Guguwar Tsakiyar Pacific ta 2006

Guguwar tsakiya ta Pacific ta 2006, wanda aka fi sani da Invest 91C ko Storm 91C, tsarin yanayi ne mai ban mamaki wanda aka kafa a shekara ta 2006. An kafa shi a ranar 30 ga Oktoba daga guguwa ta tsakiya a arewacin Pacific, ya motsa a kan ruwa mai dumi fiye da yadda aka saba. Tsarin ya sami wasu siffofi da suka fi dacewa da Guguwa ta wurare masu zafi har ma da guguwar wurare masu zafi. Koyaya, yayin da yake kusa da gabar yammacin Arewacin Amurka, tsarin ya fadi, ya ɓace ba da daɗewa ba bayan ya sauka, a ranar 4 ga Nuwamba. Rashin ruwa daga ragowar guguwar ya haifar da ruwan sama mai yawa a British Columbia da Pacific Northwest. Ba a san ainihin matsayi da yanayin wannan yanayin ba, tare da masu binciken yanayi da hukumomin yanayi suna da ra'ayoyi daban-daban.

 Tarihin yanayi 
A ranar 28 ga Oktoba, 2006, guguwar da aka yanke a kan tsakiyar arewacin Pasifik ta motsa a kan wani yanki na teku tare da yanayin zafin teku kamar 2 ° C sama da al'ada, a 16-18 °C (61–64 °F), kuma ta tsaya a can har tsawon kwanaki biyu.[1][2][3] A watan Oktoba 31, tsarin ya sami convection, mai zafi fiye da na al'ada, [1] da siffa mai kama da ido.[3] A wannan lokacin guguwar ta koma gabas, sannan ta nufi arewa maso gabas, kafin ta juya zuwa arewa maso yamma[1]. A ranar 1 ga Nuwamba, tsarin ya kai kololuwar ƙarfinsa, kuma ya yi kiyasin iskar da ke ɗorewa na mintuna 1 na 65 mph (100 km/h) da mafi haɓakar jujjuyawar sa. Bayan haka, guguwar ta yi rauni sannu a hankali, ta karkata zuwa gefe, ta nufi gabas zuwa gabar tekun yammacin Amurka ta Arewa. Cibiyar kewayawa ta wannan tsarin ta wuce kudu da lura buoy 46637 a ranar 1 ga Nuwamba Matsakaicin matsi mafi ƙarancin buoy shine millibars 989 (29.2 inHg). Sauran buoys sun nuna cewa wani yanki mai girma na ƙananan matsa lamba yana da alaƙa da tsarin. Buoy 46637 bai kasance a tsakiyar tsarin ba, don haka yana yiwuwa wannan tsarin yana da ƙaramin ƙaramin matsa lamba fiye da yadda aka auna a zahiri.[1] A ranar 2 ga Nuwamba, iska da ruwan sanyaya sun fara ɗaukar nauyinsu akan 91C, kuma duk abin da ya faru ya ƙare washegari, lokacin da guguwar ta kasance a nisan mil 520 (kilomita 840) daga gabar tekun Oregon.[1] A ranar 3 ga Nuwamba, guguwar ta yi kaca-kaca a tsibirin Olympics a Jihar Washington, inda ta kawo yanayi mai kama da guguwa zuwa yankin Pacific na Arewa maso Yamma, gami da ci gaba da iska a 40 mph (64 km/h) da iska har zuwa 60 mph (97 km/h).[2][3] Bayan faduwarta, guguwar ta yi rauni da sauri kuma ta watse a washegari.[2]


 Tasirin, shirye-shirye, da rikodin 
Dangane da tsarin yanayi, Hukumar Kula da Yanayi ta Amurka ta ba da agogon iska don gabar tekun Oregon.[1] Sabis ɗin Yanayi na Ƙasa kuma ya ba da Gargaɗi mai Girma na Iska don Kudancin Washington Coast da Arewa maso Yamma Oregon. Guguwar ta kawo iska mai karfin gaske zuwa yankin Arewa maso Yamma na Pasifik, gami da ci gaba da iska mai nisan mil 40 a sa'a guda (64 km/h) da kuma iskar da ta kai mil 60 a sa'a guda (97 km/h).[1] Tsarin ya kuma kawo ruwan sama mai yawa zuwa sassan tsibirin Vancouver.[2]

Idan guguwa ta 91C an dauke ta guguwa ce ta wurare masu zafi ko ta subtropical, tana riƙe da rubuce-rubuce da yawa. Tun lokacin da aka kafa shi a 36 ° N, wannan tsarin ya samo asali ne a arewacin latitude na kowane guguwa a gabashin arewacin Pacific basin. Mai riƙe da rikodin da ya gabata shi ne Tropical Storm Wene, wanda aka kafa a 32 ° N kafin ya haye layin kwanan wata.[8] Bugu da kari, bayanan waƙoƙin wannan tsarin ya nuna cewa ya haye daga tsakiya zuwa gabashin Pacific yayin da aka kafa shi a tsawon 149 ° W kuma ya ɓace a 135 ° W. Biyu ne kawai suka rubuta wasu guguwa na wurare masu zafi da suka yi wannan a baya.[8] Koyaya, tunda ba a rarraba guguwar a hukumance ba, waɗannan bayanan ba su da inganci.

 Yanayin tsarin 
Ana muhawara game da rarraba wannan tsarin, tare da hukumomi daban-daban suna la'akari da shi a matsayin guguwa ta wurare masu zafi, subtropical, ko extratropical.

Mark Guishard, masanin yanayin yanayi tare da Bermuda Weather Service, yana da ra'ayin cewa tsarin ya kammala Cyclogenesis na wurare masu zafi kuma guguwa ce ta wurare masu zafi. Masanin yanayin yanayi Mark Lander ya yi tunanin cewa saman girgije sun yi kama da Guguwar Atlantic da yawa, Guguwar Vince musamman. James Franklin, masanin yanayin yanayi a Cibiyar Guguwa ta Kasa, ya ce:Tsarin ya samo asali ne daga gaba... tsarin gaba ya ɓace.... Tsarin convective ya yi kama da guguwa ta wurare masu zafi, maimakon guguwa mai zafi, kuma radius na iyakar iskõki (bisa ga QuikSCAT) yana kusa da cibiyar, kuma ya fi dacewa da guguwar wurare masu zafi. a kan daidaituwa, ya fi zafi fiye da subtropical.Clark Evans na Jami'ar Jihar Florida ya ba da rahoton cewa kayan aikin hasashen sun nuna cewa tsarin tsarin ya dace da na guguwa mai zafi ko guguwa ta wurare masu zafi. NASA, wata hukumar gwamnati da ba ta da ilimin yanayi, ta tabbatar da cewa tsarin guguwa ce ta subtropical.

A cikin bita game da Lokacin guguwar Atlantic ta 2006, Cibiyar Guguwar Kanada ta ɗauki wannan a matsayin guguwa ta extratropical.

A cikin 2016, binciken da Alicia Bentley da Nicholas Metz suka yi ya gano cewa wannan guguwa ta sami canjin yanayi na wurare masu zafi, ta tabbatar da matsayinta a matsayin guguwa na wurare masu wurare masu zafi.

Tun da wannan tsarin yana da iskar minti daya na 100 km / h (65 mi / h), wanda ke sama da iyakar 60 km / h (39 mi / h) tsakanin bakin ciki da guguwa, zai cancanci zama guguwa mai suna idan guguwa ce ta wurare masu zafi ko subtropical. Koyaya, babu wani daga cikin Cibiyoyin Kula da Yanayi na Yankin na Gabashin Arewacin Pacific, Cibiyar Guguwa ta Kasa  da Cibiyar Gudu ta Tsakiya ta Pacific,  sun haɗa da wannan tsarin a cikin ɗakunan ajiyar su na shekara-shekara, kuma ba a haɗa shi cikin fayil ɗin "mafi kyawun waƙa" na hukuma ba.[8] Saboda haka, wannan tsarin ba wani guguwa ne na wurare masu zafi ba ko guguwa na subtropical na lokacin guguwar Pacific na 2006.    

 Dubi kuma 

 Lokacin guguwa na Pacific na 2018
 Guguwar Hawaii ta 1951
 1975 Guguwar Arewa maso Yammacin Pacific
 Guguwar Omeka
 Guguwar Guguwa ta Katie
 Guguwar Guguwa ta Ƙananan wurare
 Guguwar Subtropical 60W
 Guguwar Subtropical 96C

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