A ranar 26 ga watan Satumba, raƙuman ruwa ya shiga gabashin Tekun Pacific kusa da Panama, kuma a hankali ya shirya. Rashin ƙarfi mai ƙarancin ƙarfi ya faɗaɗa daga Tekun Caribbean zuwa kudancin Mexico, yana rushe al'ada na raƙuman ruwa na yamma. A ranar 3 ga Oktoba, raƙuman ruwa na wurare masu zafi ya haɓaka wani yanki na zurfin haɗuwa, kuma ya fara motsawa zuwa gabas zuwa kudu maso kudancin Mexico. Bayan kwana biyu ya zama karamin zagaye, kuma a tsakar rana a ranar 5 ga Oktoba tsarin ya haɓaka zuwa Tropical Depression Eighteen-E yayin da yake kusa da 250 mil (410 km) kudu maso kudu maso yammacin Huatulco a jihar Oaxaca. Ba tare da isasshen iskar iska ba, sai ta shiga gabashin Tekun Pacific kusa da Panama, kuma a hankali ta shirya. A farkon Oktoba, raƙuman ruwa mai ƙarfi ya juya zuwa arewa maso gabas da kudu maso gabas, wanda aka sanya wa suna Paulina Cruz, kuma a farkon Oktoba ya zama babban raƙuman ruwa mai ƙarfi wanda aka sanya shi zuwa arewa maso kudu maso gabas, wanda aka kira shi da raƙuman
Yamma