1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-13, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 421: LOW 990HPA AT 57S 54W MOV NE DEEPENING EXPECTED 52S 34W BY 14/1200
PROVOKES WINDS FORCE 8 AROUND ITSELF WITH GUST BETWEEN 50S-55S 35W-60W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
131400 UTC 1.SEA ICE LIMIT 5545S 02000W 5412S 02618W 5547S 03218W 5632S 03758W
5720S 04317W 5923S 04813W 6002S 05247W 6126S 05654W 6005S 06032W 6010S 06337W
6026S 06559W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5718S 0428W 28X25NM
D33B 5858S 04823W 21X12NM A76C 5415S 02618W 17X6NM 3.ICEBERGS SMALLER THAN 10NM
D32 5738S 03903W 9X6NM D33C 6157S 05414W 9X5NM ICEBERG1 5825S 04743W 5X3NM
ICEBERG2 6011S 05211W 5X3NM ICEBERG3 5830S 05039W 4X3NM ICEBERG4 6008S 05035W
2X1NM ICEBERG5 5831S 05046W 3X1NM 4.ICEBERGS AREA A5616S 02000W 4901S 02000W
5200S 04009W 5820S 04000W B5820S 04000W 5317S 03933W 5903S 06716W 6145S 06716W
LOW 990HPA 57S 54W MOV NE DPN EXP 52S 34W BY 14/1200 EXTENDS CFNT AT 57S 54W 55S
61W 57S 70W MOV NE
STRONG BARIC GRADIENT 40S 50W 20S 60W
HIGH 1035HPA 37S 59W MOV E EXP 35S 50W BY 14/1200 EXTENDS RIDGE AT 37S 59W 40S
40W 41S 20W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-14
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 3 BACK SECTOR N BY 13/1800 VIS GOOD
OUTER RIO DE LA PLATA: SE 3 BACK SECTOR N BY 14/0000 VIS GOOD
URUGUAY SOUTH EAST COASTS: SE 3 BACK SECTOR N BY 14/0000 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): VRB 3 BACK SECTOR W 5 WITH GUSTS BY
14/0300 VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5/6 WITH GUSTS VIS GOOD OCNL
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 6/7 WITH GUSTS VIS GOOD OCNL
MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 4/5 WITH GUSTS VIS GOOD OCNL
MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5/6 WITH GUSTS BACK SECTOR S WITH
GUSTS BY 14/0600 RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/6 WITH GUSTS BACK SECTOR S WITH
GUSTS BY 13/2100 RAIN AND SNOW MIXTURE IMPR STARTING NIGTH VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS BACK SECTOR S WITH GUSTS BY
14/0600 PROB OF RAIN AND SNOW MIXTURE STARTING EVENING VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) W OF 45W: SECTOR S 4/5 WITH GUSTS TEMPO BACK
SECTOR W WITH GUSTS BY 14/0000 LOW PROB OF ISOL RAIN IMPR STARTING NIGTH VIS
GOOD OCNL MODERATE
REST OF THE AREA: SECTOR S 5 WITH GUSTS TEMPO BACK SECTOR W WITH GUSTS BY
14/0000 LOW PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 6/7 WITH GUSTS SH RAIN VIS
MODERATE OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 5/6 WITH GUSTS INCR
7 WITH GUSTS BY 14/0000 PROB OF ISOL RAIN IMPR STARTING NIGTH VIS MODERATE OCNL
POOR
REST OF THE AREA: SECTOR W 6/7 WITH GUSTS LOW PROB OF ISOL RAIN SPELLS OF GOOD
WEATHER VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) W OF 35 - N OF 55S: SECTOR S 5 WITH
GUSTS VEER SECTOR W 8 WITH GUSTS BY 14/0300 PROB OF RAIN AND SNOW MIXTURE
STARTING EVENING VIS POOR
E OF 35 - N OF 55S: SECTOR W 4 VEER SECTOR E BY 14/0000 PROB OF ISOL RAIN VIS
GOOD OCNL MODERATE
REST OF THE AREA: SECTOR S 4/5 WITH GUSTS VIS GOOD OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR W 8 WITH GUSTS TEMPO
BACK SECTOR S 5 RAIN AND SNOW MIXTURE VIS POOR TO MODERATE
REST OF THE AREA: SECTOR E 4 VEER SECTOR S 5 WITH GUSTS BY 13/1500 PROB OF RAIN
AND SNOW MIXTURE IMPR STARTING NIGTH VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 6/5 WITH GUSTS VIS GOOD OCNL
MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 13, SEPTEMBER 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 990HPA 60S 53W MOV E DPN
HIGH 1008HPA 66S 54W MOV NE INTSF
RIDGE 67S 90W 63S 78W 60S 72W MOV E INTSF
121400 UTC 1.SEA ICE LIMIT 5545S 02000W 5412S 02618W 5547S 03218W 5632S 03758W 5720S 04317W 5923S 04813W 6002S 05247W 6126S 05654W 6005S 06032W 6010S 06337W 6026S 06559W 6117S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5714S 04647W 28X25NM D33B 5846S 04902W 21X12NM A76C 5409S 02619W 17X6NM 3.ICEBERGS SMALLER THAN 10NM D32 5746S 03909W 9X6NM D33C 6152S 05420W 9X5NM ICEBERG1 5845S 04724W 5X3NM ICEBERG2 6014S 05224W 5X3NM ICEBERG3 5844S 05105W 6X4NM ICEBERG4 6012S 05130W 2X1NM ICEBERG5 5844S 05130W 2X1NM 4.ICEBERGS AREA A5700S 02000W 4900S 02000W 5600S 05000W 6030S 05000W 5000S 04000W B5600S 05000W 6030S 05000W 6500S 06400W 6100S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-14
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 VEER SECTOR W 7 WITH GUSTS BY 14/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SE 4/5 WITH GUSTS VEER NW 5/6 BY 14/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 5/6 VEER SECTOR W 7 WITH GUSTS BY 14/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SE 4/5 WITH GUSTS VEER NW 5/6 BY 14/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SE 3/4 BACK NE 4 BY 13/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : NE 3/4 BACK SECTOR N 3 BY 13/1800 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SECTOR S 6/7 WITH GUSTS VEER NW 5/4 BY 14/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR S 5/6 WITH GUSTS VEER SW 7 BY 14/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 4/5 INCR SW 6 BY 13/1800 PROB OF MIST VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 3/4 INCR SW 5/7 BY 13/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SE 3/4 VEER SW 4/5 BY 14/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 3/4 VEER SECTOR W 3/4 BY 13/1800 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 3/4 BACK NE 4 BY 13/1800 PROB OF MIST VIS MODERATE TO GOOD=