1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-29, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 234: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST BETWEEN 55S-60S AND 20W-30W UNTIL 29/1500
WARNING 233: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR S WITH
GUST BETWEEN 35S-40S AND 20W-40W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1030HPA 44S 50W MOV NE NC EXP 39S 42W BY 30/1200 EXTENDS RIDGE AT 44S 50W
59S 50W EXP 39S 42W 46S 38W 54S 37W BY 30/1200
LOW 1002HPA 37S 26W MOV SE DPN EXTENDS OFNT AT 39S 20W 41S 24W 37S 30W 35S 29W
MOV SE
LOW 1010HPA 56S 70W MOV E DPN EXP 56S 49W BY 30/1200 EXTENDS CFNT AT 56S 70W 47S
67W 38S 66W MOV E EXP 56S 49W 50S 54W 41S 62W BY 30/1200
281400 UTC 1.SEA ICE LIMIT 6438S 02000W 6216S 02618W 5906S 03217W 5914S 03758W
5940S 04317W 5941S 04813W 6027S 05247W 6249S 05655W 6344S 06032W 6412S 06336W
6526S 06559W 6635S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5613S 03225W 16X7NM
3.ICEBERGS SMALLER THAN ICEBERG1 4911S 02710W 5X1NM ICEBERG2 6324S 05646W 2X1NM
ICEBERG3 6255S 05809W 3X1NM 4.ICEBERGS AREA A6444S 02000W 4403S 02000W 4403S
02600W 6251S 02600W B6251S 02600W 4403S 02600W 5000S 03800W 5818S 03800W C5818S
03800W 5000S 03800W 5857S 05600W 6247S 05600W D6247S 05600W 5857S 05600W 6500S
06716W 6825S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-30
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 4/3 BACK VRB 3 PROB OF MIST DURING THE MORNING
TEMPORARILY DISSIPATING VIS MODERATE OCNL GOOD
OUTER RIO DE LA PLATA: SECTOR E 4/3 BACK VRB 3 PROB OF MIST DURING THE MORNING
TEMPORARILY DISSIPATING VIS MODERATE OCNL GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 4 PROB OF ISOL MIST RAIN SPELLS OF GOOD
WEATHER VIS MODERATE OCNL GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR E 3 BACK SECTOR N 4 PROB OF SH
MIST SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4 BACK SECTOR W PROB OF MIST
DISSIPATING VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/4 BACK SECTOR W VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/4 BACK SECTOR S PROB OF ISOL
RAIN IMPR VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/4 BACK SECTOR S PROB OF SH FOG
PATCHES IMPR VIS MODERATE OCNL POOR TO GOOD
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5/4 BACK SECTOR S PROB OF FOG IMPR
PROB OF SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR N 6/5 WITH GUSTS BACK SECTOR S PROB OF SH RAIN
SPELLS OF GOOD WEATHER VIS POOR TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 25W: VRB 4 BACK SECTOR S 5/8 WITH GUSTS
PROB OF SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO VERY POOR
E OF 40 - W OF 25W: SECTOR S 8/4 WITH GUSTS PROB OF SH RAIN SPELLS OF GOOD
WEATHER VIS VERY POOR TO MODERATE OCNL GOOD
W OF 45W: SECTOR E 4 BACK SECTOR N 5 WITH GUSTS PROB OF ISOL SH RAIN SPELLS OF
GOOD WEATHER VIS MODERATE OCNL GOOD
REST OF THE AREA: VRB 4 LOW PROB OF ISOL RAIN VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR S 8/4 WITH GUSTS PROB
OF SH OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER VIS VERY POOR TO MODERATE
REST OF THE AREA: SECTOR S 5 VEER SECTOR W PROB OF ISOL SNOW FALL SPELLS OF
GOOD WEATHER VIS GOOD OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 5/4 VEER SECTOR N 5
WITH GUSTS LOW PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
REST OF THE AREA: SECTOR N 4/5 WITH GUSTS PROB OF SH RAIN SPELLS OF GOOD
WEATHER VIS MODERATE OCNL GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - S OF 55S: SECTOR S 8/7 WITH
GUSTS VEER SECTOR W 6 WITH GUSTS PROB OF SH OF SNOW SNOW FALL SPELLS OF GOOD
WEATHER VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 7/6 WITH GUSTS VEER SECTOR W PROB OF SH OF SNOW SNOW
FALL SPELLS OF GOOD WEATHER VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 6/5 WITH GUSTS PROB
OF SH OF RAIN SH OF SNOW SPELLS OF GOOD WEATHER VIS POOR OCNL MODERATE
REST OF THE AREA: NW 5 WITH GUSTS BACK SECTOR S 6 WITH GUSTS PROB OF SH OF RAIN
SH OF SNOW SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 4 BACK SECTOR S 6/5 WITH GUSTS PROB
OF RAIN SNOW FALL STARTING NIGTH IMPR VIS MODERATE OCNL POOR TO GOOD
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 29, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
726/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MAR DE LA FLOTA COASTS MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 62S-65S 60W-50W UNTIL 29/2100
727/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 GUST WITH 9 INTENSITY IN 63S-71S 90W-80W UNTIL 30/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 994HPA 64S 55W MOV SE DPN
LOW 989HPA 69S 57W MOV SE DPN
HIGH 991HPA 70S 46W MOV E WKN
RIDGE 60S 42W 64S 43W 68S 44W MOV E WKN
LOW 1008HPA 60S 67W MOV SE DPN
281400 UTC 1.SEA ICE LIMIT 6438S 02000W 6216S 02618W 5906S 03217W 5914S 03758W 5940S 04317W 5941S 04813W 6027S 05247W 6249S 05655W 6344S 06032W 6412S 06336W 6526S 06559W 6635S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5613S 03225W 16X7NM 3.ICEBERGS SMALLER THAN ICEBERG1 4911S 02710W 5X1NM ICEBERG2 6324S 05646W 2X1NM ICEBERG3 6255S 05809W 3X1NM 4.ICEBERGS AREA A6444S 02000W 4403S 02000W 4403S 02600W 6251S 02600W B6251S 02600W 4403S 02600W 5000S 03800W 5818S 03800W C5818S 03800W 5000S 03800W 5857S 05600W 6247S 05600W D6247S 05600W 5857S 05600W 6500S 06716W 6825S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-30
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 4/3 BACK SW 4/5 BY 30/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 5/7 WITH GUSTS BACK SECTOR W 5/4 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 4/3 BACK SW 4/5 BY 30/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 5/7 WITH GUSTS BACK SECTOR W 5/4 BY 30/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS MODERATE TO GOOD
GERLACHE STRAIT : SW 3/4 BACK SE 4 BY 30/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : SECTOR N 3/4 VEER NE 4 BY 30/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NIGTH VIS POOR TO MODERATE OCNL GOOD
EREBUS Y TERROR GULF : SW 5/6 GUST WITH 8 INTENSITY DECR SW 5/4 BY 30/0600 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 4/5 VEER NW 5/6 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 4/5 VEER NW 5/6 BY 29/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 4/5 INCR NW 7/8 WITH GUSTS BY 29/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 4/5 INCR SECTOR N 7/8 WITH GUSTS BY 30/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA W OF 40W: NW 5/6 INCR SECTOR W 7/8 WITH GUSTS BY 29/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 5/4 WITH GUSTS BACK SW 5/4 BY 29/2100 PROB OF MIST PROB OFMOD SNOW FALL WORSENING DURING THE NIGTH VIS MODERATE TO POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 4/5 WITH GUSTS BACK SE 4/3 BY 29/1800 VIS GOOD=