WWAA02 SAWB 281200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 28, AUGUST 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

952/2025 STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR N VEER W WITH GUST IN 60S-70S 60W-75W UNTIL 28/2100

953/2025 STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 9 FROM W WITH GUST IN 60S-63S 45W-60W UNTIL 29/1500

PART 2 GENERAL SYNOPSIS AT 09:00UTC

HIGH 1002HPA 68S 48W MOV NE EXTENDS RIDGE AT 68S 48W 60S 45W MOV NE

LOW 974HPA 67S 75W MOV SE EXTENDS CFNT AT 67S 75W 60S 68W

271400 UTC 1.SEA ICE LIMIT 5611S 02000W 5536S 02418W 5522S 03131W 5650S 03606W 5731S 03952W 5752S 04425W 5917S 04850W 6035S 05236W 6114S 05739W 6219S 06115W 6349S 06435W 6521S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5319S 03644W 40X32NM A74A 5649S 04354W 27X17NM A77 6018S 05546W 27X4NM A76C 5942S 04803W 16X7NM B15AB 6120S 05252W 11X4NM ICEBERG1 5247S 04108W 12X2NM 3.ICEBERGS SMALLER THAN 10NM A23D 5108S 03628W 8X4NM A23E 5148S 03335W 9X4NM A23F 5304S 03627W 9X4NM ICEBERG2 5341S 03603W 3X1NM ICEBERG3 5112S 02944W 3X3NM ICEBERG4 6013S 05208W 9X2NM ICEBERG5 5511S 03823W 4X2NM ICEBERG6 5155S 03802W 2X2NM ICEBERG7 4826S 02521W 3X2NM ICEBERG8 5246S 03222W 3X1NM ICEBERG9 5206S 03614W 3X1NM ICEBERG10 4702S 02602W 2X1NM ICEBERG11 5246S 03640W 4X1NM ICEBERG12 5318S 03559W 3X1NM ICEBERG13 6019S 05419W 6X4NM ICEBERG14 5205S 03432W 2X1NM ICEBERG15 5246S 03745W 3X2NM ICEBERG16 5255S 03629W 3X3NM ICEBERG17 6032S 05514W 2X1NM ICEBERG18 5225S 03434W 3X1NM ICEBERG19 5825S 04541W 3X1NM ICEBERG20 5330S 03623W 3X1NM 4.ICEBERGS AREA A: 5700S 02000W 4500S 02000W 4500S 03520W 5810S 03440W B: 5810S 03440W 4900S 03717W 5300S 04731W 6000S 04520W C: 6000S 04520W 5600S 04700W 6050S 06716W 6620S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-08-29

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: W 7 GUST WITH 8 INTENSITY DECR W 5/6 BY 29/0000 AFTERWARDS NW 7 WITH GUSTS BY 29/0600 PROB OF FOG MIST WORSENING DURING THE EARLY MORNING PROB OF SNOW FALL IMPR DURING THE NIGTH VIS MODERATE TO POOR OCNL VERY POOR

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 5/4 VEER NW 8 WITH GUSTS BY 28/1500 BACK W BY 28/2100 PROB OF FOG MIST WORSENING DURING THE NIGTH PROB OF SNOW FALL DURING THE EVENING VIS MODERATE TO POOR OCNL POOR

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5/4 VEER NW 8 WITH GUSTS BY 28/1500 BACK W BY 28/2100 PROB OF FOG MIST WORSENING TOWARDS THE END OF THE PERIOD PROB OF SNOW FALL DURING THE EVENING VIS MODERATE TO POOR OCNL VERY POOR

GERLACHE STRAIT : NE 8/7 WITH GUSTS BACK W 5 BY 28/1500 PROB OF FOG MIST STARTING EVENING PROB OF SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO POOR OCNL VERY POOR

MARGARITA BAY : NE 5 WITH GUSTS INCR NE 8 WITH GUSTS BY 28/1200 VEER SE BY 29/0000 PROB OF FOG MIST PROB OF SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR

EREBUS Y TERROR GULF : VRB 0/3 BACK SW 5/4 BY 29/0300 PROB OF FOG MIST IMPR DURING THE EARLY MORNING PROB OFISOL SNOW FALL STARTING NIGTH VIS VERY POOR TO MODERATE

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80 - N OF 65S: W 7/6 WITH GUSTS VEER NW 5/6 BY 28/1800 PROB OF ISOL RAIN SNOW FALL PROB OF FOG MIST STARTING EVENING VIS MODERATE TO POOR OCNL VERY POOR

NORTHER BELLINGSHAUSEN SEA E OF 80 - N OF 65S: W 7/6 WITH GUSTS VEER NW 5/6 BY 29/0300 PROB OF FOG MIST STARTING NIGTH PROB OFISOL RAIN SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR OCNL VERY POOR

NORTHER BELLINGSHAUSEN SEA W OF 80 - S OF 65S: W 5 PROB OF FOG MIST SPELLS OF GOOD WEATHER VIS VERY POOR TO POOR OCNL MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: W 7/8 WITH GUSTS DECR 6/5 BY 29/0600 PROB OF FOG MIST SPELLS OF GOOD WEATHER PROB OFMOD SNOW FALL STARTING NIGTH VIS VERY POOR TO POOR OCNL MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): E 9 WITH GUSTS DECR E 5/4 BY 28/1500 BACK SECTOR N 3/4 BY 28/2100 PROB OF MIST FOG PATCHES PROB OFMOD INTERMITTENT SNOW FALL IMPR DURING THE EARLY MORNING VIS VERY POOR TO POOR

NORTHERN WEDDELL SEA W OF 35 - N OF 63S: VRB 3/4 VEER W 4/5 BY 28/1800 INCR W 7/8 WITH GUSTS BY 29/0000 PROB OF FOG MIST PROB OFISOL SNOW FALL WORSENING DURING THE NIGTH VIS VERY POOR TO POOR

NORTHERN WEDDELL SEA W OF 35 - S OF 63S: VRB 3/4 VIS GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: SW 4/5 VIS GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 4/3 VIS GOOD=