A tornado that swept through a rural town in North Dakota left at least 3 people dead

ENDERLIN, N.D. (AP) — Powerful winds — including a tornado — that swept across parts of the upper Midwest left three people dead and a regional airport heavily damaged, while nearly 150 million Americans were under a heat advisory or warning as the weekend warmed up in much of the U.S.

A complex storm system wreaked havoc in parts of North Dakota, northern Minnesota and northern Wisconsin, with reported tornadic activity, large hail and strong wind gusts, according to Brian Hurley, meteorologist with the National Weather Service's Weather Prediction Center.

Cass County Sheriff Jesse Jahner said at a news conference Saturday that two men and a woman were killed late Friday at two locations around the town of Enderlin, about 40 miles (60 kilometers) southwest of Fargo. Thousands of households lost power.

Hours earlier the National Weather Service in Grand Forks said on the social platform X that two deaths were attributed to a tornado that hit a home.

Tornado confirmed by National Weather Service

Timothy Lynch, lead forecaster with the NWS office in Grand Forks, said the storm was confirmed as a tornado but crews were still working to determine its strength and highest wind speeds. He said the storm impacted the neighboring counties of Cass and Ransom.

“We still have people out investigating and gathering information on what happened. It was a pretty major event,” Lynch told The Associated Press.

Gov. Kelly Armstrong said in a statement that the NWS confirmed a second tornado touched down near Spiritwood, which is about 80 miles (130 kilometers) west of Fargo. Armstrong issued a statewide disaster declaration to respond to the damage.

Heavy winds also swept across localized areas of Minnesota, and the NWS reported wind gusts of up to 106 mph (171 kph) at Bemidji Regional Airport overnight.

“I cannot ever recall hearing a rushing wind like that!” Bemidji Mayor Jorge Prince posted on Facebook in the early hours Saturday. “Emerged from our basement to find our neighborhood with lots of trees down and several homes with severe damage.”

Prince also said officials were responding to many knocked down power lines and several gas line leaks. Localized torrential rain flooded the city's downtown and stalled vehicles, Beltrami County Emergency Management Director Christopher Muller said.

Many Bemidji-area businesses posted on social media to say they were without power and closed for the day. Muller warned people to prepare for “long-term power outages” because of damage to infrastructure.

Hurley said that same storm moved on in a weakened state to parts of Michigan. It was expected to cross over lower Ontario, Canada, and back into the United States to hit upstate New York on Saturday night into Sunday.

“Still wind and hail threat,” Hurley said of the enhanced risk to upstate New York. “It doesn’t look like it’s going to be as robust perhaps as we saw last night.”

Millions face extreme heat

Almost 59 million Americans were under an extreme heat warning Saturday, Hurley said, as the high temperatures combined with humidity pushed an above-average heat index for the Northern Plains and the Midwest.

Parts of Nebraska, the Dakotas, Minnesota and Iowa could face temperatures “easily 20 degrees above normal,” according to Hurley, with some areas reaching the triple digits. That kind of heat may be expected in July, he said, but it's rare to see in June.

“A lot of these areas have been pretty cool with rain over the last month or so, so it’s going to be a little bit of a shock,” Hurley said.

Cooling centers were open in cities including Omaha and Minneapolis.

An additional 84 million people were under a heat advisory with the extreme weather expected to migrate east toward the Great Lakes, the Mid-Atlantic and the Northeast, where the “heat risk category is a 4 of 4” into early next week, Hurley said.

Meanwhile parts of the Great Basin and the Southwest were expected to see below-normal temperatures.

Alaska fires prompt evacuations

Warm and dry conditions coupled with frequent thunderstorms and lightning have resulted in more than 100 fires in the state since Wednesday.

“A lot of those fires are in vast wilderness areas of Alaska where fire is allowed to take its natural course,” said Sam Harrel, an information officer with the state's Division of Forestry and Fire Protection.

But some fires were threatening populated areas, prompting evacuations in the Interior region. Among them was a go order issued Friday for Fairbanks North Star Borough, according to Harrel. The borough is roughly the size of Connecticut.

“There’s a lot of fires happening,” Harrel said, “but this is our fire season.”