A campaign has been launched today to highlight the dangers of using the banned substance mephedrone.
It is estimated that more than 134,000 youngsters aged 16 to 24 have tried the formerly legal high, commonly known as 'meow meow'.
Cardiff bar manager Sian Hills told ITV Wales people that people often underestimate the power of the drug.
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The Met Office says some delays to road, rail, air and ferry transport are likely, with bus and train services affected.
The Trussell Trust, which run a network of food banks across Wales, handed out over 100,000 emergency food supplies in the last year.
"Studying bats as a ‘model’ can provide us with a greater understanding of the mechanisms used by mammals to navigate.”