<h2>EDIT: I have been corrected. The answer is "frequent winter storms."</h2><h3>
Apologies for the issue, everyone! </h3><h3>
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Answer:
D. Extraordinary precipitation OR
C. Frequent winter storms
Explanation:
The northeast is near the ocean. Precipitation is most likely to be extremely high.
Extreme humidity is down towards the south.
Ongoing tornadoes is in the middle of the U.S. or in the midwest (Tornado Alley).
Frequent winter storms happen in mostly the northern states and in the northeast, but the key word is precipitation.
I could be wrong. It could be C, and D could apply to the western coast, but that's how I reason through it.