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SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

00:00 UTC 09, MAY 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

504/2025 STRONG BARIC GRADIENT PROVOKES WINDS FORCE 9 FROM NE WITH GUST IN NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA

505/2025 LOW 961HPA AT 62S 38W MOV NE PROVOKES WINDS FORCE 8 AROUND ITSELF WITH GUST IN NORTHERN WEDDELL SEA

PART 2 GENERAL SYNOPSIS AT 21:00UTC

LOW 961HPA 62S 38W MOV NE

RIDGE 60S 58W 65S 58W MOV E

LOW 960HPA 64S 90W MOV S EXP 70S 90W BY 09/1800

081400 UTC 1.SEA ICE LIMIT 6150S 02000W 6238S 02437W 6331S 02941W 6350S 03527W 6207S 03654W 6239S 04218W 6253S 04815W 6348S 05034W 6347S 05403W 6301S 05807W 6359S 06331W 6602S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5448S 03902W 40X32NM A76C 6101S 04826W 16X7NM A74A 6057S 05136W 30X18NM A77 6353S 05456W 27X4NM A23C 5547S 03439W 10X5NM 3.ICEBERGS SMALLER THAN 10NM A80A 6129S 05217W 9X7NM ICEBERG1 6109S 05017W 9X3NM ICEBERG2 5525S 03543W 2X1NM ICEBERG3 6056S 03844W 3X1NM ICEBERG4 5214S 03610W 7X1NM ICEBERG5 6200S 03803W 2X1NM ICEBERG6 5515S 03333W 3X1NM ICEBERG7 5626S 03537W 4X1NM ICEBERG8 5529S 03725W 2X1NM ICEBERG9 5232S 03709W 6X2NM ICEBERG10 6056S 04854W 6X5NM ICEBERG11 6129S 04840W 3X1NM ICEBERG12 6156S 05103W 3X1NM ICEBERG13 6144S 04920W 2X1NM ICEBERG14 6218S 04301W 7X2NM ICEBERG15 6328S 05418W 6X2NM ICEBERG16 6421S 05540W 4X2NM ICEBERG17 5220S 03650W 4X1NM ICEBERG18 5337S 04018W 2X1NM ICEBERG19 6121S 04904W 2X1NM ICEBERG20 6127S 04856W 2X1NM ICEBERG21 5223S 03642W 3X1NM 4.ICEBERGS AREA A: 5200S 02000W 4800S 02000W 4900S 04300W 5900S 04300W B: 6300S 02000W 5200S 02000W 5500S 05000W 6500S 05000W C: 5500S 05000W 6500S 05000W 6830S 06716W 6030S 06716W

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-05-10

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 4/6 WITH GUSTS BY 08/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR E 4 VIS GOOD

MAR DE LA FLOTA COASTS W OF 60W: NE 4/6 WITH GUSTS BY 08/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 4/3 VIS GOOD

GERLACHE STRAIT : NE 3/5 VIS GOOD

MARGARITA BAY : NE 5/6 WITH GUSTS VIS GOOD

EREBUS Y TERROR GULF : SW 5/4 PROB OF FOG AND MIST IN PATCHES VIS GOOD OCNL VERY POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80 - N OF 65S: W 7 WITH GUSTS VEER NW 5 WITH GUSTS BY 9/2100 PROB OF MIST PROB OFHVY RAIN VIS VERY POOR

NORTHER BELLINGSHAUSEN SEA E OF 80 - N OF 65S: NE 8 WITH GUSTS BACK SECTOR W 5 BY 9/1800 PROB OF MIST PROB OFISOL RAIN VIS MODERATE TO POOR

NORTHER BELLINGSHAUSEN SEA W OF 80 - S OF 65S: NE 8 WITH GUSTS BACK SECTOR W 5 BY 9/2100 PROB OF MIST PROB OFHVY SNOW FALL VIS VERY POOR

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 8/9 WITH GUSTS PROB OF MIST PROB OFISOL SNOW FALL VIS MODERATE TO POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 8/9 WITH GUSTS PROB OF MIST PROB OFHVY SNOW FALL VIS VERY POOR TO POOR

NORTHERN WEDDELL SEA W OF 35 - N OF 63S: SECTOR S 9/8 WITH GUSTS DECR 6 BY 9/1200 PROB OF MIST PROB OF SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR

NORTHERN WEDDELL SEA E OF 35 - N OF 63S: SECTOR E 9 WITH GUSTS VEER SECTOR S 5 WITH GUSTS BY 9/1800 PROB OF MIST PROB OF SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR

NORTHERN WEDDELL SEA W OF 40 - S OF 63S: SECTOR S 7/5 WITH GUSTS PROB OF MIST VIS MODERATE OCNL POOR

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 5 WITH GUSTS VEER SECTOR S BY 9/1800 PROB OF MIST PROB OFISOL SNOW FALL VIS POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 4 VIS GOOD=