1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 13, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
333/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-63S 50W-30W UNTIL 13/1800
334/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 AROUND ITSELF FROM 13/0300 UNTIL 13/1200
335/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV SE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-64S 62W-50W FROM 13/1200 UNTIL 14/0900
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 978HPA 64S 78W MOV E WKN
LOW 979HPA 62S 50W MOV SE DPN
LOW 62S 50W MOV SE DPN
LOW 977HPA 72S 55W MOV E WKN
121400 UTC 1.SEA ICE LIMIT 7247S 02000W 7041S 03010W 7505S 03024W 6538S 03339W 7715S 03358W 6114S 03418W 7250S 03550W 6119S 04405W 6201S 05030W 6415S 05450W 6310S 05719W 6641S 06716W 2.ICEBERGS GREATER THAN 10NM A23K 5056S 03507W 10X7NM A76C 5907S 03700W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4901S 03246W 9X7NM ICEBERG1 5742S 03539W 3X2NM ICEBERG2 5901S 04903W 2X1NM ICEBERG3 4841S 03355W 3X2NM ICEBERG4 5247S 03344W 7X2NM ICEBERG5 4713S 03350W 3X1NM ICEBERG6 4854S 03329W 4X2NM ICEBERG7 4850S 03317W 4X1NM ICEBERG8 4854S 03313W 3X2NM ICEBERG9 4903S 03303W 2X1NM 4.ICEBERGS AREA A 4400S 02000W 7400S 02000W 6200S 04500W 4400S 04500W B 6200S 04500W 5600S 04500W 6500S 05900W 6000S 06000W C 6000S 06000W 6500S 05900W 6900S 06716W 6400S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-03-14
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 4/5 VEER SECTOR N 3/4 BY 13/0600 AFTERWARDS SECTOR N 5/6 WITH GUSTS BY 13/1500 PROB OF MIST PROB OFMOD DRIZZLE RAIN WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 5/6 WITH GUSTS VEER NW 7/8 WITH GUSTS BY 13/0600 AFTERWARDS SECTOR N 8 BY 13/1200 PROB OF FOG MIST PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
MAR DE LA FLOTA COASTS W OF 60W: NW 4/5 VEER SECTOR N 3/4 BY 13/0600 AFTERWARDS SECTOR N 5/6 WITH GUSTS BY 13/1500 PROB OF MIST PROB OFMOD DRIZZLE RAIN WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5/6 WITH GUSTS VEER NW 7/8 WITH GUSTS BY 13/0600 AFTERWARDS SECTOR N 8 BY 13/1200 PROB OF FOG MIST PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
GERLACHE STRAIT : SECTOR N 4/5 VEER NE 5/6 BY 13/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
MARGARITA BAY : SECTOR N 4/5 VEER NE 3/4 BY 13/1800 PROB OF MIST PROB OFISOL RAIN AND SNOW MIXTURE IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : NW 4 INCR NW 6/8 WITH GUSTS BY 13/0900 PROB OF FOG MIST PROB OFMOD RAIN AND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: NW 3/4 BACK SECTOR W 5/6 BY 13/1200 PROB OF MIST PROB OFISOL DRIZZLE RAIN SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR N 5/6 WITH GUSTS BACK NW 4 BY 13/0900 PROB OF MIST PROB OFISOL DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 3/4 VEER NE 4/3 BY 13/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: NW 6/8 WITH GUSTS BACK SECTOR W 9 BY 13/1800 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING NOON VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: NW 3/4 VEER SE 4/5 BY 13/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR S 4/5 VEER SW 5/6 BY 13/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-13, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 104: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM SECTOR
W WITH GUST BETWEEN 55S-60S AND 20W-40W FROM 13/0600
WARNING 103: LOW 983HPA AT 60S 53W MOV E NOT CHANGE PROVOKES WINDS FORCE 8 FROM
SECTOR W WITH GUST BETWEEN 55S-60S AND 40W-55W UNTIL 13/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 983HPA 60S 53W MOV SE NC EXTENDS CFNT AT 60S 49W 50S 52W 40S 65W MOV E
HIGH 1026HPA 41S 34W MOV E
121400 UTC 1.SEA ICE LIMIT 7247S 02000W 7041S 03010W 7505S 03024W 6538S 03339W
7715S 03358W 6114S 03418W 7250S 03550W 6119S 04405W 6201S 05030W 6415S 05450W
6310S 05719W 6641S 06716W 2.ICEBERGS GREATER THAN 10NM A23K 5056S 03507W 10X7NM
A76C 5907S 03700W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4901S 03246W 9X7NM
ICEBERG1 5742S 03539W 3X2NM ICEBERG2 5901S 04903W 2X1NM ICEBERG3 4841S 03355W
3X2NM ICEBERG4 5247S 03344W 7X2NM ICEBERG5 4713S 03350W 3X1NM ICEBERG6 4854S
03329W 4X2NM ICEBERG7 4850S 03317W 4X1NM ICEBERG8 4854S 03313W 3X2NM ICEBERG9
4903S 03303W 2X1NM 4.ICEBERGS AREA A 4400S 02000W 7400S 02000W 6200S 04500W
4400S 04500W B 6200S 04500W 5600S 04500W 6500S 05900W 6000S 06000W C 6000S
06000W 6500S 05900W 6900S 06716W 6400S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-03-14
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 4 UNSTABLE VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR E 4 UNSTABLE VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR E 4/5 UNSTABLE PROB OF SH VIS GOOD OCNL
MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NE 4/5 WITH GUSTS BY 13/1800 PROB OF SH
VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): NE 5 WITH GUSTS BACK SECTOR N WITH
GUSTS BY 13/1200 PROB OF SH STORMS TOWARDS NIGTH VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS VEER SECTOR S 5
WITH GUSTS BY 13/1800 PROB OF HVY RAIN STORMS IMPR STARTING NIGTH VIS MODERATE
TO POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6/5 WITH GUSTS BACK SECTOR W 5
WITH GUSTS BY 13/1500 PROB OF ISOL SH STORMS VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 7/6 GUST WITH 8 INTENSITY SECTOR S
6/5 WITH GUSTS BY 13/0900 DECR PROB OF SH IMPR DURING THE EVENING VIS POOR TO
MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 7/6 GUST WITH 8 INTENSITY BACK
SECTOR W 6 WITH GUSTS BY 13/1200 DECR 5/4 BY 13/1500 PROB OF SH VIS POOR TO
MODERATE
ISLAS MALVINAS COASTS: SECTOR N 6 WITH GUSTS VEER SECTOR S 5/4 BY 13/1500 PROB
OF SH RAIN TOWARDS EVENING VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR E 5/4 PROB OF SH VIS
MODERATE
E OF 50W: SECTOR E 5 WITH GUSTS PROB OF HVY RAIN STORMS VIS MODERATE TO POOR
REST OF THE AREA: SECTOR E 5/4 PROB OF ISOL SH STORMS VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) W OF 30 - S OF 45S: VRB 3 VEER NE 3/4
BY 13/1500 VIS GOOD
REST OF THE AREA: W 5/3 VIS GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 4/5 INCR SECTOR N 5
WITH GUSTS BY 13/1500 INCR PROB OF SH VIS MODERATE TO GOOD
W OF 50 - N OF 45S: SECTOR N 5 WITH GUSTS INCR SECTOR N 6 WITH GUSTS BY 13/0900
PROB OF ISOL SH STORMS VIS MODERATE
REST OF THE AREA: SECTOR N 5 WITH GUSTS INCR 6/7 WITH GUSTS BY 13/1200
WORSENING WITH PROB OF HVY RAIN VIS MODERATE TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 4/6 WITH GUSTS VIS
MODERATE
REST OF THE AREA: NW 6 WITH GUSTS BACK SECTOR W 8/9 WITH GUSTS BY 13/0600 PROB
OF ISOL RAIN VIS VERY POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 52 - N OF 55S: SECTOR W 5/4 VEER
SECTOR N 6/7 GUST WITH 8 INTENSITY BY 13/1200 PROB OF RAIN VIS MODERATE OCNL
POOR
E OF 50 - S OF 55S: SECTOR W 9/8 WITH GUSTS VEER SECTOR N 5/6 WITH GUSTS BY
13/1200 PROB OF SH PROB OF RAIN STARTING EVENING VIS VERY POOR TO POOR
W OF 50 - N OF 55S: SECTOR N 4/5 INCR 5/6 WITH GUSTS BY 13/1200 WORSENING WITH
PROB OF RAIN NXT HVY RAIN STARTING EVENING VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 8 WITH GUSTS VEER SECTOR N 6/7 GUST WITH 8 INTENSITY
BY 13/0600 AFTERWARDS 6 WITH GUSTS BY 13/2100 PROB OF ISOL SH RAIN VIS POOR TO
MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 6/7 GUST WITH 8 INTENSITY BACK
SECTOR W 6 WITH GUSTS BY 13/1200 PROB OF RAIN VIS MODERATE OCNL POOR
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