Arctic air to slam Indiana. How cold will it get?

AI-assisted summary

Indiana is bracing for a surge of Arctic air, bringing some of the coldest temperatures in the U.S.

A weakened polar vortex is allowing frigid air to spill into the country, creating a winter-like weather pattern.

Morning low temperatures are expected to drop into the single digits and below zero, with dangerous wind chills.

Light snow is possible throughout the week, which could create slick road conditions for travelers.

Temperatures across Indiana are forecast to plunge into some of the coldest in the U.S., dipping well below zero as a surge of Arctic air sweeps in.

The broader weather pattern will stay active and winter-like through the end of the week and into the weekend . A recent stratospheric disturbance weakened the polar vortex, allowing frigid Arct