1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 24, NOVEMBER 2025.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1369/2025 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR S IN 60S-64S 50W-60W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 972HPA 61S 55W MOV E DPN EXTENDS CFNT AT 61S 55W 60S 48W
LOW 978HPA 63S 70W MOV SE WKN
231400 UTC 1.SEA ICE LIMIT 5859S 02013W 5735S 02319W 5755S 02710W 5810S 03116W 5914S 03716W 5942S 04054W 5941S 04513W 5906S 05006W 6106S 05412W 6232S 05803W 6331S 06029W 6555S 06700W 2.ICEBERGS GREATER THAN 10NM A23A 5234S 04032W 32X24NM A74A 5412S 02652W 27X17NM A77 5356S 04131W 27X4NM A76C 5941S 03834W 16X7NM B15AB 5807S 04626W 11X4NM A23G 5302S 03834W 11X3NM 3.ICEBERGS SMALLER THAN 10NM A23I 5022S 03847W 9X6NM A23J 5133S 03710W 8X2NM ICEBERG1 5104S 03433W 3X1NM ICEBERG2 5554S 04223W 9X2NM ICEBERG3 5154S 03409W 3X1NM ICEBERG4 5248S 03851W 7X3NM ICEBERG5 4925S 02305W 4X2NM ICEBERG6 5223S 03747W 2X1NM ICEBERG7 6048S 04529W 3X2NM ICEBERG8 5110S 03802W 6X2NM ICEBERG9 5206S 03847W 3X3NM ICEBERG10 5255S 04126W 2X2NM ICEBERG11 5322S 03814W 3X3NM ICEBERG12 5133S 03723W 2X1NM ICEBERG13 5130S 03910W 4X2NM ICEBERG14 4957S 02452W 2X1NM ICEBERG15 5306S 03744W 3X1NM ICEBERG16 5247S 03959W 4X1NM ICEBERG17 5758S 04525W 3X1NM ICEBERG18 5258S 04116W 2X1NM ICEBERG19 5009S 03855W 2X1NM ICEBERG20 5003S 03905W 2X1NM ICEBERG21 5257S 04125W 2X1NM ICEBERG22 5304S 04105W 2X1NM ICEBERG23 5248S 04112W 3X1NM ICEBERG24 5404S 04031W 2X1NM ICEBERG25 5253S 04121W 2X1NM ICEBERG26 5300S 04130W 2X2NM ICEBERG27 5059S 02147W 3X1NM ICEBERG28 4938S 02837W 3X1NM 4.ICEBERGS AREA A 5938S 02000W 4600S 02000W 4600S 03100W 5800S 03100W B 5800S 03100W 4600S 03100W 4700S 03800W 5900S 03800W C 4700S 03800W 5900S 03800W 6200S 06716W 6600S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-11-25
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 3/4 PROB OF SNOW FALL PROB OF MIST FOG PATCHES VIS MODERATE TO POOR OCNL VERY POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 8 PROB OF SNOW FALL PROB OF MIST FOG PATCHES VIS MODERATE TO POOR OCNL VERY POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3/4 PROB OF SNOW FALL PROB OF MIST VIS GOOD TO MODERATE OCNL POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 8 PROB OF SNOW FALL PROB OF MIST FOG PATCHES VIS MODERATE TO POOR OCNL POOR
GERLACHE STRAIT : SECTOR E 3/4 VIS GOOD
MARGARITA BAY : SECTOR E 3/4 VIS GOOD
EREBUS Y TERROR GULF : SECTOR S 8 PROB OF SNOW FALL PROB OF MIST FOG PATCHES VIS MODERATE TO POOR OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA (60-66S 70-90W): SECTOR E 3/4 PROB OF MIST FOG PATCHES PROB OFISOL SNOW FALL VIS MODERATE TO POOR OCNL VERY POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR E 3/4 PROB OF MIST PROB OFISOL SNOW FALL VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA (60-68S 20-50W): SECTOR W 3/4 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 MIST PROB OFISOL SNOW FALL VIS GOOD TO MODERATE OCNL POOR=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-11-24, 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
LOW 978HPA 62S 55W MOV E EXTENDS CFNT AT 61S 51W 54S 48W 44S 59W MOV E
HIGH 1023HPA 36S 45W MOV E EXTENDS RIDGE AT 47S 36W 57S 33W
231400 UTC 1.SEA ICE LIMIT 5859S 02013W 5735S 02319W 5755S 02710W 5810S 03116W
5914S 03716W 5942S 04054W 5941S 04513W 5906S 05006W 6106S 05412W 6232S 05803W
6331S 06029W 6555S 06700W 2.ICEBERGS GREATER THAN 10NM A23A 5234S 04032W 32X24NM
A74A 5412S 02652W 27X17NM A77 5356S 04131W 27X4NM A76C 5941S 03834W 16X7NM B15AB
5807S 04626W 11X4NM A23G 5302S 03834W 11X3NM 3.ICEBERGS SMALLER THAN 10NM A23I
5022S 03847W 9X6NM A23J 5133S 03710W 8X2NM ICEBERG1 5104S 03433W 3X1NM ICEBERG2
5554S 04223W 9X2NM ICEBERG3 5154S 03409W 3X1NM ICEBERG4 5248S 03851W 7X3NM
ICEBERG5 4925S 02305W 4X2NM ICEBERG6 5223S 03747W 2X1NM ICEBERG7 6048S 04529W
3X2NM ICEBERG8 5110S 03802W 6X2NM ICEBERG9 5206S 03847W 3X3NM ICEBERG10 5255S
04126W 2X2NM ICEBERG11 5322S 03814W 3X3NM ICEBERG12 5133S 03723W 2X1NM ICEBERG13
5130S 03910W 4X2NM ICEBERG14 4957S 02452W 2X1NM ICEBERG15 5306S 03744W 3X1NM
ICEBERG16 5247S 03959W 4X1NM ICEBERG17 5758S 04525W 3X1NM ICEBERG18 5258S 04116W
2X1NM ICEBERG19 5009S 03855W 2X1NM ICEBERG20 5003S 03905W 2X1NM ICEBERG21 5257S
04125W 2X1NM ICEBERG22 5304S 04105W 2X1NM ICEBERG23 5248S 04112W 3X1NM ICEBERG24
5404S 04031W 2X1NM ICEBERG25 5253S 04121W 2X1NM ICEBERG26 5300S 04130W 2X2NM
ICEBERG27 5059S 02147W 3X1NM ICEBERG28 4938S 02837W 3X1NM 4.ICEBERGS AREA A
5938S 02000W 4600S 02000W 4600S 03100W 5800S 03100W B 5800S 03100W 4600S 03100W
4700S 03800W 5900S 03800W C 4700S 03800W 5900S 03800W 6200S 06716W 6600S
06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-11-25
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 3/4 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR N 5/4 VEER NE 4 BY 24/1800 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 4/5 WITH GUSTS VEER SECTOR E 4 BY 24/1800
VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5/6 WITH GUSTS DECR 5 WITH GUSTS
BY 24/1800 VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 5/7 WITH GUSTS DECR 5 WITH
GUSTS BY 24/1800 PROB OF SH TOWARDS NIGTH VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): NE 4/5 WITH GUSTS VEER SECTOR S 4/5 BY
24/1800 PROB OF SH STARTING EVENING VIS MODERATE TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 4/5 VEER SECTOR S 4/5 BY
24/1500 PROB OF SH STARTING EVENING IMPR VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 4/5 WITH GUSTS PROB OF RAIN NXT SH
IMPR TOWARDS NIGTH VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 4/5 WITH GUSTS PROB OF RAIN VIS
MODERATE
ISLAS MALVINAS COASTS: SECTOR W 5/6 WITH GUSTS PROB OF RAIN VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR S 4 VEER SECTOR W 3 BY
24/2100 PROB OF SH VIS MODERATE TO GOOD
E OF 45W: SECTOR W 4 VEER NW 4/5 BY 24/1800 UNSTABLE IMPR VIS GOOD
REST OF THE AREA: NW 5/6 WITH GUSTS VIS MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: W 4 VEER NW 6/7 GUST WITH 8
INTENSITY BY 24/1800 PROB OF SH NXT RAIN STARTING EVENING VIS MODERATE OCNL
POOR
W OF 30 - N OF 45S: NW 5 INCR 6/7 GUST WITH 8 INTENSITY BY 24/1200 PROB OF RAIN
VIS MODERATE OCNL POOR
REST OF THE AREA: NW 5 INCR 6/7 GUST WITH 8 INTENSITY BY 24/0900 BACK W 5/4 BY
24/2100 PROB OF RAIN VIS MODERATE TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: NW 6/7 GUST WITH 8
INTENSITY VEER 6 WITH GUSTS BY 24/1800 INCR PROB OF RAIN VIS POOR TO MODERATE
E OF 50 - S OF 45S: NW 6/7 WITH GUSTS VEER SECTOR W 5/4 BY 24/1500 PROB OF RAIN
SPELLS OF GOOD WEATHER VIS POOR TO MODERATE
W OF 50 - N OF 45S: NW 7/6 WITH GUSTS VEER SECTOR N 5/7 WITH GUSTS BY 24/1200
PROB OF SH STARTING EVENING VIS MODERATE OCNL POOR
REST OF THE AREA: SW 5/4 VEER SE 4/5 BY 24/1500 WORSENING WITH PROB OF RAIN VIS
MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: W 4 VEER SECTOR N 6/7 GUST
WITH 8 INTENSITY BY 24/1200 PROB OF RAIN STARTING EVENING VIS MODERATE TO POOR
REST OF THE AREA: SECTOR N 5/7 WITH GUSTS BACK SECTOR W 6/5 WITH GUSTS BY
24/1800 PROB OF RAIN SH STARTING EVENING VIS POOR TO MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR N 6 WITH GUSTS BACK
SECTOR W 6/5 WITH GUSTS BY 24/0300 PROB OF RAIN SH STARTING EARLY MORNING VIS
MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS PROB OF SH VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7/5 WITH GUSTS DECR 6/5 WITH GUSTS
BY 24/1200 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
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