Health expert Marcus Longley warned that changes to the NHS in Wales, with fewer major A&E departments, could make the pressure on ambulances transferring patients worse, as response distances and times are increased.
Professor Longley said, though, that current problems lie within the system more broadly, and "the health service needs to get ahead of the problem, rather than just forever scrambling to catch up with it."
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Breezy overnight. It will become fairly cloudy as the night progresses.
It should turn cloudier through the early hours with some patchy drizzle and some hill fog too.
It will be a breezy day with variable amounts of cloud and some bright or sunny spells.