Add Yahoo as a preferred source to see more of our stories on Google. The relentless stretch of extreme summer weather that has fueled destructive California wildfires, spawned tornadoes in the ...

We often think about weather controlling wildfires: dry air, heat, wind and lightning help determine when fires start and how quickly they spread. However, once a wildfire becomes intense enough, the ...

1:31 Wild weather including tornadoes, heat and flooding continue to hit Prairies Heat waves are becoming more frequent and intense in Canada, which increases the risk of these dangerous storms. One ...

The relentless stretch of extreme summer weather that has fueled destructive California wildfires, spawned tornadoes in the Midwest and pushed heat alerts across much of the country isn't letting up.

A fire whirl, or fire tornado, rises from flames near Wofford Heights, Calif., in August 2021. David McNew/Getty Images We often think about weather controlling wildfires: dry air, heat, wind and ...