1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 19, OCTOBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 998HPA 61S 77W MOV E DPN
TROUGH 68S 59W 67S 58W 65S 57W MOV E DPN
RIDGE 61S 41W 65S 39W 68S 38W MOV E NC
181400 UTC 1.SEA ICE LIMIT 5351S 02000W 5300S 02618W 5354S 03218W 5544S 03758W 5
653S 04316W 5808S 04814W 6207S 05247W 6248S 05654W 5936S 06033W 6028S 06336W 615
6S 06559W 6212S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5450S 03817W 28X25NM D33
B 5700S 04449W 21X12NM D35 6011S 04349W 15X6 NM A83 5957S 04931W 12X7NM A85 5903
S 04757W 10X3NM ICEBERG1 5819S 04751W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 56
40S 03846W 9X6NM D33C 6144S 05432W 9X5NM ICEBERG2 5237S 04139W 5X3NM ICEBERG3 57
40S 04620W 5X3NM ICEBERG4 5511S 04404W 4X3NM ICEBERG5 5644S 04433W 2X1NM ICEBERG
6 5703S 04804W 3X2NM ICEBERG7 5918S 04842W 2X1NM ICEBERG8 5909S 04417W 6X2NM ICE
BERG9 5743S 04619W 2X1NM ICEBERG10 6001S 04401W 4X1NM ICEBERG11 5851S 06225W 2X1
NM ICEBERG12 5951S 04252W 4X1NM ICEBERG13 6136S 05413W 2X1NM ICEBERG14 5656S 044
45W 2X1NM ICEBERG15 5520S 04344W 2X1NM 4.ICEBERGS AREA A5512S 02000W 4956S 02000
W 4952S 04500W 6050S 04500W B6050S 04500W 5345S 04500W 5908S 06716W 6622S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-20
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 3/4 INCR SECTOR W 5/6 WITH GUSTS B
Y 20/0000 AFTERWARDS SW 5/6 WITH GUSTS BY 20/0900 PROB OF MIST PROB OFISOL RAIN
AND SNOW MIXTURE IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 4/5 BACK SECTOR W 5/
6 WITH GUSTS BY 19/2100 AFTERWARDS SECTOR W 6/7 WITH GUSTS BY 20/0900 PROB OF MI
ST PROB OFISOL RAIN AND SNOW MIXTURE WORSENING DURING THE MORNING VIS GOOD TO MO
DERATE
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3/4 BACK SW 5/6 WITH GUSTS BY 20/0000
AFTERWARDS SW 6/7 WITH GUSTS BY 20/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FA
LL IMPR STARTING EARLY MORNING VIS MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 4/5 BACK SECTOR W 5/6 WITH GUSTS BY
20/0300 AFTERWARDS SW 6/5 WITH GUSTS BY 20/0900 PROB OF MIST PROB OFISOL RAIN AN
D SNOW MIXTURE WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL GOOD
GERLACHE STRAIT : SECTOR W 3/4 BACK SW 3/4 BY 20/0300 PROB OF MIST PROB OFINTERM
ITTENT SNOW FALL IMPR GRADUALLY DURING THE MORNING VIS MODERATE
MARGARITA BAY : SECTOR W 4/5 DECR NW 4/3 BY 20/0900 PROB OF INTERMITTENT SNOW FA
LL IMPR GRADUALLY DURING THE EARLY MORNING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SECTOR N 4/5 BACK SECTOR W 4/3 BY 20/0000 AFTERWARDS SW 3
/4 BY 20/0600 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE WORSENING STARTING
EARLY MORNING VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: SECTOR W 3/4 INCR NW 5/6 WITH GUSTS BY 20/0
300 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EA
RLY MORNING VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 BACK SW 3/4 BY 20/0000
AFTERWARDS NW 5/6 WITH GUSTS BY 20/0300 PROB OF MIST PROB OFINTERMITTENT RAIN A
ND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 3/4 INCR SECTOR N 6/7 WITH
GUSTS BY 20/0300 PROB OF INTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING T
HE EVENING VIS MODERATE OCNL POOR
NORTHERN WEDDELL SEA W OF 35W: NW 3/4 BACK SECTOR W 4/5 BY 20/0300 PROB OF MIST
PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS M
ODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 VEER NW 3/4 BY 20/0000 PROB
OF RAIN AND SNOW MIXTURE WORSENING DURING THE MORNING VIS GOOD TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): VRB 3 INCR NE 4/5 BY 20/0300 PROB OF MOD S
NOW FALL WORSENING STARTING EVENING VIS GOOD TO MODERATE=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-10-19, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 456: LOW 991HPA AT 38S 32W MOV SE EXPECTED 39S 32W BY 20/1200 PROVOKES
WINDS FORCE 8 FROM SECTOR S WITH GUST BETWEEN 30S-45S AND 20W-40W FROM 19/1800
WARNING 455: LOW 991HPA AT 38S 32W MOV SE EXPECTED 39S 32W BY 20/1200 PROVOKES
WINDS FORCE 8 FROM SECTOR E WITH GUST BETWEEN 40S-45S AND 20W-40W UNTIL
19/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
181400 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 03817W 28X25NM
D33B 5700S 04449W 21X12NM D35 6011S 04349W 15X6 NM A83 5957S 04931W 12X7NM A85
5903S 04757W 10X3NM ICEBERG1 5819S 04751W 10X3NM 3.ICEBERGS SMALLER THAN 10NM
D32 5640S 03846W 9X6NM D33C 6144S 05432W 9X5NM ICEBERG2 5237S 04139W 5X3NM
ICEBERG3 5740S 04620W 5X3NM ICEBERG4 5511S 04404W 4X3NM ICEBERG5 5644S 04433W
2X1NM ICEBERG6 5703S 04804W 3X2NM ICEBERG7 5918S 04842W 2X1NM ICEBERG8 5909S
04417W 6X2NM ICEBERG9 5743S 04619W 2X1NM ICEBERG10 6001S 04401W 4X1NM ICEBERG11
5851S 06225W 2X1NM ICEBERG12 5951S 04252W 4X1NM ICEBERG13 6136S 05413W 2X1NM
ICEBERG14 5656S 04445W 2X1NM ICEBERG15 5520S 04344W 2X1NM 4.ICEBERGS AREA A5512S
02000W 4956S 02000W 4952S 04500W 6050S 04500W B6050S 04500W 5345S 04500W 5908S
06716W 6622S 06716W
HIGH 1025HPA 45S 54W MOV NE EXP 43S 52W BY 20/1200 EXTENDS RIDGE AT 45S 54W 40S
58W 37S 59W
LOW 991HPA 38S 32W MOV SE EXP 39S 32W BY 20/1200 EXTENDS OFNT AT 36S 23W 39S 40W
33S 39W MOV E
LOW 999HPA 57S 24W MOV E EXTENDS CFNT AT 57S 24W 55S 26W MOV E
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-10-20
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 3 BACK SECTOR E 3/4 ISOL DRIZZLE RAIN IMPR
TOWARDS NIGTH VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SECTOR S 3 BACK SECTOR E 3/4 ISOL DRIZZLE RAIN IMPR
TOWARDS NIGTH VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 3 BACK SECTOR E 3/4 ISOL DRIZZLE RAIN IMPR
TOWARDS NIGTH VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 3 BACK NE 3/4 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 3/5 WITH GUSTS VIS GOOD OCNL
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS PROB OF HVY
RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 GUST WITH 8 INTENSITY PROB
OF SH RAIN STARTING EARLY MORNING VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 3/4 WITH GUSTS BACK SECTOR S 4/5
WITH GUSTS PROB OF RAIN SPELLS OF GOOD WEATHER VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4 BACK SECTOR S 4/5 WITH GUSTS PROB
OF RAIN VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR N 4/5 WITH GUSTS PROB OF RAIN SPELLS OF GOOD
WEATHER VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 5 WITH GUSTS BACK SECTOR W
6 GUST WITH 8 INTENSITY BACK SECTOR S 6/8 WITH GUSTS BY 19/1800 PROB OF HVY RAIN
STORMS VIS POOR
REST OF THE AREA: SECTOR S 5/4 WITH GUSTS PROB OF ISOL SH STORMS VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR E 8 WITH GUSTS VEER
SECTOR S 8 WITH GUSTS BY 19/1800 PROB OF HVY RAIN STORMS VIS POOR
REST OF THE AREA: SECTOR S 4/5 WITH GUSTS PROB OF ISOL DRIZZLE VIS GOOD OCNL
MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 5/3 WITH GUSTS PROB
OF ISOL RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR S 3 VEER SECTOR N 4/5 WITH GUSTS PROB OF RAIN SPELLS
OF GOOD WEATHER VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 6/5 WITH GUSTS BACK
SECTOR S 4/3 PROB OF ISOL RAIN IMPR TOWARDS NIGTH VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR W 5/4 WITH GUSTS PROB OF ISOL RAIN SNOW FALL IMPR
TOWARDS NIGTH VIS MODERATE TO GOOD
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 3/5 WITH GUSTS PROB OF HVY
RAIN SPELLS OF GOOD WEATHER VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 4/5 WITH GUSTS BACK SECTOR S 5 WITH
GUSTS PROB OF ISOL RAIN RAIN AND SNOW MIXTURE IMPR TOWARDS THE END OF THE PERIOD
VIS MODERATE
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