1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-25, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 125: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 WITH GUST IN
GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS
MALVINAS COASTS FROM 25/0300
WARNING 121: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR N WITH
GUST BETWEEN 45S-60S AND 40W-60W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
241400 UTC 1.SEA ICE LIMIT 7127S 02000W 6707S 03002W 6121S 03242W 6107S 03816W
6123S 04347W 6212S 05011W 6347S 05346W 6309S 05529W 6354S 05659W 6341S 06040W
6504S 06406W 6621S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5856S 03633W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5809S 03520W 3X2NM ICEBERG2 5202S 03247W
7X2NM ICEBERG3 4755S 03106W 3X1NM ICEBERG4 4847S 03022W 4X2NM ICEBERG5 4826S
03008W 4X1NM ICEBERG6 4831S 03011W 3X2NM ICEBERG7 4826S 02955W 2X2NM ICEBERG8
4527S 03134W 3X2NM ICEBERG9 4832S 03037W 9X7NM ICEBERG10 5013S 03402W 9X7NM
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
LOW 951HPA 61S 59W MOV E EXTENDS CFNT AT 61S 56W 50S 50W 40S 60W 38S 67W MOV
NE
LOW 999HPA 42S 43W WKN EXP 44S 26W BY 25/2100
HIGH 1014HPA 34S 54W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-03-26
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 VEER VRB BY 25/0900 MIST STARTING EARLY
MORNING VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR N 3 VEER VRB BY 25/0900 MIST STARTING EARLY
MORNING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 3 VEER VRB 3 BY 25/1500 MIST STARTING EARLY
MORNING VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 4/3 BACK SECTOR S 4/5 BY 25/0900
DECR VRB 3 BY 25/1800 LOW PROB OF SH DURING THE MORNING IMPR VIS GOOD OCNL
MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 5 WITH GUSTS DECR SECTOR W
3/4 BY 25/0900 PROB OF RAIN DURING THE EARLY MORNING IMPR DURING THE MORNING VIS
MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5/6 WITH GUSTS PROB OF SH RAIN
DURING THE EARLY MORNING IMPR VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): NW 7/8 WITH GUSTS DECR 6/5 WITH GUSTS BY
25/2100 PROB OF SH VIS POOR TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): NW 8 WITH GUSTS BACK SECTOR W 8/9 WITH
GUSTS BY 25/1500 PROB OF SH RAIN VIS VERY POOR TO POOR
FIN DEL MUNDO COASTS(54S - 55S): NW 8 WITH GUSTS BACK SECTOR W 8/7 WITH GUSTS
BY 25/1500 PROB OF RAIN PROB OF SH RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
ISLAS MALVINAS COASTS: NW 8 WITH GUSTS BACK SECTOR W 8/6 WITH GUSTS BY 25/1800
PROB OF SH RAIN VIS VERY POOR TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR N 5/4 WITH GUSTS BACK SECTOR
W 4/5 BY 25/2100 PROB OF SH VIS MODERATE TO GOOD
E OF 45W: NW 6/5 WITH GUSTS BACK SECTOR W 5/4 BY 25/0900 DECR PROB OF SH IMPR
TOWARDS MORNING VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR W 4/3 VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR N 4/5 WITH
GUSTS BACK W 4 BY 25/2100 DECR PROB OF RAIN PROB OFISOL STORMS VIS MODERATE OCNL
POOR
W OF 30 - N OF 45S: SECTOR N 5/6 WITH GUSTS BACK SECTOR S 5 BY 25/1200 PROB OF
HVY RAIN IMPR DURING THE MORNING VIS MODERATE TO POOR
E OF 30 - S OF 45S: VRB 4 PROB OF ISOL RAIN VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR E 4/5 WITH GUSTS VEER VRB 4 BY 25/1500 PROB OF ISOL
RAIN IMPR DURING THE MORNING VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR S 5 WITH
GUSTS DECR VRB 4 BY 25/1500 PROB OF ISOL RAIN VIS MODERATE
W OF 50 - N OF 45S: SECTOR W 4/5 INCR 4/6 WITH GUSTS BY 25/1500 PROB OF SH VIS
MODERATE TO GOOD
E OF 50 - S OF 45S: SECTOR N 7/6 WITH GUSTS BACK SECTOR W 5 WITH GUSTS BY
25/0600 VEER NW 7/8 WITH GUSTS BY 25/1800 PROB OF SH VIS MODERATE TO POOR
REST OF THE AREA: NW 6/7 WITH GUSTS INCR 7/8 WITH GUSTS BY 25/0900 PROB OF SH
VIS POOR TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR S 5/4 WITH GUSTS VEER
SECTOR N 5 WITH GUSTS BY 25/1200 INCR 5/6 WITH GUSTS BY 25/1800 PROB OF RAIN
STARTING EVENING VIS MODERATE
W OF 30 - N OF 55S: SECTOR N 6/7 WITH GUSTS PROB OF RAIN VIS MODERATE OCNL
POOR
REST OF THE AREA: SECTOR N 7/8 WITH GUSTS DECR 6 WITH GUSTS BY 25/1500 PROB OF
RAIN IMPR DURING THE EVENING VIS POOR TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR N 8 WITH GUSTS BACK NW
7/8 WITH GUSTS BY 25/0900 VEER SECTOR N 8 WITH GUSTS BY 25/1800 PROB OF SH RAIN
VIS VERY POOR TO POOR
REST OF THE AREA: NW 8/7 WITH GUSTS INCR 8 GUST WITH 9 INTENSITY BY 25/1200
PROB OF SH RAIN NEXT SH RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7/6 WITH GUSTS INCR 7 GUST WITH 8
INTENSITY BY 25/2100 PROB OF SH RAIN NEXT SH RAIN AND SNOW MIXTURE VIS MODERATE
TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 25, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
391/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR N GUST WITH 9 INTENSITY BACK NW IN 60S-63S 58W-50W UNTIL 25/1200
392/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW GUST WITH 9 INTENSITY IN 63S-66S 58W-52W UNTIL 26/0000
393/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV N DEEPENING PROVOKES WINDS FORCE 8 FROM SW GUST WITH 9 INTENSITY IN 63S-68S 81W-72W UNTIL 25/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 947HPA 62S 59W MOV E DPN EXTENDS CFNT AT 62S 59W 65S 55W 62S 47W MOV E
LOW 957HPA 68S 75W MOV E WKN
LOW 960HPA 60S 75W MOV E WKN
241400 UTC 1.SEA ICE LIMIT 7127S 02000W 6707S 03002W 6121S 03242W 6107S 03816W 6123S 04347W 6212S 05011W 6347S 05346W 6309S 05529W 6354S 05659W 6341S 06040W 6504S 06406W 6621S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5856S 03633W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5809S 03520W 3X2NM ICEBERG2 5202S 03247W 7X2NM ICEBERG3 4755S 03106W 3X1NM ICEBERG4 4847S 03022W 4X2NM ICEBERG5 4826S 03008W 4X1NM ICEBERG6 4831S 03011W 3X2NM ICEBERG7 4826S 02955W 2X2NM ICEBERG8 4527S 03134W 3X2NM ICEBERG9 4832S 03037W 9X7NM ICEBERG10 5013S 03402W 9X7NM 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-03-26
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 5/6 WITH GUSTS VEER SECTOR W 6/7 BY 25/0600 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO VERY POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 9 WITH GUSTS VEER NW 9 WITH GUSTS BY 25/0600 AFTERWARDS NW 5 BY 25/1500 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO VERY POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR E 5/6 WITH GUSTS VEER SECTOR S 6/5 BY 25/0900 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO VERY POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: NE 8 WITH GUSTS BACK NW 10 WITH GUSTS BY 25/0900 AFTERWARDS NW 5 BY 25/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
GERLACHE STRAIT : SECTOR E 7/8 WITH GUSTS DECR NE 4 WITH GUSTS BY 25/0900 PROB OF MIST IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR E 8 GUST WITH 9 INTENSITY DECR SECTOR E 5/4 BY 25/1200 PROB OF MIST IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 9 WITH GUSTS DECR SW 7 GUST WITH 8 INTENSITY BY 25/1700 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFINTERMITTENT SNOW FALL IMPR STARTING EARLY MORNING VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: SW 7/8 WITH GUSTS DECR SW 6/5 BY 25/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE EVENING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR S 5/6 VEER SW 6 BY 25/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 5/6 VEER SW 4 BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS MODERATE TO POOR
NORTHERN WEDDELL SEA W OF 40W: NE 9 WITH GUSTS BACK NW 8 WITH GUSTS BY 25/0600 AFTERWARDS NW 8 BY 25/0600 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT SNOW FALL IMPR STARTING EVENING VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: NE 5/6 INCR NE 9 WITH GUSTS BY 25/2300 AFTERWARDS NW 8 BY 25/1500 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 4/5 BACK NE 5/7 WITH GUSTS BY 25/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE=