134
WWST02 SABM 280000
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-12-28, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 510: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 50S-55S 20W-30W FROM 28/0900
WARNING 509: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 45S-50S AND 40W-60W
WARNING 508: LOW 959HPA AT 58S 45W MOV N EXPECTED 52S 56W BY 28/2100 WILL
PROVOKE WINDS FORCE 9 FROM SW WITH GUST BETWEEN 50S-60S AND 40W-60W FROM
28/0300
WARNING 507: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR N
WITH GUST IN CENTRAL EAST AREA (40S- 50S AND 20W- 40W) UNTIL 28/1800
WARNING 506: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR E WITH
GUST BETWEEN 55S-60S AND 30W-40W UNTIL 28/0900
WARNING 503: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN
FIN DEL MUNDO COASTS ISLAS MALVINAS COASTS DRAKE AREA (55S- 60S AND 60W- 67W)
PART 2 GENERAL SYNOPSIS AT 21:00UTC
SEA ICE AND ICEBERGS REPORT 271400 UTC
1.SEA ICE LIMIT
6133S 02000W 6054S 02325W 6114S 03114W 5916S 03443W 6107S 04321W 6220S 04748W
6054S 05120W 6224S 05801W 6342S 05951W 6348S 06017W 6444S 06422W 6637S 06717W
2.ICEBERGS GREATER THAN 10MN
A23A 5303S 04027W 32X24NM
A74A 5902S 02210W 27X13NM
A77 5034S 03702W 27X4NM
A76C 6001S 03711W 16X7NM
B15AB 5812S 04147W 10X4NM
3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 5206S 04329W 9X2NM
ICEBERG2 5322S 03916W 7X3NM
ICEBERG3 5159S 04047W 2X2NM
ICEBERG4 5135S 03459W 2X1NM
ICEBERG5 5240S 03701W 3X1NM
ICEBERG6 5311S 04024W 4X1NM
ICEBERG7 5217S 04019W 2X1NM
ICEBERG8 5352S 04121W 4X1NM
ICEBERG9 4938S 03845W 5X4NM
ICEBERG10 5014S 03427W 8X2NM
ICEBERG11 5227S 03900W 4X2NM
ICEBERG12 5003S 02941W 2X1NM
ICEBERG13 5311S 04017W 4X2NM
ICEBERG14 5243S 04013W 4X1NM
ICEBERG15 5250S 03933W 3X2NM
ICEBERG16 5301S 03939W 2X1NM
ICEBERG17 5152S 04143W 9X3NM
ICEBERG18 5258S 03930W 2X1NM
ICEBERG19 5231S 04026W 2X1NM
ICEBERG20 5041S 03741W 4X1NM
ICEBERG21 5300S 03944W 2X1NM
ICEBERG22 6048S 04529W 3X3NM
ICEBERG23 6140S 04657W 4X3NM
ICEBERG24 6054S 05223W 7X2NM
ICEBERG25 4935S 03845W 2X1NM
ICEBERG26 4932S 03741W 3X1NM
ICEBERG27 4944S 03902W 3X1NM
ICEBERG28 5017S 03714W 4X1NM
ICEBERG29 5018S 03708W 3X1NM
ICEBERG30 5305S 03930W 2X1NM
ICEBERG31 5747S 04052W 4X1NM
4.ICEBERGS AREA
A 6200S 02000W 4510S 02000W 4500S 04010W 6127S 04000W
B 6127S 04000W 4815S 04000W 5357S 05020W 6238S 04710W
C 6238S 06710W 5658S 04919W 6248S 06716W 6818S 06716W
HIGH 1011HPA MAR DEL PLATA COASTS MOV NE WKN EXP 36S 53W BY 28/2100
CFNT AT 42S 38W 41S 40W 37S 45W MOV E
LOW 959HPA 58S 45W MOV N WKN EXP 52S 46W BY 28/2100
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-12-29
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 4 VIS GOOD
OUTER RIO DE LA PLATA: SE 4 WITH GUSTS BACK NE 3 BY 28/1500 VIS GOOD
URUGUAY SOUTH EAST COASTS: SE 4 WITH GUSTS VIS GOOD
MAR DEL PLATA COASTS(36º17S - 38º30S): SECTOR S 4 DECR VRB 3 BY 28/1200 VIS
GOOD
RINCON BAHIA BLANCA COASTS(38º30S - 41ºS): SECTOR N 4 BACK SECTOR S BY 28/1500
VIS GOOD
PENINSULA DE VALDES COASTS(41ºS - 45ºS): SECTOR W 4/5 BACK SECTOR S 5 WITH GUSTS
BY 28/1200 VIS GOOD
GOLFO DE SAN JORGE COASTS(45ºS - 48ºS): SECTOR W 5 WITH GUSTS BACK SW 6/5 WITH
GUSTS BY 28/0900 VIS MODERATE
SOUTH PATAGONIA COASTS(48ºS - 54ºS): SW 7/6 GUST WITH 8 INTENSITY DECR 4 BY
28/2100 PROB OF ISOL RAIN VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54ºS - 55ºS): SW 7/8 WITH GUSTS PROB OF SH IMPR STARTING
EVENING VIS POOR TO MODERATE
ISLAS MALVINAS COASTS: SW 7/8 WITH GUSTS PROB OF SH IMPR STARTING EVENING VIS
POOR TO MODERATE.
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 6 WITH GUSTS PROB OF RAIN
STARTING NOON VIS MODERATE TO POOR
W OF 30 - E OF 40W: NW 6/5 WITH GUSTS BACK W 5 BY 28/1800 PROB OF SH RAIN
STARTING EARLY MORNING VIS MODERATE TO POOR
REST OF THE AREA: SECTOR S 4 VEER SECTOR W 4/5 BY 28/1200 PROB OF SH RAIN IMPR
STARTING EARLY MORNING VIS MODERATE TO GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 8 WITH GUSTS BACK
SECTOR W 7 GUST WITH 8 INTENSITY BY 28/1800 PROB OF SH RAIN VIS POOR OCNL VERY
POOR
REST OF THE AREA: SECTOR N 8 WITH GUSTS BACK SECTOR W 7 GUST WITH 8 INTENSITY
BY 28/0900 PROB OF SH RAIN VIS VERY POOR TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 5/6 WITH GUSTS PROB
OF SH STARTING EARLY MORNING VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 7/8 WITH GUSTS PROB OF SH RAIN VIS VERY POOR TO
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR N 6 WITH
GUSTS BACK SECTOR W 7/8 WITH GUSTS BY 28/0900 PROB OF SH RAIN AND SNOW MIXTURE
VIS VERY POOR TO POOR
S OF 55S: SECTOR W 8/6 WITH GUSTS SH OF SNOW VIS POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS PROB OF SH OF SNOW VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: SECTOR W 6/7 GUST
WITH 8 INTENSITY BACK SW 8 WITH GUSTS BY 28/1500 PROB OF SH RAIN AND SNOW
MIXTURE VIS VERY POOR TO POOR
E OF 50 - S OF 55S: SECTOR W 6 WITH GUSTS VEER SECTOR E WITH GUSTS BY 28/1800
PROB OF SNOW FALL VIS POOR
REST OF THE AREA: SW 8/9 WITH GUSTS PROB OF RAIN SNOW FALL VIS VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 7/8 WITH GUSTS DECR 5 BY 28/1800 PROB OF
ISOL SNOW FALL IMPR DURING THE MORNING VIS POOR TO MODERATE
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