1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-1, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 21:00UTC
281400 UTC 1.SEA ICE LIMIT 7248S 02000W 7208S 02801W 6802S 03036W 6109S 03153W
7447S 03246W 7605S 03429W 7246S 03550W 6115S 03936W 6100S 04748W 6255S 05618W
6411S 06321W 6628S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 4711S 03150W 10X11NM
A23K 5124S 03636W 11X8NM A76C 5927S 03757W 16X7NM B15AB 5337S 03358W 10X4NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5007S 02316W 3X1NM ICEBERG2 5805S 03545W
5X2NM ICEBERG3 5153S 04021W 2X1NM ICEBERG4 5911S 04938W 5X4NM ICEBERG5 5135S
03742W 2X1NM ICEBERG6 5102S 04005W 4X2NM ICEBERG7 5109S 04003W 3X1NM ICEBERG8
5804S 03549W 3X1NM ICEBERG9 4805S 03242W 3X2NM 4.ICEBERGS AREA A 6500S 02000W
4300S 02000W 4227S 02635W 4845S 03610W 6150S 03627W B 6150S 03627W 4900S 03610W
5100S 04400W 6155S 04800W C 6155S 04800W 5645S 04530W 6225S 06716W 6630S
06716W
LOW 987HPA 57S 60W MOV SE DPN EXTENDS CFNT AT 55S 60W 47S 57W 40S 60W MOV E
HIGH 1017HPA 38S 48W MOV E NC EXP 43S 40W BY 01/2100
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-3-2
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 4 VIS GOOD
OUTER RIO DE LA PLATA: NE 5 VIS GOOD
URUGUAY SOUTH EAST COASTS: NE 5/4 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 6/5 WITH GUSTS VIS MODERATE TO
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 6/5 WITH GUSTS VIS MODERATE
TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/4 WITH GUSTS PROB OF ISOL
STORMS STARTING EVENING VIS MODERATE OCNL GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/4 WITH GUSTS UNSTABLE VIS
GOOD
SOUTH PATAGONIA COASTS(48S - 54S): VRB 4 PROB OF RAIN SPELLS OF GOOD WEATHER
VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): VRB 4 PROB OF RAIN IMPR STARTING EVENING VIS
MODERATE TO GOOD
ISLAS MALVINAS COASTS: VRB 4 PROB OF SH VIS MODERATE OCNL GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR N 4/6 WITH GUSTS PROB OF
RAIN NEXT HVY STORMS VIS MODERATE TO POOR
W OF 35 - E OF 45W: SECTOR S 6 WITH GUSTS PROB OF SH IMPR STARTING EVENING VIS
MODERATE OCNL POOR
REST OF THE AREA: SECTOR N 5 VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SE 5/6 WITH GUSTS PROB OF
ISOL RAIN VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 5/4 VIS GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR N 6/5 WITH GUSTS PROB OF SH
IMPR STARTING EARLY MORNING VIS MODERATE OCNL POOR TO GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 6/7 WITH GUSTS PROB OF SH
IMPR STARTING EARLY MORNING VIS POOR
REST OF THE AREA: SW 6/5 WITH GUSTS VEER SECTOR N 6 WITH GUSTS BY 1/1200 PROB
OF SH STARTING EARLY MORNING VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR N 5/6 WITH GUSTS BACK
SECTOR W 5 BY 1/1500 PROB OF SH IMPR STARTING EVENING VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR N 5 BACK SECTOR W 6 WITH GUSTS BY 1/0600 PROB OF RAIN
VIS MODERATE TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5/6 UNSTABLE VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 01, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
253/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF NORTHERN WEDDELL SEA MOV S DEEPENING WILL PROVOKE WINDS FORCE 8 FROM NE WITH GUST IN 63S-70S 55W-40W FROM 01/0900 UNTIL 01/2300
254/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS NORTHERN WEDDELL SEA MOV SE WEAKENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-63S 55W-40W FROM 01/1800 UNTIL 01/2300
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 970HPA 70S 90W MOV NE DPN
LOW 976HPA 66S 81W MOV E DPN EXTENDS CFNT AT 65S 77W 64S 73W 61S 71W
RIDGE 61S 49W 63S 51W 65S 53W
281400 UTC 1.SEA ICE LIMIT 7248S 02000W 7208S 02801W 6802S 03036W 6109S 03153W 7447S 03246W 7605S 03429W 7246S 03550W 6115S 03936W 6100S 04748W 6255S 05618W 6411S 06321W 6628S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 4711S 03150W 10X11NM A23K 5124S 03636W 11X8NM A76C 5927S 03757W 16X7NM B15AB 5337S 03358W 10X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5007S 02316W 3X1NM ICEBERG2 5805S 03545W 5X2NM ICEBERG3 5153S 04021W 2X1NM ICEBERG4 5911S 04938W 5X4NM ICEBERG5 5135S 03742W 2X1NM ICEBERG6 5102S 04005W 4X2NM ICEBERG7 5109S 04003W 3X1NM ICEBERG8 5804S 03549W 3X1NM ICEBERG9 4805S 03242W 3X2NM 4.ICEBERGS AREA A 6500S 02000W 4300S 02000W 4227S 02635W 4845S 03610W 6150S 03627W B 6150S 03627W 4900S 03610W 5100S 04400W 6155S 04800W C 6155S 04800W 5645S 04530W 6225S 06716W 6630S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-3-2
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 3/4 INCR NW 5 BY 1/1500 AFTERWARDS SECTOR W 5 BY 1/2100 PROB OF MIST PROB OFINTERMITTENT RAIN IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NE 5 BACK SECTOR N 5 BY 1/0900 AFTERWARDS SECTOR W 8 WITH GUSTS BY 1/1800 PROB OF FOG AND MIST IN PATCHES PROB OFMOD RAIN IMPR GRADUALLY STARTING NOON VIS POOR TO MODERATE OCNL VERY POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3 INCR SECTOR W 4 BY 1/1200 AFTERWARDS SECTOR W 5 BY 1/1800 PROB OF MIST PROB OFISOL RAIN IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 4/3 INCR NE 5 BY 28/2100 AFTERWARDS NE 8 WITH GUSTS BY 1/0600 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING THE MIDDLE OF THE PERIOD VIS VERY POOR TO POOR
GERLACHE STRAIT : SECTOR N 3 BACK NW 4 BY 1/1800 AFTERWARDS NW 4 BY 1/2100 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR N 3 BACK NW 4 BY 1/1800 PROB OF MIST PROB OFCOASTAL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS MODERATE TO POOR
EREBUS Y TERROR GULF E OF 55W: NE 4/5 INCR NE 5/6 WITH GUSTS BY 1/1200 AFTERWARDS SECTOR E 4 BY 1/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL WORSENING STARTING EARLY MORNING VIS VERY POOR TO POOR OCNL MODERATE
EREBUS Y TERROR GULF REST OF THE AREA: NE 3 INCR SECTOR E 8 WITH GUSTS BY 1/1200 AFTERWARDS SE 7 BY 1/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS VERY POOR TO POOR OCNL MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: NW 4 BACK SECTOR W 5 BY 1/1200 AFTERWARDS NW 5 BY 1/2100 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 5/6 WITH GUSTS BACK SECTOR N 4 BY 1/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 5/6 WITH GUSTS DECR NE 5 BY 1/1500 AFTERWARDS SECTOR N 4 BY 1/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE
NORTHERN WEDDELL SEA E OF 40 - N OF 65S: NE 4 INCR NW 8 WITH GUSTS BY 1/1800 PROB OF FOG PROB OFMOD RAIN IMPR GRADUALLY TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
NORTHERN WEDDELL SEA W OF 40 - N OF 65S: SECTOR W 5 DECR 3 BY 1/1200 AFTERWARDS NE 4 BY 1/1800 PROB OF MIST PROB OFINTERMITTENT RAIN STARTING NOON VIS MODERATE TO POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 BACK SECTOR E 4 BY 1/1500 AFTERWARDS 5 BY 1/2100 PROB OF ISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 6/10 WITH GUSTS DECR SW 4 BY 1/1500 AFTERWARDS VRB 3 BY 1/2100 VIS GOOD=