Guguwar Chalane mai zafi

Tsananin Guguwa mai zafi Chalane shine farkon guguwa mai zafi guda uku a jere da ta afkawa Mozambique a cikin 2020-21 Kudu maso Yamma guguwar Indiya. A matsayin baƙin ciki na huɗu na wurare masu zafi, guguwa mai suna na uku, da kuma guguwar yanayi mai tsanani na biyu na kakar, Chalane ya taso daga wani yanki na rikicewar yanayi wanda aka fara sa ido kan RSMC La Réunion a ranar 19 ga Disamba. Duk da yanayin da sannu a hankali ya zama mara kyau, tsarin ya kasance cikin yanayin zafi a ranar 23 ga Disamba saboda kasancewar igiyar Kelvin da igiyar ruwa ta Rossby a equatorial, da kuma yanayin zafi na saman teku. Bacin rai ya ƙara ƙarfi zuwa Tropical Storm Chalane a rana mai zuwa. Chalane ya yi kasa a Madagascar a ranar 26 ga Disamba kuma ya yi rauni, kafin ya shiga tashar Mozambique kwanaki biyu bayan haka. Daga baya, Chalane ya sake samun ƙarfi, kafin ya kai ƙasar Mozambique a ranar 30 ga Disamba. Tsarin ya raunana yayin da yake motsawa cikin ƙasa, yana raguwa zuwa raguwar raguwa daga baya a wannan rana. Duk da haka, ragowar Chalane sun ci gaba da tafiya zuwa yamma na wasu kwanaki, suna fitowa cikin Kudancin Atlantic a ranar 3 ga Janairu, kafin su bazu daga baya a wannan rana.

Kamar yadda Chalane ya ƙarfafa, an fara haɗa kayan agajin gaggawa a Madagascar, Mozambique, da Zimbabwe, kuma Cibiyar Gargaɗi ta Haɗin Kan Guguwar ta ba da sanarwar Ƙarfafa Guguwar Ruwa (TCFA). A karshen ranar 26 ga Disamba, Chalane ya yi kasa a Madagascar, wanda ya haddasa ambaliya. Amma gaba ɗaya, an sami ɗan lalacewa. An mayar da Chalane zuwa yanayin zafi yayin da yake wucewa ta Madagascar. A ranar 30 ga watan Disamba, Chalane, wanda yanzu ya zama ruwan zafi mai tsanani, ya yi tasiri a Mozambique, cibiyoyi da dama sun lalace, amma Chalane ya yi kasa da barna fiye da yadda ake tsammani. A wannan rana, Chalane ya yi kasa a Zimbabuwe, kafin ya ragu zuwa kasa. Ragowar dai na haifar da ruwan sama a wasu kasashe makwabta. Gabaɗaya, mutane 7 sun mutu a Mozambik kuma barnar ta kai dalar Amurka 134,000 (dalar Amurka 2020).

 Tarihin yanayi 
A ranar 19 ga Disamba, RSMC La Réunion ya fara sa ido kan wani yanki na rikice-rikicen yanayi mai nisan kilomita 830 (520 mi) kudu maso yammacin Diego Garcia.Tropical Cyclone Activity Bulletin for the South-West Indian Ocean (12Z)" (PDF). Météo-France La Réunion (in French). 19 December 2020. Retrieved 20 December 2020. Tsarin ya kasance a cikin yanayi mai kyau don haɓakawa saboda kasancewar igiyar Kelvin da igiyar ruwa ta equatorial Rossby, da kuma yanayin zafi na saman teku. Chalane ya sami juzu'in iska mai ƙanƙanci zuwa matsakaici a tsaye da kyakkyawan fitowar matakin sama."Significant Tropical Weather Advsiory for the Indian Ocean (18Z)". Joint Typhoon Warning Center. Naval Meteorology and Oceanography Command. 19 December 2020. Archived from the original on 20 December 2020. Retrieved 20 December 2020. Yanayin ya fara lalacewa a cikin kwanaki masu zuwa yayin da tsarin ke nufi zuwa yamma, duk da haka guguwar ta yi nasarar kaiwa ga yanayin zafi a ranar 23 ga Disamba yayin da iska ta arewa ta fara rinjayar guguwar wanda ya haifar da yawancin ayyukan tsawa da iskoki zuwa kudancin cibiyar. Kusan kwana ɗaya daga baya a 06:00 UTC 24 Disamba, ɓacin rai ya ƙarfafa zuwa Matsakaici na Tropical Storm Chalane yayin da wucewar watsawa ta bayyana iska mai ƙarfi a gefen kudu na filin iska mai asymmetric. Tun lokacin da guguwar ta kasance mai daidaitawa tare da tudun wurare masu zafi, Chalane ya fara ƙarfafawa, tare da iskar da ta kai kilomita 75 / h (47 mph) yayin da iska ta ragu. Kusan lokaci guda, Cibiyar Gargaɗi ta Haɗin gwiwar Typhoon ta ba da Faɗakarwar Ƙirƙirar Cyclone (TCFA). A ranar 21:00 UTC, JTWC ta sanya Chalane a matsayin Tropical Storm 07S."TROPICAL CYCLONE 07S (CHALANE) WARNING NR 001". Joint Typhoon Warning Center. December 24, 2020. Archived from the original on December 30, 2020. Retrieved December 24, 2020.

Koyaya, Chalane ya ci gaba da kokawa daga tasirin iska mai ƙarfi daga arewa zuwa arewa maso gabas. Chalane ya wuce kawai zuwa kudancin tsibirin Tromelin a ranar 25 ga Disamba inda aka rubuta matsa lamba na 1,001.5 hPa (29.57 inHg), yana nuna yiwuwar Chalane ya raunana yayin da yake nuna yanayin girgije mai lalacewa, saboda haka Chalane ya koma baya zuwa yanayin zafi na zafi akan 18: 00 UTC a ranar. Sannu a hankali, Chalane ya ci gaba da zuwa yamma zuwa gabar tekun Malagasy a matsayin baƙin ciki na wurare masu zafi. Ayyukan convelona sun kasance sun lalace yayin da cibiyar ta hanzarta zuwa yamma har zuwa faɗuwar ƙasa a ranar 26 ga Disamba da ƙarfe 18:00 UTC a Mahavelona, Madagascar. Chalane ya rikiɗe zuwa wani tudun ruwa jim kaɗan bayan haka a ranar 27 ga Disamba, ko da yake har yanzu cibiyarsa ba ta daɗe. MFR ta daina ba da shawarwari a wannan lokacin, saboda sake ƙarfafawa ba ta da tabbas. Chalane ya ratsa Madagaska a sauran ranan nan, kafin ya fito a tashar Mozambik a ranar 28 ga Disamba, inda aka ci gaba da ba da shawarwari kuma Chalane ya sake komawa cikin yanayin zafi. Sa'o'i shida bayan haka, Chalane ya sake ƙarfafawa zuwa wani matsakaicin guguwa mai zafi, tare da haɓaka wata ƙungiya mai lankwasa. Chalane ya ci gaba da ƙarfafawa tare da ƙaƙƙarfan ƙanƙara na tsakiya tare da bandeji mai lankwasa yana bayyana akan hotunan tauraron dan adam Chalane ya sami matsayi mai tsanani na yanayi mai zafi a 06:00 UTC akan 29 Disamba tare da samuwar bangon ido.Tropical Depression 4 (Chalane) Warning Number 20/4/20202021" (PDF). Meteo France La Reunion. December 28, 2020

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