Sticky, unseasonable warmth stretching across the eastern United States this week will set the stage for a sprawling storm system that threatens to bring thunderstorms and heavy rain — weather more typical of spring than the dead of winter — from Thursday through Saturday.

Multiple tornado warnings were issued by the National Weather Service on Thursday after tornadoes were identified near Pink and Purcell, Oklahoma.

PURCELL, Okla. (AP) — Severe storms moved through Oklahoma around sunrise Thursday, spinning off two tornadoes and high winds that damaged buildings, downed trees and caused power outages, officials said.

A radar-confirmed tornado ripped across Interstate 35 and part of Purcell, Oklahoma Thursday morning, knocking down power lines as a powerful line of thunderstorms barreled their way across the Southern Plains.

A tornado that moved through Purcell during Thursday's severe weather outbreak has been confirmed as an EF-2, according to the National Weather Service.

A round of storms brings a severe weather risk that could produce hail and a tornado threat Thursday morning in Oklahoma.

RAIN MOVING TOWARD KANSAS CITY, AND THERE’S A LOT OF IT. AND THERE’S ENOUGH INSTABILITY FOR A FEW STRIKES OF LIGHTNING. THERE WAS A STRIKE THERE NEAR OTTAWA. THERE’S A LITTLE STRIKE THERE TO THE WEST OF HARRISONVILLE.

A big warm front will bring 60s and more humidity to Indiana today. Scattered light rain is possible Thursday afternoon and evening. Storms arrive later tonight.