1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-22, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 339: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR W
WITH GUST IN SOUTH WEST AREA (50S- 60S AND 40W- 60W) FROM 22/1200
WARNING 338: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SW WITH
GUST IN DRAKE AREA (55S- 60S AND 60W- 67W) FROM 22/1200 UNTIL 22/2100
WARNING 337: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR W
WITH GUST BETWEEN 55S-60 S AND 20W-30W FROM 22/0300
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 979HPA 59S 43W MOV E DPN EXP BY 23/0000 EXTENDS CFNT AT 58S 46W 57S 49W 57S
53W MOV NE
LOW 1011HPA 39S 28W MOV SE WKN EXP BY 23/0000
HIGH 1020HPA 43S 65W MOV NE INTSF EXP 39S 57W BY 23/0000
STATIONARY FRONT 35S 43W 38S 36W 39S 31W
211400 UTC 1.SEA ICE LIMIT 5753S 02000W 5712S 02618W 5848S 03217W 5925S 03757W
5954S 04317W 6044S 04814W 6151S 05247W 6234S 05655W 6342S 06032W 6413S 06337W
6532S 06559W 6616S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6119S 05117W 21X12NM
A81 6042S 05250W 28X25NM A76C 5216S 03146W 16X6NM 3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 6151S 05210W 6X3NM 4.ICEBERGS AREA A6016S 02000W 4300S 02000W 5300S
04100W 6010S 04100W B6010S 04100W 5300S 04100W 6000S 05500W 6220S 05500W C6220S
05500W 6000S 05500W 6500S 06716W 6640S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-23
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 5 WITH GUSTS BACK E BY 22/2100 PROB OF ISOL IMPR
TOWARDS EVENING VIS MODERATE TO GOOD
OUTER RIO DE LA PLATA: SE 6/5 WITH GUSTS BACK E BY 22/2100 PROB OF ISOL RAIN
IMPR TOWARDS EVENING VIS MODERATE TO GOOD
URUGUAY SOUTH EAST COASTS: SECTOR S 4/5 WITH GUSTS PROB OF ISOL RAIN IMPR DURING
THE MORNING VIS MODERATE TO GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 4/5 WITH GUSTS BACK SECTOR E BY
22/1800 VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): VRB 3/4 INCR SECTOR N 5/6 WITH GUSTS
BY 22/1200 LOW PROB OF DRIZZLE IMPR DURING THE EARLY MORNING NEXT WORSENING
TOWARDS THE END OF THE PERIOD VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): VRB 3/4 INCR SECTOR N 5/6 WITH GUSTS BY
22/1200 LOW PROB OF DRIZZLE IMPR DURING THE EARLY MORNING NEXT WORSENING TOWARDS
THE END OF THE PERIOD VIS GOOD OCNL MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 4 VEER SECTOR N 5 WITH GUSTS BY
22/1500 LOW PROB OF DRIZZLE IMPR DURING THE EARLY MORNING NEXT WORSENING TOWARDS
THE END OF THE PERIOD VIS GOOD OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 5/4 WITH GUSTS BACK SECTOR S BY
22/2100 LOW PROB OF RAIN AND SNOW MIXTURE IMPR TOWARDS EVENING VIS MODERATE TO
GOOD
FIN DEL MUNDO COASTS(54S - 55S): SW 6/7 GUST WITH 8 INTENSITY LOW PROB OF RAIN
AND SNOW MIXTURE VIS MODERATE TO POOR OCNL VERY POOR
ISLAS MALVINAS COASTS: SW 6 WITH GUSTS VEER W 7 GUST WITH 8 INTENSITY BY 22/2100
PROB OF RAIN AND SNOW MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE TO POOR OCNL
VERY POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: NW 7 GUST WITH 8 INTENSITY BACK
SECTOR S 6 WITH GUSTS BY 22/2100 PROB OF RAIN VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR S 5/6 WITH GUSTS PROB OF ISOL RAIN NXT RAIN VIS
MODERATE OCNL POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 42S: VRB 3/4 INCR SECTOR S 5 BY
22/1800 PROB OF ISOL RAIN NXT RAIN VIS MODERATE
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF ISOL RAIN VIS
MODERATE TO POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR S 5/6 WITH
GUSTS PROB OF ISOL RAIN VIS MODERATE
W OF 50 - N OF 45S: VRB 4/3 INCR SECTOR N 5 BY 22/2100 PROB OF ISOL RAIN IMPR
TOWARDS EVENING VIS MODERATE TO GOOD
REST OF THE AREA: SECTOR W 6 GUST WITH 8 INTENSITY PROB OF RAIN AND SNOW
MIXTURE VIS MODERATE OCNL POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR W 7 GUST WITH
8 INTENSITY PROB OF SNOW FALL VIS POOR OCNL VERY POOR
E OF 30 - S OF 55S: SECTOR W 7/8 WITH GUSTS PROB OF SNOW FALL VIS VERY POOR TO
POOR
W OF 30 - N OF 55S: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF SNOW FALL VIS
POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY BACK SECTOR S BY 22/0900
VEER SECTOR W BY 22/2100 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 55S: SECTOR W 6/7 GUST
WITH 8 INTENSITY INCR 8 WITH GUSTS BY 22/2100 PROB OF RAIN AND SNOW MIXTURE NXT
SNOW FALL VIS VERY POOR TO POOR
E OF 50 - S OF 55S: SW 6/7 WITH GUSTS VEER W BACK SECTOR S BY 22/1800 PROB OF
SNOW FALL VIS POOR OCNL VERY POOR
REST OF THE AREA: SW 7 GUST WITH 8 INTENSITY VEER SECTOR W 8 WITH GUSTS BY
22/1500 PROB OF SNOW FALL VIS VERY POOR TO POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SW 7 GUST WITH 8 INTENSITY INCR 8 WITH GUSTS
BY 22/1200 DECR 7 BY 22/2100 PROB OF SNOW FALL VIS VERY POOR TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 22, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
989/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV NE DEEPENING PROVOKES WINDS FORCE 8 FROM SW WITH GUST IN 64S-72S 90W-70W UNTIL 22/1800
990/2026 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-60W UNTIL 23/0000
PART 2 GENERAL SYNOPSIS AT 21:00UTC
LOW 976HPA 60S 42W MOV E DPN
LOW 987HPA 62S 54W MOV E WKN
RIDGE 65S 90W 62S 80W 60S 75W MOV NE INTSF
211400 UTC 1.SEA ICE LIMIT 5753S 02000W 5712S 02618W 5848S 03217W 5925S 03757W 5954S 04317W 6044S 04814W 6151S 05247W 6234S 05655W 6342S 06032W 6413S 06337W 6532S 06559W 6616S 06716W 2.ICEBERGS GREATER THAN 10NM D33B 6119S 05117W 21X12NM A81 6042S 05250W 28X25NM A76C 5216S 03146W 16X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6151S 05210W 6X3NM 4.ICEBERGS AREA A6016S 02000W 4300S 02000W 5300S 04100W 6010S 04100W B6010S 04100W 5300S 04100W 6000S 05500W 6220S 05500W C6220S 05500W 6000S 05500W 6500S 06716W 6640S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-23
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 7/8 WITH GUSTS DECR SW 5 WITH GUSTS BY 22/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SW 5/6 WITH GUSTS INCR SW 7 GUST WITH 8 INTENSITY BY 22/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NIGTH VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SW 7/8 WITH GUSTS DECR SW 5 WITH GUSTS BY 22/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SW 5/6 WITH GUSTS INCR SW 7 GUST WITH 8 INTENSITY BY 22/1500 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER STARTING NIGTH VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SW 3/4 INCR SW 7 GUST WITH 8 INTENSITY BY 22/1800 PROB OF FOG AND MIST IN PATCHES IMPR STARTING EARLY MORNING VIS VERY POOR TO MODERATE OCNL GOOD
MARGARITA BAY : SECTOR E 3/4 BACK NE 4/3 BY 22/1200 PROB OF MIST VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SECTOR S 4/5 WITH GUSTS VEER SW 5/7 WITH GUSTS BY 22/1800 VIS GOOD
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SW 5/6 WITH GUSTS INCR SW 7 GUST WITH 8 INTENSITY BY 22/0600 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 7/8 WITH GUSTS DECR SW 5 WITH GUSTS BY 22/1200 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 7/8 WITH GUSTS DECR SW 6 WITH GUSTS BY 22/1500 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: SW 4/5 INCR SW 7 WITH GUSTS BY 22/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SW 3/4 WITH GUSTS BACK SECTOR S 5 BY 22/1500 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 INCR SE 5 BY 22/1800 VIS GOOD=