A huge snowstorm caused at least 1.4 billion euros ($1.70 billion) of damage as it swept through Madrid over the weekend, shutting businesses, damaging buildings and disrupting services, authorities said on Thursday. Storm Filomena brought the heaviest snowfall in decades across central Spain, wreaking havoc as temperatures hit record lows. Fallen trees still blocked some roads on Thursday and heaps of rubbish built up alongside snowdrifts, as the Spanish capital tried to get waste-collection services back up and running.