A significant disruption to the polar vortex over far Northern Canada will keep the pattern’s influence locked in our neck of the woods like a houseguest overstaying their welcome.

The Old Farmers Almanac has predicted the last frost dates across the U.S. for 2025 -- and some in the Chicago area might be ...

When the polar vortex begins to wobble and allows arctic air to spill south into northern Illinois in January, we usually end ...

After the polar vortex made its most dreadful and intense appearance in New York City this past winter, spring is finally in ...

On March 9, the polar vortex wobbled and then snapped back the other way as mighty winds, suddenly shifting from the west to the east - something that typically happens once a year - usually in the ...

Overnight low temperatures in the upper 50s are normal for February, not April, but we may see them this weekend in South Florida.

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

A "major disruption" has recently rocked the Arctic polar vortex, causing it to weaken and reverse direction from ...

The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March.

Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor ...