1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-24, 00:00 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 ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST IN SOUTH EAST AREA (50S- 60S AND 20W- 40W)
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 1026HPA 38S 46W MOV E INTSF EXP 38S 42W BY 24/1500 EXTENDS RIDGE AT 43S 51W
45S 52W 48S 55W MOV E
LOW 1005HPA GOLFO DE SAN JORGE COASTS MOV SE DPN
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 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-25
COASTAL AREAS:
INNER RIO DE LA PLATA: NE 4/3 ISOL RAIN DURING THE MORNING VIS GOOD OCNL
MODERATE
OUTER RIO DE LA PLATA: NE 4/3 ISOL RAIN STARTING EARLY MORNING VIS GOOD TO
MODERATE
URUGUAY SOUTH EAST COASTS: NE 4/3 PROB OF ISOL RAIN DURING THE EVENING VIS GOOD
TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR N 4 PROB OF RAIN STARTING EARLY
MORNING VIS GOOD TO MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): N 5 WITH GUSTS BACK NW 4 BY 24/1800
PROB OF DRIZZLE RAIN IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR N 6/5 WITH GUSTS BACK NW 4 BY
24/1800 PROB OF DRIZZLE RAIN IMPR STARTING EVENING VIS MODERATE OCNL POOR TO
GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR N 5 WITH GUSTS BACK SECTOR W 4/5
BY 24/0900 PROB OF RAIN IMPR STARTING EVENING VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S) N OF 50S: SECTOR E 6/5 VEER SECTOR W 4/5 BY
24/1500 PROB OF RAIN VIS POOR
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR E 4/5 PROB OF RAIN
STARTING EARLY MORNING VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54S - 55S): SW 4 VEER SECTOR E 3/4 BY 24/2100 UNSTABLE
VIS GOOD OCNL MODERATE
ISLAS MALVINAS COASTS: SW 6/5 WITH GUSTS VEER SECTOR E 5 WITH GUSTS BY 24/1500
PROB OF RAIN STARTING EVENING VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: SECTOR S 5/4 PROB OF SH RAIN IMPR
TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
W OF 40 - E OF 50W: SECTOR E 4 BACK NE 5 BY 24/2100 UNSTABLE VIS GOOD OCNL
MODERATE
REST OF THE AREA: SECTOR N 4/5 WITH GUSTS PROB OF RAIN STARTING NOON VIS GOOD
TO MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 6/5 WITH GUSTS PROB
OF SH RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE
REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY PROB OF SH RAIN AND SNOW
MIXTURE VIS POOR OCNL MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SW 6/5 WITH GUSTS
VEER SECTOR N 4/5 BY 24/1800 PROB OF ISOL RAIN VIS MODERATE
E OF 50 - S OF 45S: SW 6 WITH GUSTS VEER NW 6 WITH GUSTS BY 24/1500 PROB OF SH
RAIN AND SNOW MIXTURE VIS MODERATE
REST OF THE AREA: SECTOR N 6 WITH GUSTS PROB OF RAIN VIS POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 8 WITH GUSTS PROB OF SNOW FALL
VIS VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SW 7 GUST WITH 8 INTENSITY
PROB OF SH OF SNOW VIS POOR OCNL VERY POOR
W OF 50 - N OF 55S: SW 6 WITH GUSTS VEER NE 4 BY 24/2100 PROB OF SH RAIN AND
SNOW MIXTURE VIS MODERATE
REST OF THE AREA: SW 7 GUST WITH 8 INTENSITY PROB OF SH OF SNOW SPELLS OF GOOD
WEATHER VIS MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SW 6/5 WITH GUSTS DECR VRB 3 BY 24/1800
UNSTABLE VIS GOOD OCNL MODERATE
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 24, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1000/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-72S 76W-70W UNTIL 24/1500
1001/2026 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 24/2100
1002/2026 STRONG BARIC GRADIENT GERLACHE STRAIT MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-67S 70W-65W UNTIL 24/0900
1003/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 60S-67S 50W-30W UNTIL 24/0900
1004/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV NE DEEPENING WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST IN 64S-68S 59W-50W FROM 24/0600 UNTIL 24/1500
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 957HPA 64S 30W MOV E DPN
LOW 970HPA 64S 55W MOV E DPN
LOW 971HPA 64S 55W MOV E DPN
HIGH 1024HPA 61S 90W MOV E WKN EXTENDS RIDGE AT 61S 90W 63S 80W 65S 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 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-25
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 9 WITH GUSTS DECR SW 5/6 WITH GUSTS BY 24/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 7 WITH GUSTS INCR SW 8 WITH GUSTS BY 24/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 9 WITH GUSTS DECR SW 5/6 WITH GUSTS BY 24/1200 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 7 WITH GUSTS INCR SW 8 WITH GUSTS BY 24/0600 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SW 7/8 WITH GUSTS DECR SW 6/5 WITH GUSTS BY 24/1200 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS POOR TO MODERATE
MARGARITA BAY : SW 4/5 WITH GUSTS VEER NW 5/4 WITH GUSTS BY 24/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS POOR TO MODERATE
EREBUS Y TERROR GULF : SW 6/7 WITH GUSTS INCR SW 9 WITH GUSTS BY 24/0900 PROB OF COASTAL BLIZZARD VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 4/5 WITH GUSTS VEER SECTOR W 6/5 WITH GUSTS BY 24/1200 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 5/4 WITH GUSTS BY 24/1200 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 5/5 WITH GUSTS BY 24/1200 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 24/1200 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SW 7 GUST WITH 8 INTENSITY VEER SECTOR W 7/8 WITH GUSTS BY 24/1200 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=