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: The inner eyewall dissipated as a 23 mile (37 km) outer eyewall became dominant, and concurrently the overall organization of the hurricane improved.

The hurricane improved when the inner eyewall dissipated and the  23 mile (37km) outer eyewall became dominant.