1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-17, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 217: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS DRAKE
AREA (55S- 60S AND 60W- 67W) FROM 18/0300
WARNING 215: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 9 FROM SW WITH
GUST IN ISLAS MALVINAS COASTS CENTRAL WEST AREA (40S- 50S AND 40W- 60W) SOUTH
WEST AREA (50S- 60S AND 40W- 60W) DRAKE AREA (55S- 60S AND 60W- 67W)
WARNING 213: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR N
WITH GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W)
WARNING 209: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN
FIN DEL MUNDO COASTS UNTIL 17/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 952HPA 57S 38W MOV SE DPN EXTENDS CFNT AT 57S 38W 45S 46W 40S 61W MOV SE
ASOCIATED WITH OFNT AT 57S 38W 56S 47W 52S 43W
LOW 996HPA 47S 33W MOV SE EXTENDS CFNT AT 47S 33W 36S 46W 34S 55W MOV SE
161400 UTC 1.SEA ICE LIMIT 6517S 02000W 6402S 02618W 5933S 03217W 6039S 03758W
6017S 04317W 6105S 04814W 6131S 05247W 6316S 05655W 6342S 06032W 6412S 06337W
6529S 06558W 6640S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5824S 03329W 16X7NM
3.ICEBERGS SMALLER THAN ICEBERG1 4937S 02654W 5X1NM ICEBERG2 4543S 02633W 4X2NM
4.ICEBERGS AREA A6545S 02000W 4200S 02000W 4200S 03700W 6100S 03700W B6100S
03700W 5000S 03700W 5900S 05000W 6120S 05000W C6120S 05000W 5900S 05000W 6300S
06716W 6657S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-18
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR S 4/3 PROB OF DRIZZLE RAIN NEXT IMPR SLOWLY VIS
MODERATE TO GOOD
OUTER RIO DE LA PLATA: SECTOR S 4/3 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 4 DECR 3 BY 18/0000 PROB OF DRIZZLE RAIN
SPELLS OF GOOD WEATHER VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SW 5 DECR 4 BY 18/0300 PROB OF SH DURING
THE MORNING VIS GOOD OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 4/5 BACK SECTOR S 4/3 BY
17/2100 VEER SECTOR W BY 18/0600 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 5/4 DECR 3 BY 17/2100 VEER
SECTOR N 4/5 BY 18/0600 PROB OF MIST STARTING EARLY MORNING VIS GOOD OCNL
MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 6/5 WITH GUSTS VEER VRB 3/4 BY
17/1800 VEER SECTOR W 4/5 BY 18/0300 VIS GOOD OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SW 6/7 WITH GUSTS DECR 6/5 BY 17/2100 VEER
SECTOR W 6/7 GUST WITH 8 INTENSITY BY 18/0300 VIS VERY POOR TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SW 7/8 WITH GUSTS VEER SECTOR W 6/7 WITH
GUSTS BY 17/1800 INCR 7/8 WITH GUSTS BY 18/0300 PROB OF DRIZZLE RAIN SPELLS OF
GOOD WEATHER VIS VERY POOR
ISLAS MALVINAS COASTS: SW 8/7 WITH GUSTS DECR 7/6 BY 17/1800 VEER SECTOR W 7/8
WITH GUSTS BY 18/0600 PROB OF RAIN SNOW FALL VIS VERY POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: NW 6/7 WITH GUSTS BACK SECTOR W BY
18/0900 PROB OF RAIN STORMS VIS POOR
REST OF THE AREA: SECTOR W 5/6 WITH GUSTS PROB OF SH RAIN NEXT IMPR SLOWLY VIS
POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR N 6/7 WITH GUSTS BACK SECTOR W
BY 18/0600 PROB OF RAIN STORMS NXT PROB OF SH VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SW 7/8 GUST WITH 9 INTENSITY DECR 7/6
BY 18/0600 VEER SECTOR W BY 18/0900 PROB OF SH RAIN STARTING EARLY MORNING IMPR
VIS VERY POOR TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR N 7/8 WITH GUSTS BACK SECTOR W
6/7 GUST WITH 8 INTENSITY BY 18/0300 PROB OF RAIN SNOW FALL VIS VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SW 9/8 WITH GUSTS VEER SECTOR W 6/7
GUST WITH 8 INTENSITY BY 17/2100 PROB OF SH OF SNOW NXT PROB OF RAIN SNOW FALL
VIS VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 9/7 WITH GUSTS DECR 7/6 BY 17/1800 VEER
SECTOR W 6/8 WITH GUSTS BY 17/2100 PROB OF SH SH OF SNOW RAIN SNOW FALL VIS VERY
POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 17, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
679/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV NE WEAKENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-64S 70W-65W UNTIL 17/1800
680/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 63S-67S 59W-50W UNTIL 17/2100
681/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-65S 90W-70W UNTIL 18/0600
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 960HPA 63S 40W MOV E DPN
LOW 972HPA 71S 45W MOV E WKN
LOW 977HPA 68S 89W MOV SE DPN
RIDGE 60S 70W 64S 70W 68S 73W MOV E INTSF
161400 UTC 1.SEA ICE LIMIT 6517S 02000W 6402S 02618W 5933S 03217W 6039S 03758W 6017S 04317W 6105S 04814W 6131S 05247W 6316S 05655W 6342S 06032W 6412S 06337W 6529S 06558W 6640S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5824S 03329W 16X7NM 3.ICEBERGS SMALLER THAN ICEBERG1 4937S 02654W 5X1NM ICEBERG2 4543S 02633W 4X2NM 4.ICEBERGS AREA A6545S 02000W 4200S 02000W 4200S 03700W 6100S 03700W B6100S 03700W 5000S 03700W 5900S 05000W 6120S 05000W C6120S 05000W 5900S 05000W 6300S 06716W 6657S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-18
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 6/5 WITH GUSTS INCR SECTOR W 7/8 WITH GUSTS BY 18/0000 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 8 GUST WITH 9 INTENSITY DECR SW 7/5 BY 18/0000 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 6/5 WITH GUSTS INCR SECTOR W 7/8 WITH GUSTS BY 18/0000 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 8 GUST WITH 9 INTENSITY DECR SW 6/5 BY 17/2100 AFTERWARDS SE 7 WITH GUSTS BY 18/0600 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
GERLACHE STRAIT : SECTOR E 4/3 BACK SE 4/3 BY 18/0300 PROB OF MIST IMPR TOWARDS NIGTH VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR E 3/4 BACK NE 4 BY 18/0300 VIS GOOD
EREBUS Y TERROR GULF : SW 8 GUST WITH 9 INTENSITY DECR SW 7 WITH GUSTS BY 17/2100 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS VERY POOR TO POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: NW 8 GUST WITH 9 INTENSITY BACK SECTOR W 9 WITH GUSTS BY 17/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR E 4/5 WITH GUSTS VEER SE 5/6 WITH GUSTS BY 17/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 4/3 VEER SECTOR S 4/3 BY 17/2100 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SW 6/7 WITH GUSTS DECR SW 5/4 BY 18/0300 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 3/4 VEER SE 4/5 BY 17/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING STARTING EVENING VIS GOOD TO MODERATE OCNL VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 5/4 VEER SECTOR E 4 BY 18/0300 PROB OF MIST PROB OFMOD SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD=