IDY10250
SECURITE
High Seas Forecast for Southern METAREA 10
SOUTHERN AREA: 50S80E TO 50S160E TO ICE EDGE
Issued by the Australian Government Bureau of Meteorology
For 24 hours commencing 1100 UTC 20 May 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Warning 2.
Melbourne Gale Warning 4.
Melbourne Gale Warning 11.
Part 2 Situation at 200600 UTC
Trough near 50S156E 55S154E 57S149E. Forecast trough near 46S169E 56S173E
59S174E at 210000UTC, well east of area.
Warm front near 50S134E 54S127E to low [1] 971hPa near 54S119E. Forecast near
55S164E 59S156E 61S148E to low 975hPa near 58S142E at 211200UTC.
Forecast cold front near 50S080E 53S080E to low [2] 990hPa near 54S074E at
201200UTC, entering from west, then near 50S091E 59S099E 63S088E to low [2]
958hPa near 57S080E at 211200UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 59S159E 63S138E:
Winds not exceeding 25 knots. Moderate to rough seas. Moderate to heavy swell.
Everywhere else, outside of warning areas:
Southwesterly quarter winds, shifting northerly quarter within 480nm east of
cold front, northeasterly quarter within 180nm south of warm front. Winds
turning clockwise within 600nm of low [1] and 360nm of low [2]. Wind speeds
20/33 knots. Rough to very rough seas. Moderate to heavy swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 120nm of
trough and fronts and within 300nm of lows. Visibility reducing below 2nm in
precipitation.
Part 4 Ice edge
Approximately 62S080E 62S100E 63S120E 64S130E 64S140E 63S160E.
Please be aware
Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger
than the forecast, and stronger still in squalls and thunderstorms. Maximum
waves can be twice the forecast height.
WEATHER MELBOURNE
The next routine forecast will be issued at 21:00 UTC Wednesday.
