Confusing Weather

Hi,I had wierd weather this morning,while flying out of EDLP at 5000ft,i was above the cloud layer with clear skys above rain pelting the windscreen and in the spot veiw the rain was comming sidewaysthis might have been from the storm over Europe though.Then at the WRB vor about 20 miles south of EDLP i started to climb to FL290 after about 200 ft i was in thick clouds again never happend before,there was no gradual cloud just clear blue sky then bang thick soup.Toni P.