WWST02 SABM 200000

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-09-20, 00:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1 GALE WARNING:

WARNING 429: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR N

WITH GUST BETWEEN 35S-40S 40W-50W FROM 20/2100

WARNING 428: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR S

WITH GUST IN PENINSULA DE VALDES COASTS GOLFO DE SAN JORGE COASTS FROM 20/2100

WARNING 427: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 WITH GUST IN

SOUTH EAST AREA (50S- 60S AND 20W- 40W) UNTIL 20/0900





PART 2 GENERAL SYNOPSIS AT 21:00UTC

191400 UTC 1.SEA ICE LIMIT 5529S 02000W 5408S 02617W 5336S 03217W 5536S 03757W

5710S 04316W 5821S 04813W 5954S 05248W 6232S 05655W 6252S 06033W 6358S 06336W

6017S 06558W 6051S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5742S 04531W 28X25NM

D33B 5934S 04550W 21X12NM A76C 5430S 02629W 17X6NM 3.ICEBERGS SMALLER THAN 10NM

D32 5701S 03820W 9X6NM ICEBERG1 57181S 04733W 5X3NM ICEBERG2 5910S 05042W 5X3NM

ICEBERG3 5621S 05024W 4X3NM ICEBERG4 5807S 04958W 3X1NM 4.ICEBERGS AREA A5600S

02000W 5000S 02000W 5900S 04800W 5300S 04800W 5000S 04000W B5900S 06200W 6500S

06500W 5900S 04800W 5300S 04800W

HIGH 1026HPA 33S 37W MOV E

LOW 993HPA 41S 78W MOV E DPN EXTENDS CFNT AT 43S 78W 33S 77W 27S 88W MOV E





PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-21

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR N 4 BACK SECTOR S 5/6 BY 20/1800 PROB OF HVY

STORMS STARTING EVENING VIS GOOD TO POOR

OUTER RIO DE LA PLATA: SECTOR N 4 BACK SECTOR S 5/6 WITH GUSTS BY 20/1800 PROB

OF HVY STORMS STARTING EVENING VIS GOOD TO POOR

URUGUAY SOUTH EAST COASTS: SECTOR N 5/6 WITH GUSTS PROB OF SH DURING THE EVENING

HVY STORMS TOWARDS NIGTH VIS GOOD TO POOR

MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5/7 WITH GUSTS BACK SW 6/7 WITH

GUSTS BY 20/2100 INCR PROB OF SH HVY STORMS STARTING EVENING VIS MODERATE TO

POOR

RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/7 WITH GUSTS BACK SECTOR W

5/7 WITH GUSTS BY 20/1200 INCR 7/8 WITH GUSTS BY 20/2300 PROB OF SH STORMS

STARTING EARLY MORNING VIS MODERATE TO POOR

PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/7 WITH GUSTS BACK SW 7/8

WITH GUSTS BY 20/2100 INCR PROB OF RAIN STORMS HVY RAIN TOWARDS NIGTH VIS

MODERATE TO VERY POOR

GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 4 BACK SECTOR S 5/6 WITH GUSTS

BY 20/0900 INCR 8 WITH GUSTS BY 20/2100 PROB OF RAIN HVY RAIN STARTING EVENING

VIS MODERATE TO VERY POOR

SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 5/7 WITH GUSTS PROB OF SH VIS

MODERATE TO POOR

FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 5/7 WITH GUSTS PROB OF SH RAIN AND

SNOW MIXTURE VIS MODERATE TO POOR

ISLAS MALVINAS COASTS: SECTOR S 5/6 WITH GUSTS INCR 6/7 WITH GUSTS BY 20/1800

PROB OF SH VIS MODERATE TO POOR



OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SW 4/5 VEER SECTOR W 5/4 BY 20/1500

VIS GOOD TO MODERATE

 E OF 40W: SECTOR W 5 VEER SECTOR N 6/7 WITH GUSTS BY 20/1500 INCR PROB OF RAIN

TOWARDS NIGTH VIS MODERATE OCNL POOR

 E OF 50W: SECTOR N 6/7 WITH GUSTS INCR 7/8 WITH GUSTS BY 20/1800 PROB OF HVY

RAIN STARTING EVENING VIS VERY POOR TO POOR

 REST OF THE AREA: SECTOR N 5/7 WITH GUSTS PROB OF SH STORMS TOWARDS NIGTH VIS

MODERATE OCNL POOR

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 5/6 WITH GUSTS PROB

OF SH VIS MODERATE

 REST OF THE AREA: SECTOR W 5/6 WITH GUSTS INCR 6/7 GUST WITH 8 INTENSITY BY

20/1500 PROB OF ISOL RAIN VIS MODERATE TO POOR

CENTRAL WEST AREA (40S- 50S AND 40W- 60W) W OF 55 - S OF 45S: SECTOR N 5/6 WITH

GUSTS BACK SECTOR S 7 GUST WITH 8 INTENSITY BY 20/1500 INCR 8 WITH GUSTS BY

20/2300 PROB OF HVY RAIN VIS MODERATE TO VERY POOR

 REST OF THE AREA: SECTOR N 5/7 GUST WITH 8 INTENSITY PROB OF RAIN VIS MODERATE

TO POOR

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

SECTOR W 6/5 WITH GUSTS BY 20/0900 PROB OF SH VIS POOR TO MODERATE

 REST OF THE AREA: SECTOR N 8/7 WITH GUSTS BACK SECTOR W 5 WITH GUSTS BY 20/0600

PROB OF SH RAIN AND SNOW MIXTURE VIS POOR TO MODERATE

SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - S OF 55S: SECTOR W 5 BACK

SECTOR S BY 20/2100 INCR PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE

 W OF 50 - N OF 55S: SECTOR W 5 BACK SECTOR S 5 BY 20/2100 PROB OF SH HVY RAIN

TOWARDS NIGTH VIS MODERATE OCNL POOR

 REST OF THE AREA: SECTOR W 5 BACK SECTOR S 6/7 WITH GUSTS BY 20/1200 PROB OF SH

RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR

DRAKE AREA (55S- 60S AND 60W- 67W): SW 5/6 WITH GUSTS BACK SECTOR S 6/7 WITH

GUSTS BY 20/0900 PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR

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