The Hawaiian Island East Wind blows strongly.
Here's why:
* "Hawaiian": Proper nouns, which are specific names of people, places, or things, are capitalized. "Hawaiian" refers to the specific island chain.
* "Island": While "island" is a common noun, "Island" in this case functions as part of the specific name "East Wind" and therefore is capitalized.
* "East Wind": This is a specific name and is capitalized.
Let me know if you have any more capitalization questions!