1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-09-26, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 438: STRONG BARIC GRADIENT ON MOV E PROVOKES WINDS FORCE 8 WITH GUST IN
CENTRAL EAST SECTOR<
PART 2 GENERAL SYNOPSIS AT 21:00UTC
251400 UTC 1.SEA ICE LIMIT 5532S 02000W 5355S 02618W 5318S 03218W 5545S 03757W
5746S 04317W 5903S 04813W 6030S 05247W 6231S 05654W 5926S 06032W 5905S 06337W
6014S 06559W 6059S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5646S 04403W 28X25NM
D33B 5914S 04541W 21X12NM A76C 5435S 02625W 17X6NM A85 6027S 05226W 10X3NM
ICEBERG1 6041S 05226W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5716S 03845W 9X6NM
D33C 6157S 05422W 9X5NM ICEBERG2 5630S 04458W 5X3NM ICEBERG3 5852S 04802W 5X3NM
ICEBERG4 5723S 04826W 4X3NM ICEBERG5 5729S 04731W 3X1NM ICEBERG6 6054S 05305W
3X2NM 4.ICEBERGS AREA A5610S 02000W 5000S 02000W 5000S 03500W 5610S 03500W
B5610S 03500W 5000S 03500W 5400S 05000W 5930S 05000W C5930S 05000W 5400S 05000W
5900S 06716W 6045S 06716W
LOW 996HPA 47S 39W MOV SE WKN EXTENDS CFNT AT 47S 39W 41S 42W 35S 55W MOV E
CFNT AT 59S 28W 55S 41W 52S 54W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-27
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3/4 INCR 5 WITH GUSTS BY 26/1800 VIS GOOD
OUTER RIO DE LA PLATA: SECTOR E 3/4 INCR 5 WITH GUSTS BY 26/1800 VIS GOOD
URUGUAY SOUTH EAST COASTS: SECTOR E 3/4 VIS GOOD
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR S 3/4 BACK SECTOR E 4 BY 26/1500
VIS GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR S 3/4 BACK SECTOR E 4 BY
26/0900 VIS GOOD
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR S 4/3 BACK SECTOR E 4/5 WITH
GUSTS BY 26/1200 PROB OF ISOL RAIN STARTING EVENING VIS GOOD TO MODERATE
GOLFO DE SAN JORGE COASTS(45S - 48S): VRB 4 VEER SECTOR N BY 26/1200 PROB OF
ISOL RAIN STARTING NIGTH VIS GOOD TO MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): VRB 4 LOW PROB OF RAIN VIS GOOD OCNL
MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR S 5 WITH GUSTS VEER SECTOR W BY
26/1200 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE
ISLAS MALVINAS COASTS: SECTOR S 6/5 WITH GUSTS VEER SECTOR W 5/4 BY 26/1500 LOW
PROB OF RAIN AND SNOW MIXTURE VIS GOOD OCNL MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: NW 4/5 PROB OF RAIN STARTING NIGTH
VIS GOOD TO MODERATE
W OF 40W: SECTOR W 7/6 WITH GUSTS BACK SECTOR S BY 26/1800 VIS GOOD
REST OF THE AREA: NW 7/6 GUST WITH 8 INTENSITY PROB OF ISOL STORMS VIS POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: NW 6 WITH GUSTS INCR 8 WITH
GUSTS BY 26/0600 PROB OF RAIN VIS VERY POOR TO POOR
REST OF THE AREA: NW 8 WITH GUSTS BACK SECTOR W 5/4 BY 26/1500 PROB OF RAIN VIS
VERY POOR TO MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 7 GUST WITH 8
INTENSITY BACK SECTOR S 6 WITH GUSTS BY 26/1200 PROB OF RAIN VIS MODERATE OCNL
POOR
REST OF THE AREA: SECTOR S 5/6 WITH GUSTS LOW PROB OF RAIN AND SNOW MIXTURE VIS
MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W): SECTOR W 7/6 GUST WITH 8 INTENSITY BACK
SECTOR S 6/5 WITH GUSTS BY 26/1200 PROB OF SH OF SNOW VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W): SW 7/6 WITH GUSTS PROB OF SH OF SNOW
VIS POOR TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SW 6 WITH GUSTS VEER W 5 WITH GUSTS BY
26/1200 PROB OF SH OF SNOW STARTING EVENING VIS MODERATE TO POOR
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1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
00:00 UTC 26, SEPTEMBER 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
1182/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA SOUTHERN BELLINGSHAUSEN SEA MOV E WEAKENING PROVOKES WINDS FORCE 8 WITH GUST IN 62S-70S 90W-70W UNTIL 26/1800
1183/2026 STRONG BARIC GRADIENT SOUTHERN BELLINGSHAUSEN SEA MOV E WEAKENING WILL PROVOKE WINDS FORCE 9 FROM SECTOR W WITH GUST IN 68S-70S 90W-70W FROM 26/2100 UNTIL 27/1800
PART 2 GENERAL SYNOPSIS AT 21:00UTC
HIGH 993HPA 65S 58W MOV E WKN
LOW 962HPA 61S 26W MOV E WKN
STRONG BARIC GRADIENT 71S 87W 71S 84W 71S 80W 69S 80W MOV NE DPN
251400 UTC 1.SEA ICE LIMIT 5532S 02000W 5355S 02618W 5318S 03218W 5545S 03757W 5746S 04317W 5903S 04813W 6030S 05247W 6231S 05654W 5926S 06032W 5905S 06337W 6014S 06559W 6059S 06716W 2.ICEBERGS GREATER THAN 10NM A81 5646S 04403W 28X25NM D33B 5914S 04541W 21X12NM A76C 5435S 02625W 17X6NM A85 6027S 05226W 10X3NM ICEBERG1 6041S 05226W 10X3NM 3.ICEBERGS SMALLER THAN 10NM D32 5716S 03845W 9X6NM D33C 6157S 05422W 9X5NM ICEBERG2 5630S 04458W 5X3NM ICEBERG3 5852S 04802W 5X3NM ICEBERG4 5723S 04826W 4X3NM ICEBERG5 5729S 04731W 3X1NM ICEBERG6 6054S 05305W 3X2NM 4.ICEBERGS AREA A5610S 02000W 5000S 02000W 5000S 03500W 5610S 03500W B5610S 03500W 5000S 03500W 5400S 05000W 5930S 05000W C5930S 05000W 5400S 05000W 5900S 06716W 6045S 06716W
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-09-27
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SW 6/7 WITH GUSTS VEER SECTOR W 5 BY 26/0900 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER STARTING NOON VIS MODERATE TO POOR
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 5 VEER SECTOR W 5/6 BY 26/1200 AFTERWARDS SECTOR W 6/7 BY 26/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SW 6/7 WITH GUSTS VEER SECTOR W 5 BY 26/0900 AFTERWARDS SW 6 BY 26/2100 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE MORNING VIS VERY POOR TO POOR OCNL MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 5 BACK SECTOR N 4/5 BY 26/1500 AFTERWARDS SECTOR W 6 BY 26/2100 PROB OF FOG AND MIST IN PATCHES PROB OFISOL SNOW FALL IMPR STARTING EVENING VIS POOR TO MODERATE
GERLACHE STRAIT : SW 5/4 VEER SECTOR W 4 BY 26/0600 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL IMPR STARTING EVENING VIS VERY POOR TO POOR OCNL MODERATE
MARGARITA BAY : SW 4 VEER SECTOR N 5/6 BY 26/0900 AFTERWARDS SECTOR W 5 BY 26/1800 PROB OF MIST PROB OFMOD SNOW FALL IMPR STARTING EVENING VIS VERY POOR TO POOR OCNL MODERATE
EREBUS Y TERROR GULF : SW 4/5 VEER SECTOR N 4 BY 26/0900 AFTERWARDS SECTOR W 5 BY 26/2100 PROB OF FOG AND MIST IN PATCHES WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE TO POOR OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 63S: SECTOR W 4/5 INCR SECTOR W 6/7 WITH GUSTS BY 26/0900 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SECTOR W 7/8 WITH GUSTS VEER NW 8 WITH GUSTS BY 26/0600 AFTERWARDS SECTOR W 6 WITH GUSTS BY 26/1800 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL IMPR STARTING NOON VIS VERY POOR TO POOR OCNL MODERATE
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NW 7/8 WITH GUSTS BACK SECTOR W 7/6 WITH GUSTS BY 26/1200 AFTERWARDS NW 6 BY 26/2100 PROB OF FOG PROB OFMOD SNOW FALL WORSENING STARTING EARLY MORNING VIS VERY POOR TO POOR
NORTHERN WEDDELL SEA W OF 35W: SW 4/5 VEER SECTOR W 4 BY 26/1500 AFTERWARDS SECTOR N 4 BY 26/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE OCNL POOR
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 5 BACK SW 5 BY 26/1200 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE
SOUTHERN WEDDELL SEA (68-78S 20-60W): SW 5/6 VEER SECTOR N 4/5 BY 26/1500 PROB OF MIST PROB OFISOL SNOW FALL WORSENING TOWARDS THE END OF THE PERIOD VIS MODERATE=