Before interstates and modern equipment, Idaho endured a season that rewrote how the state builds roads and responds to extreme weather.

A massive winter storm dumped sleet, freezing rain and snow across much of the U.S. on Sunday, bringing subzero temperatures and paralyzing air and road traffic. Tree branches and power lines snapped under the weight of ice,

Reporters from across the NPR Network are covering the storm in each state — the impact and how officials are responding.

It has been 77 years since one of the worst winter storms plagued Idaho. The 208 takes a look back at the season that brought the state to a standstill.

Planning to fly out of Boise this weekend? 🛫 Check your flight status before heading to the airport as Winter Storm Fern continues to wreak havoc at airports across the eastern half of the country.

So how does one winter storm manage to shut down airspace nationwide? It comes down to capacity, connectivity, and compounding constraints.