1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 15, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
663/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-66S 90W-80W FROM 15/1200 UNTIL 16/1500
664/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-64S 70W-50W FROM 15/2100
665/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN 65S-69S 59W-50W FROM 15/0600 UNTIL 16/0300
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 947HPA 70S 49W MOV E DPN
LOW 960HPA 67S 35W MOV SE DPN
141400 UTC 1.SEA ICE LIMIT 6535S 02000W 6421S 02617W 6005S 03217W 6048S 03757W 6057S 04317W 6128S 04813W 6131S 05248W 6316S 05655W 6349S 06032W 6447S 06401W 6615S 06559W 6645S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5737S 03443W 16X7NM 3.ICEBERGS SMALLER THAN ICEBERG1 4938S 02708W 5X1NM ICEBERG2 4552S 02631W 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-16
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 6/7 GUST WITH 8 INTENSITY INCR SW 8 WITH GUSTS BY 15/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING TOWARDS MORNING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 8/9 WITH GUSTS BACK SW 7/6 WITH GUSTS BY 15/1500 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 5/7 BACK SW 6/5 BY 14/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 8/9 WITH GUSTS BACK SW 7/6 WITH GUSTS BY 15/1500 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
GERLACHE STRAIT : SW 8/6 WITH GUSTS DECR SW 5/4 WITH GUSTS BY 15/1200 PROB OF MIST PROB OFMOD SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : NE 3/4 VEER SECTOR E 4/3 BY 15/1200 PROB OF MIST VIS GOOD
EREBUS Y TERROR GULF : SW 5/6 WITH GUSTS INCR SW 7/8 WITH GUSTS BY 15/1500 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 7/6 WITH GUSTS DECR SW 5/4 WITH GUSTS BY 15/0900 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 W 7/5 WITH GUSTS BACK SW 5/4 BY 15/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 5/4 BACK SECTOR S 4 BY 15/1500 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL IMPR TOWARDS NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SECTOR W 5/6 WITH GUSTS INCR SECTOR W /7 GUST WITH 8 INTENSITY BY 15/0900 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NW 5/6 WITH GUSTS VEER SECTOR N 5 BY 15/0600 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 7 GUST WITH 8 INTENSITY VEER SE 7/6 WITH GUSTS BY 15/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-15, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 208: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN FIN DEL MUNDO COASTS DRAKE AREA (55S- 60S AND 60W- 67W) UNTIL 15/0600
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 981HPA 51S 28W MOV E WKN EXP BY 16/0000 EXTENDS CFNT AT 46S 27W 40S 28W 35S
33W MOV E
HIGH 1020HPA 34S 58W MOV NE NC EXP BY 16/0000
CFNT AT 59S 35W 53S 42W 49S 51W MOV E
141400 UTC 1.SEA ICE LIMIT 6535S 02000W 6421S 02617W 6005S 03217W 6048S 03757W
6057S 04317W 6128S 04813W 6131S 05248W 6316S 05655W 6349S 06032W 6447S 06401W
6615S 06559W 6645S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5737S 03443W 16X7NM
3.ICEBERGS SMALLER THAN ICEBERG1 4938S 02708W 5X1NM ICEBERG2 4552S 02631W 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-16
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3/4 INCR SECTOR N 5 BY 15/1200 LOW PROB OF COASTAL
MIST DURING THE EARLY MORNING DISSIPATING TOWARDS MORNING VIS GOOD OCNL
MODERATE
OUTER RIO DE LA PLATA: SECTOR W 3/4 VEER SECTOR N 5 WITH GUSTS BY 15/1800 LOW
PROB OF COASTAL MIST DURING THE EARLY MORNING DISSIPATING TOWARDS MORNING VIS
GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SW 4 VEER W BY 15/0900 VEER N BY 15/2100 PROB OF
COASTAL MIST DURING THE EARLY MORNING DISSIPATING STARTING EARLY MORNING VIS
GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 4/5 WITH GUSTS VEER SECTOR N BY
15/2100 PROB OF RAIN ISOL SH SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): VRB 3/4 INCR NW 5 WITH GUSTS BY
15/0600 BACK SECTOR S 6 WITH GUSTS BY 15/2300 PROB OF ISOL RAIN TOWARDS THE END
OF THE PERIOD VIS GOOD TO MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): VRB 3/4 INCR SECTOR S 5/6 WITH GUSTS BY
15/0900 PROB OF RAIN ISOL SH STARTING EVENING VIS GOOD TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 3/4 INCR SECTOR S 5/6 WITH GUSTS BY
15/1800 LOW PROB OF ISOL RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SW 6/7 GUST WITH 8 INTENSITY PROB OF ISOL
RAIN IMPR TOWARDS THE END OF THE PERIOD VIS POOR OCNL VERY POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 8/7 GUST WITH 8 INTENSITY PROB OF
RAIN AND SNOW MIXTURE STARTING EARLY MORNING SPELLS OF GOOD WEATHER VIS VERY
POOR TO POOR
ISLAS MALVINAS COASTS: SW 5/6 GUST WITH 8 INTENSITY PROB OF ISOL RAIN NXT RAIN
AND SNOW MIXTURE TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR W 7/6 GUST WITH 8 INTENSITY
DECR VRB 4/3 BY 15/1200 PROB OF RAIN ISOL SH VIS POOR TO MODERATE
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 6 WITH GUSTS PROB
OF RAIN ISOL SH VIS MODERATE OCNL POOR
W OF 30 - N OF 45S: SECTOR W 6 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE
REST OF THE AREA: W 6 WITH GUSTS VEER NW 7 GUST WITH 8 INTENSITY BY 15/1500
PROB OF ISOL RAIN VIS MODERATE TO POOR OCNL VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR W 6 WITH GUSTS PROB
OF ISOL RAIN VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS BACK SECTOR S BY 15/2100 PROB OF ISOL
RAIN VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 6/5 WITH GUSTS PROB
OF ISOL RAIN VIS MODERATE
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF SNOW FALL VIS POOR
OCNL VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: SECTOR W 6 WITH
GUSTS PROB OF ISOL RAIN VIS MODERATE
W OF 50 - N OF 55S: SECTOR W 5/6 WITH GUSTS TEMPO BACK SW BY 15/1500 PROB OF
RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY PROB OF SNOW FALL VIS POOR
OCNL VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8/7 WITH GUSTS PROB OF RAIN AND
SNOW MIXTURE VIS VERY POOR TO POOR
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