16X7NM

3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4911S 02332W 4X1NM ICEBERG2 6145S 05555W

2X1NM 4.ICEBERGS AREA A6125S 02000W 4406S 02000W 5200S 03800W 5825S 03800W

B5825S 03800W 5200S 03800W 6000S 05500W 6106S 05500W C6106S 05500W 6000S 05500W

6200S 06716W 6829S 06716W

LOW 966HPA 49S 57W MOV E WKN EXTENDS CFNT AT 47S 38W 42S 53W 38S 57W MOV E

HIGH 1020HPA 47S 38W MOV E INTSF EXP 42S 22W BY 22/1200

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-22

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR N 4/5 BACK SECTOR S BY 22/0300 VIS GOOD

OUTER RIO DE LA PLATA: SECTOR N 4/5 BACK SECTOR S BY 22/0300 VIS GOOD

URUGUAY SOUTH EAST COASTS: SECTOR N 4/5 BACK SECTOR S BY 22/0300 VIS GOOD

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/5 BACK SECTOR W BY 22/0300 VIS

GOOD

RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4/5 PROB OF ISOL RAIN VIS

GOOD TO MODERATE

PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 4/5 PROB OF ISOL RAIN VIS GOOD

TO MODERATE

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 4/5 PROB OF ISOL RAIN VIS GOOD

OCNL MODERATE

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 4/5 VEER SECTOR W 5/6 WITH GUSTS

BY 21/1800 VIS GOOD

FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4/5 VIS GOOD

ISLAS MALVINAS COASTS: SECTOR W 3/4 PROB OF ISOL RAIN VIS GOOD TO MODERATE

OCEANIC AREAS:

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

21/2100 PROB OF ISOL SH RAIN VIS GOOD OCNL POOR

 REST OF THE AREA: SECTOR N 4/5 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR S 8 WITH GUSTS VEER

SECTOR S 4/5 BY 21/2100 PROB OF ISOL RAIN VIS VERY POOR TO POOR

 REST OF THE AREA: SECTOR E 4/5 BACK SECTOR N BY 21/2100 VIS GOOD

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR N 4/5 PROB OF SH RAIN VIS GOOD

OCNL POOR

SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR S 6/7 GUST WITH 8

INTENSITY VEER SECTOR W WITH GUSTS BY 22/0000 VIS POOR OCNL VERY POOR

 W OF 30W - N OF 55S: SECTOR W 4/5 WITH GUSTS INCR 6/7 WITH GUSTS BY 22/0000 VIS

MODERATE OCNL POOR

 REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY INCR 8 BY 21/1800 VIS VERY

POOR TO POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR N 4/5 WITH GUSTS BACK

SECTOR W WITH GUSTS BY 22/0900 VIS GOOD

 REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY INCR 8 WITH GUSTS BY

21/2100 PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR

DRAKE AREA (55S- 60S AND 60W- 67W): NW 8 WITH GUSTS BACK SECTOR W 6/7 WITH GUSTS

BY 21/2100 PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR

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