Guguwar Hellen

Very Intense Tropical Cyclone Hellen na Maris 2014 na ɗaya daga cikin guguwa masu ƙarfi a cikin Mozambique Channel a rikodin, da kuma mafi tsananin lokacin guguwa na Kudu maso Yammacin Tekun Indiya na 2013-14. Hellen ya kafa a ranar 26 ga watan Maris a arewacin tashar, kuma guguwar ta kawo ruwan sama zuwa bakin tekun Mozambique yayin da yake cikin matakan farawa. Yayinda yake motsawa zuwa kudu maso gabas, ya haɓaka yanki mai tsari na convection a kan cibiyar zagayawa. Ruwa mai dumi ya ba Hellen damar karuwa da sauri yayin da yake wucewa kudu da Comoros, Taron da ido mai kyau da ke tasowa a tsakiyar tsawa. Guguwar ta kai ga mafi girman ƙarfi a ranar 30 ga watan Maris, tare da matsakaicin iskõki masu ɗorewa da aka kiyasta  km / h (145  bisa ga Cibiyar Kula da Yanayi ta Yankin, Météo-France a La Réunion. Daga baya, Hellen ya raunana da sauri saboda iska mai bushe da hulɗar ƙasa tare da Madagascar, kuma idon guguwar ya ɓace. A ranar 31 ga watan Maris, guguwar ta fadi a arewa maso yammacin Madagascar a matsayin guguwa mai rauni, duk da hasashen da aka yi a baya don cibiyar ta kasance a kan ruwa. A ranar 1 ga Afrilu, Hellen ba ta zama Guguwa ta wurare masu zafi ba bayan yawancin convection sun ɓace. Ragowar ta juya zuwa yamma, ta motsa a kan Mozambique ba tare da sake ginawa ba, daga baya ta ɓace a ranar 5 ga Afrilu.     

Da farko a cikin wanzuwarsa, ruwan sama na Hellen a Mozambique ya lalata daruruwan gidaje da gada. Ambaliyar ruwa ta kashe mutane hudu a kasar, uku daga cikinsu saboda rushewar gida. Daga baya, guguwar ta wuce kudu da tsibirin Comoros, ta haifar da ambaliyar ruwa saboda guguwar guguwa da raƙuman ruwa da suka kashe mutum daya. Guguwar ta tilasta wa mutane 8,956 su kwashe gidajensu saboda barazanar rushewar ƙasa, yayin da gidaje 901 suka lalace ko kuma suka lalace. A kusa da Mayotte, ruwan sama mai yawa ya mamaye koguna, ya kwashe mota daya. A arewa maso yammacin Madagascar, Hellen ya lalata ko ya lalata gidaje 611, ya bar mutane 1,736 ba tare da gida ba. Guguwar ta kashe mutane uku bayan ta rushe jirgin ruwa.    

 Tarihin yanayi 
A ranar 25 ga Maris, 2014, wani yanki mai rauni na matsin lamba Taron da fadi, convection ya zama mai yawa a kan Mozambique. Saboda yanayin muhalli mai kyau, wanda ke nuna ƙananan iska, vorticity ya zama mafi girma da daidaitawa. Tsarin ƙarami, ƙananan an shirya shi a hankali yayin da ya fito a kan Tashar Mozambique a ranar 26 ga Maris. Kodayake ci gaba da hulɗar ƙasa da farko ya hana ci gaba,  ingantaccen fitowar ya goyi bayan ci gaban convective yayin da yake kan iyakar Mozambique-Tanzania. Tare da Yanayin zafi na teku a cikin hanyar guguwar, JTWC ta yi tsammanin ƙarin tsari kuma ta ba da Gargadi na Tsarin Guguwa na Tropical a 2000 UTC a ranar 26 ga Maris. Da zarar ya ci gaba a ranar 27 ga watan Maris, Cibiyar Kula da Yanayi ta Yanayi ta Météo-France a La Réunion ta rarraba tsarin a matsayin Disturbance 14.  Da yake tafiya a hankali zuwa gabas, wani shahararren ƙungiyar mai fitarwa ya haɓaka tare da gefen gabashin tsarin; duk da haka, wannan ƙungiyar ta rushe ƙarancin shigarwar iska mai dumi, mai laushi, da kuma hana convection a kan cibiyar zagayawa.     

Kodayake convection daga baya ya fara karfafawa cikin wani karamin tsakiya mai zurfi (CDO) a ranar 28 ga watan Maris, ci gaba da rushewar ƙarancin matakin ya hana ci gaba sosai. Météo-France ta lura cewa duk da hasashen guguwar za ta kai kololuwa a matsayin guguwa mai matsakaici, tare da iskõki na  km / h (50 , akwai yiwuwar saurin karuwa saboda ƙaramin girman guguwar. Sabanin haka, JTWC ta lura cewa kusanci da ƙasa da iska mai bushewa, wanda ke wakiltar iyakokin fitowar ƙasa, na iya hana ci gaba mai mahimmanci. Da zarar ya ci gaba a kan tashar Mozambique, tsarin ya zama mai ƙara tsari kuma JTWC ta fara ba da shawara game da guguwar a matsayin Tropical Cyclone 21S. Météo-France ya bi wannan a 0000 UTC a ranar 29 ga watan Maris kuma ya rarraba guguwar a matsayin guguwa mai matsakaici, tare da cibiyar gargadi ta guguwa a Madagascar da ke ba da sunan Hellen. Ba da daɗewa ba Hellen ya ɗauki hanyar gabas zuwa tudun maso gabas zuwa Madagascar, yayin da tudu ya kafa kansa zuwa arewa maso gabas. A cikin watan Maris 29, guguwar ta kara shirya tare da ido a bayyane akan Hotunan tauraron dan adam na microwave.    

 Shirye-shiryen da tasiri 
A lokacin da aka kafa shi, Hellen ya yi yawo a arewacin Mozambique kuma ya samar da ruwan sama mai yawa a yankin. Birnin Pemba a Lardin Cabo Delgado shine yankin da ya fi fama da cutar, tare da Kogin Messalo ya mamaye bankunan sa. Tagir Carimo, magajin garin Pemba, ya bayyana ruwan sama a matsayin mafi nauyi da ya gani a cikin shekaru 20. Fiye da gidaje 100 da ba a gina su ba sun rushe a cikin ambaliyar yayin da mummunar lalacewa ta fallasa kuma ta lalata bututun ruwa. Babban gada da ke haɗa Pemba zuwa yankunan da ke kewaye da shi ya wanke ta kogin Messalo. Wannan ya ware yankin arewacin Lardin Cabo Delgado daga sauran ƙasar, yana tilasta jiragen ruwa su kai motoci. Mutane uku sun mutu a gundumar Cariaco lokacin da gidansu ya rushe yayin da na huɗu ya nitse a Chiuba .  Rarraba taimako bayan guguwar ta rushe ta hanyar hanyoyin da suka lalace.  

 Tsibirin Comoro 
Ruwan sama mai tsanani da guguwa ya haifar da mummunar lalacewa a duk tsibirai uku na Comoros, tare da mafi munin da ke faruwa a Anjouan. A can, gidaje 901 sun lalace, daga cikinsu kimanin kashi 20% sun lalace. Ambaliyar ruwa ta kori mutane 389 a Salamani inda aka lalata gidaje 33 da aka gina da laka. Rugujewar ƙasa ta ware ƙauyukan Chiconi, Hamaba, Koni-Djodjo, Miringoni, da Nioumachioi,  kuma ta lalata hanyar tsakanin Ngandzalé da Domoni. A tsibirin, mutane 7,879 sun kwashe gidajensu saboda haɗarin ci gaba da rushewa, wasu daga cikinsu sun tafi makarantun da aka kafa a matsayin mafaka yayin da wasu suka zauna tare da dangi ko abokai. Hadari na guguwa a kan Mohéli ya ambaliya sassan Tsamia, Walla, da Zirindani, wanda ya haifar da mace-mace guda ɗaya. Gidaje da yawa sun lalace a tsibirin, kuma Djandro ya rasa wutar lantarki saboda lalacewar layin wutar lantarki. An rufe Filin jirgin saman Yarima Said Ibrahim da ke Moroni a kan Grande Comore na kimanin awanni 24 saboda guguwar. Har ila yau a tsibirin, wata hanya ta lalace, kuma gida daya ya cika da ambaliyar ruwa. Ba da daɗewa ba bayan guguwar, ma'aikata sun fara gyara hanyoyi da rarraba taimako.     

Kodayake cibiyar Cyclone Hellen ta kasance a kudancin , ta haifar da "farkawar orange" a ranar 30 ga watan Maris don yankin saboda yiwuwar guguwa. Saurin karuwar guguwar ya kama yawancin mazauna tsibirin ba tare da tsaro ba, tare da yaduwar rikice-rikice ga zirga-zirga da wutar lantarki da ke faruwa. Rashin iska har zuwa  km / h (62  ya rushe bishiyoyi da layin wutar lantarki, yana toshe hanyoyi yayin da ruwan sama mai yawa ya haifar da ambaliyar ruwa. An auna ruwan sama na awa 24 na   in) a Mtsamboro tsakanin Maris 29 da 30.  M'Tsangamouji, motoci sun kwashe ta hanyar kogi mai kumbura. A bakin tekun, raƙuman ruwa har zuwa 5   sun lalata tashar Jiragen ruwa a Dzaoudzi, Hagnoundrou, da Mamoudzou inda aka rushe jiragen ruwa a kan duwatsu ko kuma suka makale. 

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