1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-11, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 204: STRONG BARIC GRADIENT MOV SE PROVOKES WINDS FORCE 8 FROM SW WITH
GUST IN URUGUAY SOUTH EAST COASTS UNTIL 11/1200
WARNING 203: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SW WITH
GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) FROM 11/1800
WARNING 202: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM SW WITH
GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS FROM
11/1200
WARNING 201: LOW 975HPA AT 45S 41W MOV SE WEAKENING PROVOKES WINDS FORCE 8 WITH
GUST BETWEEN 40S-45S 30W-40W
WARNING 200: LOW 975HPA AT 45S 41W MOV SE WEAKENING PROVOKES WINDS FORCE 9 FROM
SECTOR W WITH GUST BETWEEN 35S-40S AND 30W-60W
WARNING 199: LOW 975HPA AT 45S 41W MOV SE WEAKENING PROVOKES WINDS FORCE 9 FROM
SW WITH GUST BETWEEN 40S-50S AND 60W-40W
WARNING 191: LOW 975HPA AT 45S 41W MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM
SECTOR E WITH GUST BETWEEN 50S-55S AND 40W-30W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
SEA ICE AND ICEBERGS REPORT 101400 UTC
1.SEA ICE LIMIT
6614S 02000W 6617S 02518W 6613S 02753W 6521S 03227W 6228S 03509W 6255S 04154W
6302S 04651W 6218S 04928W 6158S 05227W 6213S 05625W 6416S 06313W 6647S 06716W
2.ICEBERGS GREATER THAN 10NM
A76C 5747S 03622W 16X7NM
3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 4908S 02700W 6X3NM
ICEBERG2 4624S 02620W 4X2NM
4.ICEBERGS AREA
A6800S 02000W 4200S 02000W 4200S 04100W 6100S 04100W
B6100S 04100W 5500S 04100W 6200S 06716W 6830S 06716W
LOW 975HPA 45S 41W MOV SE WKN EXP 48S 38W BY 11/1200
LOW 999HPA 44S 41W MOV E NC EXTENDS CFNT AT 44S 21W 48S 26W 35S 30W MOV NE
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-12
COASTAL AREAS:
INNER RIO DE LA PLATA: SW 6/5 WITH GUSTS VEER SECTOR W 4/5 WITH GUSTS BY 11/0600
AFTERWARDS NW 5 WITH GUSTS BY 11/1800 VIS GOOD
OUTER RIO DE LA PLATA: SW 6/5 WITH GUSTS VEER SECTOR W 6 GUST WITH 8 INTENSITY
BY 11/1800 VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SW 8/7 WITH GUSTS DECR 7/6 GUST WITH 8 INTENSITY BY
11/1200 PROB OF SH RAIN IMPR STARTING EVENING VIS MODERATE OCNL POOR TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SW 7/6 GUST WITH 8 INTENSITY VEER SECTOR
W 5 WITH GUSTS BY 11/1500 INCR 6/7 GUST WITH 8 INTENSITY BY 11/2100 VIS MODERATE
OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): VRB 3/4 INCR NW 5/6 WITH GUSTS BY
11/0900 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): VRB 3/4 INCR NW 5/6 WITH GUSTS BY
11/0900 AFTERWARDS SECTOR S 5 WITH GUSTS BY 11/1800 PROB OF ISOL RAIN IMPR
STARTING EARLY MORNING VIS MODERATE TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6/7 GUST WITH 8 INTENSITY BACK
SW 6/7 GUST WITH 8 INTENSITY BY 11/1200 PROB OF SH TOWARDS THE END OF THE PERIOD
VIS MODERATE TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/6 WITH GUSTS VEER SW 7/8 WITH
GUSTS BY 11/1200 PROB OF RAIN SNOW FALL VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5/6 WITH GUSTS VEER SW 7/8 WITH
GUSTS BY 11/1200 PROB OF RAIN SNOW FALL VIS MODERATE TO POOR.
ISLAS MALVINAS COASTS: SECTOR S 5 WITH GUSTS BACK SECTOR N 3/4 BY 11/0600 VEER
SW 7/8 WITH GUSTS BY 11/2100 PROB OF RAIN SNOW FALL VIS MODERATE TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 7 GUST WITH 8 INTENSITY DECR 5
WITH GUSTS BY 11/1200 PROB OF HVY RAIN STORMS VIS POOR
W OF 40 - E OF 30W: NW 7/8 WITH GUSTS PROB OF SH RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR W 8/9 WITH GUSTS DECR 8/7 WITH GUSTS BY 11/1200 PROB
OF ISOL RAIN STORMS VIS VERY POOR TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) W OF 30 - N OF 45S: NW 8/7 WITH GUSTS
PROB OF RAIN STORMS VIS VERY POOR TO POOR
W OF 30 - S OF 45S: SECTOR N 7/6 GUST WITH 8 INTENSITY VEER SECTOR W 6/7 GUST
WITH 8 INTENSITY BY 11/1800 PROB OF RAIN STORMS VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS INCR 6/7 GUST WITH 8 INTENSITY BY
11/1200 PROB OF RAIN STORMS VIS VERY POOR TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SW 8/7 WITH GUSTS DECR 7/6 GUST WITH
8 INTENSITY BY 11/2100 PROB OF RAIN STORMS VIS VERY POOR TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) W OF 30 - N OF 55S: SECTOR E 8/7 WITH
GUSTS PROB OF RAIN SNOW FALL VIS POOR TO MODERATE
W OF 30 - N OF 55S: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF RAIN VIS
MODERATE TO POOR
REST OF THE AREA: SECTOR E 5 WITH GUSTS PROB OF ISOL RAIN SNOW FALL VIS
MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR S 7/6 GUST WITH 8
INTENSITY DECR 5 WITH GUSTS BY 11/1200 PROB OF ISOL RAIN SNOW FALL VIS MODERATE
TO POOR
E OF 50 - S OF 55S: SE 6/5 WITH GUSTS DECR 5/4 WITH GUSTS BY 11/0600 PROB OF
ISOL RAIN SNOW FALL TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
REST OF THE AREA: VRB 3/4 INCR SECTOR N 5/6 WITH GUSTS BY 11/0600 PROB OF RAIN
SNOW FALL TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 6/7 GUST WITH 8 INTENSITY BACK SW
7/8 WITH GUSTS BY 11/1800 PROB OF RAIN SNOW FALL STARTING EARLY MORNING VIS
MODERATE TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 11, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
641/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR S WITH GUST IN 60S-63S 80W-70W UNTIL 11/1800
642/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST BACK IN 60S-65S 90W-80W FROM 11/1200 UNTIL 11/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1009HPA 61S 41W MOV E WKN
LOW 993HPA 60S 75W MOV SE DPN
LOW 973HPA 73S 50W MOV SE DPN
LOW 990HPA 72S 80W MOV SE WKN
101400 UTC 1.SEA ICE LIMIT 6614S 02000W 6617S 02518W 6613S 02753W 6521S 03227W 6228S 03509W 6255S 04154W 6302S 04651W 6218S 04928W 6158S 05227W 6213S 05625W 6416S 06313W 6647S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5747S 03622W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4908S 02700W 6X3NM ICEBERG2 4624S 02620W 4X2NM 4.ICEBERGS AREA A6800S 02000W 4200S 02000W 4200S 04100W 6100S 04100W B6100S 04100W 5500S 04100W 6200S 06716W 6830S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-12
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 4/5 WITH GUSTS INCR NE 7 GUST WITH 8 INTENSITY BY 11/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 3/4 VEER SECTOR N 4/5 WITH GUSTS BY 11/1200 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NE 4/5 WITH GUSTS INCR NE 7 GUST WITH 8 INTENSITY BY 11/1200 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5/4 VEER SECTOR N 4/5 WITH GUSTS BY 11/1200 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE
GERLACHE STRAIT : SECTOR W 3/4 WITH GUSTS VEER NE 4 BY 11/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : NW 3/4 VEER NE 4 BY 11/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SE 3/4 BACK NE 4/5 BY 11/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR S 3/4 VEER SW 5/6 WITH GUSTS BY 11/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 6/5 VEER NW 5/4 BY 11/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS VERY POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 6/5 VEER SECTOR W 4/3 BY 11/0900 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: NW 4/5 BACK NW 5/4 BY 11/0900 PROB OF FOG AND MIST IN PATCHES IMPR STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NW 6/5 WITH GUSTS BACK SECTOR W 6/5 WITH GUSTS BY 11/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/5 VEER SE 5/4 WITH GUSTS BY 11/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS MODERATE TO POOR=