The eyewall collapsed somewhat , and PERSON@1 weakened slightly to a Category NUMBER@1 hurricane , where it leveled off for about NUMBER@2 hours until September NUMBER@3 due to a lengthy eyewall replacement cycle and an elongated cloud pattern .

The eyewall collapsed somewhat , and PERSON@1 weakened into a Category NUMBER@1 hurricane , where it levelled off for about NUMBER@2 hours until September NUMBER@3 because of a lengthy eyewall replacement cycle and a stretched out cloud pattern .
