Firefighters from Aberystwyth are working to deal with a bog fire which started in Borth early this morning.
Fire and smoke is continuing to affect a large part of the area. The cause of the blaze has yet to be confirmed.
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Weed pollen will be low, however, spores will rise to elevated levels at times.
It will be dry this evening with some late spells of sunshine. Overnight it will become increasingly cloudy.