1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-24, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 342: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W) UNTIL 25/0900
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1026HPA 38S 44W MOV E INTSF EXP 36S 28W BY 25/1200
LOW 1005HPA 49S 65W NOT MOV DPN EXTENDS CFNT AT 35S 65W 42S 60W 48S 62W MOV NE
231400 UTC 1.SEA ICE LIMIT 5759S 02000W 5605S 02618W 5803S 03217W 5835S 03758W
5937S 04316W 6142S 04814W 6210S 05247W 6229S 05655W 6338S 06032W 6413S 06336W
6530S 06559W 6602S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6115S 05112W 21X12NM
A81 6036S 05242W 28X25NM A76C 5204S 03131W 16X6NM 3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 6141S 05154W 6X3NM 4.ICEBERGS AREA A5900S 02000W 4500S 02000W 4400S
03000W 6000S 04000W B5700S 03800W 6000S 04000W 5600S 05000W 6200S 05000W C6200S
05000W 5800S 05000W 6230S 06716W 6630S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-25
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 5/4 WITH GUSTS LOW PROB OF ISOL DRIZZLE PROB OF
MIST DURING THE MORNING VIS MODERATE OCNL GOOD
OUTER RIO DE LA PLATA: SECTOR N 5/4 WITH GUSTS LOW PROB OF ISOL DRIZZLE PROB OF
MIST DURING THE MORNING VIS MODERATE OCNL GOOD
URUGUAY SOUTH EAST COASTS: SECTOR N 5 WITH GUSTS DECR 3 BY 25/0000 PROB OF RAIN
VIS MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 6/5 WITH GUSTS DECR 4 BY 25/0000
PROB OF RAIN IMPR VIS MODERATE TO GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): NW 6/5 WITH GUSTS LOW PROB OF DRIZZLE
IMPR VIS MODERATE TO GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 5 WITH GUSTS LOW PROB OF ISOL
DRIZZLE VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 4/5 WITH GUSTS VIS GOOD OCNL
MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5/6 WITH GUSTS LOW PROB OF DRIZZLE
NXT SNOW FALL VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR E 6/5 WITH GUSTS PROB OF SNOW FALL VIS
POOR
ISLAS MALVINAS COASTS: SECTOR E 6 WITH GUSTS PROB OF RAIN VIS MODERATE OCNL
POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR S 5/6 WITH GUSTS PROB OF
DRIZZLE VIS MODERATE
REST OF THE AREA: SECTOR N 5/6 WITH GUSTS LOW PROB OF ISOL SH STORMS VIS
MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W): SW 6 WITH GUSTS VEER SECTOR W 4 WITH
GUSTS VIS POOR OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR N 6/5 WITH GUSTS BACK SECTOR W
BY 25/0300 PROB OF RAIN VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 8 WITH GUSTS PROB OF SNOW FALL
VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SECTOR W 6 GUST WITH 8 INTENSITY DECR 4
BY 25/0600 LOW PROB OF ISOL SNOW FALL VIS POOR OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SW 5 WITH GUSTS LOW PROB OF DRIZZLE VIS
MODERATE OCNL GOOD
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 24, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1005/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-64S 70W-55W UNTIL 24/1200
1006/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-66S 50W-40W UNTIL 25/0000
1007/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV NE WEAKENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-68S 59W-50W UNTIL 24/1500
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 959HPA 69S 32W MOV E WKN
LOW 973HPA 66S 48W MOV E DPN
LOW 984HPA 64S 55W MOV E DPN
HIGH 1021HPA 61S 90W MOV E WKN EXTENDS RIDGE AT 61S 90W 62S 80W 64S 73W MOV E
231400 UTC 1.SEA ICE LIMIT 5759S 02000W 5605S 02618W 5803S 03217W 5835S 03758W 5937S 04316W 6142S 04814W 6210S 05247W 6229S 05655W 6338S 06032W 6413S 06336W 6530S 06559W 6602S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6115S 05112W 21X12NM A81 6036S 05242W 28X25NM A76C 5204S 03131W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6141S 05154W 6X3NM 4.ICEBERGS AREA A5900S 02000W 4500S 02000W 4400S 03000W 6000S 04000W B5700S 03800W 6000S 04000W 5600S 05000W 6200S 05000W C6200S 05000W 5800S 05000W 6230S 06716W 6630S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-25
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 8 WITH GUSTS DECR SW 5/6 WITH GUSTS BY 24/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 8 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 24/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: SW 9 WITH GUSTS DECR SW 5/6 WITH GUSTS BY 24/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 8 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 24/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
GERLACHE STRAIT : SW 7 GUST WITH 8 INTENSITY DECR SW 6/5 BY 25/0000 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : SW 4/5 WITH GUSTS VEER SECTOR N 4 BY 25/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 8/7 WITH GUSTS DECR SECTOR W 5/4 BY 25/0000 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 4/5 WITH GUSTS VEER SECTOR W 5/4 WITH GUSTS BY 24/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 5/7 WITH GUSTS DECR SECTOR W 5/3 WITH GUSTS BY 24/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR W 7/8 WITH GUSTS DECR SECTOR W 6/5 WITH GUSTS BY 24/1800 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: SW 7/8 WITH GUSTS VEER SECTOR W 7/5 WITH GUSTS BY 25/0000 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 5/6 WITH GUSTS BACK SW 7/5 WITH GUSTS BY 24/2100 PROB OF FOG AND MIST IN PATCHES IMPR DURING THE EVENING VIS VERY POOR TO MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 5/4 BACK SECTOR E 4/5 WITH GUSTS BY 24/1800 PROB OF MIST PROB OFCOASTAL BLIZZARD IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD=