38 patients in five hospitals in north Wales are experiencing symptoms related to the winter vomiting bug, norovirus.
Betsi Cadwaladr health board said that 11 wards are currently affected in Ysbyty Glan Clwyd, Colwyn Bay hospital, Ysbyty Gwynedd, Dolgellau hospital and Wrexham Maelor.
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Many places will start dry, but rain in the southeast will spread to most for a time overnight.
The family of Isaac Nash who went missing after being swept out to sea last summer have presented a cheque for £10,000 to the RNLI.
There is likely to be a good deal of cloud around today, thickest in the southeast, where outbreaks of rain are possible at times.