WWAA02 SAWB 201200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 20, AUGUST 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 STORM WARNING:

919/2025 STRONG BARIC GRADIENT PROVOKES WINDS FORCE 10 FROM E WITH GUST IN 66S-70S 60W-80W UNTIL 21/1800

GALE WARNING:

920/2025 STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 9 FROM NE IN 63S-68S 56W-70W FROM 21/0000

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 966HPA 65S 80W NOT MOV WKN EXTENDS TROUGH AT 65S 80W 88S 90W

RIDGE 60S 36W 70S 40W MOV E

LOW 984HPA 63S 53W MOV E DPN

191400 UTC 1.SEA ICE LIMIT 6701S 02000W 6559S 06600W 6506S 06413W 6322S 05816W 6435S 06415W 6317S 06215W 6223S 05951W 6654S 06656W 6311S 05719W 6111S 05407W 6106S 05527W 6227S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5409S 03457W 40X32NM A74A 5808S 04627W 27X17NM A77 6103S 05701W 27X4NM A76C 5954S 04754W 16X7NM B15AB 6113S 05209W 11X4NM 3.ICEBERGS SMALLER THAN 10NM A23D 5156S 03806W 8X4NM A23E 5219S 03358W 9X4NM ICEBERG1 5332S 03908W 12X2NM ICEBERG2 5348S 03436W 3X1NM ICEBERG3 5121S 03114W 3X3NM ICEBERG4 6020S 05219W 9X2NM ICEBERG5 5143S 02644W 2X1NM ICEBERG6 5550S 04139W 4X2NM ICEBERG7 5246S 03642W 3X2NM ICEBERG8 4949S 02626W 3X2NM ICEBERG9 5329S 03331W 3X1NM ICEBERG10 5202S 03607W 3X1NM ICEBERG11 5149S 03723W 3X1NM ICEBERG12 4915S 02601W 3X1NM ICEBERG13 5307S 03625W 4X1NM ICEBERG14 5139S 03852W 3X1NM ICEBERG15 5421S 03420W 3X1NM ICEBERG16 6033S 05510W 6X4NM ICEBERG17 5429S 03453W 4X1NM ICEBERG18 5152S 03633W 2X1NM ICEBERG19 5237S 03750W 3X2NM 4.ICEBERGS AREA A: 5800S 03500W 4500S 03500W 4500S 02000W 5800S 02000W B: 6100S 05000W 5400S 05000W 5000S 03500W 5800S 03500W C: 6700S 06716W 6200S 06716W 5600S 05000W 6100S 05000W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-08-21

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 5 VEER NE 7 GUST WITH 8 INTENSITY BY 20/2100 PROB OF FOG MIST PROB OFMOD HVY RAIN SNOW FALL ISOL VIS VERY POOR TO POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7/6 WITH GUSTS VEER NE 5/6 BY 20/2100 PROB OF FOG MIST PROB OFMOD HVY RAIN SNOW FALL ISOL VIS VERY POOR TO POOR

MAR DE LA FLOTA COASTS W OF 60W: NE 5 INCR 8 WITH GUSTS BY 21/0000 PROB OF FOG MIST PROB OFMOD HVY RAIN SNOW FALL ISOL VIS VERY POOR TO POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SW 5/6 DECR 3/4 BY 21/0300 PROB OF FOG MIST PROB OFHVY RAIN SNOW FALL TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

GERLACHE STRAIT : NE 8/7 GUST WITH 9 INTENSITY PROB OF ISOL SNOW FALL DURING THE EARLY MORNING VIS GOOD OCNL MODERATE

MARGARITA BAY : E 9/10 WITH GUSTS PROB OF MOD INTERMITTENT SNOW FALL VIS MODERATE OCNL VERY POOR

EREBUS Y TERROR GULF : SW 5/6 DECR 3/4 BY 21/0300 PROB OF MIST PROB OFHVY SNOW FALL IMPR TOWARDS NIGTH VIS MODERATE OCNL POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 65 - W OF 80W: SW 5/7 GUST WITH 8 INTENSITY PROB OF FOG MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR OCNL VERY POOR

NORTHER BELLINGSHAUSEN SEA N OF 65 - E OF 80W: NW 6/7 WITH GUSTS VEER SE BY 20/1800 PROB OF FOG MIST PROB OFMOD ISOL SNOW FALL VIS POOR OCNL VERY POOR

NORTHER BELLINGSHAUSEN SEA S OF 65 - W OF 80W: E 5/6 VEER 4/3 BY 21/0900 PROB OF FOG MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS POOR OCNL VERY POOR

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 10/8 WITH GUSTS PROB OF FOG MIST PROB OFMOD ISOL SNOW FALL VIS POOR OCNL VERY POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 6/5 PROB OF MIST FOG PATCHES PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER STARTING NIGTH VIS MODERATE OCNL POOR

NORTHERN WEDDELL SEA N OF 63 - W OF 40W: NE 6/7 BY 20/1200 PROB OF FOG MIST PROB OFMOD HVY SNOW FALL IMPR DURING THE NIGTH VIS MODERATE OCNL VERY POOR

NORTHERN WEDDELL SEA N OF 63 - E OF 40W: SECTOR N 5/4 VEER E BY 20/1200 PROB OF MOD HVY SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL VERY POOR

NORTHERN WEDDELL SEA REST OF THE AREA: VRB 3 VIS GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 4/5 VIS GOOD=