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WWAA02 SAWB 200000

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

00:00 UTC 20, MARCH 2025.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

276/2025 LOW 974HPA AT 65S 74W MOV SE WEAKENING PROVOKES WINDS FORCE 8 AROUND ITSELF GUST WITH 9 INTENSITY IN 60S-69S 70W-79W UNTIL 21/0300

277/2025 RIDGE 975HPA AT 65S 57W MOV SE DEEPENING PROVOKES WINDS FORCE 9 AROUND ITSELF GUST WITH 10 INTENSITY IN 60S-69S 70W-79W UNTIL 21/0300

278/2025 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV SE DEEPENING PROVOKES WINDS FORCE 9 GUST WITH 10 INTENSITY BACK SECTOR W IN 60S-64S 50W-70W UNTIL 21/0000

PART 2 GENERAL SYNOPSIS AT 21:00UTC

LOW 947HPA 65S 74W MOV SE WKN

LOW 957HPA 65S 57W MOV SE DPN EXTENDS CFNT AT 65S 57W 67S 45W 60S 46W

191400 UTC 1.SEA ICE LIMIT 7218S 02000W 7048S 03053W 6713S 03249W 6543S 04053W 6452S 04910W 6218S 04818W 6055S 05122W 6203S 05430W 6304S 05723W 6342S 06101W 6447S 06442W 6609S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5446S 03903W 40X32NM A23B 5636S 03817W 10X3NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6140S 05523W 9X3NM ICEBERG2 5526S 03543W 2X1NM ICEBERG3 6217S 04830W 8X3NM ICEBERG4 6239S 04320W 3X1NM ICEBERG5 6136S 05454W 2X1NM ICEBERG6 5642S 03801W 7X1NM ICEBERG7 5536S 03606W 2X1NM ICEBERG8 6304S 04426W 2X1NM ICEBERG9 5631S 03816W 3X1NM ICEBERG10 5506S 03828W 3X1NM ICEBERG11 5536S 03600W 2X1NM 4.ICEBERGS AREA A: 7254S 02000W 4300S 02000W 4300S 03500W 6610S 03500W B: 6610S 03500W 5000S 03500W 5000S 04200W 6606S 04200W C: 6606S 04200W 5700S 04200W 5000S 05700W 6235S 04000W D: 6235S 04000W 6000S 05000W 6000S 06716W 6643S 06716W

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-03-21

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 8 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 20/0600 DECR SECTOR W 7/5 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING EARLY MORNING VIS POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 9 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 20/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING EVENING VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS W OF 60W: NW 8 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 20/0600 DECR SECTOR W 7/5 WITH GUSTS BY 20/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING EVENING VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: NW 9 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 20/1200 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE

GERLACHE STRAIT : NE 4/5 WITH GUSTS BACK NW 5/6 BY 20/1500 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR OCNL MODERATE

MARGARITA BAY : SECTOR E 7 GUST WITH 8 INTENSITY DECR NE 5 WITH GUSTS BY 20/0900 DECR NE 3 BY 20/1200 PROB OF ISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD

EREBUS Y TERROR GULF : SECTOR N 5/4 BACK SW 7 GUST WITH 8 INTENSITY BY 20/0600 AFTERWARDS 5/4 BY 20/1200 PROB OF FOG MIST IMPR DURING THE EARLY MORNING PROB OFINTERMITTENT SNOW FALL COASTAL BLIZZARD VIS VERY POOR TO MODERATE OCNL GOOD

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA W OF 80W: SW 7/5 WITH GUSTS VEER SECTOR W 5 BY 20/1200 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 8 GUST WITH 9 INTENSITY VEER SECTOR W 8 WITH GUSTS BY 20/1500 DECR SECTOR S 7/5 BY 20/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 5/6 VEER SW 5 BY 20/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA N OF 64 - W OF 40W: SECTOR N 10 WITH GUSTS BACK SECTOR N 8 GUST WITH 9 INTENSITY BY 20/0900 PROB OF FOG MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

NORTHERN WEDDELL SEA N OF 64 - E OF 40W: NW 7/9 WITH GUSTS INCR NW 10 WITH GUSTS BY 20/0600 PROB OF FOG MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS MODERATE TO VERY POOR

NORTHERN WEDDELL SEA REST OF THE AREA: NE 6 GUST WITH 8 INTENSITY BACK SECTOR N 9 WITH GUSTS BY 20/0900 PROB OF FOG MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE

SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 5/6 GUST WITH 8 INTENSITY VEER SECTOR E 6/5 WITH GUSTS BY 20/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE OCNL GOOD=