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.

By September 1 a cyclone with a diameter of 690 miles was on satellite southeast of Cape Verde Islands and several forecasts anticipated it strengthening.