1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-6, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 362: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR S WITH
GUST IN INNER RIO DE LA PLATA OUTER RIO DE LA PLATA URUGUAY SOUTH EAST COASTS
MAR DEL PLATA COASTS BETWEEN 35S-40S 50W-55W FROM 06/2000
WARNING 361: LOW 994HPA AT 46S 22W MOV E PROVOKES WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 40S-45S AND 20W-30W UNTIL 06/0600
PART 2 GENERAL SYNOPSIS AT 21:00UTC
051400 UTC 1.SEA ICE LIMIT 5803S 02000W 5605S 02618W 5702S 03217W 5731S 03757W
5737S 04317W 5926S 04814W 6027S 05248W 6203S 05655W 6333S 06033W 6409S 06337W
6408S 06559W 6257S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6109S 053 22W
21X12NM A81 5940S 050 56W 28X25NM A76C 52 39S 03049W 16X6NM 3.ICEBERGS AREA
A5820S 02000W 4600S 02000W 5300S 03800W 5805S 03800W B5805S 03800W 5300S 03800W
5800S 05000W 6040S 05000W C6040S 05000W 5800S 05000W 6300S 06716W 6620S 06716W
LOW 994HPA 46S 22W MOV E EXTENDS CFNT AT 41S 21W 38S 24W 35S 29W
LOW 997HPA 47S 46W MOV E WKN EXP 46S 38W BY 06/2100
4IGH 1011HPA 56S 47W MOV NE INTSF EXP 54S 37W BY 06/1800 EXTENDS RIDGE AT 52S
34W 50S 31W MOV NE
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-7
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3 VEER SECTOR S 6 WITH GUSTS BY 6/1800 INCR 7/8
WITH GUSTS BY 6/2100 PROB OF RAIN STORMS STARTING NOON VIS MODERATE TO VERY
POOR
OUTER RIO DE LA PLATA: SE 3/4 VEER SECTOR S 7/8 WITH GUSTS BY 6/1800 PROB OF
RAIN STORMS STARTING NOON VIS MODERATE TO VERY POOR
URUGUAY SOUTH EAST COASTS: NE 4/3 BACK 7/8 WITH GUSTS BY 6/2200 PROB OF RAIN
STORMS STARTING EVENING VIS MODERATE TO VERY POOR
MAR DEL PLATA COASTS(3617S - 3830S): SE 3/4 VEER SECTOR S 7/8 WITH GUSTS BY
6/1800 PROB OF RAIN STARTING EARLY MORNING VIS MODERATE TO VERY POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): VRB 3 VEER SECTOR S 4/5 WITH GUSTS BY
6/1500 PROB OF RAIN VIS MODERATE OCNL POOR
PENINSULA DE VALDES COASTS(41S - 45S): SW 4 PROB OF ISOL RAIN SPELLS OF GOOD
WEATHER VIS MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR E 4 VEER SECTOR N 4/5 BY 6/1500
PROB OF SH SPELLS OF GOOD WEATHER VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): VRB 3 VEER SECTOR N 4/5 BY 6/1500 PROB OF
SH RAIN AND SNOW MIXTURE VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 4/5 PROB OF SH RAIN AND SNOW MIXTURE
VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR E 4 VEER VRB 3 BY 6/1200 PROB OF SH RAIN AND SNOW
MIXTURE VIS MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 7/6 GUST WITH 8 INTENSITY DECR 4
BY 6/1200 PROB OF RAIN VIS POOR TO MODERATE
W OF 30 - E OF 50W: VRB 3 VEER NE 4 BY 6/1800 PROB OF SH RAIN VIS MODERATE TO
POOR
REST OF THE AREA: VRB 3 VEER SECTOR E 4 BY 6/0900 VEER SECTOR S 7/8 WITH GUSTS
BY 6/2100 PROB OF HVY RAIN STARTING NOON VIS MODERATE TO VERY POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR W 8/7 WITH
GUSTS DECR 4 BY 6/1200 PROB OF SH RAIN VIS POOR TO MODERATE
W OF 50 - N OF 45S: SECTOR W 5/4 PROB OF ISOL RAIN VIS GOOD OCNL MODERATE
E OF 30 - S OF 45S: SECTOR S 4/5 PROB OF SH RAIN AND SNOW MIXTURE VIS
MODERATE
REST OF THE AREA: SECTOR E 4/5 PROB OF SH RAIN AND SNOW MIXTURE VIS MODERATE
OCNL POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR W 5/4 WITH
GUSTS DECR VRB 3 BY 6/1200 PROB OF SH SPELLS OF GOOD WEATHER VIS MODERATE
W OF 50 - N OF 45S: SECTOR W 4 BACK SECTOR S 4/5 BY 6/1500 PROB OF RAIN
STARTING EVENING VIS GOOD TO MODERATE
REST OF THE AREA: SE 4 DECR VRB 3 BY 6/0600 PROB OF SH RAIN VIS MODERATE OCNL
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) W OF 30 - N OF 55S: SECTOR S 5 WITH
GUSTS BACK SECTOR E 4 BY 6/1500 VIS GOOD
REST OF THE AREA: SW 5/4 WITH GUSTS VEER W 4 BY 6/1800 UNSTABLE VIS MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR E 5/4 PROB OF SH OF
SNOW SPELLS OF GOOD WEATHER VIS MODERATE
REST OF THE AREA: VRB 3 VEER NW 4 BY 6/0900 UNSTABLE VIS GOOD OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 4 PROB OF SH RAIN AND SNOW MIXTURE
VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 06, AUGUST 2026.
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
LOW 1003HPA 62S 61W MOV E WKN
RIDGE 61S 44W 65S 45W 68S 46W MOV E DPN
LOW 1004HPA 70S 75W MOV E WKN
RIDGE 60S 90W 63S 80W 65S 72W MOV NE WKN
051400 UTC 1.SEA ICE LIMIT 5803S 02000W 5605S 02618W 5702S 03217W 5731S 03757W 5737S 04317W 5926S 04814W 6027S 05248W 6203S 05655W 6333S 06033W 6409S 06337W 6408S 06559W 6257S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6109S 053 22W 21X12NM A81 5940S 050 56W 28X25NM A76C 52 39S 03049W 16X6NM 3.ICEBERGS AREA A5820S 02000W 4600S 02000W 5300S 03800W 5805S 03800W B5805S 03800W 5300S 03800W 5800S 05000W 6040S 05000W C6040S 05000W 5800S 05000W 6300S 06716W 6620S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-7
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR N 3/4 VEER NE 3/4 BY 6/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4/4 VEER NW 4/3 BY 6/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR N 3/4 VEER NE 3/4 BY 6/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4/5 VEER NW 4/3 BY 6/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
GERLACHE STRAIT : SECTOR E 4/3 BACK NE 3 BY 6/1500 PROB OF FOG AND MIST IN PATCHES IMPR TOWARDS MORNING VIS VERY POOR TO MODERATE OCNL GOOD
MARGARITA BAY : NE 3/4 BACK SECTOR N 4/3 BY 6/0900 PROB OF MIST VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SECTOR W 4/5 VEER NW 3/4 BY 6/1500 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR N 4/5 VEER NE 5/4 BY 6/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR E 3/5 VEER SE 4/3 BY 6/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR N 4/3 BACK NW 3 BY 6/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: SECTOR W 4/5 WITH GUSTS VEER NW 5/6 BY 6/0900 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 5/7 GUST WITH 8 INTENSITY VEER NW 4/5 BY 6/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR N 4/5 WITH GUSTS VEER SECTOR E 4/3 WITH GUSTS BY 6/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL POOR=