Forecast issued at 4:30 pm CST on Wednesday 30 July 2014.
A ridge of high pressure extends across the north of the State. A vigorous cold front to the south of the Bight will move across the State on Thursday. A high will develop over the Bight later Friday and then move east to be near the Victorian border Saturday evening.
Forecast for the rest of Wednesday
Isolated showers about the southern coasts and ranges. Cool with moderate northwesterly winds, fresh in the south and strong about southern coasts.
Thursday 31 July
Isolated showers developing south of Tarcoola to Yunta, increasing to scattered about the southern agricultural area and increasing to widespread showers about coasts and ranges south of Adelaide with the front. Possible small hail and isolated squally thunderstorms developing south of about Adelaide during the evening. Cool to cold in the south grading to mild in the north. Fresh to strong and gusty west to northwesterly winds, shifting west to southwesterly during the day and possibly reaching gale force about southern coasts and ranges.
Friday 1 August
Isolated showers south of Tarcoola to Yunta, scattered during the morning about the southern agricultural area east of Port Lincoln and also about the southern Flinders Ranges. Showers becoming isolated and contracting to southern coasts and ranges during the afternoon and evening. Possible small hail and isolated squally thunderstorms south of about Adelaide until early afternoon. Possible snow about the higher peaks of the Mount Lofty and Flinders Ranges during the early morning. Cool to cold with moderate to fresh southwesterly winds, strong about the coasts and possibly reaching gale force about southern coasts, easing to light to moderate southerly by evening.
Saturday 2 August
Possible isolated showers about the southern agricultural area. Fine elsewhere. A cold to very cold morning with areas of frost. Cool to mild during the day with light winds becoming moderate northeasterly winds.
Sunday 3 August
Possible isolated showers about the Lower South East coast. Fine elsewhere. A cold morning with areas of frost. Cool to mild during the day with light to moderate northeast to northwesterly winds. Cumulative rainfall totals from Wednesday to midnight Sunday are expected to be less than 5 mm over the northern agricultural area and south of the pastorals, increasing to 5 to 15 mm over the southern agricultural area, 15 to 30 mm about the South East districts and Mount Lofty Ranges, reaching 30 to 50 mm about the higher peaks of Mount Lofty Ranges and Lower South East coast.
Monday until Wednesday
Slight chance of a light shower about southern coats of Kangaroo Island and the Lower South East.
The next routine forecast will be issued at 5:30 am CST Thursday.