1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-06-23, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 278: LOW 990HPA AT 59S 59W MOV NE DEEPENING EXPECTED 58S 40W BY 24/0000
WILL PROVOKE WINDS FORCE 8 FROM SW WITH GUST BETWEEN 55S-60S 50W-40W FROM
23/1500
WARNING 276: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 9 FROM W WITH
GUST BETWEEN 50S-60S AND 20W-30W UNTIL 23/1500
WARNING 277: LOW 1002HPA AT 34S 48W DEEPENING PROVOKES WINDS FORCE 10 AROUND
ITSELF WITH GUST BETWEEN 35S-50S AND 35W-52W
PART 2 GENERAL SYNOPSIS AT 21:00UTC
221400 UTC 1.SEA ICE LIMIT 6043S 02000W 5803S 02618W 5846S 03217W 5805S 03758W
5816S 04316W 5910S 04813W 6102S 05247W 6142S 05655W 6328S 06033W 6408S 06337W
6512S 06559W 6554S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5325S 03215W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4911S 02332W 4X1NM ICEBERG2 6154S 05536W
2X1NM 4.ICEBERGS AREA A6125S 02000W 4406S 02000W 5200S 03800W 5825S 03800W
B5825S 03800W 5200S 03800W 6000S 05500W 6106S 05500W C6106S 05500W 6000S 05500W
6200S 06716W 6829S 06716W
LOW 1002HPA 34S 48W MOV SE DPN EXP 43S 41W BY 24/0000 ASOCIATED WITH OFNT AT 36S
49W 37S 54W 34S 54W
LOW 990HPA 59S 59W MOV NE DPN EXP 58S 40W BY 24/0000
RIDGE 43S 47W 43S 39W 44S 31W
CFNT AT FIN DEL MUNDO COASTS MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-06-24
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR W 5 WITH GUSTS VIS GOOD
OUTER RIO DE LA PLATA: SW 6/5 WITH GUSTS PROB OF ISOL SH RAIN VIS MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR W 6/7 GUST WITH 8 INTENSITY PROB OF ISOL SH
RAIN VIS MODERATE OCNL POOR
MAR DEL PLATA COASTS(3617S - 3830S): SW 5/6 WITH GUSTS PROB OF ISOL SH VIS
MODERATE
RINCON BAHIA BLANCA COASTS(3830S - 41S): SW 5 WITH GUSTS BACK S BY 23/2100
PROB OF ISOL SH VIS MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 5/6 WITH GUSTS LOW PROB OF
ISOL SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR S 5/6 WITH GUSTS DECR VRB 4 BY
23/2300 PROB OF ISOL RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 6 WITH GUSTS BACK SECTOR S 7/6
GUST WITH 8 INTENSITY BY 23/0300 DECR VRB 4 BY 23/2300 PROB OF ISOL RAIN
STARTING EARLY MORNING VIS MODERATE OCNL POOR
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 6 WITH GUSTS BACK SECTOR S 7/6 GUST
WITH 8 INTENSITY BY 23/0300 VEER SECTOR N 5 BY 23/2100 PROB OF RAIN AND SNOW
MIXTURE SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR W 6 WITH GUSTS BACK SECTOR S 6/4 BY 23/1500 LOW
PROB OF ISOL RAIN VIS MODERATE OCNL GOOD
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 35W: SECTOR N 6/7 GUST WITH 8 INTENSITY
PROB OF ISOL SH RAIN VIS MODERATE TO POOR OCNL VERY POOR
W OF 35 - E OF 52W: SECTOR W 8/10 WITH GUSTS PROB OF DRIZZLE STORMS VIS VERY
POOR
REST OF THE AREA: SECTOR W 6/7 GUST WITH 8 INTENSITY DECR 6 BY 23/2100 PROB OF
ISOL SH RAIN VIS POOR OCNL VERY POOR TO MODERATE
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 35 - N OF 45S: SECTOR N 5/6 WITH
GUSTS INCR 7 GUST WITH 8 INTENSITY BY 23/2100 PROB OF SH RAIN STARTING EARLY
MORNING VIS MODERATE TO POOR
E OF 35 - S OF 45S: SECTOR W 7 GUST WITH 8 INTENSITY VEER SECTOR N 6 WITH GUSTS
BY 23/1500 PROB OF ISOL RAIN NEXT RAIN VIS POOR OCNL VERY POOR
W OF 35 - N OF 45S: SECTOR N 5 WITH GUSTS VEER SECTOR E 6/8 WITH GUSTS BY
23/1500 BACK SECTOR N 9 BY 23/2100 PROB OF ISOL RAIN NEXT RAIN VIS MODERATE TO
VERY POOR
REST OF THE AREA: SECTOR N 5 WITH GUSTS DECR VRB 3 BY 23/1200 INCR SE 7 WITH
GUSTS BY 23/2100 PROB OF RAIN SPELLS OF GOOD WEATHER VIS MODERATE TO POOR OCNL
VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 52 - N OF 45S: SECTOR E 6/7 GUST
WITH 8 INTENSITY BACK SECTOR S 9 WITH GUSTS BY 23/0900 PROB OF RAIN NEXT HVY
RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR S 5/6 WITH GUSTS PROB OF ISOL RAIN VIS MODERATE OCNL
POOR
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR W 9 WITH GUSTS DECR 7/6
WITH GUSTS BY 23/1500 VEER SECTOR N 5 BY 23/2100 PROB OF RAIN AND SNOW MIXTURE
VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS VEER SECTOR N BY 23/1500 BACK SECTOR W
7 GUST WITH 8 INTENSITY BY 23/2100 PROB OF ISOL RAIN NEXT RAIN AND SNOW MIXTURE
VIS MODERATE TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR W 5 WITH
GUSTS BACK SECTOR S 6 WITH GUSTS BY 23/2100 LOW PROB OF ISOL RAIN NEXT SNOW FALL
STARTING EVENING VIS MODERATE TO POOR
E OF 50 - S OF 45S: SECTOR W 5/6 WITH GUSTS BACK SW 7/8 WITH GUSTS BY 23/1500
PROB OF SNOW FALL VIS MODERATE TO POOR OCNL VERY POOR
W OF 50 - N OF 45S: SECTOR W 5 WITH GUSTS BACK SECTOR S 6 WITH GUSTS BY 23/1200
PROB OF ISOL SNOW FALL STARTING EARLY MORNING VIS GOOD TO MODERATE OCNL POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS BACK SECTOR S 7 GUST WITH 8 INTENSITY
BY 23/0600 PROB OF SNOW FALL VIS POOR OCNL VERY POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 6 WITH GUSTS BACK SECTOR S 7 GUST
WITH 8 INTENSITY BY 23/0300 VEER SECTOR W 6/5 BY 23/1500 PROB OF RAIN AND SNOW
MIXTURE VIS MODERATE TO POOR
-----------------------------------------------------------------
NNNN=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 22, JUNE 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
825/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM SECTOR W WITH GUST IN 64S-69S 90W-70W UNTIL 22/2100
826/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 60S-65S 40W-30W UNTIL 22/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 970HPA 70S 82W MOV E WKN
LOW 959HPA 67S 35W MOV E DPN
RIDGE 60S 88W 63S 80W 64S 72W MOV NE WKN
211400 UTC 1.SEA ICE LIMIT 6043S 02000W 5803S 02618W 5846S 03217W 5805S 03758W 5816S 04316W 5910S 04813W 6102S 05247W 6142S 05655W 6328S 06033W 6408S 06337W 6512S 06559W 6554S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5337S 03143W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4911S 02332W 4X1NM ICEBERG2 6145S 05555W 2X1NM 4.ICEBERGS AREA A6125S 02000W 4406S 02000W 5200S 03800W 5825S 03800W B5825S 03800W 5200S 03800W 6000S 05500W 6106S 05500W C6106S 05500W 6000S 05500W 6200S 06716W 6829S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-06-23
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SE 3/4 VEER SW 5/6 BY 22/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR W 5/6 BACK SW 4/5 BY 22/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SE 3/4 VEER SW 5/6 BY 22/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 5/6 BACK SW 4/5 BY 22/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SECTOR W 3/4 VEER NW 5/4 BY 22/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS THE END OF THE PERIOD VIS POOR TO MODERATE
MARGARITA BAY : NW 4/5 VEER NE 4/3 BY 23/0300 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 : SECTOR W 6/5 WITH GUSTS BACK SW 5/6 WITH GUSTS BY 22/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING STARTING EARLY MORNING VIS GOOD TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: SECTOR W 4/5 BACK SW 6/7 WITH GUSTS BY 22/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 7/8 WITH GUSTS VEER NW 7/5 BY 22/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE NIGTH VIS POOR TO MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 4/3 VEER SW 5/4 BY 23/0000 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
NORTHERN WEDDELL SEA N OF 65S: SECTOR W 8 WITH GUSTS VEER NW 6/5 WITH GUSTS BY 22/1800 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SE 6/7 WITH GUSTS VEER SECTOR S 7 WITH GUSTS BY 22/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SE 4/5 BACK SECTOR E 4/3 BY 23/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EARLY MORNING VIS POOR TO MODERATE OCNL GOOD=