1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-29, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 179: LOW 979HPA AT 48S 69W MOV E DEEPENING WILL PROVOKE WINDS FORCE 8
FROM SW WITH GUST IN RINCON BAHIA BLANCA COASTS PENINSULA DE VALDES COASTS GOLFO
DE SAN JORGE COASTS SOUTH PATAGONIA COASTS BETWEEN 35S-50S AND 50W-60W FROM
29/0600
WARNING 178: LOW 979HPA AT 45S 32W MOV SE NOT CHANGE PROVOKES WINDS FORCE 8
AROUND ITSELF WITH GUST
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 989HPA 45S 32W MOV SE NC EXTENDS OFNT AT 45S 20W 50S 33W 45S 36W 43S 30W
LOW 979HPA 48S 69W MOV E DPN EXP 55S 60W BY 29/2100 EXTENDS CFNT AT SOUTH
PATAGONIA COASTS 40S 71W 42S 70W 46S 68W MOV E
281400 UTC 1.SEA ICE LIMIT 6833S 02000W 6648S 02845W 6311S 03120W 6508S 03309W
6159S 03802W 6301S 04248W 6208S 05113W 6224S 05316W 6308S 05713W 6336S 06028W
6426S 06356W 6645S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5835S 03622W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4805S 02829W 6X3NM ICEBERG2 5022S 02628W
5X3NM ICEBERG3 4733S 02829W 2X1NM ICEBERG4 4752S 02756W 4X2NM ICEBERG5 5755S
03443W 3X1NM ICEBERG6 5828S 03616W 2X1NM 4.ICEBERGS AREA A6845S 02000W 4350S
02000W 4210S 03000W 6300S 04245W B6300S 04245W 4300S 03015W 4140S 03630W 4949S
04130W 6235S 05110W C6235S 05110W 5829S 04735W 6125S 06716W 6815S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-04-30
COASTAL AREAS:
INNER RIO DE LA PLATA: NW 5/6 WITH GUSTS BACK SW 5/4 VIS GOOD
OUTER RIO DE LA PLATA: NW 5/7 WITH GUSTS BACK SW 5/4 BY 29/2100 VIS GOOD OCNL
MODERATE
URUGUAY SOUTH EAST COASTS: NW 5/7 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 29/1800
VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NW 5/7 WITH GUSTS BACK SW 6/5 WITH GUSTS
BY 29/1800 PROB OF SH DURING THE MORNING IMPR VIS MODERATE OCNL GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): NW 6/7 WITH GUSTS BACK SW 8/6 WITH
GUSTS BY 29/1200 WORSENING WITH PROB OF SH RAIN VIS MODERATE OCNL POOR
PENINSULA DE VALDES COASTS(41S - 45S): NW 6/7 WITH GUSTS BACK SW 8/6 WITH
GUSTS BY 29/0600 SH RAIN IMPR STARTING EARLY MORNING VIS MODERATE OCNL POOR TO
GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6 WITH GUSTS BACK SW 8/6 WITH
GUSTS BY 29/0600 SH RAIN IMPR STARTING EARLY MORNING VIS MODERATE OCNL POOR TO
GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5 WITH GUSTS BACK SW 6/8 WITH
GUSTS BY 29/0300 DECR 7/6 WITH GUSTS RAIN NXT ISOL SH VIS MODERATE OCNL POOR
FIN DEL MUNDO COASTS(54S - 55S): N 5/4 WITH GUSTS BACK SW 7 WITH GUSTS PROB OF
RAIN VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR N 5/6 WITH GUSTS BACK SW 7 WITH GUSTS BY 29/1800
WORSENING WITH PROB OF RAIN STARTING EARLY MORNING VIS MODERATE TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: NW 7/6 WITH GUSTS PROB OF SH VIS
MODERATE OCNL POOR
REST OF THE AREA: W 5 BACK NW 6/7 WITH GUSTS BACK SW 8 WITH GUSTS BY 29/2100
PROB OF SH RAIN VIS MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - S OF 45S: SECTOR E 8 WITH
GUSTS BACK VRB 7/6 WITH GUSTS BACK SECTOR W 6 WITH GUSTS PROB OF SH RAIN VIS
POOR OCNL MODERATE
W OF 30 - S OF 45S: VRB 6 WITH GUSTS BACK SW 7 WITH GUSTS PROB OF SH RAIN VIS
MODERATE OCNL POOR
REST OF THE AREA: NW 8 WITH GUSTS BACK W 8/6 WITH GUSTS PROB OF SH VIS POOR TO
MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 45W: SW 7 WITH GUSTS DECR PROB OF
SH IMPR VIS MODERATE TO GOOD
W OF 50W: SECTOR N 5/7 WITH GUSTS BACK SW 8 WITH GUSTS BY 29/1500 PROB OF SH
RAIN VIS MODERATE TO POOR
REST OF THE AREA: SW 5/4 VEER SECTOR N 6/7 WITH GUSTS PROB OF SH NXT RAIN VIS
MODERATE TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: E 8 WITH GUSTS DECR
6 WITH GUSTS PROB OF RAIN VIS POOR
W OF 30 - N OF 55S: SE 8/7 WITH GUSTS VEER S 6 WITH GUSTS PROB OF RAIN VIS POOR
OCNL MODERATE
S OF 57S: SECTOR N 4 VIS GOOD
REST OF THE AREA: N 5 VEER E 5/6 WITH GUSTS UNSTABLE VIS GOOD OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: VRB 5 VEER N 5/6
WITH GUSTS UNSTABLE VIS GOOD
W OF 50 - N OF 55S: N 5 VEER NE 6/7 WITH GUSTS WORSENING WITH PROB OF RAIN VIS
GOOD TO MODERATE
E OF 50 - S OF 55S: SECTOR N 6/5 WITH GUSTS VIS GOOD
REST OF THE AREA: SECTOR N 6/5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE OCNL
POOR
DRAKE AREA (55S- 60S AND 60W- 67W): W 4 VEER E 3/4 PROB OF DRIZZLE RAIN PROB OF
FOG AND MIST IN PATCHES VIS MODERATE OCNL POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 29, APRIL 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 21:00UTC
LOW 973HPA 67S 76W MOV SE DPN
LOW 972HPA 67S 52W MOV SE DPN
HIGH 988HPA 64S 60W MOV NE WKN
281400 UTC 1.SEA ICE LIMIT 6833S 02000W 6648S 02845W 6311S 03120W 6508S 03309W 6159S 03802W 6301S 04248W 6208S 05113W 6224S 05316W 6308S 05713W 6336S 06028W 6426S 06356W 6645S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5835S 03622W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4805S 02829W 6X3NM ICEBERG2 5022S 02628W 5X3NM ICEBERG3 4733S 02829W 2X1NM ICEBERG4 4752S 02756W 4X2NM ICEBERG5 5755S 03443W 3X1NM ICEBERG6 5828S 03616W 2X1NM 4.ICEBERGS AREA A6845S 02000W 4350S 02000W 4210S 03000W 6300S 04245W B6300S 04245W 4300S 03015W 4140S 03630W 4949S 04130W 6235S 05110W C6235S 05110W 5829S 04735W 6125S 06716W 6815S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-04-30
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 4/3 BACK SECTOR W 4/3 BY 29/0900 PROB OF MIST PROB OFISOL RAIN SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 6/5 DECR SECTOR W 4/3 BY 28/2100 PROB OF FOG AND MIST IN PATCHES PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: NW 4/3 BACK SECTOR W 4/3 BY 29/0900 PROB OF MIST PROB OFISOL RAIN VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 6/5 DECR SECTOR W 4/3 BY 28/2100 PROB OF MOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : NE 5/6 INCR NE 7 WITH GUSTS BY 29/0900 PROB OF MIST PROB OFMOD SNOW FALL WORSENING DURING THE EARLY MORNING VIS POOR TO MODERATE
MARGARITA BAY : NE 5/4 DECR NE 4/3 BY 29/0600 VIS GOOD
EREBUS Y TERROR GULF : SW 7/8 WITH GUSTS DECR SW 6/5 BY 29/0600 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 3/4 BACK SECTOR S 4/5 BY 29/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL DRIZZLE RAIN WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR S 4/5 VEER SW 5/6 BY 29/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 4/5 INCR SW 6 WITH GUSTS BY 29/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: NW 7/5 GUST WITH 8 INTENSITY VEER SECTOR N 5/6 WITH GUSTS BY 29/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: NW 5/7 WITH GUSTS DECR NW 5/4 BY 29/1200 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 BACK SECTOR E 5/4 BY 29/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD=