Siyazi ukuthi izindimbane zomoya ziyizindikimba ezinkulu ezisemkhathini lapho kunezimo zomswakama nezimo zokushisa ezihlukile eziveza uhlobo lomoya oshisa phansi esibhekene nawo. Lezi zindimbane zomoya zamukela izici zendawo ezakheke kuyo futhi zincike ekunyakazeni ezikhiqizayo lapho zidalwa. Ngokwokusimama kwenqwaba yomoya singathola izinhlobo ezahlukahlukene zezingqimba. Namuhla sizokhuluma ngakho ibunzi elifudumele kanye nezici zabo.
Uma ufuna ukufunda kabanzi mayelana nemvelaphi nemiphumela ye-front efudumele, lokhu okuthunyelwe kwakho.
Izindimbane zomoya nokuzinza komkhathi
Ukuze siqonde ukuthi iyini indawo efudumele, kufanele sazi amandla asemkhathini maqondana nokusebenza kwenqwaba yomoya. Ukusimama kwazo zonke izindimbane zomoya yikhona okunquma isimo sezulu sasemkhathini esenzeka endaweni ethile. Uma sinomoya ozinzile sikhuluma ngendawo lapho ukunyakaza kungavunyelwe ngokuma. Ngakho-ke, ukwakheka kwamafu emvula akunakwenzeka. Lapho kunokuzinza komkhathi, kufanelekile ukukhuluma ngama-anticyclone. Ngenkathi umoya ozinzile uthanda isimo sezulu esihle.
Ngakolunye uhlangothi, lapho kunomoya ongazinzile, siyabona ukuthi ukunyakaza okumi mpo kuyathandwa futhi amafu emvula akhiqizwa ngesimo sezulu esibi. Lezi zimo zihlotshaniswa nokudangala kwazise kukhona ukwehla kwengcindezi yasemkhathini nokwakhiwa kwesiphepho.
Uma isisindo somoya sijikeleza ngaphezulu kwendawo epholile, kubhekwa njengomoya oshisayo. Ukunyakaza kobuso obunamazinga okushisa aphansi kuzoqala ukupholisa ingxenye esondele kakhulu emhlabathini. Ngale ndlela, njengomoya ebusweni iqala ukuphola iba lukhuni futhi isinde. Ngalolu hlobo lwezimpawu, ukunyakaza komoya okuqondile kuyavinjelwa, ngaleyo ndlela kwakheke umoya ozinzile. Lokhu kuzinza kuveza ukuba nemimoya ebuthakathaka, ukuguquguquka kokuma mpo okubanga ukwanda kothuli lokungcola okukhona ezingqimbeni ezingezansi. Lokhu kuzinza kuyinkinga emadolobheni angcoliswe kakhulu. Sibona nobunye ubunzima bokubonakala okugcwele namafu ambalwa ngokukhula okuqondile.
Ngakolunye uhlangothi, uma ubukhulu bomoya bujikeleza ngaphezulu kobuso obufudumele kunalokho obubizwa ngokuthi yi-cold air mass. Njengoba ijikeleza ngaphezulu, umphumela ohlukile kulowo esiwuchazile uzokwenzeka. Kuzoqala ukushisa ezansi kwayo bese ziba minyene kakhulu, ezizovumela ukunyakaza okuqondile. Lokhu kuphenduka isigaxa somoya esingazinzile esidala ukwanda kwamandla omoya, ukuthuthuka kokubonakala, kepha ukuthuthukiswa kwamafu nemvula.
Ingaphambili elifudumele
Njengoba sesibonile, izixuku zomoya zibonakala ngokuba nezimo zokushisa ezifanayo kanye nomswakama kuzo zonke. Kungakho kufanele sihlukanise izindimbane zomoya ngendawo engaqhubeki. Ngokuya ngezici abanazo emngceleni wenqwaba yomoya singabona ukwakheka kwengaphambili elifudumele, a kubanda ngaphambili, ingaphambili elivalekile noma ingaphambili elimile.
Ingaphambili elifudumele lakha lapho umoya ofudumele ufinyelela uquqaba lomoya obandayo. Umoya oshisayo uvame ukukhuphuka phezu kwezixuku zomoya ezinezinga eliphansi lokushisa. Lesi sibalo esiphansi sokushisa somoya saziwa ngokuthi umkhakha obandayo. Lapho izixuku zomoya zishayisana, ukufiphala kwenzeka futhi kwakheke amafu. Isici esiyinhloko sengaphambili elifudumele ukuthi linomthambeka omncane. Lokho kusho ukuthi, imvamisa ihamba ngejubane elijwayelekile cishe elingu-30 km / h futhi inokuphakama kwesembozo sefu cishe esingamakhilomitha ayi-7. Lokhu kusho ukuthi amafu avelele aphansi naphakathi.
Amafu nemvula kuyakhula eduze kwendawo yokuxhumana phakathi kwalezi zixuku ezimbili zomoya. Phakathi kokuvela kwamafu okuqala nokuqala kwe- imvula kungenzeka phakathi kwamahora angama-24-48.
Isimo sezulu esifudumele ngaphambili
Ake sihlaziye ukuthi siyini isimo sezulu esilethwa yi-front efudumele. Isimo somoya esibangelwa ingaphambili elifudumele siqala ngokubonakala kwamafu aphezulu. Lawa mafu aphakeme aziwa ngokuthi amafu e-cirrus. Ngokuvamile zitholakala emqondweni noma eduze kwamakhilomitha angaba ngu-1000 noma ngaphezulu ngaphambili. Ukwehla kwengcindezi kuvame ukuqala ngenxa yokukhuphuka komoya ofudumele kanye nokuhoxa komoya obandayo.
Kancane kancane, siyabona ukuthi isibhakabhaka siba namafu kanjani njengoba sisondela engxenyeni ebaluleke kakhulu yomugqa ongazinzile. Amafu weCirrus aba ku-cirrostratus ekhulisa kakhulu ngokwengeziwe ukwakha i-altostratus. Kuye ngokungazinzi kwengaphambili, kungase kungeze ukuconsa ngesikhathi kwakheka la mafu. Siyabona ukuthi amanani okucindezela ayaqhubeka ehla futhi isivinini somoya siyakhuphuka. Siyazi ukuthi umoya uphephethela ezindaweni lapho kunomfutho ophansi khona. Ngakho-ke, uma kukhona ukwehla komfutho ongaphezulu njengoba kuphakama umoya ofudumele, umoya uzovunguza uqonde kuleyo ndawo.
Ekugcineni, kuvela i-nimbostratus. Lezi zinhlobo zamafu zitholakala ngaphambili futhi ziyimbangela yemvula ebaluleke kakhulu. Umoya ufinyelela umfutho wawo omkhulu futhi ingcindezi isalokhu yehla. Amafu aphansi njenge strata ezakhiwe ngokwanda komswakama ngenxa yemvula ekhiqizwayo. Amanye ala mafu ayedwa futhi anesibopho sokufihla amanye amafu aphezulu futhi akhiqize inkungu engaphambili. Kwesinye isikhathi, Le nkungu inganikeza izinkinga zokubonakala emkhathizwe.
Ama-front ahamba kancane kancane futhi ngokuvamile akhiqiza imvula elula ukuya emaphakathi. Isici esivelele se-front efudumele ukuthi, nakuba kunezimvula ezilinganiselwe nezilula, zithinta indawo enkulu yezwe kanye nesikhathi eside. Ngokuvamile lezi izikhathi ezibandayo zasekwindla noma ekuqaleni kwentwasahlobo noma ebusika. Kulezi zikhathi, imvula ingenzeka ngendlela yeqhwa, bese iphenduka ibe yizingungungu futhi igcine njengemvula.
Ngiyethemba ukuthi ngalolu lwazi ungafunda kabanzi ngephambili elifudumele nezimpawu zalo.