1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-30, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 443: LOW 1000HPA AT 37S 52W MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM
SECTOR E WITH GUST BETWEEN 40S-45S AND 40W-50W FROM 30/0900
WARNING 442: LOW 1000HPA AT 37S 52W MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM
SW WITH GUST BETWEEN 35S-40S AND 50W-55W
WARNING 441: STRONG BARIC GRADIENT MOV NE PROVOKES WINDS FORCE 8 AROUND ITSELF
WITH GUST BETWEEN 35S-40S AND 40W-50W
WARNING 440: STRONG BARIC GRADIENT MOV SW WILL PROVOKE WINDS FORCE 8 AROUND
ITSELF WITH GUST BETWEEN 55S-60S AND 20W-40W FROM 30/0900
PART 2 GENERAL SYNOPSIS AT 21:00UTC
291400 UTC 1.SEA ICE LIMIT 5513S 02000W 5350S 02618W 5449S 03217W 5728S 03757W
5810S 04317W 5856S 04813W 6103S 05247W 6220S 05654W 6156S 06032W 6502S 06337W
6000S 06559W 6100S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5557S 04254W 28X25NM
D33B 5847S 04702W 21X12NM A76C 5507S 02526W 17X6NM A83 6053S 05217 12X7NM A85
5952S 05120W 10X3NM ICEBERG1 6002S 05126W 10X3NM 3.ICEBERGS SMALLER THAN 10NM
D32 5642S 03809W 9X6NM D33C 6144S 05348W 9X5NM ICEBERG2 5604S 04336W 5X3NM
ICEBERG3 5905S 04731W 5X3NM ICEBERG4 5613S 04732W 4X3NM ICEBERG5 5712S 04541W
3X1NM ICEBERG6 6003S 05143W 3X2NM ICEBERG7 5842S 04535W 3X2NM 4.ICEBERGS AREA
A5532S 02000W 5000S 02000W 5000S 04009W 5823S 04001W B5823S 04001W 5300S 04001W
5903S 06716W 6106S 06716W
LOW 1000HPA 37S 52W MOV SE DPN EXP 40S 46W BY 30/2100
HIGH 1025HPA 41S 37W MOV NE NC EXP 37S 25W ISLAS MALVINAS COASTS SOUTH PATAGONIA
COASTS BY 30/2100 EXTENDS RIDGE AT
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-10-1
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 4 DECR VRB 3 BY 30/1800 VIS GOOD
OUTER RIO DE LA PLATA: SW 6/5 WITH GUSTS VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SW 7/6 GUST WITH 8 INTENSITY DECR 5 WITH GUSTS BY
30/1500 UNSTABLE VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SW 6 WITH GUSTS PROB OF ISOL RAIN
STARTING EARLY MORNING IMPR VIS POOR TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 5/6 WITH GUSTS PROB OF DRIZZLE
SPELLS OF GOOD WEATHER VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 6 WITH GUSTS PROB OF DRIZZLE
SPELLS OF GOOD WEATHER VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SE 6/5 WITH GUSTS PROB OF DRIZZLE VIS
MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): NE 4/3 VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): NW 4/3 PROB OF ISOL RAIN STARTING EARLY
MORNING VIS GOOD TO MODERATE
ISLAS MALVINAS COASTS: VRB 3 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS GOOD
OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR S 5 WITH GUSTS DECR VRB 3 BY
30/1800 PROB OF SH STARTING EARLY MORNING VIS MODERATE TO GOOD
W OF 30 - E OF 40W: SECTOR E 3 BACK NE 6/7 GUST WITH 8 INTENSITY BY 30/0900
PROB OF RAIN STARTING EARLY MORNING VIS MODERATE TO POOR
W OF 40 - E OF 50W: NE 8 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 30/1800 PROB
OF HVY RAIN VIS VERY POOR
REST OF THE AREA: SW 8/7 WITH GUSTS PROB OF SH RAIN VIS POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR S 6/5 WITH
GUSTS PROB OF SH STARTING EVENING IMPR VIS MODERATE TO GOOD
W OF 30 - N OF 45S: VRB 3 INCR NE 6/7 GUST WITH 8 INTENSITY BY 30/2100 PROB OF
RAIN STARTING EVENING VIS MODERATE TO POOR
REST OF THE AREA: SW 5/6 WITH GUSTS PROB OF SH VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) S OF 50 - N OF 45S: SECTOR E 7/8 WITH
GUSTS PROB OF HVY RAIN VIS VERY POOR
E OF 50 - S OF 45S: VRB 3 INCR SECTOR E 5/6 WITH GUSTS BY 30/1500 PROB OF RAIN
STARTING EVENING VIS GOOD TO MODERATE
W OF 50 - N OF 45S: SECTOR E 6 WITH GUSTS VEER SW 6 BY 30/1500 PROB OF RAIN VIS
POOR
REST OF THE AREA: SECTOR E 6 GUST WITH 8 INTENSITY PROB OF RAIN VIS VERY POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 7 GUST WITH 8
INTENSITY PROB OF SH OF SNOW VIS POOR
REST OF THE AREA: SW 7/8 WITH GUSTS PROB OF SNOW FALL TOWARDS THE END OF THE
PERIOD IMPR VIS VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SW 4 DECR VRB 3 BY 30/1800
UNSTABLE VIS GOOD OCNL MODERATE
E OF 50 - S OF 55S: SECTOR S 6/5 WITH GUSTS PROB OF SH OF RAIN STARTING EARLY
MORNING IMPR VIS MODERATE GOOD
REST OF THE AREA: SW 5/4 VIS GOOD
DRAKE AREA (55S- 60S AND 60W- 67W): VRB 3 VIS GOOD
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 30, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1197/2026 LOW 958HPA NORTHERN WEDDELL SEA MOV NE WEAKENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-70S 50W-20W UNTIL 30/2300
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 968HPA 67S 29W MOV E WKN
RIDGE 62S 71W 65S 70W 67S 68W MOV E NC
TROUGH 61S 44W 63S 37W 65S 31W MOV E NC
291400 UTC 1.SEA ICE LIMIT 5513S 02000W 5350S 02618W 5449S 03217W 5728S 03757W 5810S 04317W 5856S 04813W 6103S 05247W 6220S 05654W 6156S 06032W 6502S 06337W 6000S 06559W 6100S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5557S 04254W 28X25NM D33B 5847S 04702W 21X12NM A76C 5507S 02526W 17X6NM A83 6053S 05217 12X7NM A85 5952S 05120W 10X3NM ICEBERG1 6002S 05126W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5642S 03809W 9X6NM D33C 6144S 05348W 9X5NM ICEBERG2 5604S 04336W 5X3NM ICEBERG3 5905S 04731W 5X3NM ICEBERG4 5613S 04732W 4X3NM ICEBERG5 5712S 04541W 3X1NM ICEBERG6 6003S 05143W 3X2NM ICEBERG7 5842S 04535W 3X2NM 4.ICEBERGS AREA A5532S 02000W 5000S 02000W 5000S 04009W 5823S 04001W B5823S 04001W 5300S 04001W 5903S 06716W 6106S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-10-1
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 50W: SW 5 DECR SECTOR W 3 BY 30/1500 VIS GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 5/6 WITH GUSTS DECR SECTOR W 4/5 BY 30/1800 VIS GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 6/7 WITH GUSTS DECR SECTOR W 5/4 BY 30/1500 PROB OF ISOL SNOW FALL IMPR STARTING EARLY MORNING VIS GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 5 VEER SECTOR W 5/6 WITH GUSTS BY 30/1800 PROB OF MIST DISSIPATING DURING THE MORNING VIS MODERATE TO GOOD
GERLACHE STRAIT : SW 4/3 VEER SECTOR W 4 BY 30/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE OCNL POOR
MARGARITA BAY : NW 4 BACK SECTOR W 3/4 BY 30/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS MODERATE OCNL POOR
EREBUS Y TERROR GULF : SECTOR S 3/4 VEER NW 4/5 BY 30/1200 AFTERWARDS SW 4 BY 30/1800 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA (60-66S 70-90W): NW 4/5 DECR NW 3/4 BY 30/1500 PROB OF ISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NW 4/3 INCR NW 4/5 BY 30/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE
NORTHERN WEDDELL SEA W OF 35W: SW 8 WITH GUSTS DECR SW 5/6 WITH GUSTS BY 30/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 6/7 WITH GUSTS INCR SW 8 WITH GUSTS BY 30/1200 PROB OF INTERMITTENT SNOW FALL IMPR GRADUALLY TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 5/6 WITH GUSTS DECR SECTOR S 3/4 BY 30/1500 AFTERWARDS SECTOR W 3 BY 30/2100 PROB OF ISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD=