Forecast issued at 5:30 am CST on Thursday 3 September 2015.
A low pressure system over New South Wales will move over the Tasman Sea during the day. A high pressure system south of WA will move east to be south of the Bight later this evening. A front is expected to cross southern parts of the State on Sunday.
Forecast for the rest of Thursday
A slight to medium chance of a shower about the agricultural area, West Coast and south of the Pastoral districts, increasing to a high chance about the Mount Lofty and southern Flinders Ranges. Showers easing during the day and contracting to southern coasts by evening. Cool to mild with fresh southwest to southerly winds, easing during the day.
Friday 4 September
Early morning frost or fog patches over agricultural areas and the West Coast district. Slight chance of showers about southern coasts. Cool to mild with light to moderate south to southeasterly winds, tending east to northeasterly in the west.
Saturday 5 September
Early morning frost or fog patches in the east. A slight chance of a shower developing in the far west of the West Coast district. Cool to mild grading to warm in the west with light to moderate north to northeasterly winds, freshening in the west ahead of a southerly change in the late afternoon and evening.
Sunday 6 September
A medium to high chance of a shower over the southern agricultural area grading to a slight chance of a shower over remaining agricultural areas and the south of the Pastoral and Flinders districts. Cool to mild with light to moderate southwest to southeasterly winds. Cumulative rainfall totals until midnight Sunday are expected to be 2 to 10 mm over the southern agricultural area and less than 2 mm over the remainder of the agricultural area, West Coast district and the south of the pastorals. Falls of 10 to 15 mm are possible over the Lower South East, mostly on Sunday.
Monday until Wednesday
Fine apart from a slight chance of a shower about the southern agricultural area, most likely about the coastal parts. Remaining cool to mild with light to moderate southerly winds turning northeasterly in the west later in the period.
The next routine forecast will be issued at 4:30 pm CST Thursday.