Classify the given news article into its topic.
Most of America is in the grips of a deep freeze as temperatures drop below freezing across much of the nation.
The topic of this news article is Weather.
Complete the following task based on the instruction and optional input provided.### Instruction:
Classify the given news article into its topic.

### Input:
Most of America is in the grips of a deep freeze as temperatures drop below freezing across much of the nation.

### Output:
The topic of this news article is Weather.