A system bringing the chance of rain and thunderstorms across Southern California has cooled down the region. Snow is expected in parts of the Sierras.

Unseasonably cool temperatures along with a chance of rain enter the forecast this week for Southern California.

The final week of summer is expected to be a wet one, with a chance of showers in the forecast for Thursday and Friday. A low-pressure system will move through the area later this week with the best chance of rain arriving on Friday,

By Barbara Erling WROCLAW, Poland (Reuters) -Flood defences in Poland's third-largest city Wroclaw looked to have held firm on Thursday, after the worst floods in at least two decades ravaged central Europe this week.

Poland's third-largest city Wroclaw was bracing for peaking flood waters on Thursday, with early indications its defences were holding firm, after the worst floods in at least two decades ravaged central Europe this week.