WWAA02 SAWB 231200
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 23, AUGUST 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1101/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 68S-73S 90W-70W UNTIL 23/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 1004HPA 65S 56W MOV E DPN
HIGH 1019HPA 62S 48W MOV NE INTSF EXTENDS RIDGE AT 62S 48W 64S 39W 65S 30W MOV E
HIGH 1023HPA 61S 75W MOV E WKN EXTENDS RIDGE AT 61S 75W 64S 72W 67S 68W MOV E
231400 UTC 1.SEA ICE LIMIT 5547S 02000W 5416S 02618W 5352S 03217W 5617S 03757W 5825S 04316W 5953S 04814W 6047S 05247W 6215S 05654W 6338S 06032W 6135S 06337W 6213S 06558W 6233S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6016S 05008W 21X12NM A81 5841S 05051W 28X25NM A76C 5322S 03005W 16X6NM 3.ICEBERGS SMALLER THAN 10NM D33C 6158S 05358W 9X5NM ICEBERG1 5935S 05020W 5X3NM ICEBERG2 6105S 05418W 5X3NM ICEBERG3 6123S 05404W 6X4NM ICEBERG4 6112S 05418W 2X1NM ICEBERG5 6108S 05414W 3X1NM 4.ICEBERGS AREA A5600S 02000W 4500S 02000W 5200S 04500W 6000S 04500W B5300S 04500W 6600S 04500W 6200S 06716W 6600S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-08-24
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 4/5 VEER SECTOR W 5/4 BY 23/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SE 3/4 BACK NW 4/5 BY 23/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SW 4/5 VEER SECTOR W 5/4 BY 23/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SE 3/4 BACK NW 4/4 BY 23/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO POOR
GERLACHE STRAIT : SW 3/4 BACK SE 4/3 BY 23/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE OCNL VERY POOR
MARGARITA BAY : SECTOR N 3/4 BACK NW 4/5 BY 23/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE OCNL VERY POOR
EREBUS Y TERROR GULF : NW 3/4 BACK SW 4 BY 23/1800 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 3/4 VEER SECTOR N 4/3 BY 23/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NOON VIS GOOD TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 4/5 INCR NW 6 WITH GUSTS BY 23/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NW 7/8 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 23/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64S: SECTOR S 3/4 VEER NW 4/3 BY 23/1800 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 5 VEER NW 6 BY 24/0000 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 BACK NE 5/7 WITH GUSTS BY 23/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE=