Why Polar Vortexes Are Becoming More Common Understanding the Polar Vortex The polar vortex is like a massive whirlpool of ...

A low pressure trough continues to move up the coast with a high pressure ridge pushing in behind the change, reaching the northeast during today. A low pressure trough over the inland will linger in ...

Where no observation is available within the last 75 minutes, the latest observation is shown in italics and coloured and removed from the table after 30 hours. Station names link to data for the ...