WWAA02 SAWB 281200
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 28, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
405/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 9 FROM SECTOR E WITH GUST IN 60S-64S 90W-75W UNTIL 29/0300
406/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN 60S-67S 40W-30W UNTIL 29/0300
407/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV SE DEEPENING WILL PROVOKE WINDS FORCE 9 FROM SECTOR E WITH GUST IN 60S-64S 70W-60W FROM 28/1800 UNTIL 29/0900
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 999HPA 64S 57W MOV E INTSF EXTENDS RIDGE AT 67S 57W 64S 55W 60S 52W MOV E
LOW 966HPA 67S 30W MOV E WKN
LOW 960HPA 60S 90W MOV SE DPN
271400 UTC 1.SEA ICE LIMIT 7052S 02000W 6617S 03023W 6130S 03147W 6244S 03258W 6135S 04305W 6245S 05035W 6257S 05513W 6434S 05528W 6408S 06334W 6525S 06541W 6558S 06643W 6610S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5908S 03637W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5145S 03245W 5X2NM ICEBERG2 4825S 03138W 3X1NM ICEBERG3 4818S 03001W 4X1NM ICEBERG4 4826S 03011W 3X2NM ICEBERG5 4803S 02942W 2X2NM ICEBERG6 4831S 03031W 9X7NM ICEBERG7 5009S 03425W 9X7NM ICEBERG8 4951S 03004W 3X1NM 4.ICEBERGS AREA A 6500S 02000W 4600S 02000W 4600S 03700W 6135S 03700W B 6135S 03700W 4600S 03700W 5700S 05000W 6230S 05000W C 6230S 05000W 5700S 05000W 6500S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-29
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 4/5 INCR NE 7 WITH GUSTS BY 28/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN WORSENING STARTING NOON VIS MODERATE TO POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 3/4 VEER NE 5/7 GUST WITH 8 INTENSITY BY 29/0000 PROB OF MIST PROB OFISOL RAIN WORSENING DURING THE EVENING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: NE 4/5 INCR NE 7 GUST WITH 8 INTENSITY BY 28/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN WORSENING STARTING NOON VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 3/4 VEER NE 5/7 GUST WITH 8 INTENSITY BY 29/0000 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE WORSENING TOWARDS NIGTH VIS MODERATE TO POOR
GERLACHE STRAIT : NE 5/6 VEER SECTOR E 7/8 WITH GUSTS BY 29/0300 PROB OF MIST PROB OFMOD SNOW FALL WORSENING DURING THE NIGTH VIS MODERATE TO POOR
MARGARITA BAY : SECTOR N 4 VEER SECTOR E 5/6 GUST WITH 8 INTENSITY BY 29/0300 PROB OF ISOL SNOW FALL PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE TO POOR
EREBUS Y TERROR GULF : SECTOR E 4 BACK NE 5/7 GUST WITH 8 INTENSITY BY 29/0000 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING STARTING NIGTH VIS MODERATE TO VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64 - W OF 80W: SECTOR E 7/8 GUST WITH 8 INTENSITY INCR SECTOR E 9 WITH GUSTS BY 28/1800 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO VERY POOR
NORTHER BELLINGSHAUSEN SEA N OF 64 - E OF 80W: NE 5/6 VEER SECTOR E 7/8 WITH GUSTS BY 28/1500 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN WORSENING STARTING NOON VIS MODERATE TO VERY POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 3/4 VEER SECTOR E 5/6 BY 28/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 3/4 BACK NE 4/4 BY 28/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA W OF 40W: SW 5/6 VEER SECTOR W 6/7 BY 28/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA (60-68S 20-50W): SW 6/7 WITH GUSTS INCR SECTOR W 7/8 WITH GUSTS BY 28/1800 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER STARTING EVENING VIS POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 7 GUST WITH 8 INTENSITY VEER SECTOR E 5 WITH GUSTS BY 29/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO VERY POOR=