1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 20, JANUARY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
34/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-64S 70W-55W UNTIL 20/1500
35/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH GUST IN 60S-64S 90W-80W FROM 20/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 965HPA 64S 77W MOV SE DPN EXTENDS CFNT AT 60S 70W 61S 64W 63S 63W
RIDGE 73S 53W 66S 48W 60S 50W MOV E WKN
LOW 966HPA 66S 78W MOV E WKN
191400 UTC 1.SEA ICE LIMIT 6635S 01955W 6137S 02057W 6056S 02339W 6214S 03041W 6204S 03518W 6146S 03910W 6132S 04010W 6219S 04452W 6059S 04840W 6045S 05157W 6336S 06030W 6559S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5233S 04134W 26X22NM A23J 5243S 04150W 11X8NM A74A 5811S 02018W 23X13NM A77 4951S 02735W 27X4NM A76C 6023S 03802W 16X7NM B15AB 5846S 03808W 10X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4915S 03756W 7X2NM ICEBERG2 5226S 03917W 7X3NM ICEBERG3 5131S 03751W 3X1NM ICEBERG4 5227S 03912W 4X1NM ICEBERG5 5352S 04121W 4X1NM ICEBERG6 5100S 03714W 5X4NM ICEBERG7 5029S 03021W 3X1NM ICEBERG8 5030S 03618W 4X1NM ICEBERG9 5226S 04030W 2X1NM ICEBERG10 6044S 04527W 3X3NM ICEBERG11 6123S 04618W 4X3NM ICEBERG12 5919S 05022W 7X2NM ICEBERG13 5041S 03732W 2X1NM ICEBERG14 5126S 03948W 9X3NM ICEBERG15 5222S 04021W 4X1NM ICEBERG16 5143S 03613W 2X1NM ICEBERG17 5723S 03347W 5X1NM ICEBERG18 5220S 03915W 3X1NM ICEBERG19 5213S 04035W 4X1NM ICEBERG20 5217S 04040W 2X1NM ICEBERG21 5049S 03846W 3X1NM ICEBERG22 5121S 04042W 5X2NM ICEBERG23 5953S 03406W 5X2NM ICEBERG24 5240S 04143W 8X3NM ICEBERG25 5246S 04122W 4X2NM ICEBERG26 4940S 02718W 4X1NM ICEBERG27 5244S 04159W 3X1NM ICEBERG28 5223S 04140W 3X1NM 4.ICEBERGS AREA A 6700S 02000W 4450S 02000W 4500S 04000W 6150S 03932W B 6150S 03932W 4820S 04000W 5730S 04900W 6120S 04845W C 6120S 04845W 5730S 04900W 6125S 06716W 6600S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-01-21
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 55W: NW 7 GUST WITH 8 INTENSITY DECR SECTOR W 5 BY 20/1500 PROB OF MIST PROB OFMOD RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 5/6 WITH GUSTS VEER NW 7 WITH GUSTS BY 20/1800 PROB OF MIST WORSENING TOWARDS NIGTH VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: NW 6 WITH GUSTS INCR 7 AFTERWARDS SECTOR W 6/5 BY 20/1500 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE IMPR STARTING EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 5/6 WITH GUSTS DECR 5 BY 21/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING DURING THE EVENING VIS MODERATE TO POOR
GERLACHE STRAIT : NE 5/6 WITH GUSTS BACK NW 4 BY 20/2100 PROB OF FOG MIST TEMPORARILY DISSIPATING PROB OFMOD RAIN AND SNOW MIXTURE IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL VERY POOR
MARGARITA BAY : SECTOR E 4/5 WITH GUSTS PROB OF MIST IMPR STARTING NIGTH VIS MODERATE OCNL GOOD
EREBUS Y TERROR GULF W OF 55W: NE 4/5 VEER SECTOR E 6/7 WITH GUSTS BY 20/1800 AFTERWARDS NW 7 WITH GUSTS BY 21/0300 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER DURING THE NOON VIS POOR TO MODERATE OCNL VERY POOR
EREBUS Y TERROR GULF REST OF THE AREA: VRB 3 INCR NE 5/6 BY 21/0000 AFTERWARDS SECTOR E 6/7 WITH GUSTS BY 21/0600 PROB OF MIST FOG PATCHES PROB OFINTERMITTENT RAIN AND SNOW MIXTURE VIS MODERATE TO VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 5/6 INCR 8 WITH GUSTS BY 20/1800 PROB OF MIST PROB OFSCT SH SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: VRB 3 INCR SECTOR W 4 BY 21/0300 PROB OF SCT SH MIST IMPR TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 5/4 DECR VRB 3 BY 20/2100 PROB OF MIST FOG PATCHES WORSENING DURING THE NIGTH VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA W OF 40 - N OF 64S: SECTOR W 5/6 VEER NW 7/8 GUST WITH 9 INTENSITY BY 21/0000 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EVENING VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA E OF 40 - N OF 64S: SECTOR W 4/5 VEER NW 7/8 GUST WITH 9 INTENSITY BY 21/0600 PROB OF MIST PROB OFINTERMITTENT RAIN AND SNOW MIXTURE WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA REST OF THE AREA: VRB 3 INCR NE 4/5 BY 21/0000 VIS GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SECTOR S BY 21/0000 PROB OF ISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 20, JANUARY 2026.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 32: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) UNTIL 21/0900
WARNING 33: LOW 1005HPA AT 36S 37W MOV SE DEEPENING EXPECTED 42S 35W BY 21/1200
PROVOKES WINDS FORCE 8 AROUND ITSELF WITH GUST BETWEEN 35S-45S AND 30W-40W
WARNING 34: STRONG BARIC GRADIENT MOV E PROVOKES WINDS FORCE 8 WITH GUST BETWEEN
50S-55S AND 20W-25W UNTIL 20/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 1005HPA 36S 37W MOV SE DPN EXP 42S 35W BY 21/1200 EXTENDS OFNT AT 36S 37W
37S 39W 25S 39W MOV E EXP 42S 33W 43S 37W 43S 37W 40S 35W BY 21/1200
LOW 1008HPA 49S 55W MOV E WKN EXTENDS CFNT49S 55W 48S 56W 47S 59W MOV E
HIGH 1029HPA 44S 21W MOV E EXTENDS RIDGE44S 21W 44S 33W 37S 56W MOV E
LOW 1008HPA 43S 65W MOV E WKN
191400 UTC 1.SEA ICE LIMIT 6635S 01955W 6137S 02057W 6056S 02339W 6214S 03041W
6204S 03518W 6146S 03910W 6132S 04010W 6219S 04452W 6059S 04840W 6045S 05157W
6336S 06030W 6559S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5233S 04134W 26X22NM
A23J 5243S 04150W 11X8NM A74A 5811S 02018W 23X13NM A77 4951S 02735W 27X4NM A76C
6023S 03802W 16X7NM B15AB 5846S 03808W 10X4NM 3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 4915S 03756W 7X2NM ICEBERG2 5226S 03917W 7X3NM ICEBERG3 5131S 03751W
3X1NM ICEBERG4 5227S 03912W 4X1NM ICEBERG5 5352S 04121W 4X1NM ICEBERG6 5100S
03714W 5X4NM ICEBERG7 5029S 03021W 3X1NM ICEBERG8 5030S 03618W 4X1NM ICEBERG9
5226S 04030W 2X1NM ICEBERG10 6044S 04527W 3X3NM ICEBERG11 6123S 04618W 4X3NM
ICEBERG12 5919S 05022W 7X2NM ICEBERG13 5041S 03732W 2X1NM ICEBERG14 5126S 03948W
9X3NM ICEBERG15 5222S 04021W 4X1NM ICEBERG16 5143S 03613W 2X1NM ICEBERG17 5723S
03347W 5X1NM ICEBERG18 5220S 03915W 3X1NM ICEBERG19 5213S 04035W 4X1NM ICEBERG20
5217S 04040W 2X1NM ICEBERG21 5049S 03846W 3X1NM ICEBERG22 5121S 04042W 5X2NM
ICEBERG23 5953S 03406W 5X2NM ICEBERG24 5240S 04143W 8X3NM ICEBERG25 5246S 04122W
4X2NM ICEBERG26 4940S 02718W 4X1NM ICEBERG27 5244S 04159W 3X1NM ICEBERG28 5223S
04140W 3X1NM 4.ICEBERGS AREA A 6700S 02000W 4450S 02000W 4500S 04000W 6150S
03932W B 6150S 03932W 4820S 04000W 5730S 04900W 6120S 04845W C 6120S 04845W
5730S 04900W 6125S 06716W 6600S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-01-21
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3 TEMPO VEER SECTOR E 5/4 WITH GUSTS VIS GOOD
OUTER RIO DE LA PLATA: SECTOR N 3 VEER SECTOR E 3/5 BACK N 4 PROB OF ISOL RAIN
STARTING EARLY MORNING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR E 3 BACK N 3 PROB OF ISOL RAIN TOWARDS MORNING
VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NW 3 VEER NE 4 BACK N 5/4 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 3/5 WITH GUSTS VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 4/6 WITH GUSTS PROB OF ISOL
RAIN TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): E 3/4 BACK N 5/4 BACK SECTOR S 5/6 WITH
GUSTS PROB OF ISOL SH RAIN TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): NW 3/5 WITH GUSTS BACK SECTOR S 5/6 WITH
GUSTS PROB OF RAIN SPELLS OF GOOD WEATHER STARTING NIGTH VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): NW 6 WITH GUSTS BACK SECTOR W 3/5 WITH GUSTS
PROB OF ISOL RAIN STARTING EARLY MORNING VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: NW 3/6 WITH GUSTS BACK SECTOR S 5 WITH GUSTS FOG MIST
DISSIPATING PROB OF RAIN STARTING EARLY MORNING VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 3/6 WITH GUSTS PROB OF SH
STORMS ISOL RAIN NEXT IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL
POOR
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR N 6/8 WITH GUSTS BACK SECTOR
W 8 WITH GUSTS PROB OF RAIN STORMS VIS POOR OCNL VERY POOR
NORTH AREA (35S- 40S AND 20W- 55W) E OF 50W: SECTOR S 5/4 WITH GUSTS VEER SW 3
PROB OF ISOL RAIN NEXT IMPR DURING THE EARLY MORNING VIS GOOD
NORTH AREA (35S- 40S AND 20W- 55W) REST OF THE AREA: SECTOR E 3 BACK N 3 PROB OF
ISOL RAIN VIS GOOD OCNL MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: E 5/6 WITH GUSTS
BACK N 5/6 WITH GUSTS PROB OF RAIN STORMS VIS MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) W OF 30 - N OF 45S: SE 6/8 WITH GUSTS
VEER W WITH GUSTS VEER N WITH GUSTS PROB OF RAIN STORMS SPELLS OF GOOD WEATHER
VIS POOR OCNL VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) REST OF THE AREA: NW 5/3 VEER SECTOR E
3/6 WITH GUSTS PROB OF HVY RAIN STARTING EARLY MORNING VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR S 3/4 VEER
SECTOR W 3/4 PROB OF ISOL RAIN VIS MODERATE OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) W OF 50 - N OF 45S: NW 4/5 WITH GUSTS
VIS GOOD OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - S OF 45S: NW 5/3 WITH GUSTS
PROB OF ISOL RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) REST OF THE AREA: NW 5/3 VEER N 3 SCT
MIST PROB OF SH RAIN TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55 - E OF 25W: NW 8 BACK W 6/3 BY
20/1800 PROB OF ISOL RAIN IMPR STARTING EARLY MORNING VIS POOR OCNL VERY POOR TO
GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) S OF 55 - E OF 25W: W 5/6 WITH GUSTS
PROB OF RAIN AND SNOW MIXTURE IMPR STARTING EARLY MORNING VIS MODERATE OCNL
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) REST OF THE AREA: SECTOR W 6/5 WITH
GUSTS VEER NW 5/6 PROB OF ISOL RAIN VIS MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 45S: W 3 VEER NW 4/6 WITH GUSTS
PROB OF RAIN STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) REST OF THE AREA: W 5 WITH GUSTS VEER NW
6 WITH GUSTS PROB OF RAIN TEMPORARILY DISSIPATING VIS MODERATE OCNL POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8 WITH GUSTS DECR SECTOR W 6/7 BY
21/0900 PROB OF RAIN SPELLS OF GOOD WEATHER VIS POOR OCNL VERY POOR
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