1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 10, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
638/2026 STRONG BARIC GRADIENT GERLACHE STRAIT MOV SE WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR E WITH GUST IN 64S-66S 70W-66W UNTIL 10/1500
639/2026 STRONG BARIC GRADIENT ON EREBUS Y TERROR GULF MOV SE WEAKENING PROVOKES WINDS FORCE 8 WITH GUST IN 64S-68S 59W-50W UNTIL 10/1800
640/2026 STRONG BARIC GRADIENT ON NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 63S-69S 50W-40W UNTIL 11/0000
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1014HPA 60S 43W MOV E WKN EXTENDS RIDGE AT 60S 43W 63S 38W 66S 30W MOV E
LOW 982HPA 68S 57W MOV SE DPN EXTENDS CFNT AT 68S 57W 64S 55W 60S 56W MOV E
081400 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 5815S 03629W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4917S 02649W 6X3NM ICEBERG2 5126S 02612W 5X3NM ICEBERG3 4702S 02728W 2X1NM ICEBERG4 4629S 02628W 4X2NM ICEBERG5 5742S 03608W 2X1NM 4.ICEBERGS AREA A6659S 02000W 4324S 02000W 4207S 03513W 6207S 03425W B6207S 03425W 4205S 03413W 6002S 05603W 6328S 05500W C6328S 05500W 6002S 05503W 6445S 06716W 6638S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-11
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 4/5 VEER SECTOR N 3/4 BY 11/0000 PROB OF FOG PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7/5 BACK SECTOR W 4/5 WITH GUSTS BY 10/1800 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE IMPR GRADUALLY DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 4/5 WITH GUSTS VEER SECTOR N 3/4 BY 11/0000 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: NW 7/5 BACK SECTOR W 5/4 WITH GUSTS BY 10/1800 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE
GERLACHE STRAIT : SECTOR W 6/5 WITH GUSTS VEER NW 4 BY 10/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : NW 6/5 VEER SECTOR N 4 BY 10/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 5/4 WITH GUSTS VEER NE 4 BY 11/0300 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 3/4 BACK SW 5/6 WITH GUSTS BY 10/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO VERY POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 7 WITH GUSTS VEER NW 6/5 BY 11/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 6/5 VEER SECTOR W 4/5 BY 10/1800 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: NW 4/5 INCR NW 6/8 WITH GUSTS BY 10/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR N 7/8 WITH GUSTS BACK NW 7/5 WITH GUSTS BY 10/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 BACK NE 5/6 WITH GUSTS BY 11/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO POOR =
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-10, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 200: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM NW WITH GUST
BETWEEN 35S-45S 20W-35W
WARNING 199: LOW 972HPA AT 44S 47W DEEPENING EXPECTED 45S 39W BY 10/2100
PROVOKES WINDS FORCE 8 FROM SECTOR S WITH GUST BETWEEN 40S-50S AND 50W-60W
WARNING 194: LOW 972HPA AT 44S 47W DEEPENING EXPECTED 45S 39W BY 10/2100
PROVOKES WINDS FORCE 8 FROM NW WITH GUST BETWEEN 35S-45S AND 40W-50W
WARNING 192: LOW 972HPA AT 44S 47W DEEPENING EXPECTED 45S 39W BY 10/2100
PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN OUTER RIO DE LA PLATA URUGUAY SOUTH
EAST COASTS MAR DEL PLATA COASTS RINCON BAHIA BLANCA COASTS BETWEEN 35S-40S AND
50W-55W
WARNING 191: LOW 972HPA AT 44S 47W DEEPENING EXPECTED 45S 39W BY 10/2100
PROVOKES WINDS FORCE 8 FROM SE WITH GUST BETWEEN 50S-55S AND 40W-50W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 972HPA 44S 47W DPN EXP 45S 39W BY 10/2100 EXTENDS CFNT AT 48S 32W 35S 36W
20S 50W MOV E ASOCIATED WITH OFNT AT 38S 47W 47S 53W 49S 34W
HIGH 1020HPA 50S 46W MOV E NC
091400 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 5759S 03636W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4908S 02700W 6X3NM ICEBERG2 5126S 02612W
5X3NM ICEBERG3 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 2026-05-11
COASTAL AREAS:
INNER RIO DE LA PLATA: SW 6/5 WITH GUSTS BACK SECTOR W 5 WITH GUSTS BY 10/1200
PROB OF SH STARTING EARLY MORNING NEXT IMPR VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SW 8/7 WITH GUSTS DECR 7/6 WITH GUSTS BY 10/1200 DECR 6/5
WITH GUSTS BY 10/2100 PROB OF SH IMPR TOWARDS EVENING VIS POOR TO MODERATE
URUGUAY SOUTH EAST COASTS: SW 8/7 WITH GUSTS DECR 7/6 WITH GUSTS BY 10/1200 PROB
OF SH VIS POOR TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SW 8/7 WITH GUSTS DECR 7/6 WITH GUSTS BY
10/1200 DECR 6 WITH GUSTS BY 10/1800 PROB OF SH VIS POOR OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 8/7 WITH GUSTS DECR 7/6 WITH GUSTS
BY 10/1200 DECR 6 WITH GUSTS BY 10/1800 PROB OF SH VIS POOR OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SW 7/6 WITH GUSTS DECR 6 WITH GUSTS BY
10/1500 DECR PROB OF SH VIS MODERATE TO POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SW 7/5 WITH GUSTS DECR 5/4 BY 10/1800
PROB OF SH IMPR VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 6/5 WITH GUSTS DECR 5/4 BY 10/1800
PROB OF SH IMPR VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 6/5 WITH GUSTS DECR 5/4 BY 10/1800
PROB OF SH SPELLS OF GOOD WEATHER VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR S 7/5 WITH GUSTS PROB OF SH VIS MODERATE OCNL
POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: NW 8/7 WITH GUSTS DECR 7 GUST WITH
8 INTENSITY BY 10/2100 PROB OF RAIN VIS POOR
E OF 50W: NW 8 WITH GUSTS VEER SECTOR W 8 WITH GUSTS BY 10/1200 PROB OF RAIN
VIS VERY POOR TO POOR
REST OF THE AREA: SW 8/7 WITH GUSTS PROB OF SH RAIN VIS POOR OCNL VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: NW 8/7 WITH GUSTS
DECR 6 WITH GUSTS BY 10/1500 DECR PROB OF RAIN VIS POOR TO MODERATE
W OF 30 - N OF 45S: NW 7/8 WITH GUSTS INCR 8 GUST WITH 9 INTENSITY BY 10/1800
PROB OF RAIN VIS VERY POOR TO POOR
E OF 30 - S OF 45S: NE 6 WITH GUSTS VEER SECTOR N 5 WITH GUSTS BY 10/0600 PROB
OF SH RAIN VIS MODERATE
REST OF THE AREA: SECTOR N 6 WITH GUSTS INCR 7 GUST WITH 8 INTENSITY BY 10/2100
PROB OF RAIN VIS MODERATE TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: NW 8 WITH GUSTS
INCR 8/9 WITH GUSTS BY 10/0900 BACK SECTOR W 8 WITH GUSTS BY 10/1800 PROB OF
RAIN VIS VERY POOR TO POOR
E OF 50 - S OF 45S: SECTOR S 7/8 WITH GUSTS PROB OF RAIN VIS POOR OCNL VERY
POOR
E OF 55W: SECTOR S 8 WITH GUSTS PROB OF RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 8 WITH GUSTS DECR 7/6 WITH GUSTS BY 10/1500 PROB OF
SH VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR E 7/5 WITH
GUSTS PROB OF SH VIS MODERATE
W OF 30 - N OF 55S: SECTOR E 7/8 WITH GUSTS PROB OF RAIN VIS POOR
REST OF THE AREA: SECTOR E 5 VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: SE 8 WITH GUSTS DECR
8/9 WITH GUSTS BY 10/1800 PROB OF RAIN VIS POOR
W OF 50 - N OF 55S: SECTOR S 7/6 WITH GUSTS DECR 6 WITH GUSTS BY 10/1800 PROB
OF SH VIS MODERATE OCNL POOR
E OF 50 - S OF 55S: SECTOR E 6/5 WITH GUSTS VIS MODERATE
REST OF THE AREA: SECTOR N 5 VEER VRB 4 BY 10/1800 PROB OF SH VIS MODERATE TO
GOOD
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 5 WITH GUSTS VEER NW 4 BY 10/2100
PROB OF SH SPELLS OF GOOD WEATHER VIS MODERATE TO GOOD
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