Source: CNN
Brain - An Arctic blast could bring record low temperatures to the Eastern US
Key Highlights

The cold wave could mean temperatures 20-30 degrees below average

Starting Tuesday morning, record low temperatures are possible across Texas and Oklahoma, along with parts of the Ohio Valley

The cold temperatures have had unusual side effects in some places

Residents were saying they smelled an unusual odor

The odor of manure from a large stock farm was trapped in a part of the atmosphere that moved southward with the cold front, meteorologists said