289
WWST02 SABM 291200
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-12-29, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 513: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 40S-50S AND 30W-20W FROM 29/2100
WARNING 512: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 40S-50S AND 50W-30W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
281400 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 5302S 04019W 32X24NM
A74A 5845S 02157W 27X13NM A77 5031S 03701W 27X4NM A76C 6001S 03712W 16X7NM B15AB
5806S 04135W 10X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5150S 04338W 9X2NM
ICEBERG2 5322S 03916W 7X3NM ICEBERG3 5153S 04042W 2X2NM ICEBERG4 5233S 03708W
3X1NM ICEBERG5 5316S 04006W 4X1NM ICEBERG6 5222S 04013W 2X1NM ICEBERG7 5351S
04121W 4X1NM ICEBERG8 4940S 03844W 5X4NM ICEBERG9 5020S 03352W 4X2NM ICEBERG10
5312S 03928W 4X2NM ICEBERG11 4958S 02947W 2X1NM ICEBERG12 5310S 03959W 4X2NM
ICEBERG13 5251S 04024W 4X1NM ICEBERG14 5252S 03937W 3X2NM ICEBERG15 5254S 03920W
2X1NM ICEBERG16 5128S 04106W 9X3NM ICEBERG17 5256S 03923W 2X1NM ICEBERG18 5237S
04041W 2X1NM ICEBERG19 5042S 03803W 4X1NM ICEBERG20 5300S 03928W 2X1NM ICEBERG21
6048S 04529W 3X3NM ICEBERG22 6140S 04650W 4X3NM ICEBERG23 6054S 05223W 7X2NM
ICEBERG24 4938S 03909W 2X1NM ICEBERG25 4942S 03722W 3X1NM ICEBERG26 4944S 03903W
3X1NM ICEBERG27 5044S 03659W 4X1NM ICEBERG28 5029S 03624W 3X1NM ICEBERG29 5302S
03923W 2X1NM ICEBERG30 5744S 04007W 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 36S 53W MOV E WKN EXTENDS RIDGE AT 36S 53W 47S 58W 60S 60W
LOW 966HPA 48S 37W MOV SE DPN EXTENDS OFNT AT 48S 37W 54S 48W 46S 42W
LOW 972HPA 54S 24W MOV SE DPN EXTENDS CFNT AT 54S 24W 45S 27W 37S 48W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-12-30
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 BACK SECTOR N 4 FOG MIST DISSIPATING VIS MODERATE
TO GOOD
OUTER RIO DE LA PLATA: VRB 3 BACK SECTOR N 4/5 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 3 BACK SECTOR N 5/6 WITH GUSTS VIS GOOD
MAR DEL PLATA COASTS(36º17S - 38º30S): SECTOR S 3 BACK SECTOR N 5 WITH GUSTS BY
29/1800 VIS GOOD
RINCON BAHIA BLANCA COASTS(38º30S - 41ºS): SECTOR N 5 WITH GUSTS BACK VRB 4 VIS
GOOD
PENINSULA DE VALDES COASTS(41ºS - 45ºS): SECTOR N 5 WITH GUSTS BACK SECTOR W BY
30/0900 VIS GOOD
GOLFO DE SAN JORGE COASTS(45ºS - 48ºS): SECTOR N 5 WITH GUSTS BACK SECTOR W WITH
GUSTS BY 30/0900 VIS GOOD
SOUTH PATAGONIA COASTS(48ºS - 54ºS): SECTOR N 4 VIS GOOD
FIN DEL MUNDO COASTS(54ºS - 55ºS): SECTOR N 4/5 WITH GUSTS TEMPO BACK SECTOR W
WITH GUSTS PROB OF RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR N 4 PROB OF RAIN SPELLS OF GOOD WEATHER VIS GOOD
OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W): SECTOR W 6/7 WITH GUSTS PROB OF ISOL RAIN
VIS POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SECTOR W 8 WITH GUSTS DECR 6/7 WITH
GUSTS BY 30/0900 PROB OF SH RAIN VIS VERY POOR TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR W 8 WITH GUSTS BACK SW 6/7
WITH GUSTS BY 29/2100 BACK SECTOR N 5 WITH GUSTS PROB OF SH RAIN VIS POOR OCNL
VERY POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): VRB 3/4 BACK SECTOR S 5/6 WITH GUSTS BY
29/1800 PROB OF ISOL SNOW FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR S 5/6 WITH GUSTS VEER SECTOR N 5
WITH GUSTS BY 30/0900 PROB OF ISOL SH RAIN VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 5/6 WITH GUSTS DECR VRB 4 BY
30/0600 PROB OF RAIN VIS MODERATE OCNL POOR
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