1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-31, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 133: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR W
WITH GUST IN SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS DRAKE AREA (55S- 60S
AND 60W- 67W) FROM 31/1500
PART 2 GENERAL SYNOPSIS AT 21:00UTC
301400 UTC 1.SEA ICE LIMIT 7052S 02000W 6617S 03023W 6130S 03147W 6244S 03258W
6135S 04305W 6245S 05035W 6257S 05513W 6434S 05528W 6408S 06334W 6525S 06541W
6558S 06643W 6610S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5912S 03633W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5128S 03258W 5X2NM ICEBERG2 4845S 03244W
3X1NM ICEBERG3 4805S 02955W 4X1NM ICEBERG4 4824S 02959W 3X2NM ICEBERG5 4727S
02918W 2X2NM ICEBERG6 4826S 03016W 9X7NM ICEBERG7 5002S 03424W 9X7NM ICEBERG8
5008S 03002W 3X1NM ICEBERG9 4514S 034119W 2X1NM 4.ICEBERGS AREA A 7200S 02000W
4200S 02000W 4300S 04000W 6200S 04000W B 4500S 04000W 6200S 04000W 5800S 05000W
6500S 05100W C 5800S 05000W 6500S 05100W 6300S 06716W 6900S 06716W
HIGH 1026HPA 38S 36W MOV NE NC EXP 35S 27W BY 31/2300
STATIONARY FRONT PENINSULA DE VALDES COASTS
CFNT AT 58S 26W 50S 26W 47S 29W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-4-1
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 5/4 WITH GUSTS VIS GOOD
OUTER RIO DE LA PLATA: SECTOR E 6/5 WITH GUSTS VIS GOOD
URUGUAY SOUTH EAST COASTS: NE 5 WITH GUSTS VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5/6 WITH GUSTS PROB OF MIST FOG
PATCHES NEXT RAIN STORMS TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/6 WITH GUSTS BACK SECTOR S
BY 31/2100 PROB OF HVY STORMS VIS POOR OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS BACK SECTOR S 7
GUST WITH 8 INTENSITY BY 31/1800 PROB OF HVY RAIN STORMS IMPR TOWARDS THE END OF
THE PERIOD VIS POOR OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W 7
GUST WITH 8 INTENSITY BY 31/1200 PROB OF ISOL RAIN STORMS IMPR STARTING EARLY
MORNING VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 6 WITH GUSTS BACK SECTOR W 8 WITH
GUSTS BY 31/1500 DECR 6 BY 31/2300 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS
MODERATE TO VERY POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W 7 WITH
GUSTS BY 31/1200 INCR 8 WITH GUSTS BY 31/1800 PROB OF RAIN SPELLS OF GOOD
WEATHER VIS MODERATE TO VERY POOR
ISLAS MALVINAS COASTS: SECTOR N 5/6 WITH GUSTS BACK SECTOR W 6/7 GUST WITH 8
INTENSITY BY 31/2100 PROB OF ISOL SH RAIN STARTING EARLY MORNING VIS GOOD TO
MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR S 5 VEER SECTOR W 6 WITH
GUSTS BY 31/0900 LOW PROB OF ISOL RAIN DURING THE EVENING VIS GOOD OCNL
MODERATE
W OF 30 - E OF 40W: VRB 3/4 INCR SECTOR N 5 BY 31/2300 VIS GOOD
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS LOW PROB OF ISOL RAIN VIS GOOD OCNL
MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR W 6/7 GUST
WITH 8 INTENSITY PROB OF RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO
POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS PROB OF ISOL SH RAIN SPELLS OF GOOD
WEATHER VIS MODERATE OCNL GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR W 6 WITH GUSTS VEER
SECTOR N BY 31/0600 INCR 7 GUST WITH 8 INTENSITY BY 31/2100 PROB OF ISOL RAIN
STORMS VIS MODERATE TO POOR OCNL VERY POOR
W OF 50 - N OF 45S: SECTOR N 6/7 GUST WITH 8 INTENSITY BACK SECTOR S BY 31/2100
PROB OF RAIN STORMS STARTING EARLY MORNING VIS GOOD TO POOR OCNL VERY POOR
REST OF THE AREA: SECTOR N 6/7 GUST WITH 8 INTENSITY BACK SECTOR W BY 31/2100
PROB OF HVY RAIN STORMS IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
OCNL VERY POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR W 6 WITH GUSTS PROB OF
RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS DECR VRB 4 BY 31/1800 PROB OF ISOL RAIN
STARTING EARLY MORNING SPELLS OF GOOD WEATHER VIS GOOD TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: NW 5 BACK W VEER
SECTOR N 5/7 GUST WITH 8 INTENSITY BY 31/1800 PROB OF RAIN SPELLS OF GOOD
WEATHER VIS MODERATE TO POOR OCNL VERY POOR
E OF 50 - S OF 55S: VRB 4 INCR NE 6/7 GUST WITH 8 INTENSITY BY 31/2100 PROB OF
RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO POOR OCNL VERY POOR
W OF 50 - N OF 55S: SECTOR N 5/6 WITH GUSTS INCR 7 GUST WITH 8 INTENSITY BY
31/1500 BACK SECTOR W BY 31/2300 PROB OF RAIN STORMS STARTING EVENING VIS GOOD
TO POOR OCNL VERY POOR
REST OF THE AREA: SECTOR N 4/5 VEER 7 GUST WITH 8 INTENSITY BY 31/1500 BACK
SECTOR N BY 31/2100 PROB OF RAIN VIS MODERATE TO POOR OCNL VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 6/5 WITH GUSTS VEER SECTOR E 6/7
GUST WITH 8 INTENSITY BY 31/0900 VEER SECTOR W 8 WITH GUSTS BY 31/1800 PROB OF
RAIN VIS VERY POOR TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 31, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
423/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV SE WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST VEER NE IN 65S-73S 80W-70W UNTIL 31/1800
424/2026 STRONG BARIC GRADIENT MARGARITA BAY MOV S WEAKENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR E GUST WITH 9 INTENSITY IN 66S-69S 70W-65W UNTIL 31/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
RIDGE 60S 44W 63S 43W 65S 42W MOV E WKN
LOW 952HPA 67S 80W MOV SE WKN
LOW 969HPA 60S 90W MOV SE DPN
LOW 984HPA 68S 54W MOV E WKN
LOW 979HPA 64S 32W MOV E WKN
301400 UTC 1.SEA ICE LIMIT 7052S 02000W 6617S 03023W 6130S 03147W 6244S 03258W 6135S 04305W 6245S 05035W 6257S 05513W 6434S 05528W 6408S 06334W 6525S 06541W 6558S 06643W 6610S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5912S 03633W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5128S 03258W 5X2NM ICEBERG2 4845S 03244W 3X1NM ICEBERG3 4805S 02955W 4X1NM ICEBERG4 4824S 02959W 3X2NM ICEBERG5 4727S 02918W 2X2NM ICEBERG6 4826S 03016W 9X7NM ICEBERG7 5002S 03424W 9X7NM ICEBERG8 5008S 03002W 3X1NM ICEBERG9 4514S 034119W 2X1NM 4.ICEBERGS AREA A 7200S 02000W 4200S 02000W 4300S 04000W 6200S 04000W B 4500S 04000W 6200S 04000W 5800S 05000W 6500S 05100W C 5800S 05000W 6500S 05100W 6300S 06716W 6900S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-4-1
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 6/5 WITH GUSTS VEER NE 7 WITH GUSTS BY 31/1200 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 4/5 VEER NE 9/10 WITH GUSTS BY 31/1200 PROB OF MIST PROB OFISOL DRIZZLE RAIN WORSENING STARTING NOON VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NW 6/5 WITH GUSTS VEER NE 7 WITH GUSTS BY 31/1200 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 4/5 VEER NE 6/7 WITH GUSTS BY 31/1200 PROB OF MIST PROB OFISOL DRIZZLE RAIN WORSENING STARTING NOON VIS GOOD TO MODERATE
GERLACHE STRAIT : NE 6/7 WITH GUSTS DECR SECTOR E 5/4 BY 31/1800 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
MARGARITA BAY : SECTOR E 6/7 GUST WITH 8 INTENSITY INCR SECTOR E 8 WITH GUSTS BY 31/0900 PROB OF ISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : NW 4/5 BACK SECTOR S 5/6 BY 31/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: SECTOR W 7/5 GUST WITH 8 INTENSITY VEER NW 5/4 WITH GUSTS BY 31/0600 PROB OF MIST PROB OFINTERMITTENT DRIZZLE RAIN SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR E 8 WITH GUSTS VEER SE 7 BY 31/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 8 WITH GUSTS VEER SE 7 GUST WITH 8 INTENSITY BY 31/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
NORTHERN WEDDELL SEA N OF 65S: NW 5/6 WITH GUSTS BACK SECTOR W 4/5 BY 31/0900 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SE 3/4 BACK SECTOR E 5/4 BY 31/0900 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 5/4 BY 31/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD=