NBC News Weather
Updated: 2 hours 34 min ago
Storm chasers captured a powerful tornado as it moved through Wynnewood, Oklahoma.
Tornadoes with wind speeds above 100 mph were expected from eastern Oklahoma to central Arkansas into the evening.
The same storm system brought a spate of severe weather to the Plains states over the weekend.
The inferno in Alberta ignited on May 1.
One of the severe storms that swept across south and central Oklahoma, Sunday, produced a tornado near the town of Central High
The slow-moving system has already been blamed for killing two good Samaritans in Arizona as they tried to assist victims of a rollover crash.
Officials worried the blaze could exceed 1,000 square miles by Sunday, but said it was being held at 621 square miles.
Five people suffered minor injuries after a tornado touched down in Wray, Colo. Severe storms could form Texas and the Plains over the next few days.
More than 25,000 of the 88,000 people who were forced from their houses as the blaze grew uncontrollably throughout the week have to be relocated.
A gigantic multi-fire blaze burning in the Canadian city of Fort McMurray that has forced tens of thousands of people out of their homes was expected to continue its rapid growth, officials said Friday.
The Arizona Department of Public Safety closed Interstate 10 in both directions from Highway 191 to the New Mexico border due to blowing dust.
A gigantic multi-fire blaze burning in the Canadian city of Fort McMurray was expected to continue its rapid growth, officials said Friday.