IDY10220
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High Seas Forecast for Western METAREA 10
12S TO 30S BETWEEN 90E AND 125E, AND 30S TO 50S BETWEEN 80E AND 129E
Issued by the Australian Government Bureau of Meteorology
For 24 hours commencing 2300 UTC 13 December 2024
Part 1 Warnings
Melbourne Gale Warning 3.
Part 2 Situation at 1800 UTC
Trough [1] 12S113E to low [1] 1001hPa near 19S104E. Forecast 16S109E to low [1]
1006hPa near 17S103E at 150000UTC.
Cold front 32S099E 45S108E to low [2] 963hPa near 48S096E. Forecast 34S113E
47S126E 50S124E to low [2] 971hPa near 50S108E at 150000UTC.
Trough [2] forecast to enter the area from the west near 42S082E 45S080E at
141200UTC, then near 40S090E 45S086E 49S080E at 150000UTC.
Part 3 Forecast
Refer to latest warnings.
South of line 45S129E 35S115E 32S101E 38S080E, outside warning areas:
Northerly quarter winds, shifting westerly quarter within 1500nm west of cold
front and turning clockwise within 480nm of low [2]. Wind speeds 20/33 knots.
Moderate to rough seas. Low to moderate swell, increasing to moderate to heavy
swell west of line 32S108E 50S117E.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell,
increasing to moderate to high swell south of line 27S090E 31S106E.
Rain areas, scattered showers and isolated thunderstorms mostly within 120nm of
cold front/troughs,and within 600nm of lows. Visibility reducing below 2nm in
precipitation
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 08:00 UTC Saturday.
