When a hurricane's steering winds collapse, the storm can sit in place for days, turning a wind event into a flood catastrophe. Here's why it happens.

Cities don't just run hotter than the countryside — they stay hotter after dark, and the nighttime gap is often wider than the daytime one.

Category number measures wind. It says nothing about how long a hurricane plans to sit still, and stalling is often what turns a storm catastrophic.

A record-breaking heat dome that has killed dozens in Western Europe is sliding east, with Germany and Poland bracing for the weekend peak.

A heat-stressed transformer failure in Brittany cut power to tens of thousands of homes as France logged its hottest day on record and Europe's heatwave spread north.