1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-02-23, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 83: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR S IN
GOLFO DE SAN JORGE COASTS SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS FROM
23/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
SEA ICE AND ICEBERGS REPORT 221400 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 4655S 03320W 26X22NM
A23K 5112 03817W 11X8NM
A76C 5931S 03827W 16X7NM
B15AB 5939S 03436W 10X4NM
ICEBERG1 5039S 02216W 14X3NM
3.ICEBERGS SMALLER THAN 10NM
ICEBERG2 5749S 03546W 5X2NM
ICEBERG3 5041S 03555W 4X2NM
ICEBERG4 5153S 04017W 2X1NM
ICEBERG5 5936S 04923W 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 1023HPA 38S 43W MOV E INTSF
LOW 1005HPA 57S 27W MOV SE WKN EXTENDS CFNT AT 54S 27W 48S 55W 44S 63W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-02-24
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 5/4 VEER SECTOR E 4 BY 23/1500 LOW PROB OF RAIN
STARTING EARLY MORNING NXT PROB OFHVY STORMS DURING THE EVENING VIS GOOD TO
MODERATE
OUTER RIO DE LA PLATA: NE 5/4 VEER SECTOR E 4 BY 23/1500 LOW PROB OF RAIN
STARTING EARLY MORNING NXT PROB OFHVY STORMS DURING THE EVENING VIS GOOD TO
MODERATE
URUGUAY SOUTH EAST COASTS: NE 5/4 VEER SECTOR E 4 BY 23/1500 LOW PROB OF RAIN
STARTING EARLY MORNING NXT PROB OFHVY STORMS DURING THE EVENING VIS GOOD TO
MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NE 5/6 WITH GUSTS PROB OF HVY RAIN STORMS
TOWARDS EVENING VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 6 WITH GUSTS LOW PROB OF
STORMS TOWARDS NIGTH VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/7 WITH GUSTS BACK SECTOR S 7
GUST WITH 8 INTENSITY BY 23/2300 PROB OF STORMS TOWARDS NIGTH VIS MODERATE TO
POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): NE 4/5 VEER SECTOR W 5/6 WITH GUSTS BY
23/0900 BACK SECTOR S 8 WITH GUSTS BY 23/2300 PROB OF SH RAIN STARTING NIGTH VIS
GOOD TO MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 6 WITH GUSTS BACK SECTOR S 8 BY
23/2100 PROB OF RAIN STARTING EVENING VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 7/6 WITH GUSTS BACK SECTOR S 8 BY
23/2100 PROB OF RAIN VIS POOR
ISLAS MALVINAS COASTS: SECTOR N 5/6 DECR 4/3 BY 23/2100 PROB OF RAIN VIS
MODERATE TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR S 5/4 BACK SECTOR E BY
23/2300 LOW PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
W OF 45W: SECTOR N 4/5 PROB OF ISOL RAIN VIS MODERATE
REST OF THE AREA: SECTOR E 4/5 LOW PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45 - E OF 30W: SECTOR S 4 BACK
SECTOR W 5/6 BY 23/1500 VIS GOOD
S OF 45 - E OF 30W: SECTOR S 4/5 VEER NW 5/6 BY 23/0600 INCR 7 WITH GUSTS BY
23/1500 PROB OF RAIN STARTING EVENING VIS GOOD TO MODERATE OCNL POOR
REST OF THE AREA: NW 5/6 WITH GUSTS BACK W BY 23/2300 LOW PROB OF RAIN TOWARDS
NIGTH VIS GOOD TO MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: NW 6 WITH GUSTS VIS GOOD
REST OF THE AREA: SECTOR N 6 WITH GUSTS INCR 7 GUST WITH 8 INTENSITY BY 23/2100
PROB OF RAIN TOWARDS NIGTH VIS GOOD TO MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: NW 6/7 WITH GUSTS
PROB OF RAIN VIS POOR
S OF 55S: SECTOR W 5/4 WITH GUSTS PROB OF RAIN AND SNOW MIXTURE VIS MODERATE TO
POOR
REST OF THE AREA: NW 6/7 WITH GUSTS BACK SECTOR E 5/4 BY 23/1800 PROB OF RAIN
IMPR TOWARDS EVENING VIS POOR TO GOOD
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR S 4 BACK SECTOR N 5/6
BY 23/1200 PROB OF RAIN STARTING EVENING VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 6/5 VEER SECTOR N 6 WITH GUSTS BY 23/0900 PROB OF
RAIN STARTING EARLY MORNING VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 7/6 GUST WITH 8 INTENSITY BACK
SECTOR S 5/6 WITH GUSTS BY 23/1800 PROB OF RAIN AND SNOW MIXTURE VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 22, FEBRUARY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
207/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-65S 90W-75W UNTIL 22/1800
208/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV E WEAKENING PROVOKES WINDS FORCE 8 WITH GUST IN 62S-67S 55W-50W UNTIL 22/2100
209/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 WITH GUST IN 62S-67S 60W-40W UNTIL 22/2100
210/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA SOUTHERN WEDDELL SEA PROVOKES WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-77S 40W-30W UNTIL 22/1500
211/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA WILL PROVOKE WINDS FORCE 8 FROM SE WITH GUST VEER SECTOR S IN 70S-75S 50W-40W FROM 22/1500 UNTIL 23/1200
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 956HPA 68S 85W MOV E WKN
RIDGE 64S 64W 63S 63W 61S 62W MOV E WKN
LOW 963HPA 70S 45W MOV E DPN
211400 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 4703S 03344W 26X22NM A23K 5110S 03831W 11X8NM A76C 5932S 03829W 16X7NM B15AB 5939S 03436W 10X4NM ICEBERG1 5039S 02216W 14X3NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG2 5746S 03544W 5X2NM ICEBERG3 5041S 03555W 4X2NM ICEBERG4 5150S 04014W 2X1NM ICEBERG5 5935S 04916W 5X4NM ICEBERG6 5143S 03902W 2X1NM ICEBERG7 5112S 03939W 8X5NM 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 2026-02-23
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT : NW 6/5 WITH GUSTS DECR NW 4/5 BY 23/0000 PROB OF ISOL DRIZZLE RAIN WORSENING STARTING EVENING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS W OF 55W: NW 6/5 WITH GUSTS DECR NW 4 BY 23/0000 PROB OF MIST PROB OFISOL RAIN WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 8 WITH GUSTS DECR NW 6 WITH GUSTS BY 23/0000 PROB OF ISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
GERLACHE STRAIT : N 4/5 VEER NE 5 BY 23/0300 PROB OF MIST PROB OFCOASTAL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MARGARITA BAY : NE 5/7 WITH GUSTS DECR SECTOR E 6 BY 23/0300 PROB OF ISOL SNOW FALL WORSENING TOWARDS NIGTH VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : NW 8 WITH GUSTS DECR NW 6/5 WITH GUSTS BY 22/1800 PROB OF MIST VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 65S: NW 8 WITH GUSTS BACK SECTOR W 7 BY 22/1800 PROB OF MIST PROB OFSCT SH SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 4/5 WITH GUSTS VEER SECTOR W 5/6 BY 22/2100 PROB OF MIST PROB OFMOD SNOW FALL IMPR GRADUALLY TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SE 7 GUST WITH 8 INTENSITY DECR SE 5 WITH GUSTS BY 23/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR GRADUALLY DURING THE NIGTH VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 66S: SECTOR W 8 WITH GUSTS DECR SECTOR W 7/5 WITH GUSTS BY 23/0000 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 4/5 WITH GUSTS INCR SECTOR W 6/8 WITH GUSTS BY 23/0300 PROB OF MIST FOG PATCHES PROB OFMOD SNOW FALL WORSENING STARTING EVENING VIS MODERATE TO POOR OCNL VERY POOR
SOUTHERN WEDDELL SEA W OF 40W: SECTOR S 8 WITH GUSTS VEER SW 8 WITH GUSTS BY 23/0000 PROB OF FOG MIST PROB OFMOD SNOW FALL WORSENING STARTING NOON VIS POOR TO MODERATE=