1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-23, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 122: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST IN GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS
FROM 24/0300
WARNING 121: STRONG BARIC GRADIENT MOV E WILL PROVOKE WINDS FORCE 8 FROM SECTOR
N WITH GUST IN GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS ISLAS MALVINAS
COASTS BETWEEN 40S-60S AND 60W-50W FROM 23/1500
WARNING 119: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 9 FROM SECTOR W
WITH GUST BETWEEN 50S-55S AND 50W-20W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
221400 UTC 1.SEA ICE LIMIT 7156S 02000W 7021S 02830W 6804S 03032W 7245S 03044W
6118S 03316W 6521S 03319W 6144S 04115W 6129S 04355W 6213S 04949W 6437S 05542W
6416S 06354W 6634S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5849S 03623W 16X7NM
3.ICEBERGS SMALLER THAN 10NM A23A 4831S 03037W 9X7NM A23K 5008S 03403W 10X7NM
ICEBERG1 5816S 03529W 3X2NM ICEBERG2 4837S 03323W 3X2NM ICEBERG3 5218S 03239W
7X2NM ICEBERG4 4733S 03053W 3X1NM ICEBERG5 4749S 03112W 4X2NM ICEBERG6 4829S
03007W 4X1NM ICEBERG7 4834S 03007W 3X2NM ICEBERG8 4831S 03010W 2X2NM ICEBERG9
4528S 02955W 3X2NM 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 975HPA 54S 40W MOV SE EXTENDS CFNT AT 54S 40W 45S 33W 40S 40W MOV SE
LOW 1004HPA 28S 60W MOV SE DPN EXP 40S 46W BY 24/1200 EXTENDS WFNT AT 28S 60W
326S 54W MOV SE EXP 40S 46W 40S 36W BY 24/1200
LOW 981HPA 53S 72W MOV SE DPN EXTENDS CFNT AT 53S 72W 45S 76W MOV SE EXP 58S 59W
49S 57W 42S 64W BY 24/1200
HIGH 1017HPA 38S 51W MOV E
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-24
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 BACK SECTOR S 4/3 BY 24/0000 PROB OF ISOL RAIN IMPR
GRADUALLY VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: VRB 3 BACK SECTOR S 5/4 BY 24/0000 PROB OF DRIZZLE RAIN
STARTING NIGTH IMPR VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 5/4 VEER VRB 3 BY 23/1500 BACK SECTOR S 5/6
WITH GUSTS BY 24/0300 PROB OF DRIZZLE RAIN NXT PROB OFHVY RAIN STORMS IMPR
STARTING NIGTH VIS POOR
MAR DEL PLATA COASTS(3617S - 3830S): VRB 3 BACK SECTOR S 5/6 WITH GUSTS BY
24/0000 PROB OF RAIN STORMS NXT PROB OF SH IMPR STARTING EARLY MORNING VIS
MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): VRB 4 VEER SECTOR W 5 BY 23/1500 VEER
SECTOR N 5/6 WITH GUSTS BY 24/0300 PROB OF SH RAIN IMPR STARTING EVENING VIS
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 4/5 VEER SECTOR N 6/7 WITH
GUSTS BY 23/1800 BACK SECTOR W 6/5 WITH GUSTS BY 24/0600 PROB OF SH DURING THE
MORNING VIS MODERATE TO POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6/7 WITH GUSTS INCR 8 GUST WITH
9 INTENSITY BY 23/1500 BACK SECTOR W 7/8 WITH GUSTS BY 24/0300 PROB OF DRIZZLE
RAIN DURING THE EVENING VIS VERY POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 6/7 WITH GUSTS INCR 8 GUST WITH 9
INTENSITY BY 23/1500 BACK SECTOR W 7/8 WITH GUSTS BY 24/0300 PROB OF DRIZZLE
RAIN VIS VERY POOR.
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 6/7 WITH GUSTS BACK SECTOR W 7/8
WITH GUSTS BY 24/0300 PROB OF HVY RAIN VIS VERY POOR
ISLAS MALVINAS COASTS: SECTOR W 4 VEER SECTOR N 6/8 WITH GUSTS BY 23/1800 INCR 8
GUST WITH 9 INTENSITY BY 24/0300 PROB OF DRIZZLE RAIN DURING THE MORNING PROB OF
RAIN DURING THE NIGTH VIS VERY POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 3/4 VIS GOOD
REST OF THE AREA: SECTOR E 4/6 WITH GUSTS BACK SECTOR N 5/6 WITH GUSTS BY
24/0300 VEER SECTOR W WITH GUSTS BY 24/0600 PROB OF HVY RAIN STORMS STARTING
EVENING VIS VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR N 5/6 WITH GUSTS BACK
VRB 3/4 BY 24/0300 PROB OF DRIZZLE RAIN VIS MODERATE
REST OF THE AREA: SECTOR N 6/7 WITH GUSTS BACK SECTOR W WITH GUSTS BY 23/1500
PROB OF DRIZZLE RAIN IMPR STARTING EVENING VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45 - E OF 50W: VRB 3/4 VEER E 6/7
WITH GUSTS BY 24/0600 PROB OF RAIN STORMS STARTING NIGTH VIS GOOD TO VERY POOR
S OF 45 - E OF 50W: SECTOR W 6/7 WITH GUSTS DECR 6/5 WITH GUSTS BY 24/0300 VEER
SECTOR N 6/7 WITH GUSTS BY 24/0900 VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 5/4 VEER SECTOR N 5/6 WITH GUSTS BY 23/1800 INCR 6/8
WITH GUSTS BY 24/0300 VIS VERY POOR TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: NW 7/9 WITH GUSTS BACK SECTOR
W WITH GUSTS BY 23/2100 PROB OF SH RAIN IMPR TOWARDS THE END OF THE PERIOD VIS
VERY POOR
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS VEER SECTOR S 6/7 WITH GUSTS BY
23/1800 PROB OF SH RAIN IMPR TOWARDS THE END OF THE PERIOD VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55 - E OF 50W: SECTOR W 8 GUST WITH
9 INTENSITY DECR 6/5 WITH GUSTS BY 24/0600 VEER SECTOR N 6/7 WITH GUSTS BY
24/0900 PROB OF SH RAIN IMPR STARTING NIGTH VIS VERY POOR
S OF 55 - E OF 50W: SECTOR S 6/7 WITH GUSTS VEER SECTOR N 5/7 WITH GUSTS BY
24/0900 PROB OF SH RAIN IMPR STARTING NIGTH VIS POOR OCNL VERY POOR
REST OF THE AREA: SW 5/4 WITH GUSTS VEER SECTOR N 5/6 WITH GUSTS BY 23/2100
INCR 8 GUST WITH 9 INTENSITY BY 24/0300 PROB OF RAIN STARTING EARLY MORNING VIS
VERY POOR TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 6/7 WITH GUSTS BACK SECTOR W WITH
GUSTS BY 24/0900 PROB OF HVY RAIN STARTING EVENING VIS VERY POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 23, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
379/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM NE GUST WITH 9 INTENSITY IN 60S-65S 76W-70W UNTIL 23/1800
380/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM NE GUST WITH 9 INTENSITY IN 60S-65S 70W-60W UNTIL 24/1200
381/2026 STRONG BARIC GRADIENT GERLACHE STRAIT MARGARITA BAY MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR E GUST WITH 10 INTENSITY IN 65S-69S 70W-65W UNTIL 24/2100
382/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR S GUST WITH 10 INTENSITY IN 60S-64S 90W-78W UNTIL 24/0300
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 954HPA 60S 80W MOV SE DPN
LOW 975HPA 70S 87W MOV E WKN
LOW 991HPA 69S 50W MOV SE WKN
HIGH 994HPA 67S 40W MOV E WKN
221400 UTC 1.SEA ICE LIMIT 7156S 02000W 7021S 02830W 6804S 03032W 7245S 03044W 6118S 03316W 6521S 03319W 6144S 04115W 6129S 04355W 6213S 04949W 6437S 05542W 6416S 06354W 6634S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5849S 03623W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4831S 03037W 9X7NM A23K 5008S 03403W 10X7NM ICEBERG1 5816S 03529W 3X2NM ICEBERG2 4837S 03323W 3X2NM ICEBERG3 5218S 03239W 7X2NM ICEBERG4 4733S 03053W 3X1NM ICEBERG5 4749S 03112W 4X2NM ICEBERG6 4829S 03007W 4X1NM ICEBERG7 4834S 03007W 3X2NM ICEBERG8 4831S 03010W 2X2NM ICEBERG9 4528S 02955W 3X2NM 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 2026-03-24
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 7/8 GUST WITH 9 INTENSITY DECR NE 7 BY 24/0300 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 W 4/5 VEER SECTOR N 6/7 GUST WITH 8 INTENSITY BY 23/2100 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT DRIZZLE RAIN WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL VERY POOR
MAR DE LA FLOTA COASTS W OF 60W: NE 7/8 GUST WITH 9 INTENSITY DECR NE 7 BY 24/0300 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: SECTOR N 4/5 VEER NE 6/7 GUST WITH 8 INTENSITY BY 23/2100 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT DRIZZLE RAIN WORSENING DURING THE EVENING VIS MODERATE TO VERY POOR
GERLACHE STRAIT : NE 7/8 GUST WITH 9 INTENSITY DECR SECTOR E 7/6 BY 24/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
MARGARITA BAY : NE 7/8 GUST WITH 9 INTENSITY INCR SECTOR E 9 WITH GUSTS BY 24/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR
EREBUS Y TERROR GULF : NW 4/5 INCR NW 7 GUST WITH 8 INTENSITY BY 23/1800 PROB OF MIST FOG PATCHES WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: SECTOR S 7/8 WITH GUSTS VEER SW 7/6 WITH GUSTS BY 23/2100 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA E OF 80 - N OF 65S: NE 7/8 WITH GUSTS VEER SE 7/9 WITH GUSTS BY 23/1800 AFTERWARDS SW 8 WITH GUSTS BY 23/2100 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 4/5 BACK SECTOR S 7 BY 23/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 5/6 WITH GUSTS BACK SECTOR S 7 BY 23/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
NORTHERN WEDDELL SEA W OF 40W: SE 5/6 WITH GUSTS BACK SECTOR E 4/5 BY 24/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 3/4 VEER NW 4/5 BY 23/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SE 4/5 BY 23/2100 VIS GOOD=