Forecast issued at 4:41 pm EST on Tuesday 16 September 2014.
A relatively weak low pressure system over eastern Victoria extends a trough northwards over coastal NSW. The trough and associated isolated thunderstorm activity will clear the coast late this afternoon and evening and the low will move to eastern Bass Strait and deepening somewhat. The low is expected to move slowly to the southeast over the southern Tasman Sea and intensify during Wednesday while a cold front moves northeast from the Southern Ocean clipping far southeast NSW later in the day. A high pressure system southwest of Adelaide is expected to extend a ridge over western NSW during Wednesday. Little change in the pattern is expected Thursday and Friday with the low over the southern Tasman and the ridge over western NSW. The high and ridge is likely to move over NSW on the weekend.
Forecast for the rest of Tuesday
Partly cloudy. Isolated showers this evening. Winds westerly 25 to 40 km/h decreasing to 15 to 25 km/h in the evening.
Wednesday 17 September
Partly cloudy. The chance of showers, mostly in the morning. Winds westerly 25 to 40 km/h. Overnight temperatures falling to between 2 and 5 with daytime temperatures reaching between 9 and 15.
UV Alert from 9:30 am to 2:20 pm, UV Index predicted to reach 5 [Moderate]
Thursday 18 September
Mostly sunny morning. Patches of frost early in the morning. Isolated snow showers about the ranges above 1700 metres during the late afternoon and evening. Winds westerly 20 to 30 km/h turning southwesterly 15 to 20 km/h in the morning. Overnight temperatures falling to between minus 2 and 1 above zero with daytime temperatures reaching between 8 and 14.
Friday 19 September
Patchy fog and frost in the morning. Sunny day. Winds south to southwesterly 15 to 20 km/h becoming light during the morning then becoming west to southwesterly 15 to 25 km/h during the afternoon. Overnight temperatures falling to between minus 2 and 1 above zero with daytime temperatures reaching between 10 and 16.
Saturday 20 September
Becoming cloudy. Winds southerly 15 to 25 km/h becoming light during the day. Overnight temperatures falling to around minus 1 with daytime temperatures reaching between 12 and 17.
The next routine forecast will be issued at 5:15 am EST Wednesday.