602
WWST02 SABM 171200
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-09-17, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 379: LOW 990HPA AT 51S 40W MOV SE DEEPENING PROVOKES WINDS FORCE 8
AROUND ITSELF WITH GUST
WARNING 378: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS DRAKE AREA (55S- 60S AND 60W-
67W) BETWEEN 45S-55S AND 40W-60W
WARNING 377: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR N
WITH GUST BETWEEN 40S-60S AND 20W-30W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
161400 UTC 1.SEA ICE LIMIT 5524S 02000W 5440S 02329W 5458S 02857W 5559S 03044W
5723S 03435W 5846S 03916W 5933S 04428W 6019S 04821W 6219S 05344W 6320S 05935W
6413S 06354W 6616S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5233S 03712W 32X24NM
A74A 5451S 04158W 27X17NM A77 5802S 04950W 27X4NM A76C 5955S 04734W 16X7NM B15AB
6013S 05243W 11X4NM A23G 5330S 03857W 20X8NM A23H 5308S 03722W 10X2NM A23I 5232S
03646W 19X8NM ICEBERG1 5232S 04058W 12X2NM 3.ICEBERGS SMALLER THAN 10NM A23E
5105S 03331W 9X4NM ICEBERG2 5331S 03736W 3X1NM ICEBERG3 5906S 05107W 9X2NM
ICEBERG4 5452S 03712W 3X1NM ICEBERG5 4935S 02521W 3X2NM ICEBERG6 5308S 02915W
3X1NM ICEBERG7 5325S 03800W 4X1NM ICEBERG8 5745S 04844W 6X4NM ICEBERG9 4955S
02830W 2X1NM ICEBERG10 5047S 03355W 3X3NM ICEBERG11 5915S 05138W 2X1NM ICEBERG12
5116S 03147W 3X1NM ICEBERG13 5254S 03700W 3X1NM ICEBERG14 5323S 03849W 9X4NM
ICEBERG15 5148S 03925W 3X1NM ICEBERG16 5314S 03721W 7X3NM ICEBERG17 5218S 03253W
2X1NM ICEBERG18 4953S 02838W 2X1NM ICEBERG19 5007S 03023W 3X1NM ICEBERG20 4955S
02907W 6X4NM ICEBERG21 5250S 03717W 2X1NM ICEBERG22 5436S 03730W 2X1NM ICEBERG23
5300S 03708W 2X2NM ICEBERG24 5250S 03650W 3X1NM ICEBERG25 5600S 04313W 3X1NM
4.ICEBERGS AREA A: 5547S 02000W 4500S 02000W 4800S 03954W 5917S 04000W B: 5917S
04000W 5000S 04000W 5140S 05000W 6047S 04955W C: 6047S 04955W 5700S 05036W 6330S
06716W 6700S 06716W
LOW 990HPA 51S 40W MOV SE DPN EXTENDS CFNT AT 51S 40W 44S 45W 40S 57W MOV E EXP
50S 22W 42S 27W 37S 38W BY 18/1200
STATIONARY FRONT 40S 57W 39S 59W 39S 62W
HIGH 1022HPA 46S 66W MOV NE INTSF EXP 40S 47W BY 18/1200
HIGH 1032HPA 36S 33W MOV NE NC EXP 30S 30W BY 18/1200
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-09-18
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 VEER SECTOR E BY 17/1800 PROB OF FOG PATCHES
DISSIPATING TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SECTOR N 3 VEER SECTOR E BY 17/1800 PROB OF FOG PATCHES
DISSIPATING TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 3 VEER SECTOR E 5 WITH GUSTS BY 17/1800 PROB
OF FOG PATCHES DISSIPATING TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(36º17S - 38º30S): SECTOR N 3 VEER SECTOR E BY 17/1800 VIS
GOOD
RINCON BAHIA BLANCA COASTS(38º30S - 41ºS): SECTOR E 5/6 WITH GUSTS BACK NE PROB
OF RAIN STORMS VIS MODERATE TO POOR
PENINSULA DE VALDES COASTS(41ºS - 45ºS): SECTOR E 4 BACK NE 5 WITH GUSTS BY
18/0000 INCR 5/6 WITH GUSTS BY 18/0300 PROB OF RAIN STORMS STARTING EARLY
MORNING VIS GOOD TO POOR
GOLFO DE SAN JORGE COASTS(45ºS - 48ºS): VRB 3 BACK SECTOR N BY 18/0000 INCR 5/6
WITH GUSTS BY 18/1200 PROB OF RAIN SPELLS OF GOOD WEATHER VIS MODERATE
SOUTH PATAGONIA COASTS(48ºS - 54ºS): SECTOR W 5/6 WITH GUSTS PROB OF VIS
MODERATE
FIN DEL MUNDO COASTS(54ºS - 55ºS): SECTOR W 7 GUST WITH 8 INTENSITY DECR 6/5
WITH GUSTS BY 18/0300 PROB OF ISOL RAIN VIS POOR
ISLAS MALVINAS COASTS: SECTOR W 7 GUST WITH 8 INTENSITY DECR 6/5 WITH GUSTS BY
18/0300 PROB OF RAIN AND SNOW MIXTURE VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: VRB 4 VEER NW 6/7 WITH GUSTS BY
17/1800 PROB OF RAIN STORMS STARTING EARLY MORNING VIS POOR
REST OF THE AREA: SECTOR N 4/5 WITH GUSTS BACK SECTOR E PROB OF ISOL RAIN
DURING THE EARLY MORNING VIS GOOD OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 5 WITH GUSTS INCR 7
GUST WITH 8 INTENSITY BY 17/2100 PROB OF RAIN STORMS STARTING EVENING VIS
MODERATE TO POOR
REST OF THE AREA: SECTOR N 6/7 WITH GUSTS BACK SECTOR W WITH GUSTS PROB OF RAIN
STORMS IMPR TOWARDS THE END OF THE PERIOD VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W - N OF 45S: NW 5/6 WITH GUSTS
BACK SW PROB OF RAIN STORMS IMPR TOWARDS THE END OF THE PERIOD VIS POOR
W OF 50W - N OF 45S: SECTOR S 5 WITH GUSTS VEER SECTOR E 3 BY 18/0000 PROB OF
VIS GOOD
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF ISOL RAIN VIS
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 7/8 WITH GUSTS BACK
SECTOR W 5 WITH GUSTS PROB OF RAIN VIS VERY POOR TO POOR
REST OF THE AREA: VRB 3 BACK SW 6/8 WITH GUSTS BY 17/2100 VEER SECTOR W 5 WITH
GUSTS BY 18/0000 PROB OF SNOW FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR W 6 WITH GUSTS INCR 8
WITH GUSTS BY 18/0000 PROB OF ISOL RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR W 5 WITH GUSTS INCR 6/7 WITH GUSTS BY 18/0600 PROB OF
ISOL SNOW FALL VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7/8 WITH GUSTS PROB OF RAIN SNOW
FALL VIS VERY POOR TO POOR
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