1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-12-22, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 21:00UTC
211400 UTC 1.SEA ICE LIMIT 6014S 02000W 6045S 02459W 6012S 03114W 5936S 03936W
6026S 04547W 6217S 04820W 6107S 05236W 6237S 05841W 6357S 06233W 6502S 06425W
6527S 06549W 6617S 06717W 2.ICEBERGS GREATER THAN 10NM A23A 5301S 04009W 32X24NM
A74A 5911S 02306W 27X13NM A77 4918S 03821W 27X4NM A76C 5943S 03714W 16X7NM B15AB
5724S 04304W 10X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5308S 04129W 9X2NM
ICEBERG2 5330S 03912W 7X3NM ICEBERG3 5206S 04118W 2X2NM ICEBERG4 5139S 03514W
2X1NM ICEBERG5 5247S 03720W 3X1NM ICEBERG6 5308S 04030W 4X1NM ICEBERG7 5050S
03443W 3X1NM ICEBERG8 5221S 04035W 2X1NM ICEBERG9 5351S 04122W 4X1NM ICEBERG10
5010S 03920W 5X4NM ICEBERG11 5009S 03453W 8X2NM ICEBERG12 5231S 03931W 4X2NM
ICEBERG13 4952S 02945W 2X1NM ICEBERG14 5308S 04026W 4X2NM ICEBERG15 5242S 04014W
4X1NM ICEBERG16 5252S 03931W 3X2NM ICEBERG17 5256S 03952W 2X1NM ICEBERG18 5233S
03938W 2X2NM ICEBERG19 5221S 04208W 9X3NM ICEBERG20 5302S 03945W 2X1NM ICEBERG21
5212S 04027W 2X1NM ICEBERG22 4944S 03722W 4X1NM ICEBERG23 5251S 03942W 2X1NM
ICEBERG24 6048S 04529W 3X3NM ICEBERG25 6137S 04724W 4X3NM ICEBERG26 6103S 05143W
7X2NM ICEBERG27 4939S 03826W 2X1NM ICEBERG28 4937S 03807W 3X1NM ICEBERG29 5001S
03854W 3X1NM ICEBERG30 5017S 03707W 3X1NM 4.ICEBERGS AREA A 6000S 02000W 4400S
02000W 4400S 03400W 6000S 03500W B 6000S 03500W 4400S 03400W 4800S 04100W 4100S
06100W C 4100S 06120W 4800S 04100W 6300S 06716W 6700S 06716W
STATIONARY FRONT MAR DEL PLATA COASTS
CFNT AT 46S 54W 44S 25W 40S 55W MOV E
CFNT AT 58S 54W 56S 53W 52S 53W MOV E
RIDGE 36S 39W 36S 45W 38S 48W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-12-23
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 5/4 LOW PROB OF ISOL STORMS IMPR DURING THE
MORNING VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SE 5 WITH GUSTS BACK E 6 WITH GUSTS BY 22/2300 LOW PROB
OF ISOL STORMS IMPR DURING THE MORNING VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SECTOR E 5/4 VEER SECTOR S BY 22/1500 PROB OF ISOL
RAIN STORMS IMPR DURING THE EVENING VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR E 4 BACK SECTOR N 5 WITH GUSTS BY
22/0600 LOW PROB OF ISOL STORMS IMPR DURING THE EARLY MORNING VIS MODERATE TO
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4 BACK SECTOR N 5/6 WITH
GUSTS BY 22/0300 LOW PROB OF ISOL SH TOWARDS THE END OF THE PERIOD VIS GOOD TO
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 WITH GUSTS BACK SECTOR W
BY 22/0600 TEMPO VEER SECTOR N BY 22/2100 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6 WITH GUSTS BACK SECTOR W BY
22/0300 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S) N OF 51S: SECTOR N 6/7 GUST WITH 8 INTENSITY
BACK SECTOR W 6 WITH GUSTS BY 22/1200 BACK SECTOR S BY 22/2100 LOW PROB OF ISOL
RAIN STARTING EVENING VIS POOR OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR W 7 GUST WITH 8
INTENSITY VEER SECTOR N BY 22/0300 BACK SECTOR W BY 22/0900 LOW PROB OF ISOL
RAIN STARTING EARLY MORNING SPELLS OF GOOD WEATHER VIS POOR OCNL VERY POOR TO
MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 7/6 GUST WITH 8 INTENSITY PROB OF
ISOL RAIN STARTING EARLY MORNING VIS POOR OCNL VERY POOR TO MODERATE
ISLAS MALVINAS COASTS: SECTOR W 6 WITH GUSTS VEER SECTOR N 7 GUST WITH 8
INTENSITY BY 22/0600 BACK SECTOR W 6/5 WITH GUSTS BY 22/1800 LOW PROB OF ISOL
RAIN STARTING EARLY MORNING VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 45W: SECTOR N 5/6 WITH GUSTS PROB OF
ISOL RAIN STORMS VIS MODERATE OCNL POOR
REST OF THE AREA: VRB 4/3 INCR SECTOR E 5 WITH GUSTS BY 22/2100 PROB OF ISOL
RAIN STORMS STARTING EARLY MORNING IMPR DURING THE EVENING VIS GOOD OCNL
MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR N 6/7 GUST WITH 8
INTENSITY BACK SECTOR W BY 22/2100 PROB OF RAIN VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR N 7 GUST WITH 8 INTENSITY BACK SECTOR W 6 WITH GUSTS
BY 22/0900 PROB OF ISOL RAIN STORMS VIS POOR OCNL VERY POOR TO MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: NW 6 WITH GUSTS BACK W BY
22/0600 VEER SECTOR N BY 22/2300 LOW PROB OF ISOL SH RAIN VIS MODERATE
REST OF THE AREA: SECTOR W 6 WITH GUSTS VEER SECTOR N BY 22/0900 LOW PROB OF
ISOL RAIN IMPR DURING THE EARLY MORNING VIS MODERATE OCNL GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 6/5 WITH GUSTS BACK
SECTOR W BY 22/2100 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE
REST OF THE AREA: SECTOR N 5 WITH GUSTS BACK SECTOR W BY 22/0900 VEER NW BY
22/2300 PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL
GOOD
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: NW 5 WITH GUSTS BACK W BY
22/0300 VEER NW 6/7 GUST WITH 8 INTENSITY BY 22/1500 PROB OF RAIN SPELLS OF GOOD
WEATHER VIS MODERATE TO POOR
REST OF THE AREA: W 6 WITH GUSTS VEER NW 7 GUST WITH 8 INTENSITY BY 22/0600
BACK W 6 BY 22/2300 PROB OF RAIN SPELLS OF GOOD WEATHER VIS POOR OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): NW 7 GUST WITH 8 INTENSITY BACK W 6 WITH
GUSTS BY 22/1200 PROB OF RAIN NEXT ISOL RAIN VIS POOR OCNL MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 22, DECEMBER 2025.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1
NO WARNINGS
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 963HPA 60S 75W MOV E DPN
LOW 976HPA 64S 60W EXTENDS CFNT AT 62S 60W 61S 55W 60S 50W
LOW 974HPA 70S 85W MOV E DPN
211400 UTC 1.SEA ICE LIMIT 6014S 02000W 6045S 02459W 6012S 03114W 5936S 03936W 6026S 04547W 6217S 04820W 6107S 05236W 6237S 05841W 6357S 06233W 6502S 06425W 6527S 06549W 6617S 06717W 2.ICEBERGS GREATER THAN 10NM A23A 5301S 04009W 32X24NM A74A 5911S 02306W 27X13NM A77 4918S 03821W 27X4NM A76C 5943S 03714W 16X7NM B15AB 5724S 04304W 10X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5308S 04129W 9X2NM ICEBERG2 5330S 03912W 7X3NM ICEBERG3 5206S 04118W 2X2NM ICEBERG4 5139S 03514W 2X1NM ICEBERG5 5247S 03720W 3X1NM ICEBERG6 5308S 04030W 4X1NM ICEBERG7 5050S 03443W 3X1NM ICEBERG8 5221S 04035W 2X1NM ICEBERG9 5351S 04122W 4X1NM ICEBERG10 5010S 03920W 5X4NM ICEBERG11 5009S 03453W 8X2NM ICEBERG12 5231S 03931W 4X2NM ICEBERG13 4952S 02945W 2X1NM ICEBERG14 5308S 04026W 4X2NM ICEBERG15 5242S 04014W 4X1NM ICEBERG16 5252S 03931W 3X2NM ICEBERG17 5256S 03952W 2X1NM ICEBERG18 5233S 03938W 2X2NM ICEBERG19 5221S 04208W 9X3NM ICEBERG20 5302S 03945W 2X1NM ICEBERG21 5212S 04027W 2X1NM ICEBERG22 4944S 03722W 4X1NM ICEBERG23 5251S 03942W 2X1NM ICEBERG24 6048S 04529W 3X3NM ICEBERG25 6137S 04724W 4X3NM ICEBERG26 6103S 05143W 7X2NM ICEBERG27 4939S 03826W 2X1NM ICEBERG28 4937S 03807W 3X1NM ICEBERG29 5001S 03854W 3X1NM ICEBERG30 5017S 03707W 3X1NM 4.ICEBERGS AREA A 6000S 02000W 4400S 02000W 4400S 03400W 6000S 03500W B 6000S 03500W 4400S 03400W 4800S 04100W 4100S 06100W C 4100S 06120W 4800S 04100W 6300S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-12-23
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR N 3/4 BACK SECTOR W 4 BY 22/1200 PROB OF ISOL SNOW FALL PROB OF MIST FOG PATCHES VIS MODERATE TO POOR OCNL VERY POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR N 3/4 PROB OF ISOL SNOW FALL PROB OF MIST FOG PATCHES VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR E 4/5 PROB OF ISOL SNOW FALL PROB OF MIST VIS MODERATE TO POOR OCNL VERY POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR E 3/4 PROB OF ISOL SNOW FALL PROB OF MIST FOG PATCHES VIS MODERATE TO POOR OCNL VERY POOR
GERLACHE STRAIT : SECTOR E 5/6 VIS GOOD
MARGARITA BAY : SECTOR E 5/6 VIS GOOD
EREBUS Y TERROR GULF : SECTOR S 3/4 PROB OF ISOL SNOW FALL PROB OF MIST FOG PATCHES VIS MODERATE TO POOR OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA (60-66S 70-90W): SECTOR S 3/4 PROB OF ISOL SNOW FALL PROB OF MIST VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 3/4 PROB OF ISOL SNOW FALL PROB OF MIST VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA (60-68S 20-50W): SECTOR N 3/5 PROB OF MIST FOG PATCHES PROB OFISOL SNOW FALL VIS MODERATE TO POOR OCNL VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 PROB OF ISOL SNOW FALL PROB OF MIST VIS GOOD TO MODERATE OCNL POOR=