Weather traffic jam traced back to an Omega and Rex Block

An atmospheric pattern across the country bringing a weather traffic jam, all having to do with the upper level pattern, the jet stream pattern, typically a zonal pattern where systems flow from east to West. They move faster and temperatures tend to be near normal. But when we get into an amplified jet stream pattern and blocking patterns in place, systems are slower to move and temperatures can be a little bit above or below seasonal. And that’s exactly what we’ve got across the country this week. First up, we’ve got that Rex block across the Atlantic, high pressure over low pressure. That’s really slowing things down with a low across Atlantic Canada. At the same time, watch across. Hudson Bay into Quebec where we’ve got an Omega block setting up that’s also slowing the progress of low pressure system across the provinces. And so we’ve been seeing days of snow and multiple rounds of showers and thunderstorms across parts of the country. We’ll continue to see that low slowly make its way across the Prairie provinces and the southern branch of it bringing showers and thunderstorms several rounds into Ontario. Meanwhile, thanks to that Rex block across the Atlantic and that weather traffic jam. Will continue to see that retrograding low bring more rain and snow into Newfoundland.