1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 26, MARCH 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
401/2026 STRONG BARIC GRADIENT EREBUS Y TERROR GULF MOV E WEAKENING PROVOKES WINDS FORCE 8 FROM SW GUST WITH 9 INTENSITY IN 63S-66S 58W-52W UNTIL 26/2100
402/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE WEAKENING PROVOKES WINDS FORCE 8 FROM SECTOR N GUST WITH 9 INTENSITY IN 60S-64S 50W-30W UNTIL 26/1800
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 958HPA 62S 47W MOV SE DPN
LOW 954HPA 70S 45W MOV E DPN
LOW 966HPA 63S 65W MOV E WKN
RIDGE 60S 80W 63S 80W 66S 80W MOV E WKN
251400 UTC 1.SEA ICE LIMIT 7127S 02000W 6707S 03002W 6121S 03242W 6107S 03816W 6123S 04347W 6212S 05011W 6347S 05346W 6309S 05529W 6354S 05659W 6341S 06040W 6504S 06406W 6621S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5854S 03638W 16X7NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5154S 03244W 5X2NM ICEBERG2 4806S 03112W 3X1NM ICEBERG3 4847S 03022W 4X2NM ICEBERG4 4820S 03004W 4X1NM ICEBERG5 4827S 03001W 3X2NM ICEBERG6 4815S 02946W 2X2NM ICEBERG7 4831S 03036W 9X7NM ICEBERG8 5013S 03402W 9X7NM 4.ICEBERGS AREA A 6500S 02000W 4600S 02000W 4600S 03700W 6135S 03700W B 6135S 03700W 4600S 03700W 5700S 05000W 6230S 05000W C 6230S 05000W 5700S 05000W 6500S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-27
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: SECTOR W 5/6 GUST WITH 8 INTENSITY BACK SW 6 BY 26/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: SECTOR S 7/8 WITH GUSTS VEER SW 6/5 BY 26/1800 AFTERWARDS SW 4/5 BY 27/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
MAR DE LA FLOTA COASTS W OF 60W: SECTOR W 5/6 GUST WITH 8 INTENSITY BACK SW 6 BY 26/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO GOOD
MAR DE LA FLOTA COASTS REST OF THE AREA: SECTOR S 7/8 WITH GUSTS VEER SW 5 BY 26/1800 AFTERWARDS SW 4/5 BY 27/0000 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS MODERATE TO POOR
GERLACHE STRAIT : NE 4 VEER SECTOR E 4/5 BY 27/0600 PROB OF MIST IMPR DURING THE MORNING VIS MODERATE TO GOOD
MARGARITA BAY : NE 4 VEER SECTOR E 3/4 BY 27/0000 PROB OF ISOL SNOW FALL WORSENING DURING THE EARLY MORNING VIS GOOD TO MODERATE
EREBUS Y TERROR GULF : SW 9 WITH GUSTS DECR SW 10 BY 27/0000 PROB OF FOG AND MIST IN PATCHES BLIZZARD PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS VERY POOR TO MODERATE
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA W OF 80W: SECTOR W 3/4 VEER NW 4/5 BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO POOR
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 7/5 WITH GUSTS VEER SECTOR W 4/5 BY 26/1800 PROB OF MIST PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS POOR TO MODERATE OCNL GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SECTOR S 3/4 BACK SE 4/3 BY 26/2100 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING EARLY MORNING VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA W OF 40W: SECTOR N 8 WITH GUSTS BACK SECTOR W 6/5 WITH GUSTS BY 26/2100 PROB OF FOG AND MIST IN PATCHES PROB OFINTERMITTENT SNOW FALL IMPR TOWARDS THE END OF THE PERIOD VIS VERY POOR TO MODERATE
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR N 9 WITH GUSTS DECR SECTOR N 6/5 WITH GUSTS BY 26/1800 PROB OF FOG AND MIST IN PATCHES PROB OFMOD SNOW FALL SPELLS OF GOOD WEATHER DURING THE EVENING VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): NE 7 GUST WITH 8 INTENSITY VEER SECTOR E 8 WITH GUSTS BY 26/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL WORSENING DURING THE EVENING VIS MODERATE TO VERY POOR=
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-03-26, 12:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 127: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 FROM SECTOR N WITH
GUST BETWEEN 50S-60S AND 30W-40W
WARNING 126: LOW 957HPA AT 61S 48W PROVOKES WINDS FORCE 8 FROM SECTOR W WITH
GUST BETWEEN 50S-60S AND 40W-50W
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 957HPA 61S 48W MOV SE NC EXTENDS CFNT AT 59S 37W 54S 37W 42S 61W MOV E
ASOCIATED WITH OFNT AT 60S 37W 63S 44W 59S 52W
HIGH 1020HPA 36S 52W MOV E INTSF EXP 35S 40W BY 27/1200
STRONG BARIC GRADIENT SOUTH PATAGONIA COASTS FIN DEL MUNDO COASTS ISLAS MALVINAS
COASTS MOV E WKN
251400 UTC 1.SEA ICE LIMIT 7127S 02000W 6707S 03002W 6121S 03242W 6107S 03816W
6123S 04347W 6212S 05011W 6347S 05346W 6309S 05529W 6354S 05659W 6341S 06040W
6504S 06406W 6621S 06717W 2.ICEBERGS GREATER THAN 10NM A76C 5854S 03638W 16X7NM
3.ICEBERGS SMALLER THAN 10NM ICEBERG1 5154S 03244W 5X2NM ICEBERG2 4806S 03112W
3X1NM ICEBERG3 4847S 03022W 4X2NM ICEBERG4 4820S 03004W 4X1NM ICEBERG5 4827S
03001W 3X2NM ICEBERG6 4815S 02946W 2X2NM ICEBERG7 4831S 03036W 9X7NM ICEBERG8
5013S 03402W 9X7NM 4.ICEBERGS AREA A 6500S 02000W 4600S 02000W 4600S 03700W
6135S 03700W B 6135S 03700W 4600S 03700W 5700S 05000W 6230S 05000W C 6230S
05000W 5700S 05000W 6500S 06716W 6700S 06716W
LOW 1005HPA 43S 20W MOV E NC EXTENDS CFNT AT 43S 17W 39S 17W 34S 27W MOV E
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-27
COASTAL AREAS:
INNER RIO DE LA PLATA: SECTOR E 3 UNSTABLE STARTING NIGTH MIST DISSIPATING MIST
STARTING EARLY MORNING VIS GOOD OCNL MODERATE
OUTER RIO DE LA PLATA: SECTOR E 3 TEMPO VEER 4 UNSTABLE STARTING NIGTH MIST
DISSIPATING MIST STARTING EARLY MORNING VIS GOOD OCNL MODERATE
URUGUAY SOUTH EAST COASTS: SECTOR E 3 INCR 4 MIST DISSIPATING PROB OF MIST
STARTING EARLY MORNING VIS GOOD OCNL MODERATE
MAR DEL PLATA COASTS(3617S - 3830S): NE 3/4 MIST FOG PATCHES DISSIPATING PROB
OF MIST FOG PATCHES STARTING EARLY MORNING VIS GOOD OCNL POOR
RINCON BAHIA BLANCA COASTS(3830S - 41S): SECTOR N 3/4 MIST FOG PATCHES
DISSIPATING VIS GOOD OCNL MODERATE
PENINSULA DE VALDES COASTS(41S - 45S): SECTOR W 3 VEER SECTOR N 3/4 VIS GOOD
GOLFO DE SAN JORGE COASTS(45S - 48S): SECTOR W 5 PROB OF ISOL RAIN VIS GOOD
OCNL MODERATE
SOUTH PATAGONIA COASTS(48S - 54S): SECTOR W 7/6 WITH GUSTS VEER NW 6/5 PROB OF
RAIN AND SNOW MIXTURE IMPR VIS POOR TO MODERATE
FIN DEL MUNDO COASTS(54S - 55S): SECTOR W 7/6 WITH GUSTS PROB OF SNOW FALL VIS
POOR
ISLAS MALVINAS COASTS: SECTOR W 7 WITH GUSTS VEER NW 6 PROB OF SNOW FALL IMPR
VIS POOR TO MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 30W: SW 5 BACK S PROB OF SH IMPR VIS
MODERATE TO GOOD
E OF 40 - W OF 30W: SECTOR S 4/3 VIS GOOD
REST OF THE AREA: VRB 3 BACK SECTOR N VIS GOOD
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) N OF 45S: SECTOR W 4/5 BACK SW 5 PROB
OF ISOL RAIN VIS GOOD OCNL MODERATE
SE OF THE REGION: SECTOR S 3 VEER SECTOR W 6/7 WITH GUSTS PROB OF RAIN SPELLS
OF GOOD WEATHER VIS MODERATE OCNL POOR
REST OF THE AREA: SECTOR N 7 WITH GUSTS BACK SECTOR W 7/6 WITH GUSTS PROB OF
RAIN IMPR VIS POOR TO MODERATE
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) N OF 45S: SECTOR W 5 WITH GUSTS BACK
SECTOR N 4/5 VIS MODERATE TO GOOD
SE OF THE REGION: NW 7 WITH GUSTS BACK SECTOR W 7/6 WITH GUSTS PROB OF RAIN
IMPR VIS POOR
REST OF THE AREA: SECTOR W 7/6 WITH GUSTS VEER NW 5 PROB OF SH RAIN AND SNOW
MIXTURE IMPR VIS POOR TO MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SECTOR N 6/7 WITH GUSTS BACK
SECTOR W 8/7 WITH GUSTS PROB OF SNOW FALL VIS POOR
REST OF THE AREA: SECTOR N 8 WITH GUSTS BACK SECTOR W 8/7 WITH GUSTS PROB OF
SNOW FALL VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) E OF 50W: SECTOR W 8/7 WITH GUSTS PROB
OF SH OF SNOW VIS POOR
REST OF THE AREA: SECTOR W 7/6 WITH GUSTS PROB OF SH OF SNOW VIS POOR
DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR W 7 WITH GUSTS PROB OF SH OF SNOW VIS
POOR
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