023
WWST02 SABM 260000
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-08-26, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 352: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST IN FIN DEL MUNDO COASTS DRAKE AREA (55S- 60S AND 60W- 67W) BETWEEN
55S-60S AND 50W-60W
WARNING 351: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 40S-45S AND 30W-40W UNTIL 26/1200
WARNING 350: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 40S-50S AND 20W-30W UNTIL 25/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 987HPA 48S 31W MOV E NC EXTENDS CFNT AT 48S 30W 41S 32W 37S 41W 36S 49W MOV
NE
LOW 1001HPA 51S 53W MOV NE WKN EXP 42S 39W BY 27/0000 EXTENDS CFNT AT 51S 53W
51S 56W 51S 58W MOV NE
RIDGE 36S 59W 42S 58W 49S 62W MOV E WKN
241400 UTC 1.SEA ICE LIMIT 5626S 02000W 5535S 02406W 5510S 02707W 5547S 03121W
5703S 03618W 5754S 04111W 5913S 04403W 5915S 04740W 6106S 05119W 6203S 05615W
6342S 06218W 6553S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5336S 03619W 40X32NM
A74A 5718S 04514W 27X17NM A77 6025S 05539W 27X4NM A76C 5952S 04802W 16X7NM B15AB
6121S 05249W 11X4NM ICEBERG1 5319S 04026W 12X2NM 3.ICEBERGS SMALLER THAN 10NM
A23D 5125S 03732W 8X4NM A23E 5201S 03341W 9X4NM A23F 5350S 03552W 9X4NM ICEBERG2
5342S 03617W 3X1NM ICEBERG3 5118S 03038W 3X3NM ICEBERG4 6024S 05223W 9X2NM
ICEBERG5 5519S 04008W 4X2NM ICEBERG6 5216S 03735W 2X2NM ICEBERG7 4815S 02622W
3X2NM ICEBERG8 5257S 03255W 3X1NM ICEBERG9 5206S 03614W 3X1NM ICEBERG10 4720S
02639W 2X1NM ICEBERG11 5258S 03641W 4X1NM ICEBERG12 5112S 03638W 3X1NM ICEBERG13
5352S 03458W 3X1NM ICEBERG14 6020S 05359W 6X4NM ICEBERG15 5329S 03527W 4X1NM
ICEBERG16 5218S 03502W 2X1NM ICEBERG17 5246S 03745W 3X2NM ICEBERG18 5346S 03532W
3X3NM ICEBERG19 6036S 05534W 2X1NM ICEBERG20 5331S 03519W 2X1NM 4.ICEBERGS AREA
A: 5725S 02000W 4500S 02000W 4500S 03500W 5727S 03520W B: 5727S 03520W 4900S
03500W 5300S 05000W 6000S 04738W C: 6000S 04738W 5700S 04900W 6310S 06716W 6750S
06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-08-27
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 SE 3 BY 26/1800 LOW PROB OF MIST DURING THE MORNING
VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR E 3 SECTOR N 3 BY 26/1500 PROB OF MIST DURING THE
MORNING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: VRB 3 SECTOR E 3 PROB OF MIST DURING THE MORNING VIS
GOOD OCNL MODERATE
MAR DEL PLATA COASTS(36º17S - 38º30S): VRB 3 NW 3 PROB OF MIST FOG PATCHES
DURING THE MORNING VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(38º30S - 41ºS): VRB 3 NW 4 BY 26/0900 DECR 3 VIS
GOOD
PENINSULA DE VALDES COASTS(41ºS - 45ºS): SECTOR N 4 BACK SW 4/3 BY 26/0900 VEER
SECTOR N 4/5 BY 26/2100 VIS GOOD
GOLFO DE SAN JORGE COASTS(45ºS - 48ºS): NW 5 WITH GUSTS BACK SECTOR S 5/4 BY
26/0600 BACK SECTOR N 5/6 GUST WITH 8 INTENSITY BY 26/1800 VIS GOOD OCNL
MODERATE
SOUTH PATAGONIA COASTS(48ºS - 54ºS): SW 6/7 GUST WITH 8 INTENSITY VEER W 6 GUST
WITH 8 INTENSITY BY 26/1200 VEER N 6 GUST WITH 8 INTENSITY BY 26/1800 LOW PROB
OF RAIN ISOL DRIZZLE TOWARDS THE END OF THE PERIOD VIS MODERATE
FIN DEL MUNDO COASTS(54ºS - 55ºS): SECTOR W 8 WITH GUSTS DECR 6 GUST WITH 8
INTENSITY BY 26/1500 NW 6 WITH GUSTS BY 26/2100 PROB OF ISOL RAIN AND SNOW
MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR W 5 INCR 6 GUST WITH 8 INTENSITY BY 26/0900 N 6
GUST WITH 8 INTENSITY BY 26/2100 LOW PROB OF ISOL RAIN AND SNOW MIXTURE VIS
MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: NW 6 GUST WITH 8 INTENSITY BACK SW
5 WITH GUSTS BY 26/1200 PROB OF RAIN SH SPELLS OF GOOD WEATHER VIS MODERATE OCNL
POOR
E OF 45W: SW 6/5 WITH GUSTS PROB OF RAIN SH IMPR TOWARDS THE END OF THE PERIOD
VIS MODERATE OCNL POOR
REST OF THE AREA: SW 5/4 WITH GUSTS VEER W 4 BY 26/1200 LOW PROB OF ISOL
DRIZZLE TOWARDS MORNING VIS MODERATE TO GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: W 8 BACK SW 8/7 WITH GUSTS
BY 26/0900 DECR 5 BY 26/2100 PROB OF RAIN SH NEXT SH RAIN AND SNOW MIXTURE VIS
POOR TO MODERATE
W OF 30 - N OF 45S: SECTOR W 8 WITH GUSTS DECR 6/5 WITH GUSTS BY 26/1200 SW 6
GUST WITH 8 INTENSITY BY 26/2100 PROB OF RAIN SH VIS POOR TO MODERATE
REST OF THE AREA: SW 6/5 WITH GUSTS PROB OF ISOL SNOW FALL VIS MODERATE OCNL
POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SW 6/5 GUST WITH 8 INTENSITY
PROB OF RAIN SH VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 5 WITH GUSTS VRB 3 BY 26/1800 LOW PROB OF ISOL
DRIZZLE IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SW 6 GUST WITH 8 INTENSITY VEER W 6
GUST WITH 8 INTENSITY BY 26/1800 LOW PROB OF ISOL SNOW FALL VIS MODERATE OCNL
POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 5/6 GUST WITH 8
INTENSITY INCR 7 GUST WITH 8 INTENSITY BY 26/1800 PROB OF SH OF SNOW SNOW FALL
VIS MODERATE TO POOR
W OF 50 - S OF 55S: SECTOR S 6 GUST WITH 8 INTENSITY INCR 8 WITH GUSTS BY
26/0900 PROB OF SH OF SNOW SNOW FALL VIS POOR OCNL VERY POOR
REST OF THE AREA: NW 6 GUST WITH 8 INTENSITY BACK W 6 GUST WITH 8 INTENSITY BY
26/0900 LOW PROB OF SH OF SNOW SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS
MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7/8 WITH GUSTS VEER NW 6 GUST WITH
8 INTENSITY BY 26/2100 PROB OF SH OF SNOW SNOW FALL VIS POOR
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