Severe storms usher in dramatic drop in temperatures across the Northeast as Plains see threat of tornadoes

Nearly 100 million people across the Northeast and Plains are at risk for severe weather Wednesday as two separate storm systems threaten those regions with tornadoes, large hail and damaging winds.

More severe weather remains in the forecast through the rest of this week. "The upcoming days will see widespread severe storms racing from the western high Plains to the East Coast, pushed along by a strong cold front. It's safe to say that more than a dozen states will encounter this severe weather event," said Chad Myers, a CNN meteorologist.