The cause of a peat bog fire in Borth, near Aberystwyth, is still unclear.
Fire crews were called to the blaze in the area at 5.20am.
According to Dr Christian Dunn from Bangor University peat burns well because it's made of rotting plants.
He added that it is unusual to see such a fire at this time of year.
Our reporter Kevin Ashford sent this report:
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It will quickly turn chilly for many this evening, but it will stay milder in the west.
Gerald Corrigan is in a critical condition after being hit while fixing a satellite dish in Holyhead, in the early hours of Friday morning.
The sunshine will become hazy at times, but will remain strong.