1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-10-17, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 456: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM E WITH GUST
BETWEEN 35S-40S AND 40W-20W FROM 18/0300
WARNING 455: LOW 993HPA AT 36S 48W MOV NE EXPECTED 34S 39W BY 18/1200 PROVOKES
WINDS FORCE 8 AROUND ITSELF WITH GUST IN URUGUAY SOUTH EAST COASTS NORTH AREA
(35S- 40S AND 20W- 55W)
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 993HPA 36S 48W MOV NE EXP 34S 39W BY 18/1200 EXTENDS OFNT AT 32S 51W 37S 46W
30S 39W
HIGH 1029HPA 45S 59W MOV SE WKN
161400 UTC 1.SEA ICE LIMIT 5351S 02000W 5300S 02618W 5354S 03218W 5544S 03758W
5653S 04316W 5808S 04814W 6207S 05247W 6248S 05654W 5936S 06033W 6028S 06336W
6156S 06559W 6212S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5455S 03832W 28X25NM
D33B 5657S 04528W 21X12NM D35 6009S 04345W 15X6 NM A83 6002S 04925W 12X7NM A85
5836S 04845W 10X3NM ICEBERG1 5836S 04743W 10X3NM 3.ICEBERGS SMALLER THAN 10NM
D32 5624S 03846W 9X6NM D33C 6145S 05412W 9X5NM ICEBERG2 5248S 04135W 5X3NM
ICEBERG3 5739S 04645W 5X3NM ICEBERG4 5550S 04413W 4X3NM ICEBERG5 5645S 04445W
2X1NM ICEBERG6 5733S 04817W 3X2NM ICEBERG7 5902S 04837W 2X1NM ICEBERG8 5916S
04411W 6X2NM ICEBERG9 5742S 04642W 2X1NM ICEBERG10 6000S 04414W 4X1NM ICEBERG11
5858S 06336W 2X1NM ICEBERG12 5955S 04249W 4X1NM ICEBERG13 6144S 05403W 2X1NM
ICEBERG14 5655S 04517W 2X1NM 4.ICEBERGS AREA A5427S 02000W 5300S 02000W 5000S
04000W 5906S 04159W B5906S 04159W 5000S 04000W 5958S 06544W 6153S 06600W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-18
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3/4 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR S 4/5 WITH GUSTS PROB OF SH SPELLS OF GOOD WEATHER
VIS MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR S 6/7 GUST WITH 8 INTENSITY DECR 5/4 BY
17/2100 PROB OF SH RAIN IMPR GRADUALLY VIS VERY POOR TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 5/4 WITH GUSTS DECR 4/4 BY
18/0300 PROB OF SH DURING THE MORNING VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 3 BACK SECTOR N 4/5 BY
18/0000 DECR 4/3 BY 18/0600 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS TOWARDS THE END
OF THE PERIOD WORSENING VIS POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 INCR 6/7 WITH GUSTS BY
18/0000 PROB OF MIST FOG PATCHES PROB OF SH TOWARDS THE END OF THE PERIOD VIS
POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/6 WITH GUSTS PROB OF MIST FOG
PATCHES PROB OF SH TOWARDS THE END OF THE PERIOD VIS POOR
FIN DEL MUNDO COASTS(54S - 55S): VRB 3 VEER SECTOR N 4/5 BY 17/1500 PROB OF
MIST FOG PATCHES STARTING NIGTH VIS GOOD TO MODERATE
ISLAS MALVINAS COASTS: SECTOR W 3/4 VEER SECTOR N 4/5 BY 18/0900 PROB OF MIST
FOG PATCHES STARTING EARLY MORNING VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: NW 5/6 WITH GUSTS VEER E 6/7 WITH
GUSTS BY 17/1800 INCR 7/8 WITH GUSTS BY 18/0300 PROB OF RAIN STORMS VIS VERY
POOR
REST OF THE AREA: SECTOR S 7/8 WITH GUSTS PROB OF RAIN STORMS PROB OF SH VIS
VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 5 WITH GUSTS VEER E
5/6 WITH GUSTS BY 18/0300 PROB OF RAIN STORMS TOWARDS THE END OF THE PERIOD VIS
MODERATE TO POOR
REST OF THE AREA: SECTOR W 7/6 WITH GUSTS VEER SECTOR S 4 BY 18/0000 VIS POOR
TO GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR S 5/4 VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SW 6/7 WITH GUSTS DECR 6/5 BY 18/0900
VIS POOR TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 4/3 VEER SECTOR N BY 18/1200
VIS GOOD
DRAKE AREA (55S- 60S AND 60W- 67W): N 3/4 INCR 4/5 BY 18/0000 TOWARDS THE END OF
THE PERIOD WORSENING VIS GOOD TO MODERATE
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