The emergency services will be tested today during an exercise at Wylfa nuclear power station on Anglesey.
The test will check the response of all the emergency services in the event of an incident involving the transport of radioactive material.
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The two projects going head-to-head today are Bala Castle Street Playground and Heronsbridge Re-Cycles.
Cloudy and damp evening and night with low cloud giving hill fog and patchy drizzle
A mostly cloudy and murky day with widespread hill fog and outbreaks of rain.