1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 21, FEBRUARY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 STORM WARNING:
192/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV S WEAKENING PROVOKES WINDS FORCE 10 WITH GUST IN 60S-66S 90W-75W UNTIL 22/1200
GALE WARNING:
193/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E WEAKENING PROVOKES WINDS FORCE 8 IN 64S-67S 55W-50W UNTIL 21/1800
194/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 WITH GUST IN 60S-64S 70W-50W FROM 21/1500 UNTIL 22/2100
195/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA SOUTHERN WEDDELL SEA PROVOKES WINDS FORCE 8 FROM NE WITH GUST IN 60S-77S 50W-30W UNTIL 22/1500
196/2026 STRONG BARIC GRADIENT SOUTHERN WEDDELL SEA WILL PROVOKE WINDS FORCE 8 FROM SECTOR S WITH GUST IN 70S-75S 50W-40W FROM 22/0600 UNTIL 22/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 943HPA 67S 85W MOV E DPN
LOW 971HPA 69S 58W MOV E WKN
RIDGE 65S 63W 63S 61W 63S 59W MOV E WKN
201400 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 4732S 03417W 26X22NM A23K 5108S 03842W 11X8NM A76C 5932S 03829W 16X7NM B15AB 5939S 03436W 10X4NM ICEBERG1 5100S 02130W 14X3NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG2 5745S 03542W 5X2NM ICEBERG3 5058S 03646W 4X2NM ICEBERG4 5150S 04014W 2X1NM ICEBERG5 5935S 04911W 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 2026-02-22
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT : NW 7 WITH GUSTS INCR NW 8 WITH GUSTS BY 21/1500 AFTERWARDS NW 6 WITH GUSTS BY 22/0900 PROB OF ISOL RAIN IMPR DURING THE MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 50W: NW 5/6 WITH GUSTS INCR NW 8 WITH GUSTS BY 21/1800 AFTERWARDS NW 5 BY 22/0900 PROB OF ISOL RAIN AND SNOW MIXTURE IMPR STARTING NOON VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 5/6 WITH GUSTS INCR NW 8 WITH GUSTS BY 21/1800 AFTERWARDS NW 6 BY 22/0900 PROB OF ISOL RAIN AND SNOW MIXTURE IMPR DURING THE EVENING VIS MODERATE TO GOOD
GERLACHE STRAIT : NE 5/6 WITH GUSTS BACK NW 6 WITH GUSTS BY 21/2100 AFTERWARDS NW 4 BY 22/0600 PROB OF MIST PROB OFCOASTAL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS MODERATE TO POOR
MARGARITA BAY : SECTOR N 5/6 BACK NW 6 WITH GUSTS BY 21/2100 AFTERWARDS NW 5 BY 22/0600 PROB OF ISOL SNOW FALL WORSENING STARTING NOON VIS GOOD TO MODERATE
EREBUS Y TERROR GULF W OF 55W: NW 4 VEER SECTOR N 4 BY 21/2100 AFTERWARDS SECTOR W 5 BY 22/0300 PROB OF MIST DISSIPATING DURING THE MORNING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF REST OF THE AREA: NE 8 WITH GUSTS DECR NW 5 BY 21/1800 AFTERWARDS NW 7 WITH GUSTS BY 22/0900 VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 63S: NW 8 WITH GUSTS INCR NW 7 WITH GUSTS BY 21/1800 AFTERWARDS NW 8 WITH GUSTS BY 22/0600 PROB OF MOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA W OF 80 - S OF 63S: SE 5/6 WITH GUSTS INCR SE 7 WITH GUSTS BY 21/2100 PROB OF ISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 8 WITH GUSTS BACK NW 8 WITH GUSTS BY 21/2100 AFTERWARDS NW 7 WITH GUSTS BY 22/0600 PROB OF ISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SE 6 WITH GUSTS INCR SE 7 GUST WITH 8 INTENSITY BY 21/2100 PROB OF ISOL SNOW FALL WORSENING STARTING NOON VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA W OF 40W: SECTOR N 8 WITH GUSTS BACK NW 8 WITH GUSTS BY 21/2100 AFTERWARDS NW 10 WITH GUSTS BY 22/0300 PROB OF MOD RAIN AND SNOW MIXTURE IMPR STARTING EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NW 3 INCR SECTOR N 6 WITH GUSTS BY 21/2100 AFTERWARDS SECTOR N 8 WITH GUSTS BY 22/0600 PROB OF MOD RAIN AND SNOW MIXTURE WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN WEDDELL SEA W OF 40W: NE 5/6 VEER SE 8 WITH GUSTS BY 22/0600 PROB OF MOD SNOW FALL WORSENING STARTING NOON VIS MODERATE TO POOR
SOUTHERN WEDDELL SEA REST OF THE AREA: NE 6 WITH GUSTS INCR NE 8 WITH GUSTS BY 21/2100 AFTERWARDS NE 10 WITH GUSTS BY 22/0900 PROB OF MOD SNOW FALL WORSENING STARTING EVENING VIS MODERATE TO POOR=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-02-21, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1017HPA 37S 55W MOV E INTSF
CFNT AT 59S 48W 52S 42W 46S 44W MOV E
LOW 1005HPA 44S 35W MOV E NC EXTENDS CFNT AT 44S 35W 41S 37W 35S 44W MOV NE
201400 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 4732S 03417W 26X22NM
A23K 5108S 03842W 11X8NM A76C 5932S 03829W 16X7NM B15AB 5939S 03436W 10X4NM
ICEBERG1 5100S 02130W 14X3NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG2 5745S 03542W
5X2NM ICEBERG3 5058S 03646W 4X2NM ICEBERG4 5150S 04014W 2X1NM ICEBERG5 5935S
04911W 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-02-22
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 5/4 WITH GUSTS DECR 4 BY 21/0900 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR E 5/4 WITH GUSTS DECR 4 BY 21/0900 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR E 4 WITH GUSTS INCR 5/6 WITH GUSTS BY 21/1800
VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4 WITH GUSTS INCR 4/5 WITH GUSTS
BY 21/1800 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 4 WITH GUSTS VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 4/5 WITH GUSTS VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 3 VEER SECTOR N 4/5 WITH GUSTS BY
21/0600 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5 WITH GUSTS BACK SECTOR W 4 WITH
GUSTS BY 21/0600 PROB OF RAIN STARTING EVENING VIS GOOD TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): NW 5 WITH GUSTS INCR 5/6 WITH GUSTS BY
21/0600 PROB OF RAIN VIS MODERATE
ISLAS MALVINAS COASTS: NW 4 WITH GUSTS BACK VRB 4/3 BY 21/1800 UNSTABLE VIS GOOD
OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SW 4 VEER SECTOR W 4 BY 21/0600
PROB OF RAIN STORMS VIS MODERATE
E OF 40 - W OF 30W: SECTOR S 5 WITH GUSTS PROB OF SH RAIN IMPR STARTING EARLY
MORNING VIS MODERATE TO GOOD
E OF 50 - W OF 40W: SE 4 BACK VRB 4/3 BY 21/0900 VIS GOOD
REST OF THE AREA: SECTOR N 4/5 WITH GUSTS VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR S 4 BACK VRB 4/3 BY
21/0600 BACK SECTOR S 4/5 WITH GUSTS BY 21/1800 PROB OF SH RAIN VIS MODERATE
OCNL GOOD
REST OF THE AREA: SW 6/5 WITH GUSTS PROB OF RAIN STORMS IMPR STARTING EVENING
VIS MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45 - E OF 50W: SECTOR S 5 WITH
GUSTS VEER SECTOR W 4 BY 21/0600 VEER NW 4/3 BY 21/2100 VIS GOOD
S OF 45 - E OF 50W: SECTOR W 4 VEER NW 4 BY 21/1800 VIS GOOD
REST OF THE AREA: NW 4 VEER SECTOR N 4/5 WITH GUSTS BY 21/1800 VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 4/3 BACK SECTOR N 3/4 BY
21/1500 VIS GOOD
REST OF THE AREA: SECTOR N 4/5 WITH GUSTS PROB OF ISOL RAIN IMPR STARTING EARLY
MORNING VIS MODERATE OCNL GOOD
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 5 WITH GUSTS VEER
SECTOR N 5/6 WITH GUSTS BY 21/1200 PROB OF DRIZZLE RAIN VIS MODERATE OCNL GOOD
REST OF THE AREA: NW 5/6 WITH GUSTS BACK SECTOR W 4/5 WITH GUSTS BY 21/1800
PROB OF ISOL RAIN VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): NW 5/6 WITH GUSTS INCR 6/7 GUST WITH 8
INTENSITY BY 21/0900 PROB OF DRIZZLE RAIN VIS MODERATE OCNL POOR
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