1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 24, FEBRUARY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
225/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-64S 90W-70W FROM 24/1500 UNTIL 25/2100
226/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA MOV S WEAKENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR E IN 70S-73S 90W-70W FROM 25/0900 UNTIL 25/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
TROUGH 67S 74W 66S 70W 64S 65W MOV E WKN
HIGH 992HPA 66S 54W MOV E WKN
TROUGH 63S 38W 62S 42W 61S 47W MOV NE DPN
231400 UTC 1.SEA ICE LIMIT 7148S 02819W 6810S 03131W 6038S 03346W 6516S 03521W 6038S 03944W 6132S 04415W 6101S 04603W 6054S 04848W 6223S 05420W 6328S 05621W 6339S 06013W 6704S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 4555S 03243W 26X22NM A23K 5112S 03817W 11X8NM A76C 5932S 03824W 16X7NM B15AB 5334S 03429W 10X4NM ICEBERG1 5017S 02251W 14X3NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG2 5751S 03544W 5X2NM ICEBERG3 5011S 03534W 4X2NM ICEBERG4 5153S 04017W 2X1NM ICEBERG5 5950S 04903W 5X4NM ICEBERG6 5138S 03837W 2X1NM ICEBERG7 5121S 03956W 4X2NM ICEBERG8 5123S 04003W 3X1NM 4.ICEBERGS AREA A 6945S 02000W 4509S 02000W 4620S 03500W 6105S 03520W B 6105S 03520W 4755S 03450W 4800S 04315W 6100S 04830W C 6100S 04830W 5600S 04700W 6358S 06716W 6910S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-02-25
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR N 4/5 INCR NW 6/7 BY 24/2100 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING NOON VIS MODERATE OCNL POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4 VEER NW 5 BY 25/0000 AFTERWARDS NW 6 WITH GUSTS BY 25/0900 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING TOWARDS THE MIDDLE OF THE PERIOD VIS MODERATE OCNL POOR
MAR DE LA FLOTA COASTS W OF 60W: NW 3/4 INCR NW 6 WITH GUSTS BY 24/2100 AFTERWARDS NW 7 WITH GUSTS BY 25/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING NOON VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4 VEER SECTOR N 4/5 BY 25/0000 AFTERWARDS NW 5 BY 25/0600 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS MODERATE OCNL POOR
GERLACHE STRAIT : NW 3 VEER NE 5/6 WITH GUSTS BY 24/2100 PROB OF MIST PROB OFCOASTAL SNOW FALL WORSENING TOWARDS THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR
MARGARITA BAY : NE 4 INCR NE 6/7 WITH GUSTS BY 25/0000 PROB OF MIST PROB OFMOD SNOW FALL WORSENING TOWARDS THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR
EREBUS Y TERROR GULF : SECTOR E 3 BACK NE 3/4 BY 24/1800 AFTERWARDS NE 5 BY 25/0900 PROB OF MIST FOG PATCHES PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 5/6 WITH GUSTS INCR NW 8 WITH GUSTS BY 24/1500 PROB OF MIST PROB OFMOD RAIN WORSENING STARTING NOON VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 4/5 INCR NE 6/7 WITH GUSTS BY 24/1800 PROB OF MIST PROB OFMOD SNOW FALL WORSENING STARTING THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 4 INCR NE 7 WITH GUSTS BY 25/0300 AFTERWARDS SECTOR E 8 BY 25/0600 PROB OF MIST FOG PATCHES PROB OFMOD SNOW FALL WORSENING TOWARDS THE MIDDLE OF THE PERIOD VIS MODERATE TO POOR OCNL VERY POOR
NORTHERN WEDDELL SEA N OF 65S: NW 5/6 WITH GUSTS TEMPO BACK SW 5/6 WITH GUSTS BY 24/2100 AFTERWARDS SW 5 BY 25/1200 PROB OF INTERMITTENT RAIN AND SNOW MIXTURE IMPR TOWARDS THE MIDDLE OF THE PERIOD VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 INCR SW 5/6 WITH GUSTS BY 24/2100 PROB OF ISOL RAIN AND SNOW MIXTURE IMPR GRADUALLY STARTING NOON VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA W OF 40W: SW 4/5 DECR SW 3 BY 25/0600 PROB OF MIST IMPR GRADUALLY STARTING NOON VIS MODERATE TO POOR
SOUTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 4/5 VEER SE 4 BY 25/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR GRADUALLY TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-02-24, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 85: STRONG BARIC GRADIENT ON MOV E WILL PROVOKE WINDS FORCE 8 FROM
SECTOR N WITH GUST BETWEEN 50S-60S 20W-30W FROM 24/1800
WARNING 84: LOW 995HPA AT 47S 66W MOV NE DEEPENING EXPECTED 45S 55W BY 25/0000
WILL PROVOKE WINDS FORCE 9 AROUND ITSELF WITH GUST BETWEEN 40S-50S 60W-50W FROM
24/1500
WARNING 83: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 9 FROM SECTOR S
WITH GUST IN PENINSULA DE VALDES COASTS GOLFO DE SAN JORGE COASTS SOUTH
PATAGONIA COASTS
PART 2 GENERAL SYNOPSIS AT 21:00UTC
231400 UTC 1.SEA ICE LIMIT 7148S 02819W 6810S 03131W 6038S 03346W 6516S 03521W
6038S 03944W 6132S 04415W 6101S 04603W 6054S 04848W 6223S 05420W 6328S 05621W
6339S 06013W 6704S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 4555S 03243W 26X22NM
A23K 5112S 03817W 11X8NM A76C 5932S 03824W 16X7NM B15AB 5334S 03429W 10X4NM
ICEBERG1 5017S 02251W 14X3NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG2 5751S 03544W
5X2NM ICEBERG3 5011S 03534W 4X2NM ICEBERG4 5153S 04017W 2X1NM ICEBERG5 5950S
04903W 5X4NM ICEBERG6 5138S 03837W 2X1NM ICEBERG7 5121S 03956W 4X2NM ICEBERG8
5123S 04003W 3X1NM 4.ICEBERGS AREA A 6945S 02000W 4509S 02000W 4620S 03500W
6105S 03520W B 6105S 03520W 4755S 03450W 4800S 04315W 6100S 04830W C 6100S
04830W 5600S 04700W 6358S 06716W 6910S 06716W
HIGH 1026HPA 39S 34W MOV NE NC EXP 34S 30W BY 25/0000
HIGH 1011HPA 52S 33W MOV NE NC EXP 50S 20W BY 24/1800
LOW 994HPA 42S 65W MOV SE DPN EXP 45S 55W BY 25/0000 EXTENDS WFNT AT 42S 64W 43S
63W 44S 62W MOV SE
LOW 998HPA 49S 57W MOV SE WKN EXTENDS CFNT AT 49S 57W 46S 60W 44S 62W MOV E
ASOCIATED WITH WFNT AT 49S 57W 50S 52W 49S 47W
LOW 993HPA 56S 59W MOV E WKN EXTENDS CFNT AT 56S 60W 52S 61W 49S 64W MOV E
ASOCIATED WITH WFNT AT 56S 60W 57S 57W 58S 55W
LOW 995HPA 47S 66W MOV NE DPN EXP 45S 55W BY 25/0000 EXTENDS CFNT AT 48S 66W 45S
67W MOV NE
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-02-25
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4 BACK SECTOR W 3 BY 24/0900 BACK SE 4/5 WITH
GUSTS BY 24/1800 PROB OF RAIN STORMS SPELLS OF GOOD WEATHER VIS MODERATE OCNL
POOR
OUTER RIO DE LA PLATA: SECTOR N 4 BACK SECTOR W 3 BY 24/0900 BACK SECTOR S 5/6
GUST WITH 8 INTENSITY BY 24/1800 PROB OF RAIN STORMS SPELLS OF GOOD WEATHER VIS
MODERATE TO POOR OCNL VERY POOR
URUGUAY SOUTH EAST COASTS: SECTOR N 6/5 WITH GUSTS BACK VRB 3 BY 24/1200 BACK
SECTOR S 6 GUST WITH 8 INTENSITY BY 24/2100 PROB OF HVY RAIN STORMS SPELLS OF
GOOD WEATHER VIS MODERATE TO POOR OCNL VERY POOR
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 6/5 WITH GUSTS BACK SECTOR W 4
BY 24/1200 BACK SECTOR S 6 GUST WITH 8 INTENSITY BY 24/1800 PROB OF ISOL SH RAIN
NEXT RAIN STORMS VIS POOR OCNL MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 6 GUST WITH 8 INTENSITY BACK
SECTOR S 5/6 GUST WITH 8 INTENSITY WORSENING WITH PROB OF SH RAIN STARTING EARLY
MORNING SPELLS OF GOOD WEATHER VIS MODERATE TO POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5 WITH GUSTS BACK SW 6/7 GUST
WITH 8 INTENSITY BY 24/0300 INCR 8 WITH GUSTS BY 24/0600 PROB OF RAIN STORMS
IMPR TOWARDS THE END OF THE PERIOD VIS POOR OCNL VERY POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 5 BACK SECTOR S 8/9 WITH GUSTS BY
24/0300 DECR 8/7 WITH GUSTS BY 24/2100 PROB OF HVY RAIN IMPR TOWARDS THE END OF
THE PERIOD VIS VERY POOR TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR S 7/8 WITH GUSTS DECR 6/5 BY 24/2100
PROB OF ISOL SH RAIN IMPR STARTING EVENING VIS POOR TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 6 GUST WITH 8 INTENSITY VEER SW 5/4
WITH GUSTS BY 24/1200 VEER W 4 WITH GUSTS BY 24/1800 PROB OF ISOL DRIZZLE RAIN
IMPR STARTING EARLY MORNING VIS MODERATE OCNL POOR TO GOOD
ISLAS MALVINAS COASTS: SECTOR S 6 GUST WITH 8 INTENSITY DECR 5/4 BY 24/2100 PROB
OF ISOL DRIZZLE RAIN VIS POOR TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR E 4/3 DECR VRB 3 VIS GOOD
E OF 45W: NE 4 BACK N 5 WITH GUSTS BY 24/1800 WORSENING WITH PROB OF ISOL RAIN
TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
REST OF THE AREA: SECTOR N 6 GUST WITH 8 INTENSITY BACK SW 6 WITH GUSTS BY
24/2100 WORSENING WITH PROB OF HVY RAIN STORMS VIS POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 5/4 VIS GOOD
REST OF THE AREA: SECTOR W 4 VEER NW 5 LOW PROB OF ISOL RAIN VIS GOOD OCNL
MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR N 5/6 GUST WITH 8
INTENSITY WORSENING WITH PROB OF HVY RAIN STORMS STARTING EVENING VIS GOOD TO
MODERATE OCNL POOR
W OF 50 - N OF 45S: SECTOR N 5/7 GUST WITH 8 INTENSITY BACK SECTOR W 8 WITH
GUSTS BY 24/1200 WORSENING WITH PROB OF HVY RAIN STORMS VIS MODERATE TO POOR
OCNL VERY POOR
W OF 50 - S OF 45S: SECTOR N 7 GUST WITH 8 INTENSITY VEER SECTOR S 7/9 WITH
GUSTS BY 24/1800 PROB OF HVY RAIN STORMS VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR N 7 GUST WITH 8 INTENSITY VEER SECTOR S 7/9 WITH GUSTS
BY 24/1800 PROB OF HVY RAIN STORMS VIS VERY POOR TO POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR S 4 VEER SECTOR N 5/6
WITH GUSTS BY 24/0900 INCR 8 WITH GUSTS BY 24/1800 WORSENING WITH PROB OF SH
RAIN STARTING EVENING VIS GOOD TO MODERATE OCNL POOR
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS BACK W 6 GUST WITH 8 INTENSITY BY
24/1800 PROB OF SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: SECTOR N 4 BACK
SECTOR W 5 WITH GUSTS BACK SECTOR S 5/6 WITH GUSTS PROB OF HVY SH RAIN SPELLS OF
GOOD WEATHER VIS POOR OCNL MODERATE
W OF 50 - N OF 55S: VRB 4 INCR SECTOR S 6 GUST WITH 8 INTENSITY BY 24/0900 PROB
OF SH RAIN IMPR STARTING NOON VIS POOR TO MODERATE
E OF 50 - S OF 55S: NW 5 WITH GUSTS BACK SW 6/5 WITH GUSTS BY 24/0900 VEER W 4
BY 24/1800 PROB OF SH RAIN IMPR STARTING EVENING VIS MODERATE OCNL POOR TO
GOOD
REST OF THE AREA: SECTOR S 5 WITH GUSTS VEER SECTOR W WITH GUSTS BY 24/1200
PROB OF SH RAIN NEXT DRIZZLE RAIN VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5/6 GUST WITH 8 INTENSITY PROB OF
DRIZZLE RAIN VIS MODERATE OCNL POOR
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