Task: Text Simplification
Input (English): by september 1 a cyclonic circulation with a diameter of 690 mile -lrb- 1115 km -rrb- was evident on satellite imagery , well to the southeast of the cape verde islands , and several hurricane forecast models anticipated development and strengthening.
Output (English): a cyclonic circulation with a diameter of 690 mile was evident on satellite imagery to the southeast of the cape verde islands , while several hurricane forecast models anticipated development and strengthening.