Forecast issued at 5:16 am EDT on Tuesday 23 December 2014.
A high pressure system near New Zealand is moving slowly east maintaining a ridge to the northwest and directing warm and humid tropical air into a broad low pressure trough over western New South Wales. During Tuesday the trough will deepen and move to the east as a cold front moves through the south of the state. Another cold front will move through southeastern Australia during Friday and the trough is expected to move to the northeast of the state.
Forecast for the rest of Tuesday
Cloudy. High (80%) chance of showers during the morning and afternoon. Thunderstorms likely during the afternoon. Winds north to northeasterly 15 to 25 km/h increasing to 20 to 30 km/h in the late afternoon then tending north to northwesterly 15 to 20 km/h in the evening. Daytime maximum temperatures in the mid to high 20s.
- Fire Danger
- Illawarra/Shoalhaven: Low-Moderate
- Southern Ranges: Low-Moderate
UV Alert from 8:40 am to 5:10 pm, UV Index predicted to reach 12 [Extreme]
Wednesday 24 December
Cloudy. High (70%) chance of showers, most likely in the morning. The chance of a thunderstorm inland in the afternoon and early evening. Winds north to northwesterly 15 to 20 km/h shifting south to southeasterly 15 to 25 km/h in the morning. Overnight temperatures falling to between 15 and 19 with daytime temperatures reaching the low to mid 20s.
Thursday 25 December
Cloudy. Medium (60%) chance of showers in the morning and afternoon. A thunderstorm likely in the afternoon and evening. Light winds becoming north to northeasterly 15 to 25 km/h during the day. Overnight temperatures falling to between 15 and 18 with daytime temperatures reaching around 30.
Friday 26 December
Partly cloudy. Medium (50%) chance of showers in the afternoon and evening. The chance of a thunderstorm in the afternoon. Winds north to northwesterly 15 to 20 km/h ahead of fresh south to southeasterly winds 20 to 30 km/h during the late morning or early afternoon. Overnight temperatures falling to between 15 and 18 with daytime temperatures reaching the mid to high 20s.
The next routine forecast will be issued at 4:30 pm EDT Tuesday.