Pacific NW heatwave; Seattle mid-70s; Arctic air to Eastern US.

Looks like Mother Nature’s playing a game of weather whiplash! After enduring a long and unsettled winter, the Pacific Northwest is now sweltering under a heat wave. With temperatures soaring into the mid-70s in Seattle, it’s quite the turnaround. But hold on to your hats, folks, because there’s a twist in the forecast. A ridge over British Columbia is poised to usher in colder air from the Canadian Arctic, making its chilly journey across the Great Lakes and into the Southeast by Tuesday. And the plot thickens as this pattern seems set to linger for a week or more, keeping temperatures below normal across the Eastern US. Buckle up, it’s going to be a wild ride!

Ridge over British Columbia will help send colder air from the Canadian Arctic across the Great Lakes then into the Southeast by Tuesday.

This pattern will generally stick around for week or longer w/below normal temps across Eastern US. pic.twitter.com/cLXmciaJt7

— Ryan Maue (@RyanMaue) March 17, 2024