1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 11, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
944/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 9 FROM SECTOR W WITH GUST IN 61S-64S 60W-50W UNTIL 11/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 970HPA 70S 70W MOV SE DPN
LOW 998HPA 61S 80W MOV SE DPN
RIDGE 62S 30W 65S 30W 69S 30W MOV E WKN
101400 UTC 1.SEA ICE LIMIT 5910S 02000W 5744S 02618W 5837S 03217W 5927S 03758W 5950S 04317W 6214S 04813W 6309S 05247W 6308S 05655W 6246S 06032W 6412S 06337W 6615S 06559W 6640S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6216S 05328W 21X12NM A81 6113S 05219W 28X25NM A76C 5240S 03141W 16X6NM D33C 6320S 05311W 9X4NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5240S 03131W 2X1NM ICEBERG2 6252S 05309W 6X3NM ICEBERG3 6321S 05304W 5X2NM ICEBERG4 6311S 05300W 4X3NM ICEBERG5 6308S 05250W 2X1NM 4.ICEBERGS AREA A6100S 02000W 4600S 02000W 4600S 03500W 5800S 03500W B5830S 03500W 5300S 03500W 5830S 05000W 6200S 05000W C6200S 05000W 5800S 05300W 6200S 06716W 6800S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-12
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 7/5 DECR SW 5/4 WITH GUSTS BY 11/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7/8 WITH GUSTS BACK SW 7 BY 11/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 7/5 DECR SW 5/4 WITH GUSTS BY 11/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 7/8 WITH GUSTS BACK SW 7 WITH GUSTS BY 11/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
GERLACHE STRAIT : SW 4/5 BACK SE 4/3 BY 12/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
MARGARITA BAY : NW 4/3 VEER NE 4 BY 12/0300 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : SW 7/5 VEER SECTOR W 5/4 BY 12/0300 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 3/4 WITH GUSTS VEER SECTOR W 4 BY 12/0000 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 5/6 VEER NW 5/7 BY 12/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 3/4 VEER NW 3/4 BY 12/0300 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA N OF 65S: NW 7/8 WITH GUSTS BACK SECTOR W 7 WITH GUSTS BY 11/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: NW 4/5 BACK SECTOR W 7 WITH GUSTS BY 12/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE NIGTH VIS MODERATE TO GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 5/6 WITH GUSTS VEER SECTOR E 5/4 BY 12/0300 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-11, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 318: LOW 996HPA AT 40S 33W MOV E DEEPENING EXPECTED 42S 23W BY 11/2100
PROVOKES WINDS FORCE 8 AROUND ITSELF WITH GUST BETWEEN 35S-45S AND 20W-40W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
101400 UTC 1.SEA ICE LIMIT 5910S 02000W 5744S 02618W 5837S 03217W 5927S 03758W
5950S 04317W 6214S 04813W 6309S 05247W 6308S 05655W 6246S 06032W 6412S 06337W
6615S 06559W 6640S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6216S 05328W 21X12NM
A81 6113S 05219W 28X25NM A76C 5240S 03141W 16X6NM D33C 6320S 05311W 9X4NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5240S 03131W 2X1NM ICEBERG2 6252S 05309W
6X3NM ICEBERG3 6321S 05304W 5X2NM ICEBERG4 6311S 05300W 4X3NM ICEBERG5 6308S
05250W 2X1NM 4.ICEBERGS AREA A6100S 02000W 4600S 02000W 4600S 03500W 5800S
03500W B5830S 03500W 5300S 03500W 5830S 05000W 6200S 05000W C6200S 05000W 5800S
05300W 6200S 06716W 6800S 06716W
LOW 996HPA 40S 33W MOV E DPN EXP 42S 23W BY 11/2100
HIGH 1023HPA 47S 60W MOV E INTSF EXP 47S 47W BY 11/2100
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-12
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3 VEER SECTOR S 3 BY 11/1200 PROB OF RAIN VIS
MODERATE
OUTER RIO DE LA PLATA: SECTOR E 3/4 VEER SECTOR S 4 BY 11/1500 PROB OF RAIN VIS
MODERATE
URUGUAY SOUTH EAST COASTS: VRB 3/4 PROB OF RAIN VIS MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR E 3 VEER SECTOR S 4 BY 11/1500
PROB OF RAIN NXT HVY RAIN VIS MODERATE OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR E 4 VEER SECTOR S 4 BY 11/1200
PROB OF RAIN VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): NE 3/4 PROB OF SH VIS GOOD OCNL
MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): N 3/4 PROB OF DRIZZLE NXT UNSTABLE VIS
MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S): NW 4/5 VIS GOOD
FIN DEL MUNDO COASTS(54S - 55S): NW 5 PROB OF ISOL RAIN STARTING EARLY MORNING
VIS GOOD OCNL MODERATE
ISLAS MALVINAS COASTS: NW 4/5 VIS GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR W 8 WITH GUSTS PROB OF HVY
RAIN VIS VERY POOR
REST OF THE AREA: SECTOR S 6/5 WITH GUSTS BACK SECTOR E 5 BY 11/1500 PROB OF
ISOL RAIN NXT HVY RAIN VIS MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR S 8 WITH GUSTS PROB
OF HVY RAIN VIS VERY POOR
REST OF THE AREA: SECTOR S 7 WITH GUSTS PROB OF SH OF RAIN NXT SH OF SNOW VIS
POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: SECTOR S 6/5 WITH GUSTS BACK
VRB 4 BY 11/1500 UNSTABLE VIS MODERATE
REST OF THE AREA: VRB 4/3 PROB OF ISOL RAIN NXT RAIN VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SW 6/5 WITH GUSTS PROB OF SH OF SNOW
VIS POOR OCNL MODERATE
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: SECTOR W 5 VIS GOOD
REST OF THE AREA: SECTOR W 7/6 WITH GUSTS PROB OF ISOL SNOW FALL VIS POOR OCNL
MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 5/6 WITH GUSTS PROB OF ISOL DRIZZLE
SNOW FALL STARTING EARLY MORNING VIS MODERATE OCNL POOR
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