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: By September 1 a cyclonic circulation with a diameter of 690 mile (1115 km) was evident on satellite imagery, well to the southeast of the Cape Verde Islands, and several hurricane forecast models anticipated development and strengthening.

A cyclone with a diameter of 690 miles could be seen via satellite. It was near the Cape Verde Islands. It was expected to become stronger.