ASK THE METEOROLOGIST
“Does weather always move west to east?”
Weather tends to follow the Jet-stream which has a west to east movement across the world, however the Jet-stream can dip and rise which can cause systems to dig south or push north. High pressure tends to keep the weather pattern further north while low pressure digs systems south. Then there are the ever so crafty cut-off low’s which separate from the Jet-stream and thus follow their own pattern. These systems can dig south, remain stationary or even retro-grade to the west! Cut-off lows are especially tricky to forecast for because they don’t follow the Jet-stream and can in fact do what they want, more or less.