1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-01, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 183: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST IN FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS CENTRAL WEST AREA (40S- 50S
AND 40W- 60W) FROM 02/0000
WARNING 181: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST IN DRAKE AREA (55S- 60S AND 60W- 67W)
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 996HPA 47S 62W MOV SE DPN EXP 50S 41W BY 02/1200 EXTENDS CFNT AT 47S 62W 42S
63W 41S 63W MOV E
LOW 972HPA 56S 56W WKN
LOW 978HPA 51S 38W MOV SE WKN EXTENDS CFNT AT 51S 38W 46S 24W 34S 26W
301400 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 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5835S 03621W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4805S 02829W 6X3NM ICEBERG2 5022S 02628W
5X3NM ICEBERG3 4733S 02829W 2X1NM ICEBERG4 4752S 02756W 4X2NM ICEBERG5 5801S
03406W 3X1NM ICEBERG6 5828S 03616W 2X1NM 4.ICEBERGS AREA A6843S 02000W 4058S
02000W 4158S 03700W 6215S 03700W B6215S 03700W 4158S 03700W 5858S 05002W 6233S
05002W C6233S 05002W 5858S 05002W 6227S 06716W 6859S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-2
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4/5 WITH GUSTS BACK SECTOR S BY 2/0000 PROB OF
ISOL RAIN VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR N 4/5 WITH GUSTS BACK SECTOR S BY 2/0000 VIS
GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 4/5 WITH GUSTS BACK SECTOR S 6/7 BY 2/0600
PROB OF RAIN VIS GOOD TO POOR OCNL VERY POOR
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 4/5 WITH GUSTS BACK SECTOR S 6/7
WITH GUSTS BY 2/0300 PROB OF RAIN VIS GOOD TO POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 6/7 GUST WITH 8 INTENSITY PROB OF
RAIN VIS POOR OCNL VERY POOR
PENINSULA DE VALDES COASTS(41S - 45S): SW 6/7 GUST WITH 8 INTENSITY PROB OF
RAIN VIS POOR OCNL VERY POOR.
GOLFO DE SAN JORGE COASTS(45S - 48S): SW 6/7 GUST WITH 8 INTENSITY PROB OF
RAIN VIS POOR OCNL VERY POOR.
SOUTH PATAGONIA COASTS(48S - 54S): SW 6/7 GUST WITH 8 INTENSITY PROB OF RAIN
VIS POOR OCNL VERY POOR.
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 6/7 GUST WITH 8 INTENSITY INCR 8
WITH GUSTS BY 2/0000 PROB OF RAIN VIS VERY POOR TO POOR
ISLAS MALVINAS COASTS: SECTOR S 6/7 GUST WITH 8 INTENSITY INCR 8 WITH GUSTS BY
2/0000 PROB OF RAIN VIS VERY POOR TO POOR.
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 4/5 VIS GOOD
REST OF THE AREA: SECTOR N 4/5 INCR 6 BY 2/0000 BACK SW 6/7 GUST WITH 8
INTENSITY BY 2/0300 PROB OF SH RAIN VIS MODERATE TO POOR OCNL VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 6/7 GUST WITH 8 INTENSITY
VEER NW BY 2/0300 PROB OF SH RAIN VIS POOR OCNL VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): NW 6/7 WITH GUSTS BACK SW 8 WITH
GUSTS BY 2/0000 PROB OF SH RAIN VIS VERY POOR TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR E 5/6 VEER SECTOR W 6/7
GUST WITH 8 INTENSITY BY 01/1500 PROB OF ISOL RAIN VIS MODERATE TO POOR OCNL
VERY POOR
REST OF THE AREA: SECTOR E 5/6 WITH GUSTS PROB OF ISOL RAIN VIS GOOD OCNL
MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 45 - E OF 50W: SECTOR W 6/7 GUST
WITH 8 INTENSITY DECR 4/5 BY 01/2100 PROB OF ISOL RAIN VIS VERY POOR TO
MODERATE
S OF 45 - E OF 50W: SECTOR E 4/5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE
REST OF THE AREA: S 8 WITH GUSTS PROB OF RAIN VIS VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): S 8 WITH GUSTS PROB OF RAIN VIS VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 01, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
595/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SE GUST WITH 9 INTENSITY IN 60S-64S 63W-53W UNTIL 01/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 998HPA 69S 54W MOV E WKN
RIDGE 60S 80W 65S 78W 68S 68W MOV E INTSF
WFNT AT 60S 61W 62S 57W 66S 50W MOV SE DPN
LOW 987HPA 72S 70W MOV E WKN
301400 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 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5835S 03621W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4805S 02829W 6X3NM ICEBERG2 5022S 02628W 5X3NM ICEBERG3 4733S 02829W 2X1NM ICEBERG4 4752S 02756W 4X2NM ICEBERG5 5801S 03406W 3X1NM ICEBERG6 5828S 03616W 2X1NM 4.ICEBERGS AREA A6843S 02000W 4058S 02000W 4158S 03700W 6215S 03700W B6215S 03700W 4158S 03700W 5858S 05002W 6233S 05002W C6233S 05002W 5858S 05002W 6227S 06716W 6859S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-2
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/7 DECR SECTOR W 5/4 BY 01/0600 PROB OF ISOL RAIN IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SE 7/8 WITH GUSTS BACK SECTOR E 5/6 BY 01/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 5/7 DECR SECTOR W 5/4 BY 01/0600 PROB OF MIST PROB OFISOL RAIN IMPR STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SE 7/8 WITH GUSTS BACK SECTOR E 5/6 BY 01/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
GERLACHE STRAIT : SE 4/3 BACK SECTOR E 3/4 BY 01/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
MARGARITA BAY : NE 4/5 BACK SECTOR N 4 BY 01/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR
EREBUS Y TERROR GULF : SE 5/6 BACK SW 5/4 BY 2/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 4/5 VEER SECTOR N 5/7 WITH GUSTS BY 01/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 5/4 VEER NE 5/7 BY 2/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NIGTH VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 5/6 BACK SECTOR S 5/4 BY 2/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA N OF 64S: NE 5/4 VEER SECTOR E 5 BY 2/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 3/4 VEER NE 3 BY 2/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 3/4 BACK SE 4/3 BY 2/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD=