WWAA02 SAWB 201200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 20, MARCH 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

365/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV SE DEEPENING PROVOKES WINDS FORCE 8 GUST WITH 9 INTENSITY IN 70S-63S 60W-66W UNTIL 20/2100

366/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW GUST WITH 9 INTENSITY IN 90S-70S 64W-68W UNTIL 21/0300

367/2026 STRONG BARIC GRADIENT GERLACHE STRAIT MARGARITA BAY MOV E WEAKENING WILL PROVOKE WINDS FORCE 8 FROM NE WITH GUST IN 70S-67S 66W-69W UNTIL 20/2200

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 971HPA 68S 78W MOV SE DPN EXTENDS CFNT AT 68S 78W 65S 70W 61S 71W MOV E

TROUGH 62S 49W 64S 51W 66S 51W MOV E WKN

RIDGE 61S 40W 64S 40W 68S 40W MOV E WKN

191400 UTC 1.SEA ICE LIMIT 7154S 02000W 6600S 03005W 6737S 03005W 6144S 03252W 6050S 03918W 6145S 04430W 6205S 04951W 6346S 05402W 6307S 05725W 6354S 06153W 6440S 06432W 6632S 06716W 2.ICEBERGS GREATER THAN 10NM A23K 5037S 03505W 10X7NM A76C 5900S 03619W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4835S 03036W 9X7NM ICEBERG1 5812S 03538W 3X2NM ICEBERG2 4846S 03326W 3X2NM ICEBERG3 5236S 03311W 7X2NM ICEBERG4 4722S 03117W 3X1NM ICEBERG5 4843S 03136W 4X2NM ICEBERG6 4852S 03111W 4X1NM ICEBERG7 4847S 03054W 3X2NM ICEBERG8 4846S 03034W 2X2NM 4.ICEBERGS AREA A 7303S 02000W 4555S 02000W 4400S 03100W 4900S 04000W 6136S 04000W B 6136S 04000W 5800S 04000W 5800S 04900W 6211S 04900W C 6211S 04900W 5900S 04900W 6100S 06100W 6600S 06716W 6644S 06716W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-21

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 7/8 WITH GUSTS BACK SECTOR W 6/5 BY 20/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN IMPR DURING THE NIGTH VIS POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 4/5 INCR NW 6/7 WITH GUSTS BY 21/0000 PROB OF MIST PROB OFISOL DRIZZLE RAIN WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR

MAR DE LA FLOTA COASTS W OF 60W: NW 7/8 WITH GUSTS BACK SECTOR W 6/5 BY 20/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN IMPR DURING THE NIGTH VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: NW 5/7 INCR NW 8 GUST WITH 9 INTENSITY BY 20/2200 AFTERWARDS NW 8 WITH GUSTS BY 21/0000 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN WORSENING DURING THE MORNING VIS MODERATE TO POOR

GERLACHE STRAIT : NE 5/7 WITH GUSTS INCR NE 8 WITH GUSTS BY 20/1500 AFTERWARDS NW 5/4 BY 20/2200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO POOR

MARGARITA BAY : NE 5/7 GUST WITH 8 INTENSITY INCR NE 8 WITH GUSTS BY 20/1500 AFTERWARDS NE 7/6 GUST WITH 8 INTENSITY BY 21/0000 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS MODERATE TO POOR

EREBUS Y TERROR GULF : NW 4/5 INCR NW 6/8 GUST WITH 9 INTENSITY BY 20/1700 PROB OF MIST WORSENING STARTING NOON VIS GOOD TO MODERATE

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 5/6 WITH GUSTS BACK SW 7 GUST WITH 8 INTENSITY BY 20/2100 PROB OF MIST PROB OFSCT SH SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 7/8 WITH GUSTS VEER SECTOR W 7 WITH GUSTS BY 20/1000 AFTERWARDS SECTOR N 8 WITH GUSTS BY 20/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 4/5 VEER SW 5/6 BY 20/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

NORTHERN WEDDELL SEA W OF 40W: NW 5/6 WITH GUSTS INCR NW 7/8 WITH GUSTS BY 20/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE MORNING VIS GOOD TO MODERATE OCNL POOR

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 4/5 WITH GUSTS VEER NW 6/7 BY 20/1800 AFTERWARDS NW 7 GUST WITH 8 INTENSITY BY 21/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS EVENING VIS MODERATE TO GOOD

SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR W 3/4 BACK SW 5/6 BY 20/2100 AFTERWARDS SECTOR E 3/4 BY 21/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL POOR=