1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-12-11, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 488: LOW 981HPA AT 35S 47W MOV SE DEEPENING EXPECTED 36S 46W BY 11/1200
PROVOKES WINDS FORCE 8 AROUND ITSELF WITH GUST BETWEEN 35S-40S AND 20W-50W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
SEA ICE AND ICEBERGS REPORT 101400 UTC
1.SEA ICE LIMIT
6000S 02000W 6018S 02013W 5946S 02759W 5636S 02538W 5728S 02924W 5803S 03403W
5927S 04120W 6009S 04759W 5854S 05008W 6056S 05459W 6249S 06019W 6619S 06716W
2.ICEBERGS GREATER THAN 10NM
A23A 5239S 03955W 32X24NM
A74A 5608S 02535W 27X13NM
A77 5135S 04137W 27X4NM
A76C 5923S 03731W 16X7NM
B15AB 5708S 04445W 10X4NM
3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 5330S 04044W 9X2NM
ICEBERG2 5257S 03919W 7X3NM
ICEBERG3 5234S 04115W 3X3NM
ICEBERG4 5132S 03452W 2X1NM
ICEBERG5 5130S 03758W 4X2NM
ICEBERG6 5238S 03659W 3X1NM
ICEBERG7 5256S 03950W 4X1NM
ICEBERG8 4937S 03508W 2X1NM
ICEBERG9 5032S 02156W 3X1NM
ICEBERG10 5216S 04144W 2X1NM
ICEBERG11 5348S 04208W 4X1NM
ICEBERG12 5031S 03849W 5X4NM
ICEBERG13 5118S 03518W 8X2NM
ICEBERG14 5218S 04056W 7X2NM
ICEBERG15 5241S 03938W 4X2NM
ICEBERG16 4942S 02915W 2X1NM
ICEBERG17 5212S 04005W 4X2NM
ICEBERG18 5229S 04006W 4X1NM
ICEBERG19 5227S 03959W 2X1NM
ICEBERG20 5206S 03943W 2X1NM
ICEBERG21 5235S 04016W 3X2NM
ICEBERG22 5237S 04013W 2X1NM
ICEBERG23 5211S 04001W 2X1NM
ICEBERG24 5215S 04000W 2X2NM
ICEBERG25 5321S 04014W 11X3NM
ICEBERG26 5249S 03912W 3X1NM
ICEBERG27 5241S 04013W 2X1NM
ICEBERG28 5235S 04033W 3X1NM
ICEBERG29 5036S 03854W 3X1NM
ICEBERG30 5027S 03852W 4X1NM
ICEBERG31 5254S 03953W 2X1NM
4.ICEBERGS AREA
A 4600S 02000W 6200S 02000W 4600S 04500W 6100S 04500W
B 5900S 06000W 6400S 06000W 5200S 04500W 6100S 04500W
C 5900S 06000W 6400S 06000W 6300S 06716W 6800S 06716W
LOW 981HPA 35S 47W MOV SE DPN EXP 36S 46W BY 11/1200
LOW 987HPA 55S 48W MOV SE WKN EXTENDS CFNT AT 55S 48W 52S 43W 45S 43W MOV NE
LOW 1002HPA 45S 55W MOV SE WKN
HIGH 1020HPA 35S 22W MOV E NC
WFNT AT SOUTH PATAGONIA COASTS MOV SE
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-12-12
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 PROB OF HVY STORMS IMPR STARTING EARLY MORNING NEXT
ISOL STORMS STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
OUTER RIO DE LA PLATA: VRB 3/4 PROB OF HVY STORMS IMPR STARTING EARLY MORNING
NEXT STORMS STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 6 WITH GUSTS PROB OF ISOL RAIN STORMS VIS
MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 3 PROB OF HVY STORMS SPELLS OF
GOOD WEATHER VIS MODERATE TO POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): VRB 4 PROB OF ISOL STORMS VIS
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): VRB 4 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6 WITH GUSTS VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 6/7 GUST WITH 8 INTENSITY PROB OF
SH VIS POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 6 WITH GUSTS PROB OF RAIN VIS POOR
ISLAS MALVINAS COASTS: SECTOR N 5/6 WITH GUSTS PROB OF SH VIS POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR N 6/8 WITH GUSTS PROB OF HVY
RAIN VIS VERY POOR TO POOR
W OF 35 - E OF 50W: SECTOR E 8 WITH GUSTS VEER SECTOR S 7 WITH GUSTS BY 11/1800
PROB OF HVY RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 5 UNSTABLE VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR N 6 WITH GUSTS VEER
SECTOR E 7 GUST WITH 8 INTENSITY BY 11/1500 PROB OF HVY RAIN STARTING EARLY
MORNING VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR N 6 WITH GUSTS BACK SECTOR W 5 PROB OF RAIN VIS POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR N 6/5 WITH GUSTS PROB
OF ISOL RAIN STARTING EARLY MORNING VIS MODERATE TO POOR
REST OF THE AREA: VRB 5 PROB OF SH STARTING EARLY MORNING VIS MODERATE TO
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR N 7/5 WITH GUSTS PROB
OF SH OF RAIN SH OF SNOW VIS POOR TO MODERATE
REST OF THE AREA: VRB 5 PROB OF SH OF RAIN SH OF SNOW VIS MODERATE TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: NE 7 GUST WITH 8 INTENSITY
BACK SECTOR W 6 WITH GUSTS PROB OF SH OF RAIN SH OF SNOW VIS POOR TO MODERATE
REST OF THE AREA: SECTOR W 6 WITH GUSTS VEER SECTOR N WITH GUSTS BY 11/0900
PROB OF RAIN STARTING EARLY MORNING VIS MODERATE TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): VRB 4/5 PROB OF RAIN SPELLS OF GOOD WEATHER
VIS MODERATE TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 11, 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
HIGH 1008HPA 60S 35W MOV E WKN
LOW 971HPA 65S 85W MOV E DPN
LOW 989HPA 62S 55W MOV E DPN EXTENDS CFNT AT
101400 UTC 1.SEA ICE LIMIT 6000S 02000W 6018S 02013W 5946S 02759W 5636S 02538W 5728S 02924W 5803S 03403W 5927S 04120W 6009S 04759W 5854S 05008W 6056S 05459W 6249S 06019W 6619S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5239S 03955W 32X24NM A74A 5608S 02535W 27X13NM A77 5135S 04137W 27X4NM A76C 5923S 03731W 16X7NM B15AB 5708S 04445W 10X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5330S 04044W 9X2NM ICEBERG2 5257S 03919W 7X3NM ICEBERG3 5234S 04115W 3X3NM ICEBERG4 5132S 03452W 2X1NM ICEBERG5 5130S 03758W 4X2NM ICEBERG6 5238S 03659W 3X1NM ICEBERG7 5256S 03950W 4X1NM ICEBERG8 4937S 03508W 2X1NM ICEBERG9 5032S 02156W 3X1NM ICEBERG10 5216S 04144W 2X1NM ICEBERG11 5348S 04208W 4X1NM ICEBERG12 5031S 03849W 5X4NM ICEBERG13 5118S 03518W 8X2NM ICEBERG14 5218S 04056W 7X2NM ICEBERG15 5241S 03938W 4X2NM ICEBERG16 4942S 02915W 2X1NM ICEBERG17 5212S 04005W 4X2NM ICEBERG18 5229S 04006W 4X1NM ICEBERG19 5227S 03959W 2X1NM ICEBERG20 5206S 03943W 2X1NM ICEBERG21 5235S 04016W 3X2NM ICEBERG22 5237S 04013W 2X1NM ICEBERG23 5211S 04001W 2X1NM ICEBERG24 5215S 04000W 2X2NM ICEBERG25 5321S 04014W 11X3NM ICEBERG26 5249S 03912W 3X1NM ICEBERG27 5241S 04013W 2X1NM ICEBERG28 5235S 04033W 3X1NM ICEBERG29 5036S 03854W 3X1NM ICEBERG30 5027S 03852W 4X1NM ICEBERG31 5254S 03953W 2X1NM 4.ICEBERGS AREA A 4600S 02000W 6200S 02000W 4600S 04500W 6100S 04500W B 5900S 06000W 6400S 06000W 5200S 04500W 6100S 04500W C 5900S 06000W 6400S 06000W 6300S 06716W 6800S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-12-12
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NE 3/4 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 E 3/4 PROB OF ISOL SNOW FALL PROB OF MIST FOG PATCHES VIS MODERATE TO POOR OCNL VERY POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR E 3/4 PROB OF ISOL SNOW FALL PROB OF MIST FOG PATCHES 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 3/4 PROB OF ISOL SNOW FALL PROB OF MIST VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : NE 3/5 PROB OF ISOL SNOW FALL VIS GOOD OCNL MODERATE
EREBUS Y TERROR GULF : SECTOR E 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 W 3/4 VEER SECTOR N BY 11/0900 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 3/5 PROB OF MIST FOG PATCHES PROB OFISOL SNOW FALL VIS MODERATE TO POOR OCNL VERY POOR
NORTHERN WEDDELL SEA (60-68S 20-50W): NE 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 W 3/4 PROB OF MIST PROB OFISOL SNOW FALL VIS GOOD TO MODERATE OCNL POOR=