1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 13, SEPTEMBER 2025.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 STORM WARNING:
1010/2025 STRONG BARIC GRADIENT PROVOKES WINDS FORCE 10 WITH GUST IN 60S-70S 20W-40W UNTIL 14/0300
1011/2025 LOW 947HPA AT 72S 80W MOV SE DEEPENING PROVOKES WINDS FORCE 10 AROUND ITSELF WITH GUST IN 60S-70S 60W-85W
1012/2025 STRONG BARIC GRADIENT MOV SE PROVOKES WINDS FORCE 10 FROM N WITH GUST BACK NW IN 60S-70S 60W-25W
1013/2025 STRONG BARIC GRADIENT MOV W DEEPENING PROVOKES WINDS FORCE 10 FROM SECTOR N WITH GUST IN SOUTHERN BELLINGSHAUSEN SEA FROM 14/0300
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 947HPA 72S 80W MOV SE DPN EXTENDS WFNT AT 72S 80W 70S 70W MOV S
RIDGE 60S 35W 73S 50W MOV E
131400 UTC 1.SEA ICE LIMIT 5608S 02000W 5516S 02554W 5623S 03059W 5735S 03704W 5816S 04236W 5911S 04700W 6046S 05352W 6218S 06001W 6253S 06136W 6355S 06245W 6520S 06604W 6420S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5236S 03654W 40X32NM A74A 5513S 04220W 27X17NM A77 5745S 05015W 27X4NM A76C 5945S 04802W 16X7NM B15AB 6030S 05254W 11X4NM A23G 5330S 03814W 20X8NM A23H 5232S 03736W 13X3NM A23I 5255S 03647W 20X10NM ICEBERG1 5235S 04045W 12X2NM 3.ICEBERGS SMALLER THAN 10NM A23E 5059S 03315W 9X4NM ICEBERG2 5310S 03715W 3X1NM ICEBERG3 5856S 05150W 9X2NM ICEBERG4 5441S 03727W 4X1NM ICEBERG5 4854S 02332W 3X2NM ICEBERG6 5312S 02925W 3X1NM ICEBERG7 5321S 03735W 4X1NM ICEBERG8 5754S 05021W 6X4NM ICEBERG9 4947S 03024W 2X1NM ICEBERG10 5051S 03429W 3X3NM ICEBERG11 5904S 05228W 2X1NM ICEBERG12 5113S 03229W 3X1NM ICEBERG13 5255S 03655W 3X1NM ICEBERG14 5320S 03805W 9X4NM ICEBERG15 5155S 03926W 3X1NM ICEBERG16 5245S 03742W 8X3NM ICEBERG17 5235S 03325W 2X1NM ICEBERG18 4943S 03107W 3X1NM ICEBERG19 4954S 03150W 3X1NM ICEBERG20 4949S 03051W 6X5NM ICEBERG21 5229S 03714W 3X1NM ICEBERG22 5436S 03731W 4X1NM ICEBERG23 5235S 03724W 3X3NM ICEBERG24 5253S 03658W 3X1NM ICEBERG25 5552S 04305W 3X1NM 4.ICEBERGS AREA A: 5612S 02000W 4900S 02000W 4500S 02800W 4900S 03700W 5700S 03700W B: 5700S 03700W 5000S 03700W 5000S 04100W 5200S 04700W 5927S 04700W C: 5927S 04700W 5400S 04700W 6300S 06716W 65460S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-09-14
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 10 WITH GUSTS DECR 5/6 BY 14/0900 PROB OF FOG MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS MODERATE OCNL POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: N 10 WITH GUSTS BACK NW BY 14/0000 PROB OF FOG MIST PROB OF SNOW FALL TOWARDS NIGTH VIS VERY POOR TO POOR
MAR DE LA FLOTA COASTS W OF 60W: NW 10 WITH GUSTS DECR 5/6 BY 14/1200 PROB OF MIST FOG PATCHES PROB OF SNOW FALL SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
MAR DE LA FLOTA COASTS REST OF THE AREA: N 10 WITH GUSTS BACK NW BY 14/0000 PROB OF MIST FOG PATCHES PROB OF SNOW FALL TOWARDS NIGTH VIS VERY POOR TO POOR
GERLACHE STRAIT : NE 10 WITH GUSTS BACK N 5/6 BY 14/0900 PROB OF FOG PATCHES PROB OFMOD HVY SNOW FALL SPELLS OF GOOD WEATHER VIS MODERATE TO POOR OCNL VERY POOR
MARGARITA BAY : NE 7 GUST WITH 8 INTENSITY INCR 10 WITH GUSTS BY 13/1500 PROB OF FOG MIST SPELLS OF GOOD WEATHER PROB OFMOD HVY SPELLS OF GOOD WEATHER STARTING EVENING VIS VERY POOR TO POOR OCNL MODERATE
EREBUS Y TERROR GULF : SECTOR N 10 WITH GUSTS PROB OF FOG PROB OFMOD SNOW FALL DURING THE NIGTH VIS VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 67 - W OF 80W: SW 8/9 WITH GUSTS VEER W 5/6 BACK SW 6/7 BY 14/1200 PROB OF MIST PROB OFSCT INTERMITTENT SNOW FALL VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA N OF 67 - E OF 80W: NE 10 WITH GUSTS BACK W 9 WITH GUSTS BY 13/2100 AFTERWARDS NW 5/6 BY 14/0900 PROB OF FOG MIST DISSIPATING STARTING EARLY MORNING PROB OFISOL SNOW FALL VIS VERY POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA S OF 67 - W OF 80W: SECTOR S 5/6 INCR SW 7 GUST WITH 8 INTENSITY BY 13/1500 PROB OF MIST DISSIPATING PROB OFISOL SNOW FALL VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 10 WITH GUSTS BACK NW 8 BY 14/1200 PROB OF FOG MIST PROB OFMOD HVY SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): VRB 4/3 VEER S 5 BY 13/1800 AFTERWARDS SW 7 BY 14/0000 PROB OF MIST FOG PATCHES SPELLS OF GOOD WEATHER PROB OFMOD INTERMITTENT SNOW FALL STARTING EVENING VIS MODERATE TO POOR OCNL VERY POOR
NORTHERN WEDDELL SEA (60-68S 20-50W): W 8/10 WITH GUSTS VEER NW BY 14/0900 PROB OF FOG MIST PROB OFISOL SNOW FALL STARTING EARLY MORNING VIS POOR OCNL VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): W 4/5 VEER 7/6 BY 13/2100 BACK NW 10 WITH GUSTS BY 14/1200 PROB OF MOD HVY SNOW FALL STARTING NIGTH PROB OF FOG MIST STARTING NIGTH VIS GOOD TO POOR OCNL VERY POOR=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-09-13, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 375: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR N WITH
GUST IN ISLAS MALVINAS COASTS SOUTH WEST AREA (50S- 60S AND 40W- 60W)
PART 2 GENERAL SYNOPSIS AT 09:00UTC
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2025-09-14
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 3/4 VEER SECTOR E BY 13/1500 VEER PROB OF ISOL
SH STORMS STARTING NIGTH VIS GOOD TO MODERATE
OUTER RIO DE LA PLATA: SECTOR N 4/5 DECR 4/3 PROB OF ISOL SH RAIN STARTING NIGTH
VIS GOOD TO MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR N 4 INCR 5 WITH GUSTS BY 14/0000 DECR 4/3 BY
14/0900 PROB OF ISOL SH RAIN STARTING EARLY MORNING VIS MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 5 WITH GUSTS BACK VRB 3/4 BY
14/0600 PROB OF MIST FOG PATCHES NXT PROB OF DRIZZLE RAIN STARTING NIGTH VIS
MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 6 WITH GUSTS BACK VRB 3/4 BY
13/2100 PROB OF ISOL RAIN STORMS STARTING EVENING STARTING NIGTH IMPR VIS POOR
TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/7 WITH GUSTS BACK VRB 3/4 BY
13/2100 VIS POOR TO GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6 WITH GUSTS BACK SECTOR W 4/5
WITH GUSTS BY 13/1500 VIS POOR TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 6/5 WITH GUSTS DECR 5/4 BY 13/1800
BACK SECTOR W 4 BY 14/0600 PROB OF MIST FOG PATCHES STARTING NIGTH DISSIPATING
VIS MODERATE TO GOOD
FIN DEL MUNDO COASTS(54S - 55S): VRB 3/4 VEER SECTOR N 5 WITH GUSTS BY 13/2100
BACK SECTOR W PROB OF DRIZZLE RAIN NXT MIST FOG PATCHES STARTING NIGTH
DISSIPATING VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR N 8 WITH GUSTS DECR 7/6 WITH GUSTS BY 13/2100 DECR
4/3 BY 14/0600 PROB OF MIST FOG PATCHES DURING THE MORNING NEXT DRIZZLE RAIN
DURING THE EVENING VIS VERY POOR TO POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR S 7/6 WITH GUSTS DECR 5 BY
14/0600 PROB OF SH VIS POOR TO MODERATE
E OF 40W: SW 5 WITH GUSTS DECR 4/3 BY 13/2100 VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR N 4/5 WITH GUSTS INCR 5/6 BY 13/2100 PROB OF ISOL RAIN
STORMS TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR S 6/7 WITH GUSTS DECR
6/5 BY 14/0900 PROB OF SH NEXT IMPR SLOWLY VIS POOR TO MODERATE
REST OF THE AREA: SECTOR S 5/4 WITH GUSTS BACK VRB 3/4 BY 14/0300 VIS GOOD
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR N 6/7 GUST WITH 8 INTENSITY
PROB OF RAIN STORMS STARTING NIGTH VIS POOR OCNL VERY POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 4/5 WITH GUSTS VEER SECTOR
W 5/6 BY 13/2100 BACK SECTOR S BY 14/0600 VIS MODERATE OCNL POOR
REST OF THE AREA: NW 4/5 WITH GUSTS INCR 5/6 WITH GUSTS VIS GOOD TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR N 7/8 WITH GUSTS PROB OF MIST
FOG PATCHES NXT PROB OF RAIN STORMS STARTING NIGTH VIS VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 6/5 WITH GUSTS PROB OF DRIZZLE RAIN
SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
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