1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-08-24, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 392: STRONG BARIC GRADIENT WILL PROVOKE WINDS FORCE 8 FROM SECTOR N WITH
GUST IN PENINSULA DE VALDES COASTS GOLFO DE SAN JORGE COASTS FROM 24/1800
WARNING 389: LOW 975HPA AT 45S 36W MOV E EXPECTED 47S 31W BY 25/0000 PROVOKES
WINDS FORCE 9 AROUND ITSELF WITH GUST BETWEEN 35S-55S AND 20W-45W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
231400 UTC 1.SEA ICE LIMIT 5547S 02000W 5416S 02618W 5352S 03217W 5617S 03757W
5825S 04316W 5953S 04814W 6047S 05247W 6215S 05654W 6338S 06032W 6135S 06337W
6213S 06558W 6233S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6016S 05008W 21X12NM
A81 5841S 05051W 28X25NM A76C 5322S 03005W 16X6NM 3.ICEBERGS SMALLER THAN 10NM
D33C 6158S 05358W 9X5NM ICEBERG1 5935S 05020W 5X3NM ICEBERG2 6105S 05418W 5X3NM
ICEBERG3 6123S 05404W 6X4NM ICEBERG4 6112S 05418W 2X1NM ICEBERG5 6108S 05414W
3X1NM 4.ICEBERGS AREA A5600S 02000W 4500S 02000W 5200S 04500W 6000S 04500W
B5300S 04500W 6600S 04500W 6200S 06716W 6600S 06716W
LOW 975HPA 45S 36W MOV E EXP 47S 31W BY 25/0000 EXTENDS CFNT AT 49S 30W 42S 26W
33S 31W 30S 39W
HIGH 1027HPA 43S 61W MOV NE NC EXP 36S 55W BY 25/0000 EXTENDS TROUGH AT 43S 61W
48S 60W 58S 46W EXP BY 25/0000
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-25
COASTAL AREAS:
INNER RIO DE LA PLATA: VRB 3 SECTOR E 3/4 PROB OF FOG MIST DURING THE EARLY
MORNING VIS MODERATE GOOD
OUTER RIO DE LA PLATA: SECTOR S 3 VRB 3 SECTOR E 3/4 PROB OF FOG MIST DURING THE
EARLY MORNING VIS MODERATE GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 4/3 PROB OF FOG MIST DURING THE EARLY
MORNING VIS MODERATE GOOD
MAR DEL PLATA COASTS(3617S - 3830S): VRB 3 NE 4 PROB OF FOG MIST DURING THE
EARLY MORNING VIS MODERATE GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): VRB 3 SECTOR N 4/5 WITH GUSTS PROB OF
MIST STARTING EARLY MORNING VIS MODERATE GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 5/6 GUST WITH 8 INTENSITY INCR
8 BY 24/2100 WORSENING WITH LOW PROBABILITY OF SH RAIN TOWARDS THE END OF THE
PERIOD VIS MODERATE OCNL POOR
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5/6 GUST WITH 8 INTENSITY INCR
8 BY 24/2100 WORSENING WITH LOW PROBABILITY OF SH RAIN TOWARDS THE END OF THE
PERIOD VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR N 5/6 GUST WITH 8 INTENSITY
WORSENING WITH PROB OF ISOL DRIZZLE VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR N 5 WITH GUSTS PROB OF ISOL DRIZZLE
VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR N 4/5 WITH GUSTS VIS GOOD OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SECTOR N 8 WITH GUSTS W 7 WITH
GUSTS PROB OF RAIN STORMS NXT SH VIS POOR MODERATE
E OF 45W: SECTOR W 8 WITH GUSTS SW 6 GUST WITH 8 INTENSITY PROB OF SH RAIN AND
SNOW MIXTURE VIS POOR
REST OF THE AREA: SW 6/4 WITH GUSTS PROB OF SH RAIN TOWARDS THE END OF THE
PERIOD IMPR VIS POOR MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR N 8 SECTOR
W 6 GUST WITH 8 INTENSITY PROB OF SH RAIN NXT SH OF SNOW VIS POOR
W OF 30 - N OF 45S: SECTOR W 9 WITH GUSTS PROB OF SH OF SNOW VIS VERY POOR
E OF 30 - S OF 45S: NE 8 WITH GUSTS N 6 WITH GUSTS PROB OF SH RAIN NXT ISOL
SNOW FALL VIS POOR
REST OF THE AREA: SECTOR S 9 WITH GUSTS PROB OF SH OF SNOW SNOW FALL VIS VERY
POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 45W: SECTOR S 8 WITH GUSTS PROB
OF ISOL SNOW FALL VIS POOR
E OF 55W: SECTOR S 6/5 GUST WITH 8 INTENSITY DECR 4 PROB OF ISOL SNOW FALL
TOWARDS THE END OF THE PERIOD IMPR VIS POOR MODERATE
REST OF THE AREA: VRB 4/3 SECTOR N 4/5 VIS GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR E 9 WITH GUSTS SECTOR S
8 WITH GUSTS PROB OF HVY RAIN VIS VERY POOR
REST OF THE AREA: SE 6 GUST WITH 8 INTENSITY PROB OF ISOL SNOW FALL VIS POOR
MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 45 - N OF 55S: SECTOR S 8 WITH
GUSTS DECR 6 GUST WITH 8 INTENSITY PROB OF ISOL SNOW FALL VIS POOR OCNL
MODERATE
E OF 50 - N OF 55S: SECTOR S 5 WITH GUSTS LOW PROB OF ISOL SNOW FALL VIS
MODERATE
E OF 50 - S OF 55S: VRB 3 SECTOR W 3/4 LOW PROB OF ISOL SNOW FALL VIS MODERATE
OCNL GOOD
REST OF THE AREA: SECTOR W 4 SECTOR N 4/5 WITH GUSTS PROB OF ISOL SNOW FALL VIS
MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): VRB 3 SECTOR N 4/5 WITH GUSTS PROB OF
DRIZZLE SPELLS OF GOOD WEATHER VIS MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 24, AUGUST 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1102/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 63S-67S 40W-70W UNTIL 24/2100
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 1001HPA 64S 57W MOV E DPN
RIDGE 60S 65W 63S 70W 66S 85W MOV E INTSF
RIDGE 60S 40W 63S 39W 66S 65W MOV E WKN
231400 UTC 1.SEA ICE LIMIT 5547S 02000W 5416S 02618W 5352S 03217W 5617S 03757W 5825S 04316W 5953S 04814W 6047S 05247W 6215S 05654W 6338S 06032W 6135S 06337W 6213S 06558W 6233S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6016S 05008W 21X12NM A81 5841S 05051W 28X25NM A76C 5322S 03005W 16X6NM 3.ICEBERGS SMALLER THAN 10NM D33C 6158S 05358W 9X5NM ICEBERG1 5935S 05020W 5X3NM ICEBERG2 6105S 05418W 5X3NM ICEBERG3 6123S 05404W 6X4NM ICEBERG4 6112S 05418W 2X1NM ICEBERG5 6108S 05414W 3X1NM 4.ICEBERGS AREA A5600S 02000W 4500S 02000W 5200S 04500W 6000S 04500W B5300S 04500W 6600S 04500W 6200S 06716W 6600S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-08-25
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 3/4 VEER SECTOR N 3/4 BY 24/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 4/5 VEER NW 4/6 WITH GUSTS BY 24/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3/4 VEER SECTOR N 3/4 BY 24/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 4/5 VEER NW 5/6 WITH GUSTS BY 24/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO POOR
GERLACHE STRAIT : SE 3/4 BACK SECTOR E 4/3 BY 24/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS MODERATE TO VERY POOR
MARGARITA BAY : NW 4/5 VEER SECTOR N 4/3 BY 24/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS VERY POOR TO MODERATE
EREBUS Y TERROR GULF : NW 3/4 BACK SW 4/5 BY 24/1200 PROB OF FOG AND MIST IN PATCHES SPELLS OF GOOD WEATHER STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR N 3/3 VEER NE 4/4 BY 24/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE MORNING VIS GOOD TO MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NW 4/5 BACK NW 6 WITH GUSTS BY 23/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 7/5 WITH GUSTS BACK SW 4 BY 24/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA N OF 64S: NW 4/5 INCR NW 7/8 WITH GUSTS BY 24/0600 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE MORNING VIS GOOD TO MODERATE OCNL VERY POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 5 VEER NW 7/8 WITH GUSTS BY 24/0900 PROB OF FOG AND MIST IN PATCHES WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 7/8 WITH GUSTS BACK SECTOR N 5/4 WITH GUSTS BY 24/1200 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING EVENING VIS VERY POOR TO MODERATE OCNL GOOD=