1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-1, 00:00 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 ON PROVOKES WINDS FORCE 8 FROM SECTOR S IN
SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS FROM 01/1500
WARNING 182: LOW 972HPA AT 50S 43W MOV SE NOT CHANGE EXPECTED 51S 31W BY 01/2100
PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST BETWEEN 45S-50S AND 35W-50W UNTIL
01/1500
WARNING 181: LOW 972HPA AT 56S 56W MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM
SECTOR S WITH GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) BETWEEN 50S-60S AND
55W-60W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1017HPA 35S 45W MOV E INTSF
LOW 972HPA 56S 56W DPN EXTENDS OFNT AT 59S 56W 56S 62W 54S 58W
LOW 972HPA 50S 43W MOV SE DPN EXP 51S 31W BY 01/2100 EXTENDS CFNT AT 50S 40W 44S
31W 37S 35W
LOW 996HPA 46S 67W MOV SE DPN EXP 50S 48W BY 01/2100
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-5-2
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4 WITH GUSTS BACK SECTOR S BY 1/2100 UNSTABLE
DURING THE EVENING VIS GOOD
OUTER RIO DE LA PLATA: SECTOR N 4/5 WITH GUSTS BACK SECTOR S 4 BY 1/2100
UNSTABLE STARTING EVENING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 4/5 WITH GUSTS BACK SECTOR S 4 BY 1/2100
UNSTABLE STARTING EVENING VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/5 WITH GUSTS BACK SECTOR S 4
BY 1/1800 UNSTABLE DURING THE EVENING VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/6 WITH GUSTS BACK SECTOR S
BY 1/1500 PROB OF RAIN FROM 1/2100 VIS GOOD TO POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6 WITH GUSTS SECTOR W WITH
GUSTS BY 1/0300 AFTERWARDS SECTOR S 7 GUST WITH 8 INTENSITY BY 1/0900 PROB OF
RAIN VIS MODERATE TO POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 6 WITH GUSTS SECTOR S 7 GUST
WITH 8 INTENSITY BY 1/0300 PROB OF RAIN VIS MODERATE TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 5/6 WITH GUSTS INCR 7/8 BY 1/1800
PROB OF RAIN VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 5/6 WITH GUSTS INCR 7/8 BY 1/1500
PROB OF RAIN AND SNOW MIXTURE VIS POOR OCNL VERY POOR
ISLAS MALVINAS COASTS: SECTOR S 5/6 WITH GUSTS INCR 7/8 BY 1/1800 PROB OF RAIN
AND SNOW MIXTURE VIS POOR OCNL VERY POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 5 PROB OF RAIN DURING THE
MORNING NEXT IMPR VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR W 5 VEER SECTOR N BY 1/1200 PROB OF RAIN STORMS
STARTING EVENING VIS GOOD TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 5/6 WITH GUSTS INCR
7 WITH GUSTS BY 1/1200 PROB OF RAIN VIS POOR
N OF 45 - W OF 30W: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF RAIN VIS POOR
REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY INCR 8 BY 1/0600 PROB OF
RAIN VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45 - E OF 50W: SECTOR W 7/6 WITH
GUSTS VEER SECTOR N 7 WITH GUSTS BY 1/2300 PROB OF RAIN VIS VERY POOR
S OF 45 - E OF 50W: SECTOR W 8 WITH GUSTS DECR 6 BY 1/1200 VEER SECTOR N 5 BY
1/2100 PROB OF RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS VEER SECTOR S 7 WITH GUSTS BY 1/2300
PROB OF RAIN AND SNOW MIXTURE STARTING EARLY MORNING VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) S OF 55S: SECTOR E 5 WITH GUSTS LOW PROB
OF RAIN AND SNOW MIXTURE VIS MODERATE
W OF 30 - N OF 55S: SECTOR E 6 BACK SECTOR W 8 BY 1/1200 DECR 6 BY 1/2100 LOW
PROB OF RAIN AND SNOW MIXTURE VIS MODERATE TO POOR
REST OF THE AREA: SECTOR E 5 WITH GUSTS LOW PROB OF RAIN AND SNOW MIXTURE VIS
MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55 - E OF 50W: SECTOR W 7 GUST WITH
8 INTENSITY DECR 6 BY 1/1500 LOW PROB OF RAIN AND SNOW MIXTURE VIS POOR TO
MODERATE
S OF 55 - E OF 50W: NE 5 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY INCR 8 WITH GUSTS BY 1/0600
PROB OF RAIN AND SNOW MIXTURE VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 8 WITH GUSTS PROB OF RAIN AND SNOW
MIXTURE VIS VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 01, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
594/2026 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 21:00UTC
LOW 997HPA 69S 60W MOV E WKN
RIDGE 60S 88W 62S 82W 68S 70W MOV E INTSF
WFNT AT 60S 60W 63S 55W 66S 50W MOV SE DPN
LOW 983HPA 78S 82W MOV E DPN
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-5-2
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR S 4/5 INCR SE 6/7 GUST WITH 8 INTENSITY BY 1/0600 PROB OF MIST PROB OFISOL RAIN WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SE 7/8 WITH GUSTS BACK NE 8/7 WITH GUSTS BY 1/1200 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: SECTOR S 4/5 INCR SE 6/7 GUST WITH 8 INTENSITY BY 1/0600 PROB OF MIST PROB OFISOL RAIN WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SE 7/8 WITH GUSTS BACK NE 7 WITH GUSTS BY 1/1200 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 1/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : NE 4/3 BACK SECTOR N 4/5 BY 1/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE TO POOR
EREBUS Y TERROR GULF : SECTOR S 5/6 BACK SE 5/6 BY 1/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 4/5 VEER SW 4 BY 1/0600 AFTERWARDS SECTOR N 5/7 BY 1/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 BACK SW 5/6 BY 1/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 5/6 VEER SECTOR W 5/6 BY 1/1200 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: NE 5/6 WITH GUSTS VEER SECTOR E 5 BY 1/1500 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
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 3/4 VEER NE 3 BY 1/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 3/4 VEER SW 4 BY 1/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD=