1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
2026-07-19, 00:00 UTC.
NATIONAL WEATHER SERVICE
SEA ICE AND ICEBERGS ISSUED BY SHN
PRESSURE HPA
BEAUFORT SCALE WINDS.
PART 1 GALE WARNING:
WARNING 333: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 8 WITH GUST BETWEEN
35S-40S 20W-40W
WARNING 331: STRONG BARIC GRADIENT PROVOKES WINDS FORCE 9 FROM SECTOR W WITH
GUST BETWEEN 40S-50S AND 20W-30W UNTIL 19/0900
PART 2 GENERAL SYNOPSIS AT 21:00UTC
181400 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 6147S 05210W 21X12NM
A81 6112S 05327W 28X25NM A76C 5219S 03139W 16X6NM D33C 6315S 05259W 9X4NM A83
6234S 05047W 12X7NM D35 6155S 04445W 28X6NM 3.ICEBERGS SMALLER THAN 10NM
ICEBERG1 6210S 05251W 6X3NM ICEBERG2 6310S 05233W 5X2NM ICEBERG3 6253S 05303W
4X3NM ICEBERG4 6229S 05252W 2X1NM ICEBERG5 5957S 03541W 4X2NM 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
LOW 987HPA 50S 25W MOV E DPN
LOW 999HPA 47S 47W MOV SE WKN EXP 50S 40W BY 19/2100
HIGH 1008HPA 55S 40W MOV NE WKN EXP 53S 20W BY 19/1500
LOW 1002HPA 39S 46W MOV SE WKN EXTENDS CFNT AT 38S 50W 36S 53W 35S 55W
HIGH 1008HPA 43S 64W MOV NE WKN
PART 3 FORECAST ISSUED 00:00 UTC VALID UNTIL 00:00 UTC 2026-07-20
COASTAL AREAS:
INNER RIO DE LA PLATA: SE 3/4 INCR SE 5/6 WITH GUSTS BY 19/1800 PROB OF DRIZZLE
NXT HVY STORMS STARTING EARLY MORNING VIS POOR OCNL VERY POOR
OUTER RIO DE LA PLATA: SE 4/5 INCR 6/7 WITH GUSTS BY 19/1500 PROB OF DRIZZLE NXT
HVY STORMS STARTING EARLY MORNING VIS POOR OCNL VERY POOR
URUGUAY SOUTH EAST COASTS: VRB 3/4 PROB OF FOG NXT STORMS STARTING EARLY MORNING
VIS POOR
MAR DEL PLATA COASTS(36º17S - 38º30S): SE 5/6 WITH GUSTS PROB OF SH NXT RAIN VIS
MODERATE TO POOR OCNL VERY POOR
RINCON BAHIA BLANCA COASTS(38º30S - 41ºS): SE 4 PROB OF ISOL RAIN VIS MODERATE
PENINSULA DE VALDES COASTS(41ºS - 45ºS): VRB 3/4 PROB OF SH VIS MODERATE
GOLFO DE SAN JORGE COASTS(45ºS - 48ºS): SECTOR W 4/5 WITH GUSTS PROB OF SH RAIN
AND SNOW MIXTURE VIS MODERATE OCNL POOR
SOUTH PATAGONIA COASTS(48ºS - 54ºS): VRB 4 BACK SECTOR W 5/6 WITH GUSTS BY
19/1200 PROB OF SNOW FALL VIS MODERATE TO POOR
FIN DEL MUNDO COASTS(54ºS - 55ºS): SECTOR W 5/6 WITH GUSTS PROB OF SNOW FALL VIS
POOR OCNL MODERATE
ISLAS MALVINAS COASTS: SECTOR S 3 VEER SECTOR W 4/5 PROB OF SH OF SNOW VIS
MODERATE
OCEANIC AREAS:
NORTH AREA (35S- 40S AND 20W- 55W) E OF 40W: NW 8 WITH GUSTS PROB OF RAIN VIS
VERY POOR
REST OF THE AREA: SECTOR N 7/6 WITH GUSTS PROB OF RAIN NXT HVY STORMS VIS VERY
POOR TO POOR
CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: SECTOR W 9/8 WITH GUSTS DECR
7 WITH GUSTS BY 19/0900 PROB OF HVY RAIN NXT ISOL RAIN VIS VERY POOR TO POOR
REST OF THE AREA: SECTOR W 7/6 WITH GUSTS BACK VRB 6/5 WITH GUSTS BY 19/0600
PROB OF HVY RAIN NXT ISOL RAIN VIS POOR OCNL VERY POOR
CENTRAL WEST AREA (40S- 50S AND 40W- 60W) E OF 50W: VRB 5/4 PROB OF ISOL RAIN
VIS MODERATE
REST OF THE AREA: SW 5 PROB OF ISOL RAIN VIS MODERATE
SOUTH EAST AREA (50S- 60S AND 20W- 40W) N OF 55S: SECTOR E 7/6 WITH GUSTS BACK
SECTOR N 5 WITH GUSTS BY 19/1200 PROB OF SH OF RAIN SH OF SNOW VIS POOR
REST OF THE AREA: SECTOR W 6 WITH GUSTS PROB OF SH OF SNOW VIS POOR
SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55S: VRB 4/5 PROB OF SH OF RAIN SH
OF SNOW VIS MODERATE OCNL POOR
REST OF THE AREA: NW 6/5 WITH GUSTS PROB OF SH OF SNOW VIS POOR OCNL MODERATE
DRAKE AREA (55S- 60S AND 60W- 67W): NW 6 WITH GUSTS PROB OF SNOW FALL VIS POOR
-----------------------------------------------------------------
1:31:06:01:00
SECURITE
WEATHER BULLETIN FOR SHIPPING - METAREA 6-
12:00 UTC 18, JULY 2026.
NATIONAL WEATHER SERVICE (NWS)
SEA ICE AND ICEBERGS ISSUED BY SHN PRESSURE HPA BEAUFORT SCALE WINDS
PART 1 GALE WARNING:
981/2026 STRONG BARIC GRADIENT SOUTHERN PORTION OF DRAKE STRAIT MAR DE LA FLOTA COASTS MOV E DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 61S-64S 64W-50W UNTIL 18/2100
982/2026 STRONG BARIC GRADIENT NORTHERN WEDDELL SEA MOV SE DEEPENING PROVOKES WINDS FORCE 8 WITH GUST IN 61S-65S 50W-30W UNTIL 19/0300
PART 2 GENERAL SYNOPSIS AT 09:00UTC
LOW 985HPA 65S 67W MOV E WKN
LOW 979HPA 67S 44W MOV E WKN
LOW 990HPA 62S 78W MOV E WKN
LOW 981HPA 68S 35W MOV E WKN
171400 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 6147S 05210W 21X12NM A81 6112S 05327W 28X25NM A76C 5219S 03139W 16X6NM D33C 6315S 05259W 9X4NM A83 6238S 05051W 12X7NM D35 6154S 04434W 28X6NM 3.ICEBERGS SMALLER THAN 10NM ICEBERG1 6210S 05251W 6X3NM ICEBERG2 6310S 05233W 5X2NM ICEBERG3 6253S 05303W 4X3NM ICEBERG4 6229S 05252W 2X1NM ICEBERG5 5957S 03541W 4X2NM 4.ICEBERGS AREA A6000S 02000W 4300S 02000W 5300S 03900W 6011S 03900W B6011S 03900W 5500S 03900W 5900S 05000W 6245S 05000W C6245S 05000W 5900S 05000W 6400S 06716W 6700S 06716W
PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-07-19
COASTAL AREAS:
SOUTHERN PORTION OF DRAKE STRAIT W OF 60W: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 6/5 WITH GUSTS BY 18/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
SOUTHERN PORTION OF DRAKE STRAIT REST OF THE AREA: NW 7/8 WITH GUSTS BACK SECTOR W 7 GUST WITH 8 INTENSITY BY 18/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS W OF 60W: NW 7 GUST WITH 8 INTENSITY BACK SECTOR W 6/5 WITH GUSTS BY 18/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS NIGTH VIS POOR TO MODERATE
MAR DE LA FLOTA COASTS REST OF THE AREA: NW 7/8 WITH GUSTS BACK SECTOR W 7 GUST WITH 8 INTENSITY BY 18/2100 PROB OF MIST PROB OFISOL SNOW FALL SPELLS OF GOOD WEATHER DURING THE NOON VIS POOR TO MODERATE
GERLACHE STRAIT : SE 4/3 BACK SECTOR S 3 BY 18/1800 PROB OF MIST PROB OFINTERMITTENT SNOW FALL IMPR STARTING NOON VIS POOR TO MODERATE
MARGARITA BAY : NW 3/4 VEER SECTOR N 4/3 BY 18/1500 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
EREBUS Y TERROR GULF : NW 6/5 BACK SECTOR S 4/6 BY 18/2100 PROB OF FOG AND MIST IN PATCHES WORSENING DURING THE EVENING VIS GOOD TO MODERATE OCNL VERY POOR
OCEANIC AREAS:
NORTHER BELLINGSHAUSEN SEA N OF 64S: NW 5/6 WITH GUSTS BACK SW 5/6 BY 18/1500 PROB OF MIST PROB OFINTERMITTENT SNOW FALL SPELLS OF GOOD WEATHER TOWARDS EVENING VIS POOR TO MODERATE
NORTHER BELLINGSHAUSEN SEA REST OF THE AREA: SW 4/5 BACK SECTOR S 4 BY 18/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR STARTING NOON VIS MODERATE TO GOOD
SOUTHERN BELLINGSHAUSEN SEA (66-73S 70-90W): SW 4/5 BACK SECTOR S 4/3 BY 18/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NOON VIS MODERATE TO GOOD
NORTHERN WEDDELL SEA N OF 65S: NW 7/8 WITH GUSTS BACK SECTOR W 8 WITH GUSTS BY 18/1800 PROB OF MIST PROB OFISOL SNOW FALL IMPR TOWARDS NIGTH VIS POOR TO MODERATE OCNL GOOD
NORTHERN WEDDELL SEA REST OF THE AREA: SECTOR W 3/4 VEER NE 4/3 WITH GUSTS BY 18/2100 PROB OF FOG AND MIST IN PATCHES IMPR STARTING NOON VIS VERY POOR TO MODERATE OCNL GOOD
SOUTHERN WEDDELL SEA (68-78S 20-60W): SECTOR E 4/3 VEER SECTOR S 4/3 BY 18/1800 PROB OF MIST VIS MODERATE TO GOOD=