Forecast for Melbourne, issued 23rd December, 4pm.
Tonight : Cloudy with showers and isolated thunderstorms developing. Remaining hot, ahead of a cooler change overnight.
Monday : Cooler with a shower or two clearing later. Light to moderate SE winds. Rainfall 1- 5 mm
Min 20 Max 26
Tuesday : Fine and partly cloudy after an early shower, mild to warm with light SE winds.
Min 16 Max 22
Wednesday : Fine warm and sunny, light NE winds.
Min 16 Max 26
Thursday : Showers and thunderstorms developing, humid with light NE winds, and afternoon seabreezes.
Min 18 Max 29
Friday : Humid with rain at times easing later, light winds tending cooler S/SE later.
Min 17 Max 25
Saturday : Mostly fine, partly cloudy with a brief shower or two. Light to moderate SE winds.
Min 16 Max 22
Sunday : Fine and partly cloudy, light winds.
Min 14 Max 24
Notes on the Weather : A very active low pressure trough dominates the country, tropical moisture is being advected South into the trough from NW WA, and a high pressure ridge is over SW WA. A cold front is laying across Victoria, with a low pressure trough through NSW.
A cold front has moved through and is now in the Tasman Sea, and a cooler SW wind flow has developed across the state. Friday will also be cool though warm through the North.
By Saturday we will see a clearance to fine and warm weather, with warm to hot conditions developing over Victoria on Sunday. As the day goes on cloud will begin to increase from the west, and on Monday a weak change with patchy rain will develop across the state. This will contract Eastwards on Xmas day with cooler conditions becoming established and isolated showers quickly clearing in the south.
On Boxing Day the weather will be cool and fine, although there may be some lingering shower activity in the East with a potential blocking pattern possible. This blocking pattern will see troughiness start to develop over NE Victoria late into the week, and spread to remaining districts next Thursday and Friday