1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-10-18, 00:00 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 UNTIL 18/1800
WARNING 455: LOW 993HPA AT 35S 46W MOV SE NOT CHANGE EXPECTED 37S 35W BY 18/2100
PROVOKES WINDS FORCE 8 FROM SECTOR S WITH GUST BETWEEN 35S-40S AND 40W-55W UNTIL
18/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
171400 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 5450S 03821W 28X25NM
D33B 5700S 04505W 21X12NM D35 6010S 04346W 15X6 NM A83 5959S 04929W 12X7NM A85
5849S 04817W 10X3NM ICEBERG1 5828S 04746W 10X3NM 3.ICEBERGS SMALLER THAN 10NM
D32 5634S 03848W 9X6NM D33C 6144S 05426W 9X5NM ICEBERG2 5244S 04139W 5X3NM
ICEBERG3 5738S 04630W 5X3NM ICEBERG4 5531S 04343W 4X3NM ICEBERG5 5645S 04445W
2X1NM ICEBERG6 5714S 04805W 3X2NM ICEBERG7 5911S 04834W 2X1NM ICEBERG8 5910S
04411W 6X2NM ICEBERG9 5741S 04629W 2X1NM ICEBERG10 6001S 04407W 4X1NM ICEBERG11
5858S 06336W 2X1NM ICEBERG12 5953S 04250W 4X1NM ICEBERG13 6141S 05409W 2X1NM
ICEBERG14 5658S 04457W 2X1NM ICEBERG15 5526S 04354W 2X1NM 4.ICEBERGS AREA A5512S
02000W 4956S 02000W 4952S 04500W 6050S 04500W B6050S 04500W 5345S 04500W 5908S
06716W 6622S 06716W
HIGH 1026HPA 44S 59W MOV E WKN EXP 45S 55W BY 18/2100
LOW 993HPA 35S 46W MOV SE NC EXP 37S 35W BY 18/2100
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-10-19
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 3 UNSTABLE VIS GOOD
OUTER RIO DE LA PLATA: SECTOR S 4/3 PROB OF DRIZZLE STARTING EARLY MORNING VIS
GOOD TO MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR S 6/5 WITH GUSTS PROB OF ISOL RAIN VIS
MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 5/4 PROB OF DRIZZLE STARTING
EARLY MORNING VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4/5 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6 WITH GUSTS VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6 GUST WITH 8 INTENSITY PROB OF
SH STARTING EARLY MORNING VIS POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/6 GUST WITH 8 INTENSITY PROB OF
SH STARTING EARLY MORNING VIS POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 4/6 WITH GUSTS PROB OF DRIZZLE NXT
RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
ISLAS MALVINAS COASTS: SECTOR N 4/5 VIS GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR E 8/7 WITH GUSTS PROB OF HVY
RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 8/7 WITH GUSTS PROB OF HVY RAIN NXT RAIN VIS VERY
POOR TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR E 6/7 WITH GUSTS PROB
OF ISOL RAIN NXT HVY RAIN VIS MODERATE TO POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 7 WITH GUSTS BACK SECTOR S 6/5 WITH GUSTS BY 18/0600
PROB OF ISOL RAIN IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SE 6/7 WITH GUSTS PROB OF SH
VIS POOR OCNL MODERATE
REST OF THE AREA: SE 4/5 PROB OF FOG MIST IMPR STARTING EARLY MORNING VIS
MODERATE TO GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 7/6 WITH GUSTS LOW PROB OF
SH OF SNOW IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
REST OF THE AREA: SW 6/5 WITH GUSTS VEER SECTOR W 6/7 WITH GUSTS BY 18/1500 VIS
MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: VRB 3/4 UNSTABLE VIS GOOD
REST OF THE AREA: SECTOR W 4/6 WITH GUSTS VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 4/5 VIS GOOD
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