Definition: Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
Input: Tropical storms in Arizona are infrequent, since the predominant storm track carries most storms that form in the Eastern Pacific either parallel or away from the Pacific coast of northwestern Mexico.

The strongest storm track carries most storms that form in the Eastern Pacific. It is either carried parallel or away from the Pacific coast of northwestern Mexico. This causes less tropical storms in Arizona.