1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 05, MAY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
610/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV E DEEPENING PROVOKES WINDS FORCE 9 FROM SECTOR S GUST WITH 10 INTENSITY IN 60S-70S 46W-30W UNTIL 06/0000
611/2026 STRONG BARIC GRADIENT NORTHER BELLINGSHAUSEN SEA MOV E DEEPENING PROVOKES WINDS FORCE 8 FROM NE GUST WITH 9 INTENSITY IN 63S-70S 90W-80W UNTIL 05/2100
PART 2 GENERAL SYNOPSIS AT 09:00UTC
HIGH 1008HPA 60S 65W MOV NE INTSF
HIGH 1006HPA 68S 58W MOV NE WKN
LOW 983HPA 64S 84W MOV SE DPN
041400 UTC 1.SEA ICE LIMIT 6833S 02000W 6648S 02845W 6311S 03120W 6508S 03309W 6159S 03802W 6301S 04248W 6208S 05113W 6224S 05316W 6308S 05713W 6336S 06028W 6426S 06356W 6645S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5832S 03629W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4931S 02715W 6X3NM ICEBERG2 5056S 02739W 5X3NM ICEBERG3 4726S 02734W 2X1NM ICEBERG4 4649S 02721W 4X2NM ICEBERG5 5821S 03318W 3X1NM ICEBERG6 5755S 03622W 2X1NM 4.ICEBERGS AREA A6843S 02000W 4058S 02000W 4158S 03700W 6215S 03700W B6215S 03700W 4158S 03700W 5858S 05002W 6233S 05002W C6233S 05002W 5858S 05002W 6227S 06716W 6859S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-05-6
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 3/4 VEER SECTOR N 4/5 BY 05/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 8/7 WITH GUSTS DECR SECTOR S 5 WITH GUSTS BY 05/1800 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 3/4 VEER SECTOR N 4/5 BY 05/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR W 6/5 WITH GUSTS INCR SW 7 WITH GUSTS BY 05/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE OCNL GOOD
GERLACHE STRAIT : SECTOR E 3/4 VEER SE 3/4 BY 05/1800 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE NIGTH VIS GOOD TO MODERATE OCNL POOR
MARGARITA BAY : NE 3/4 VEER SECTOR E 5/6 BY 05/2100 PROB OF MIST PROB OFISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 6/5 DECR SECTOR S 4/3 BY 6/0000 AFTERWARDS NE 3/4 BY 6/0300 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NE 5/7 WITH GUSTS BACK NW 6/5 BY 05/1800 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL IMPR DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: NE 6/7 GUST WITH 8 INTENSITY BACK NE 5/6 WITH GUSTS BY 05/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING TOWARDS NOON VIS GOOD TO MODERATE OCNL POOR
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): NE 6/7 WITH GUSTS INCR SECTOR E 8 WITH GUSTS BY 05/1500 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL WORSENING TOWARDS NOON VIS MODERATE TO VERY POOR
NORTHERN WEDDELL SEA N OF 64S: SECTOR S 9 WITH GUSTS DECR SW 5 WITH GUSTS BY 6/0000 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR S 8 WITH GUSTS DECR SECTOR S 6 WITH GUSTS BY 05/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4 BACK NE 5/4 BY 05/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR DURING THE EVENING VIS MODERATE TO GOOD=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-05-5, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 189: LOW 975HPA AT 51S 46W MOV SE DEEPENING EXPECTED 58S 23W BY 06/0000
PROVOKES WINDS FORCE 8 AROUND ITSELF BETWEEN 45S-50S 50W-20W
WARNING 188: STRONG BARIC GRADIENT ON MOV E WILL PROVOKE WINDS FORCE 8 FROM
SECTOR S WITH GUST BETWEEN 50S-60S 55W-40W FROM 05/0300
WARNING 187: STRONG BARIC GRADIENT ON WILL PROVOKE WINDS FORCE 8 FROM SECTOR N
WITH GUST BETWEEN 50S-55S 30W-20W FROM 05/0600 UNTIL 05/1800
WARNING 186: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 WITH GUST BETWEEN
35S-45S AND 50W-20W
WARNING 185: STRONG BARIC GRADIENT ON PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 55S-60S AND 40W-20W UNTIL 05/0900
PART 2 GENERAL SYNOPSIS AT 21:00UTC
041400 UTC 1.SEA ICE LIMIT 6833S 02000W 6648S 02845W 6311S 03120W 6508S 03309W
6159S 03802W 6301S 04248W 6208S 05113W 6224S 05316W 6308S 05713W 6336S 06028W
6426S 06356W 6645S 06716W 2.ICEBERGS GREATER THAN 10NM A76C 5832S 03629W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 4931S 02715W 6X3NM ICEBERG2 5056S 02739W
5X3NM ICEBERG3 4726S 02734W 2X1NM ICEBERG4 4649S 02721W 4X2NM ICEBERG5 5821S
03318W 3X1NM ICEBERG6 5755S 03622W 2X1NM 4.ICEBERGS AREA A6843S 02000W 4058S
02000W 4158S 03700W 6215S 03700W B6215S 03700W 4158S 03700W 5858S 05002W 6233S
05002W C6233S 05002W 5858S 05002W 6227S 06716W 6859S 06716W
LOW 975HPA 51S 46W MOV SE DPN EXP 58S 23W BY 06/0000 EXTENDS CFNT AT 47S 43W 42S
43W 38S 49W MOV E
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-05-6
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR N 4 DECR VRB 3 INCR SECTOR E 4 BY 5/2300 VIS
GOOD
OUTER RIO DE LA PLATA: NW 4 DECR VRB 3 INCR SECTOR E 4 BY 5/2300 VIS GOOD
URUGUAY SOUTH EAST COASTS: NW 5/4 DECR VRB 3 BY 5/1800 LOW PROB OF ISOL RAIN
STORMS TOWARDS THE END OF THE PERIOD VIS GOOD TO MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): SECTOR W 5/4 DECR VRB 3 BY 5/2100 VIS
GOOD
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR W 5 WITH GUSTS DECR VRB 4/3 BY
5/1800 LOW PROB OF ISOL RAIN TOWARDS THE END OF THE PERIOD VIS GOOD OCNL
MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 6/5 WITH GUSTS DECR VRB 4/3 BY
5/1500 LOW PROB OF RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 6/5 WITH GUSTS VEER SECTOR N 4
BY 5/2100 LOW PROB OF ISOL RAIN IMPR DURING THE MORNING VIS MODERATE TO GOOD
SOUTH PATAGONIA COASTS(48S - 54S) N OF 51S: VRB 4/3 INCR SECTOR N 5 WITH GUSTS
BY 5/1200 PROB OF ISOL RAIN VIS MODERATE
SOUTH PATAGONIA COASTS(48S - 54S) REST OF THE AREA: SECTOR E 6/5 WITH GUSTS
BACK SECTOR N BY 5/1800 BACK SECTOR W BY 5/2300 PROB OF ISOL RAIN VIS MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR E 6/5 WITH GUSTS BACK SECTOR N BY
5/1500 PROB OF RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
ISLAS MALVINAS COASTS: SECTOR S 6/5 WITH GUSTS DECR VRB 4/3 BY 5/2300 PROB OF
RAIN AND SNOW MIXTURE VIS MODERATE OCNL POOR
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: W 6 WITH GUSTS VEER NW 7 WITH GUSTS
BY 5/1200 INCR 8 WITH GUSTS BY 5/2100 PROB OF ISOL RAIN STORMS STARTING EARLY
MORNING VIS MODERATE TO VERY POOR
W OF 30 - E OF 40W: NW 7/8 WITH GUSTS PROB OF ISOL RAIN STORMS VIS VERY POOR TO
POOR
W OF 40 - E OF 50W: NW 8/7 WITH GUSTS DECR 6/5 WITH GUSTS BY 5/1200 LOW PROB OF
ISOL RAIN IMPR TOWARDS EVENING VIS VERY POOR TO MODERATE OCNL GOOD
REST OF THE AREA: SECTOR W 6/5 WITH GUSTS VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30 - N OF 45S: SECTOR W 7/6 WITH
GUSTS VEER NW 8 WITH GUSTS BY 5/0900 PROB OF SH RAIN STARTING EARLY MORNING VIS
VERY POOR TO POOR
E OF 30 - S OF 45S: SECTOR W 7/6 WITH GUSTS VEER N 8 WITH GUSTS BY 5/0900 PROB
OF RAIN STARTING EARLY MORNING VIS VERY POOR TO POOR
W OF 30 - N OF 45S: NW 8 WITH GUSTS BACK W BY 5/1500 DECR 7 WITH GUSTS BY
5/2100 PROB OF SH RAIN VIS VERY POOR TO POOR
REST OF THE AREA: NW 8 WITH GUSTS BACK W BY 5/1800 PROB OF SH RAIN NEXT RAIN
AND SNOW MIXTURE TOWARDS THE END OF THE PERIOD VIS VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50 - N OF 45S: SECTOR W 8 WITH
GUSTS DECR 7/6 BY 5/2100 PROB OF SH RAIN VIS VERY POOR TO POOR OCNL MODERATE
E OF 50 - S OF 45S: SECTOR W 8 WITH GUSTS BACK SW BY 5/1200 PROB OF RAIN NEXT
RAIN AND SNOW MIXTURE STARTING EVENING VIS VERY POOR
W OF 50 - N OF 45S: SECTOR S 7/6 DECR VRB 4 BY 5/1800 LOW PROB OF ISOL RAIN
DURING THE MORNING VIS POOR TO GOOD
REST OF THE AREA: SECTOR W 7 GUST WITH 8 INTENSITY BACK SECTOR S 6 WITH GUSTS
BY 5/0300 DECR VRB 4 BY 5/1800 PROB OF ISOL RAIN IMPR STARTING EVENING VIS POOR
TO MODERATE OCNL GOOD
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30 - N OF 55S: SECTOR W 7 GUST WITH
8 INTENSITY VEER SECTOR N 8 WITH GUSTS BY 5/0600 BACK SECTOR W 7 WITH GUSTS BY
5/2100 PROB OF RAIN AND SNOW MIXTURE VIS VERY POOR TO POOR
W OF 30 - N OF 55S: SECTOR N 7 GUST WITH 8 INTENSITY BACK SW BY 5/1200 PROB OF
RAIN AND SNOW MIXTURE VIS POOR OCNL VERY POOR
REST OF THE AREA: SECTOR W 8 WITH GUSTS BACK SECTOR S 6/7 GUST WITH 8 INTENSITY
BY 5/0900 PROB OF SNOW FALL VIS VERY POOR TO POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 55 - N OF 55S: SECTOR S 6/7 GUST
WITH 8 INTENSITY INCR 8 WITH GUSTS BY 5/1200 PROB OF RAIN AND SNOW MIXTURE IMPR
TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR
E OF 55 - S OF 55S: SECTOR S 7/8 WITH GUSTS DECR 7 BY 5/2100 PROB OF SNOW FALL
IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO POOR
W OF 55 - N OF 55S: SECTOR S 7/6 GUST WITH 8 INTENSITY PROB OF RAIN AND SNOW
MIXTURE IMPR TOWARDS THE END OF THE PERIOD VIS POOR OCNL VERY POOR TO MODERATE
REST OF THE AREA: SECTOR S 7/6 GUST WITH 8 INTENSITY DECR 5 BY 5/1800 PROB OF
SNOW FALL IMPR STARTING EARLY MORNING VIS POOR OCNL VERY POOR TO MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR S 6/5 WITH GUSTS BACK SECTOR E BY
5/0300 BACK SECTOR N 6 WITH GUSTS BY 5/1800 PROB OF RAIN AND SNOW MIXTURE SPELLS
OF GOOD WEATHER VIS MODERATE
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