1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-04-24, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 173: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 9 FROM SECTOR N WITH
GUST BETWEEN 45S-60S 20W-40W
WARNING 172: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN GOLFO DE SAN JORGE COASTS UNTIL 24/1200
WARNING 170: LOW 987HPA AT 46S 46W MOV SE WEAKENING PROVOKES WINDS FORCE 8
AROUND ITSELF WITH GUST BETWEEN 45S-55S AND 40W-50W UNTIL 24/1200
PART 2 GENERAL SYNOPSIS AT 21:00UTC
231400 UTC 1.SEA ICE LIMIT 6840S 02000W 6828S 02729W 6327S 03132W 6009S 03309W
6059S 03952W 6217S 05036W 6337S 05311W 6313S 05740W 6339S 06042W 6431S 06416W
6601S 06544W 6644S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5839S 03606W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4652S 02859W 6X3NM ICEBERG2 4951S 02816W
5X3NM ICEBERG3 4659S 02857W 4X2NM ICEBERG4 4703S 02903W 3X1NM ICEBERG5 5752S
03615W 3X1NM ICEBERG6 4409S 03514W 2X1NM 4.ICEBERGS AREA A6859S 02000W 4124S
02000W 4307S 03613W 6507S 03625W B6107S 03625W 4305S 03613W 6002S 05503W 6328S
05500W C6328S 05500W 6002S 05503W 6445S 06716W 6638S 06716W
LOW 987HPA 46S 46W MOV SE WKN EXTENDS CFNT AT 49S 44W 43S 40W 35S 42W MOV E
CFNT AT 60S 57W 53S 62W 48S 66W
HIGH 1020HPA 35S 52W MOV SE WKN
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-04-25
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 PROB OF MIST STARTING EARLY MORNING IMPR
STARTING EARLY MORNING VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: NW 3 PROB OF MIST STARTING EARLY MORNING IMPR DURING THE
MORNING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: VRB 3 PROB OF FOG MIST IMPR DURING THE MORNING VIS
GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NW 5/4 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5 WITH GUSTS VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 6 WITH GUSTS VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 8/7 WITH GUSTS PROB OF SH
STARTING EARLY MORNING VIS VERY POOR TO POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 6/7 WITH GUSTS PROB OF SH VIS
POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 5/6 WITH GUSTS PROB OF SH RAIN AND
SNOW MIXTURE VIS POOR
ISLAS MALVINAS COASTS: NW 4 BACK SECTOR W 6/7 WITH GUSTS BY 24/0900 PROB OF RAIN
VIS MODERATE TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 7/5 WITH GUSTS PROB OF HVY
RAIN NEXT ISOL RAIN VIS POOR TO MODERATE
REST OF THE AREA: SECTOR W 5 VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR N 7 GUST WITH 8
INTENSITY PROB OF HVY RAIN NEXT RAIN VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR N 8 WITH GUSTS PROB OF RAIN VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 7/6 WITH GUSTS PROB
OF SH STARTING EVENING VIS POOR
E OF 50 - S OF 45S: SECTOR W 8/7 WITH GUSTS PROB OF RAIN VIS VERY POOR TO
POOR
REST OF THE AREA: SECTOR W 7 WITH GUSTS PROB OF SH VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 7 WITH GUSTS INCR
SECTOR N 8/9 WITH GUSTS BY 24/1200 PROB OF RAIN STARTING EARLY MORNING VIS VERY
POOR TO POOR
REST OF THE AREA: SECTOR N 8/9 WITH GUSTS PROB OF RAIN VIS VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: SECTOR N 8 WITH
GUSTS BACK SECTOR W 7 GUST WITH 8 INTENSITY BY 24/1200 PROB OF HVY RAIN NEXT
RAIN VIS VERY POOR TO POOR
W OF 50 - N OF 55S: SECTOR N 5/6 WITH GUSTS BACK SECTOR W 7 WITH GUSTS BY
24/1200 PROB OF RAIN VIS POOR
REST OF THE AREA: SECTOR N 6/5 WITH GUSTS BACK VRB 5/4 PROB OF RAIN SNOW FALL
VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6 WITH GUSTS PROB OF SH RAIN AND
SNOW MIXTURE VIS POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 24, APRIL 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
570/2026 STRONG BARIC GRADIENT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR E WITH GUST IN 62S-64S 68W-58W UNTIL 24/1200
571/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR N WITH GUST IN 60S-64S 45W-30W UNTIL 24/0300
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 967HPA 63S 70W MOV SE DPN
LOW 977HPA 67S 53W MOV SE WKN
LOW 978HPA 69S 39W MOV E WKN
231400 UTC 1.SEA ICE LIMIT 6840S 02000W 6828S 02729W 6327S 03132W 6009S 03309W 6059S 03952W 6217S 05036W 6337S 05311W 6313S 05740W 6339S 06042W 6431S 06416W 6601S 06544W 6644S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5839S 03606W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4652S 02859W 6X3NM ICEBERG2 4951S 02816W 5X3NM ICEBERG3 4659S 02857W 4X2NM ICEBERG4 4703S 02903W 3X1NM ICEBERG5 5752S 03615W 3X1NM ICEBERG6 4409S 03514W 2X1NM 4.ICEBERGS AREA A6859S 02000W 4124S 02000W 4307S 03613W 6507S 03625W B6107S 03625W 4305S 03613W 6002S 05503W 6328S 05500W C6328S 05500W 6002S 05503W 6445S 06716W 6638S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-04-25
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 7/5 GUST WITH 8 INTENSITY VEER NW 5/4 BY 24/0600 PROB OF FOG AND MIST IN PATCHES PROB OFMOD RAIN SPELLS OF GOOD WEATHER DURING THE MORNING VIS VERY POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 8 WITH GUSTS DECR NW 5/4 BY 24/0900 PROB OF MIST PROB OFMOD RAIN IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SECTOR E 7/8 WITH GUSTS VEER SE 7/5 BY 24/1200 PROB OF FOG AND MIST IN PATCHES PROB OFMOD RAIN SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR N 8 WITH GUSTS DECR NW 5/4 BY 24/0900 PROB OF MIST PROB OFMOD RAIN IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
GERLACHE STRAIT : SECTOR E 7/5 WITH GUSTS DECR SECTOR E 5/4 BY 24/0600 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD
MARGARITA BAY : SECTOR E 7/8 WITH GUSTS DECR SECTOR E 5/4 WITH GUSTS BY 24/0600 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 7/8 WITH GUSTS INCR SW 8 GUST WITH 9 INTENSITY BY 24/1200 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/6 WITH GUSTS INCR SW 7 WITH GUSTS BY 24/1200 PROB OF MIST PROB OFINTERMITTENT RAIN SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR S 4/5 VEER SW 5/6 BY 24/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE MORNING VIS GOOD TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SE 3/4 VEER SECTOR S 4/5 BY 24/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA N OF 65S: SECTOR N 7 WITH GUSTS VEER NE 7/8 WITH GUSTS BY 24/1200 AFTERWARDS NE 5/4 BY 24/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR E 4/5 WITH GUSTS BACK NW 7 GUST WITH 8 INTENSITY BY 23/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): VRB 3 INCR SW 4/5 BY 24/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE=