Is the sentence rain and heavy winds caused damage along coast a compound sentence?

No, the sentence "Rain and heavy winds caused damage along the coast" is not a compound sentence.

Here's why:

* Compound sentences have two or more independent clauses joined by a coordinating conjunction (for, and, nor, but, or, yet, so).

* Independent clauses can stand alone as complete sentences.

In this case, there is only one clause: "Rain and heavy winds caused damage along the coast." This clause contains a subject ("rain and heavy winds") and a verb ("caused"). It expresses a complete thought and can stand alone.

Therefore, this sentence is a simple sentence.