Paul Hinge, chairman of a Mid Wales health watchdog, Ceredigion Community Health Council, says the ambulance service is "stretched" and restructuring processes mean hospitals have fewer beds available.
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Any rain will eventually clear this afternoon, bringing brighter weather behind it.
Public Health Wales are warning visitors to be aware of the infectious diseases associated with livestock this bank holiday weekend
A band of rain pushing in overnight, bringing with it the odd spot of coastal and hill fog, but things should improve by tomorrow.