762
WWST02 SABM 181200
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-09-18, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 381: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM NW WITH GUST
BETWEEN 40S-50S AND 20W-30W UNTIL 18/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1028HPA 42S 54W MOV NE NC
LOW 997HPA 48S 25W MOV SE EXTENDS CFNT AT 48S 25W 40S 35W 38S 47W
STATIONARY FRONT 39S 61W 38S 58W 38S 51W
171400 UTC 1.SEA ICE LIMIT 55 24S 020 00W 54 40S 023 29W 54 58S 028 57W 55 59S
030 44W 57 23S 034 35W 58 46S 039 16W 59 33S 044 28W 60 19S 048 21W 62 19S 053
44W 63 20S 059 35W 64 13S 063 54W 66 16S 067 16W 2.ICEBERGS GREATER THAN 10NM
A23A 52 40S 037 18W 32X24NM A74A 55 05S 041 46W 27X17NM A77 58 00S 049 15W
27X4NM A76C 59 55S 047 22W 16X7NM B15AB 60 11S 052 39W 11X4NM A23G 53 27S 039
07W 20X8NM A23H 53 17S 037 29W 10X2NM A23I 52 26S 036 53W 19X8NM ICEBERG1 52 31S
040 57W 12X2NM 3.ICEBERGS SMALLER THAN 10NM A23E 51 05S 033 31W 9X4NM ICEBERG2
53 31S 037 37W 3X1NM ICEBERG3 59 01S 050 58W 9X2NM ICEBERG4 54 52S 037 12W 3X1NM
ICEBERG5 49 05S 025 07W 3X2NM ICEBERG6 53 08S 029 15W 3X1NM ICEBERG7 53 32S 038
26W 4X1NM ICEBERG8 57 34S 049 25W 6X4NM ICEBERG9 49 55S 028 30W 2X1NM ICEBERG10
50 47S 033 55W 3X3NM ICEBERG11 59 15S 051 20W 2X1NM ICEBERG12 51 16S 031 47W
3X1NM ICEBERG13 52 59S 036 59W 3X1NM ICEBERG14 53 21S 039 22W 9X4NM ICEBERG15 51
47S 039 23W 3X1NM ICEBERG16 53 22S 037 34W 7X3NM ICEBERG17 52 18S 032 53W 2X1NM
ICEBERG18 50 01S 028 15W 2X1NM ICEBERG19 50 07S 030 23W 3X1NM ICEBERG20 49 54S
028 38W 6X4NM ICEBERG21 53 02S 037 07W 2X1NM ICEBERG22 54 36S 037 30W 2X1NM
ICEBERG23 53 03S 036 54W 2X2NM ICEBERG24 52 40S 036 45W 3X1NM ICEBERG25 56 00S
043 13W 3X1NM 4.ICEBERGS AREA A: 55 47S 020 00W 45 00S 020 00W 48 00S 039 54W 59
17S 040 00W B: 59 17S 040 00W 50 00S 040 00W 51 40S 050 00W 60 47S 049 55W C: 60
47S 049 55W 57 00S 050 36W 63 30S 067 16W 67 00S 067 16W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-09-19
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3 LOW PROB OF ISOL RAIN PROB OF MIST FOG PATCHES
STARTING EARLY MORNING VIS MODERATE OCNL POOR
OUTER RIO DE LA PLATA: SECTOR E 3 MIST FOG PATCHES TEMPORARILY DISSIPATING VIS
MODERATE OCNL POOR
URUGUAY SOUTH EAST COASTS: SECTOR E 3 MIST FOG PATCHES TEMPORARILY DISSIPATING
VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(36º17S - 38º30S): SECTOR E 4 BACK SECTOR N BY 19/0600 MIST
FOG PATCHES TEMPORARILY DISSIPATING VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(38º30S - 41ºS): SECTOR N 4/5 WITH GUSTS BACK SECTOR W
3 BY 19/0900 HVY STORMS VIS POOR
PENINSULA DE VALDES COASTS(41ºS - 45ºS): SECTOR N 5 WITH GUSTS BACK SECTOR S 3
BY 19/0900 PROB OF HVY RAIN STORMS IMPR TOWARDS THE END OF THE PERIOD VIS POOR
GOLFO DE SAN JORGE COASTS(45ºS - 48ºS): SECTOR N 5 WITH GUSTS BACK SECTOR S 4 BY
19/0600 PROB OF ISOL RAIN IMPR STARTING EARLY MORNING VIS MODERATE
SOUTH PATAGONIA COASTS(48ºS - 54ºS): SECTOR W 5 WITH GUSTS BACK SECTOR S BY
19/0000 PROB OF ISOL RAIN IMPR STARTING EARLY MORNING VIS MODERATE
FIN DEL MUNDO COASTS(54ºS - 55ºS): SECTOR W 5/6 WITH GUSTS LOW PROB OF ISOL RAIN
AND SNOW MIXTURE VIS GOOD OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR W 6/5 WITH GUSTS BACK SW 4 WITH GUSTS PROB OF RAIN
STARTING EVENING IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) W OF 45W: SECTOR E 4/5 WITH GUSTS BACK SECTOR
N BY 19/0300 LOW PROB OF ISOL RAIN VIS MODERATE
W OF 35 - E OF 45W: VRB 4/5 BACK SECTOR N 5 WITH GUSTS BY 19/0300 PROB OF RAIN
SPELLS OF GOOD WEATHER VIS GOOD OCNL MODERATE
REST OF THE AREA: NW 6/5 WITH GUSTS BACK SECTOR S BY 18/2100 PROB OF RAIN
SPELLS OF GOOD WEATHER VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) W OF 30W: SECTOR W 6/5 WITH GUSTS RAIN
AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE
REST OF THE AREA: NW 8 WITH GUSTS BACK SECTOR W 6 WITH GUSTS BY 18/1800 PROB OF
RAIN AND SNOW MIXTURE VIS POOR TO MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: VRB 4 BACK SECTOR N 6 GUST
WITH 8 INTENSITY BY 19/0000 PROB OF ISOL RAIN STORMS VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS RAIN VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR W 5/6 WITH GUSTS PROB
OF ISOL RAIN AND SNOW MIXTURE VIS MODERATE
REST OF THE AREA: SECTOR W 3/4 WITH GUSTS PROB OF ISOL RAIN AND SNOW MIXTURE
VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 6/5 WITH GUSTS PROB OF RAIN
AND SNOW MIXTURE VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6/5 WITH GUSTS RAIN AND SNOW
MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE
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