1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 03, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
270/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN PORTION OF DRAKE STRAIT MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 60S-62S 80W-60W UNTIL 04/1800
271/2026 STRONG BARIC GRADIENT GERLACHE STRAIT MARGARITA BAY WILL PROVOKE WINDS FORCE 8 FROM NE WITH GUST IN 60S-70S 70W-65W
272/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E WEAKENING WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN 65S-70S 50W-30W FROM 03/1800 UNTIL 04/1200
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 983HPA 68S 82W MOV E DPN
RIDGE 60S 56W 62S 55W 64S 55W MOV E WKN
LOW 974HPA 67S 37W MOV E WKN
021400 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 4806S 03228W 10X11NM A23K 5116S 03604W 11X8NM A76C 5924S 03736W 16X7NM B15AB 5334S 03350W 10X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4957S 02315W 3X1NM ICEBERG2 5803S 03547W 5X2NM ICEBERG3 5149S 04035W 2X1NM ICEBERG4 5902S 04925W 5X4NM ICEBERG5 5023S 03924W 4X2NM ICEBERG6 5800S 03551W 3X1NM ICEBERG7 4828S 03333W 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 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-4
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 5 INCR NE 8 WITH GUSTS BY 03/2100 PROB OF MIST PROB OFMOD RAIN WORSENING STARTING THE MIDDLE OF THE PERIOD VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 3 INCR NE 5 BY 4/0600 AFTERWARDS NE 6 WITH GUSTS BY 4/1200 PROB OF MIST DURING THE MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: NE 4 INCR NE 5/6 WITH GUSTS BY 03/2100 AFTERWARDS NE 7 WITH GUSTS BY 03/1200 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 3 VEER NE 3 BY 4/0000 AFTERWARDS NE 5 BY 4/0900 VIS GOOD
GERLACHE STRAIT : NE 3 INCR 5/6 WITH GUSTS BY 03/2100 AFTERWARDS NE 8 WITH GUSTS BY 4/0600 PROB OF MIST PROB OFMOD SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE TO POOR
MARGARITA BAY : NE 5/6 WITH GUSTS INCR SECTOR N 7 WITH GUSTS BY 4/0000 AFTERWARDS NE 8 WITH GUSTS BY 4/0900 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
EREBUS Y TERROR GULF : SW 4/5 DECR SECTOR S 3 BY 03/2100 AFTERWARDS SECTOR N 5 BY 4/0900 PROB OF MIST WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA E OF 80 - N OF 65S: SECTOR S 5 VEER SECTOR W 4 BY 4/0000 AFTERWARDS SECTOR W 6 WITH GUSTS BY 4/1200 PROB OF INTERMITTENT RAIN WORSENING STARTING EVENING VIS GOOD TO MODERATE
NORTHER BELLINGSHAUSEN SEA E OF 80 - S OF 65S: SECTOR W 3 INCR SECTOR N 4/5 BY 03/2100 AFTERWARDS SECTOR W 6 WITH GUSTS BY 4/0900 PROB OF ISOL SNOW FALL WORSENING STARTING THE MIDDLE OF THE PERIOD VIS GOOD TO MODERATE
NORTHER BELLINGSHAUSEN SEA W OF 80 - N OF 65S: NE 8 WITH GUSTS DECR SECTOR E 3 BY 4/0000 AFTERWARDS SW 4 BY 4/0900 PROB OF INTERMITTENT RAIN IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR N 4 BACK NW 3 BY 4/0000 AFTERWARDS SECTOR N 5 BY 4/1200 PROB OF ISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 3 INCR SECTOR N 5 BY 4/0600 AFTERWARDS NW 4 BY 4/1200 PROB OF SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE
NORTHERN WEDDELL SEA N OF 65S: SW 4 INCR SW 5 BY 4/0000 AFTERWARDS SECTOR S 3 BY 4/0900 PROB OF MIST IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA N OF 65S: SW 4 INCR SW 5 BY 4/0000 AFTERWARDS SECTOR S 3 BY 4/0900 PROB OF MIST IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 6 WITH GUSTS INCR SW 8 WITH GUSTS BY 4/0000 AFTERWARDS SW 4 BY 4/1200 PROB OF RAIN AND SNOW MIXTURE IMPR STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 4/5 INCR SW 6 WITH GUSTS BY 4/0000 AFTERWARDS SW 7 WITH GUSTS BY 4/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 03, MARCH 2026.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 91: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST IN SOUTH PATAGONIA COASTS FROM 04/0900
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1023HPA 42S 36W MOV E DPN EXTENDS CFNT59S 35W 48S 49W 38S 57W MOV E
021400 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 4806S 03228W 10X11NM
A23K 5116S 03604W 11X8NM A76C 5924S 03736W 16X7NM B15AB 5334S 03350W 10X4NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4957S 02315W 3X1NM ICEBERG2 5803S 03547W
5X2NM ICEBERG3 5149S 04035W 2X1NM ICEBERG4 5902S 04925W 5X4NM ICEBERG5 5023S
03924W 4X2NM ICEBERG6 5800S 03551W 3X1NM ICEBERG7 4828S 03333W 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 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-4
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3/4 VEER SECTOR W BY 03/2100 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR N 3/4 VEER SECTOR W BY 03/2100 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 4/5 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4/5 PROB OF SH TOWARDS THE END
OF THE PERIOD VIS GOOD TO MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/6 WITH GUSTS PROB OF SH
VIS MODERATE OCNL POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 4/5 WITH GUSTS VEER SECTOR N
5/6 WITH GUSTS BACK SECTOR W 6/7 WITH GUSTS PROB OF SH RAIN VIS MODERATE TO
POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W
6/7 WITH GUSTS BY 4/0300 PROB OF SH RAIN VIS MODERATE TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W 8
WITH GUSTS BY 4/0900 PROB OF SH RAIN VIS MODERATE TO POOR OCNL VERY POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W 5/6
WITH GUSTS BY 4/0900 PROB OF SH RAIN VIS GOOD OCNL POOR
ISLAS MALVINAS COASTS: SECTOR W 4/5 WITH GUSTS VEER SECTOR N 5/6 WITH GUSTS PROB
OF SH RAIN VIS MODERATE TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR S 5/6 WITH GUSTS PROB OF SH
DRIZZLE VIS MODERATE OCNL POOR
NORTH AREA (35S- 40S AND 20W- 55W) W OF 30 - E OF 40W: SECTOR W 4/5 PROB OF ISOL
RAIN VIS GOOD OCNL MODERATE
NORTH AREA (35S- 40S AND 20W- 55W) REST OF THE AREA: SECTOR N 4/5 WITH GUSTS
PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 46S: SECTOR S 5/6 WITH GUSTS PROB
OF SH RAIN VIS MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) REST OF THE AREA: SECTOR W 4/5 WITH
GUSTS VIS GOOD OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR N 5/6 PROB OF SH RAIN VIS
MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) W OF 30W: SECTOR N 6/7 GUST WITH 8
INTENSITY BACK SECTOR W 6/7 WITH GUSTS BY 03/1800 ISOL RAIN VIS MODERATE TO POOR
OCNL VERY POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) REST OF THE AREA: SECTOR W 6/7 WITH
GUSTS DECR SECTOR W 4/5 BY 4/0600 ISOL RAIN VIS MODERATE TO POOR OCNL VERY
POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR N 5/6 WITH GUSTS VEER
SECTOR W 4/5 BY 03/2100 PROB OF ISOL RAIN VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) REST OF THE AREA: SECTOR S 4/5 WITH
GUSTS VEER NE 5/6 BY 4/0900 PROB OF ISOL RAIN VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 5/6 WITH GUSTS PROB OF SH RAIN VIS
MODERATE OCNL POOR
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