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SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

00:00 UTC 03, MAY 2025.

NATIONAL WEATHER SERVICE (NWS)

SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS

PART 1 GALE WARNING:

483/2025 LOW 966HPA AT 73S 90W MOV S WEAKENING PROVOKES WINDS FORCE 9 FROM NE WITH GUST IN SOUTHERN BELLINGSHAUSEN SEA UNTIL 03/0900

484/2025 STRONG BARIC GRADIENT MOV SE NOT CHANGE WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-63S 64W-50W FROM 03/1800 UNTIL 04/0300

PART 2 GENERAL SYNOPSIS AT 21:00UTC

LOW 966HPA 73S 90W MOV S WKN EXTENDS CFNT AT 73S 90W 68S 78W 60S 78W

RIDGE 60S 43W 70S 40W MOV E INTSF

021400 UTC 1.SEA ICE LIMIT 6903S 02000W 6600S 06540W 6553S 06613W 6346S 05812W 6259S 05603W 6447S 06401W 6423S 06306W 6341S 06037W 6555S 06601W 6440S 06241W 6407S 06144W 6602S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5448S 03903W 40X32NM A76C 6106S 04843W 16X7NM A74A 6112S 05106W 30X18NM A77 6402S 05429W 27X4NM A23C 5640S 03409W 10X5NM 3.ICEBERGS SMALLER THAN 10NM A80A 6126S 05232W 9X7NM ICEBERG1 6127S 05209W 9X3NM ICEBERG2 5525S 03543W 2X1NM ICEBERG3 6109S 03925W 3X1NM ICEBERG4 5300S 03525W 7X1NM ICEBERG5 6207S 03859W 2X1NM ICEBERG6 5552S 03310W 3X1NM ICEBERG7 5622S 03520W 4X1NM ICEBERG8 5506S 03722W 2X1NM ICEBERG9 5407S 03803W 3X1NM ICEBERG10 5308S 03610W 9X2NM ICEBERG11 6056S 04920W 6X5NM ICEBERG12 6136S 04940W 3X1NM ICEBERG13 5432S 03731W 8X1NM ICEBERG14 6207S 05156W 3X1NM ICEBERG15 6126S 05006W 2X1NM ICEBERG16 6225S 04355W 7X2NM ICEBERG17 6357S 05445W 6X2NM ICEBERG18 6427S 05530W 4X2NM ICEBERG19 6302S 05350W 5X1NM 4.ICEBERGS AREA A: 6333S 02000W 4658S 02000W 4800S 04257W 6258S 04300W B: 6258S 04300W 5600S 04300W 5600S 04800W 6154S 05800W C: 6154S 05800W 6000S 05800W 6000S 06716W 6642S 06716W

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-05-4

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 5 VEER SECTOR E 5/6 BY 3/1500 PROB OF FOG PROB OFMOD HVY RAIN WORSENING DURING THE MORNING VIS VERY POOR TO POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 5/6 WITH GUSTS VEER NE 6/7 GUST WITH 8 INTENSITY BY 3/1800 PROB OF ISOL RAIN WORSENING DURING THE MORNING VIS VERY POOR TO POOR

MAR DE LA FLOTA COASTS W OF 60W: NE 5 VEER SECTOR E 5/6 BY 3/1800 PROB OF ISOL RAIN WORSENING DURING THE MORNING VIS VERY POOR TO POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 5/6 WITH GUSTS VEER NE 6/7 GUST WITH 8 INTENSITY BY 3/2300 PROB OF ISOL RAIN WORSENING DURING THE MORNING VIS VERY POOR TO POOR

GERLACHE STRAIT : NE 4/5 LOW PROB OF RAIN STARTING EVENING VIS VERY POOR TO POOR

MARGARITA BAY : NE 5 PROB OF ISOL RAIN WORSENING DURING THE MORNING VIS VERY POOR TO POOR

EREBUS Y TERROR GULF : NW 6/7 GUST WITH 8 INTENSITY PROB OF FOG MIST PROB OFISOL SNOW FALL VIS VERY POOR TO POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80 - N OF 64S: SECTOR W 4/3 VEER SECTOR N BY 02/0300 VIS GOOD

NORTHER BELLINGSHAUSEN SEA S OF 80 - N OF 64S: SECTOR N 4 VEER SECTOR S 6/7 BY 3/1500 PROB OF MIST PROB OFMOD HVY RAIN AND SNOW MIXTURE STARTING EARLY MORNING VIS MODERATE TO POOR

NORTHER BELLINGSHAUSEN SEA W OF 80 - S OF 64S: NW 5 WITH GUSTS PROB OF MIST LOW PROB OFISOL SNOW FALL VIS MODERATE OCNL POOR

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR N 6/5 DECR 4/3 BY 3/0900 PROB OF MIST LOW PROB OFISOL SNOW FALL VIS MODERATE OCNL POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 8/9 VEER SECTOR W 5/4 BY 3/0600 PROB OF MIST LOW PROB OFISOL SNOW FALL VIS MODERATE OCNL POOR

NORTHERN WEDDELL SEA W OF 40W: NW 4/4 INCR 5/6 WITH GUSTS BY 3/0600 PROB OF MIST PROB OFISOL SNOW FALL STARTING EARLY MORNING VIS MODERATE OCNL POOR

NORTHERN WEDDELL SEA REST OF THE AREA: SW 5/4 VEER NW BY 3/1800 PROB OF MIST PROB OFISOL SNOW FALL STARTING NIGTH VIS MODERATE OCNL POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR N 3 PROB OF MIST VIS MODERATE OCNL POOR=