WWAA02 SAWB 180000

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

00:00 UTC 18, JULY 2026.

NATIONAL WEATHER SERVICE (NWS)

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

PART 1 GALE WARNING:

979/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 61S-64S 64W-50W UNTIL 18/2100

980/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 61S-65S 50W-30W UNTIL 18/2100

PART 2 GENERAL SYNOPSIS AT 21:00UTC

LOW 978HPA 65S 58W MOV E WKN

LOW 984HPA 65S 77W MOV E WKN

LOW 981HPA 66S 40W MOV E WKN

RIDGE 60S 42W 63S 47W 65S 48W MOV E WKN

171400 UTC 1.SEA ICE LIMIT 5753S 02000W 5712S 02618W 5848S 03217W 5925S 03757W 5954S 04317W 6044S 04814W 6151S 05247W 6234S 05655W 6342S 06032W 6413S 06337W 6532S 06559W 6616S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6147S 05210W 21X12NM A81 6112S 05327W 28X25NM A76C 5219S 03139W 16X6NM D33C 6315S 05259W 9X4NM A83 6238S 05051W 12X7NM D35 6154S 04434W 28X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6210S 05251W 6X3NM ICEBERG2 6310S 05233W 5X2NM ICEBERG3 6253S 05303W 4X3NM ICEBERG4 6229S 05252W 2X1NM ICEBERG5 5957S 03541W 4X2NM 4.ICEBERGS AREA A6000S 02000W 4300S 02000W 5300S 03900W 6011S 03900W B6011S 03900W 5500S 03900W 5900S 05000W 6245S 05000W C6245S 05000W 5900S 05000W 6400S 06716W 6700S 06716W

PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-19

COASTAL AREAS:

SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 6/5 WITH GUSTS BY 18/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7/8 WITH GUSTS BACK SECTOR W 7 GUST WITH 8 INTENSITY BY 18/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR

MAR DE LA FLOTA COASTS W OF 60W: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 6/5 WITH GUSTS BY 18/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE

MAR DE LA FLOTA COASTS REST OF THE AREA: NW 7/8 WITH GUSTS BACK SECTOR W 7 GUST WITH 8 INTENSITY BY 18/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR

GERLACHE STRAIT : SE 4/3 BACK SECTOR S 3 BY 18/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE

MARGARITA BAY : NW 3/4 VEER SECTOR N 4/3 BY 18/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD

EREBUS Y TERROR GULF : NW 6/5 BACK SECTOR S 3/4 BY 18/1200 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: NW 5/6 WITH GUSTS BACK SW 5/6 BY 18/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS EVENING VIS POOR TO MODERATE

NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 4/5 BACK SECTOR S 4 BY 18/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD

SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 4/5 BACK SECTOR S 4/3 BY 18/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS MORNING VIS MODERATE TO GOOD

NORTHERN WEDDELL SEA N OF 65S: NW 7/8 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 18/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD

NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 3/4 VEER NE 4/3 WITH GUSTS BY 18/0900 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR

SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 VEER SECTOR S 4/3 BY 18/0900 PROB OF MIST VIS MODERATE TO GOOD=