WWAA02 SAWB 211200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

12:00 UTC 21, SEPTEMBER 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

1165/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-64S 62W-50W UNTIL 22/0000

1166/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV NE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN 63S-68S 90W-70W FROM 21/1800 UNTIL 21/1200

PART 2 GENERAL SYNOPSIS AT 09:00UTC

RIDGE 60S 45W 64S 43W 68S 43W MOV E WKN

LOW 972HPA 67S 60W MOV E DPN EXTENDS CFNT AT 67S 60W 63S 67W 62S 72W MOV E

201400 UTC 1.SEA ICE LIMIT 5529S 02000W 5408S 02617W 5336S 03217W 5536S 03757W 5710S 04316W 5821S 04813W 5954S 05248W 6232S 05655W 6252S 06033W 6358S 06336W 6017S 06558W 6051S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5732S 04518W 28X25NM D33B 5927S 04527W 21X12NM A76C 5430S 02626W 17X6NM A85 6110S 05345W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5737S 03815W 9X6NM D33C 6136S 05358W 9X5NM ICEBERG1 5654S 04624W 5X3NM ICEBERG2 5910S 05042W 5X3NM ICEBERG3 5759S 04930W 4X3NM ICEBERG4 5820S 04807W 3X1NM ICEBERG5 6102S 05315W 10X3NM 4.ICEBERGS AREA A5600S 02000W 5000S 02000W 5900S 04800W 5300S 04800W 5000S 04000W B5900S 06200W 6500S 06500W 5900S 04800W 5300S 04800W

PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-09-22

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 6/7 GUST WITH 8 INTENSITY BACK SW 6/5 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 7/8 WITH GUSTS BACK SW 7 WITH GUSTS BY 22/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS MODERATE TO VERY POOR

MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 6/7 GUST WITH 8 INTENSITY BACK SW 6/5 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 7/8 WITH GUSTS BACK SW 7 WITH GUSTS BY 22/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NOON VIS MODERATE TO VERY POOR

GERLACHE STRAIT : SECTOR W 4/3 VEER SECTOR N 4 BY 22/0300 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

MARGARITA BAY : NW 5/4 VEER SECTOR N 3/4 BY 21/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD

EREBUS Y TERROR GULF : NW 3/4 BACK SW 5/6 WITH GUSTS BY 21/2100 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL VERY POOR

OCEANIC AREAS:

NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 5/7 WITH GUSTS INCR SECTOR W 8 WITH GUSTS BY 21/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR TO MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 5/6 WITH GUSTS INCR SECTOR W 7/8 WITH GUSTS BY 22/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 5/6 BACK SE 4/3 WITH GUSTS BY 22/0000 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE

NORTHERN WEDDELL SEA N OF 64S: SECTOR W 3/4 VEER SECTOR N 4/5 BY 21/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: NW 4/5 BACK SECTOR W 4/3 BY 21/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL VERY POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 3/4 BACK SECTOR E 5/4 BY 21/2100 PROB OF MIST VIS GOOD TO MODERATE=