Showers 80 per cent likely for the weekend in the Blue Mountains

It’s almost guaranteed to be a wet weekend in the Mountains, not the news the organisers from the Blue Mountains Music Festival were hoping to hear.

Twitter pic: @BlackheathWeather.

Twitter pic: @BlackheathWeather.

The forecast from the Bureau of Meteorology is for an 80 to 90 per cent chance of showers on Friday, Saturday and Sunday.

Festival organiser Bob Charter told the Gazette on Thursday near lunchtime that it was “clear at the moment [in Katoomba] fingers crossed it’ll be fine by Saturday”.

“All stages are undercover,” he said. “But bring umbrellas for the in-betweens.”

The Bureau forecast says a low pressure trough over northeastern inland parts of New South Wales is weakening while another trough off the north coast is deepening.

“Later today, a cold front will cross the southern parts of the state and the inland trough will move west and weaken further as a high pressure system moves over the southern Tasman Sea in the wake of the front, extending a ridge to the northwest. The coastal trough is expected to persist off the north coast over the next few days,” the forecast said.

The rest of today in the Mountains will be cloudy with a 70 per cent chance of showers, most likely during the afternoon and early evening. There is also the chance of a thunderstorm this afternoon and evening. Winds east to northeasterly 15 to 20 km/h becoming light early in the morning. The daytime maximum temperatures in the area are expected to range between 24 to 31.

Fashion choices at the coming festival: Gumboots or high tide heels?

Fashion choices at the coming festival: Gumboots or high tide heels?

Friday is tipped to be partly cloudy with a very high (90 per cent) chance of showers about the Blue Mountains. The chance of a thunderstorm in the afternoon and evening. Light winds becoming southeasterly 15 to 25 km/h in the morning then increasing to 25 to 35 km/h in the middle of the day. Overnight temperatures falling to between 14 and 18 with daytime temperatures reaching 20 to 28.

Saturday will also be cloudy with a “very high (90 per cent) chance of showers about the Blue Mountains”. Winds will be southeasterly 25 to 35 km/h turning easterly 20 to 30 km/h during the morning. Overnight temperatures falling to between 13 and 17 with daytime temperatures reaching 21 to 27.

Sunday is also tipped to be cloudy with a high (80 per cent) chance of showers about the Blue Mountains. Winds easterly 20 to 30 km/h. Overnight temperatures falling to between 13 and 17 with daytime temperatures reaching 23 to 29.

The next Bureau update will be at 4.30pm today at http://www.bom.gov.au.