1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 26, MARCH 2025.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
306/2025 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS EREBUS Y TERROR GULF MOV E WEAKENING PROVOKES WINDS FORCE 9 FROM SECTOR S GUST WITH 10 INTENSITY IN 60S-64S 58W-50W UNTIL 26/0900
307/2025 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E WEAKENING WILL PROVOKE WINDS FORCE 9 FROM SECTOR S GUST WITH 10 INTENSITY IN 60S-65S 40W-50W FROM 26/0300 UNTIL 26/2100
308/2025 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV SE WEAKENING PROVOKES WINDS FORCE 8 GUST WITH 9 INTENSITY IN 60S-65S 75W-90W UNTIL 26/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 958HPA 63S 44W MOV SE DPN
LOW 976HPA 73S 49W MOV E WKN
RIDGE 60S 72W 64S 71W 68S 70W MOV E WKN
251400 UTC 1.SEA ICE LIMIT 7233S 02000W 7121S 02741W 6923S 03013W 6651S 03212W 6634S 03842W 6544S 04424W 6407S 04439W 6226S 04523W 6203S 05200W 6249S 05646W 6336S 06144W 6553S 06716W 2.ICEBERGS GREATER THAN 10NM A23A 5447S 03903W 40X32NM A23B 5624S 03819W 10X3NM A76C 6207S 05302W 16X7NM A74A 6313S 05327W 30X18 NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6131S 05430W 9X3NM ICEBERG2 5526S 03544W 2X1NM ICEBERG3 6224S 04726W 8X3NM ICEBERG4 6258S 04331W 3X1NM ICEBERG5 6151S 05447W 2X1NM ICEBERG6 5620S 03738W 7X1NM ICEBERG7 6229S 04246W 2X1NM ICEBERG8 5616S 03723W 3X1NM ICEBERG9 5510S 03749W 3X1NM ICEBERG10 6227S 05512W 2X1NM 4.ICEBERGS AREA A: 4300S 02000W 7300S 02000W 4300S 03000W 7200S 03100W B: 4400S 03000W 6900S 03100W 6700S 04600W 5400S 04600W C: 5900S 04600W 6700S 04600W 5900S 06716W 6830S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-03-27
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 7 WITH GUSTS VEER SECTOR W 6/5 BY 26/0600 VEER NW 7 GUST WITH 8 INTENSITY BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 9 WITH GUSTS DECR SECTOR S 5 BY 26/0900 AFTERWARDS SECTOR W 4 BY 26/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR DURING THE MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 7 WITH GUSTS VEER SECTOR W 5 BY 26/0600 VEER NW 7 GUST WITH 8 INTENSITY BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING EARLY MORNING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4/5 BACK SW 8 WITH GUSTS BY 26/1200 VEER NW 7 BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EARLY MORNING VIS POOR TO MODERATE
GERLACHE STRAIT : SW 3/4 VEER NE 5/6 GUST WITH 8 INTENSITY BY 25/1500 INCR NE 4 BY 26/1800 PROB OF INTERMITTENT SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE
MARGARITA BAY : NE 3/4 VEER SECTOR N 5/7 GUST WITH 8 INTENSITY BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 8 GUST WITH 8 INTENSITY DECR SW 6/5 BY 26/0600 AFTERWARDS NE 4 BY 26/1500 PROB OF FOG MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER COASTAL BLIZZARD DURING THE EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: NW 8 GUST WITH 8 INTENSITY BACK SECTOR W 6 WITH GUSTS BY 26/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS POOR OCNL MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 4/5 WITH GUSTS VEER NW 7/8 GUST WITH 9 INTENSITY BY 26/0900 DECR NW 6/5 WITH GUSTS BY 26/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR OCNL MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 3/4 VEER SECTOR E 6 WITH GUSTS BY 26/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
NORTHERN WEDDELL SEA N OF 64 - W OF 40W: SE 5/6 WITH GUSTS VEER SECTOR S 8 GUST WITH 9 INTENSITY BY 26/0600 VEER SW 6/5 WITH GUSTS BY 26/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS NOON VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 64 - E OF 40W: SECTOR N 5/6 VEER NE 5 BY 26/0600 VEER SECTOR S 6/7 WITH GUSTS BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 3/4 VEER SW 4/5 BY 26/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 3/4 VEER SE 4/5 BY 26/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2025-03-26, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 124: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 45S-50S 50W-20W FROM 26/0300
WARNING 123: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 9 FROM SECTOR W WITH
GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W) FROM 26/0300
WARNING 117: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) UNTIL 26/0300
WARNING 122: COLD FRONT AT 54S 59W 54S 53W 56S 44W MOV NE PROVOKES WINDS FORCE
10 FROM SECTOR W WITH GUST IN SOUTH WEST AREA (50S- 60S AND 40W- 60W)
PART 2 GENERAL SYNOPSIS AT 21:00UTC
SEA ICE AND ICEBERGS REPORT 251400 UTC
1.SEA ICE LIMIT
7233S 02000W 7121S 02741W 6923S 03013W 6651S 03212W 6634S 03842W 6544S 04424W
6407S 04439W 6226S 04523W 6203S 05200W 6249S 05646W 6336S 06144W 6553S 06716W
2.ICEBERGS GREATER THAN 10NM
A23A 5447S 03903W 40X32NM
A23B 5624S 03819W 10X3NM
A76C 6207S 05302W 16X7NM
A74A 6313S 05327W 30X18 NM
3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 6131S 05430W 9X3NM
ICEBERG2 5526S 03544W 2X1NM
ICEBERG3 6224S 04726W 8X3NM
ICEBERG4 6258S 04331W 3X1NM
ICEBERG5 6151S 05447W 2X1NM
ICEBERG6 5620S 03738W 7X1NM
ICEBERG7 6229S 04246W 2X1NM
ICEBERG8 5616S 03723W 3X1NM
ICEBERG9 5510S 03749W 3X1NM
ICEBERG10 6227S 05512W 2X1NM
4.ICEBERGS AREA
A: 4300S 02000W 7300S 02000W 4300S 03000W 7200S 03100W
B: 4400S 03000W 6900S 03100W 6700S 04600W 5400S 04600W
C: 5900S 04600W 6700S 04600W 5900S 06716W 6830S 06716W
LOW 972HPA 57S 25W MOV SE DPN EXP BY 27/0000 EXTENDS CFNT AT 53S 22W 48S 22W 36S
31W MOV E
HIGH 1023HPA 39S 57W MOV NE NC EXP 37S 45W BY 27/0000
CFNT AT 54S 59W 54S 53W 56S 44W MOV NE
CFNT AT FIN DEL MUNDO COASTS MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2025-03-27
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 5/6 WITH GUSTS VIS GOOD
OUTER RIO DE LA PLATA: SECTOR E 5/6 WITH GUSTS VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR E 5/6 WITH GUSTS VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR E 4 BACK SECTOR N BY 26/1200 VEER
SECTOR E 5 WITH GUSTS BY 26/2100 LOW PROB OF ISOL RAIN STORMS TOWARDS THE END OF
THE PERIOD VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 5 WITH GUSTS BACK SECTOR N
5/6 WITH GUSTS BY 26/0300 PROB OF ISOL SH DURING THE MORNING NXT HVY RAIN
STARTING EVENING VIS GOOD TO POOR
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6 WITH GUSTS PROB OF RAIN
STARTING EVENING VIS GOOD TO MODERATE OCNL POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 6 WITH GUSTS VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S) N OF 51S: SE 5 WITH GUSTS BACK E BY 26/1200
BACK SECTOR N BY 26/2100 VIS GOOD
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SW 6 WITH GUSTS DECR VRB
5/4 BY 26/0300 AFTERWARDS SECTOR N 5/6 WITH GUSTS BY 26/1500 VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): SW 7/6 WITH GUSTS DECR VRB 4 BY 26/0300
AFTERWARDS SECTOR N 6 WITH GUSTS BY 26/1500 VIS GOOD OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR W 7/6 WITH GUSTS DECR VRB 5/4 BY 26/0900
AFTERWARDS NE 6 WITH GUSTS BY 26/2100 VIS GOOD OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 6 WITH GUSTS BACK SW BY
26/0600 PROB OF RAIN STORMS IMPR STARTING EVENING VIS POOR TO GOOD
W OF 30 - E OF 40W: SECTOR S 6/5 WITH GUSTS PROB OF ISOL RAIN IMPR STARTING
EARLY MORNING VIS MODERATE TO GOOD
W OF 40 - E OF 50W: SECTOR S 6/5 WITH GUSTS DECR VRB 4/3 BY 26/1200 LOW PROB OF
ISOL RAIN IMPR TOWARDS EARLY MORNING VIS MODERATE TO GOOD
REST OF THE AREA: VRB 4/3 INCR SECTOR N 5 BY 26/2100 VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR N 6 WITH
GUSTS BACK SW BY 26/0300 VEER W 6/7 GUST WITH 8 INTENSITY BY 26/1800 PROB OF
RAIN STORMS IMPR STARTING EVENING VIS POOR OCNL MODERATE
E OF 30 - S OF 45S: SECTOR W 6 WITH GUSTS INCR 8 WITH GUSTS BY 26/1200 PROB OF
RAIN SPELLS OF GOOD WEATHER VIS VERY POOR TO POOR
W OF 30 - N OF 45S: SW 6 WITH GUSTS VEER W 7 GUST WITH 8 INTENSITY BY 26/1500
PROB OF ISOL RAIN TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
REST OF THE AREA: SECTOR W 6/7 WITH GUSTS INCR 8 WITH GUSTS BY 26/0600 PROB OF
ISOL RAIN STARTING EARLY MORNING VIS VERY POOR TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR S 6 WITH
GUSTS VEER SECTOR W BY 26/0900 VIS GOOD OCNL MODERATE
E OF 50 - S OF 45S: SECTOR W 7/8 WITH GUSTS BACK SW 7/6 WITH GUSTS BY 26/2100
PROB OF ISOL RAIN STARTING EARLY MORNING NEXT IMPR STARTING EVENING VIS VERY
POOR TO POOR OCNL MODERATE
W OF 50 - N OF 45S: VRB 3/4 INCR SECTOR N 5 WITH GUSTS BY 26/0600 VIS GOOD
REST OF THE AREA: SECTOR W 6 WITH GUSTS BACK SECTOR E BY 26/1200 BACK SECTOR N
BY 26/2100 VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR W 6/7 WITH
GUSTS INCR 8 WITH GUSTS BY 26/1200 PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR
TO POOR
E OF 30 - S OF 55S: SECTOR W 6 WITH GUSTS BACK SECTOR S BY 26/1800 PROB OF RAIN
AND SNOW MIXTURE NXT SNOW FALL VIS MODERATE TO POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 7/9 WITH GUSTS BACK SW BY 26/2100 PROB OF RAIN AND
SNOW MIXTURE NXT SNOW FALL VIS VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 10 WITH GUSTS BACK SW
BY 26/1200 AFTERWARDS 7/6 BY 26/2300 PROB OF RAIN AND SNOW MIXTURE IMPR TOWARDS
THE END OF THE PERIOD VIS VERY POOR TO POOR
W OF 50 - N OF 55S: SECTOR W 8 WITH GUSTS BACK SW 7/6 WITH GUSTS BY 26/1200
AFTERWARDS VRB 4 BY 26/2100 VIS VERY POOR TO MODERATE OCNL GOOD
REST OF THE AREA: SECTOR W 10 WITH GUSTS BACK SW BY 26/0600 VEER W 7/5 WITH
GUSTS BY 26/1800 PROB OF RAIN AND SNOW MIXTURE IMPR TOWARDS EVENING VIS VERY
POOR TO POOR OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 8 WITH GUSTS DECR 7/6 WITH GUSTS BY
26/0600 AFTERWARDS SECTOR N BY 26/2100 LOW PROB OF RAIN AND SNOW MIXTURE IMPR
STARTING EARLY MORNING TOWARDS THE END OF THE PERIOD NEXT WORSENING VIS VERY
POOR TO POOR OCNL MODERATE
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