Rubuta ci gaba don wannan sakin layi - Ayyukan haɗuwa sun ƙaru a cikin raƙuman ruwa wanda ya faɗaɗa a kan Caroline Islands a ranar 28 ga Satumba. Binciken bayanan ya nuna kasancewar raunin zagaye na kudu maso yammacin Guam a wannan lokacin, wanda ya zama Guguwar Guguwar Roger. A ranar 3 ga Oktoba, an shirya tsarin a cikin Tropical Depression 21W, wanda daga baya aka inganta shi zuwa guguwa mai zafi kuma aka kira shi "Roger" a ranar 4 ga Oktoba. An janyo karfi daga kwaminisanci a cikin zagayen Roger, yana hana ci gaba zuwa rikici zuwa gabas wanda zai zama Typhoon Tip
Ka yi haƙuri. Matsakaicin matsakaicin matsakaicin kudu maso gabas ya sa Roger ya koma arewa maso yamma. Daga nan sai Roger ya aiwatar da madauki na cyclonic a ranar 5 ga Oktoba. Guguwar ta ci gaba da motsawa zuwa arewa maso yamma har zuwa arewacin gefen dutsen, bayan haka ya juya zuwa arewa- arewa maso gabas. Daga nan sai Roger ya zama guguwa mai zafi a ranar 7 ga Oktoba, yayin da ya haɗu da wani sanyi a kudancin Japan.