WWAA02 SAWB 181200
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 18, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
685/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-64S 70W-60W UNTIL 18/2100
686/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST BACK SW IN 60S-65S 80W-70W UNTIL 18/1800
687/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SE GUST WITH 9 INTENSITY IN 65S-70S 50W-30W UNTIL 19/0900
688/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR S WITH GUST IN 60S-66S 60W-50W FROM 18/0900 UNTIL 19/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 963HPA 60S 61W MOV E DPN
LOW 947HPA 64S 35W MOV E DPN
RIDGE 60S 85W 65S 85W 68S 86W MOV E INTSF
171400 UTC 1.SEA ICE LIMIT 6517S 02000W 6402S 02618W 5933S 03217W 6039S 03758W 6017S 04317W 6105S 04814W 6131S 05247W 6316S 05655W 6342S 06032W 6412S 06337W 6529S 06558W 6640S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5828S 03338W 16X7NM 3.ICEBERGS SMALLER THAN ICEBERG1 4937S 02654W 5X1NM ICEBERG2 4540S 02626W 4X2NM 4.ICEBERGS AREA A6545S 02000W 4200S 02000W 4200S 03700W 6100S 03700W B6100S 03700W 5000S 03700W 5900S 05000W 6120S 05000W C6120S 05000W 5900S 05000W 6300S 06716W 6657S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-19
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR S 7/8 WITH GUSTS VEER SW 8 WITH GUSTS BY 18/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SE 5/6 GUST WITH 8 INTENSITY VEER SECTOR S 9 WITH GUSTS BY 18/1800 PROB OF MIST PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE NOON VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SECTOR S 7/8 WITH GUSTS VEER SW 8 WITH GUSTS BY 18/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 7/8 WITH GUSTS VEER SW 9 WITH GUSTS BY 18/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SECTOR E 4/3 BACK NE 4/3 BY 18/2100 VIS GOOD
MARGARITA BAY : NE 3/4 VEER SECTOR E 4 BY 19/0000 VIS GOOD
EREBUS Y TERROR GULF : SW 7/8 WITH GUSTS INCR SW 9 WITH GUSTS BY 18/2100 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA E OF 80 - N OF 64S: SW 9 WITH GUSTS DECR SW 9 WITH GUSTS BY 18/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5/6 WITH GUSTS VEER SECTOR W 5/6 WITH GUSTS BY 18/1800 AFTERWARDS NW 5/6 BY 19/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NIGTH VIS GOOD TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 4/5 VEER NW 4/3 BY 19/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SW 6/5 WITH GUSTS INCR SECTOR W 5/7 GUST WITH 8 INTENSITY BY 18/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SE 7/8 WITH GUSTS INCR SE 9 WITH GUSTS BY 18/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 VEER SECTOR S 4/5 BY 19/0000 PROB OF MIST PROB OFMOD SNOW FALL IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD=