Hunyoro hunoreva huwandu hwemvura iri mumhepo. Kana mvura ichinaya, mhepo inonyorova zvikuru nekuti ine mvura yakawanda. Kusiyana neizvi, kana mhepo ine mvura shoma kana kuti isina, mhepo yacho yakaoma zvikuru. Huwandu hwemvura iri mumhepo hunoratidzwa sehunyoro.
Hunyoro hunoenderana nehuwandu hwekumanikidzwa kwehunyoro nehunyoro hwakaguta hwemvura patembiricha yakati (nekuti hunyoro pano tinoreva hunyoro hwemvura). Hunyoro hunoenderana hunoratidzwa sechikamu, hwakarongwa nemasvomhu seizvi:
Kune izwi idzva, iro rinoreva kumanikidzwa kwechikamu. Kumanikidzwa kwechikamu ndiko kumanikidzwa kunoitwa negasi rega rega riri mumhepo. Mhepo inoumbwa nemhando dzakasiyana dzemagasi... kune nitrogen (78%), okisijeni (21%), argon (0,90%), kabhoni diokisijeni, utsi hwemvura, nezvimwewo. Huwandu hwekumanikidzwa kwechikamu chegasi rega rega riri mumhepo hunonzi kumanikidzwa kwese (kumanikidzwa kwese = kumanikidzwa kwemhepo = kumanikidzwa kwemhepo). Kana pasina huwandu hweutsi hwemvura mumhepo, saka kumanikidzwa kwechikamu cheutsi hwemvura = 0. Kusiyana neizvi, kumanikidzwa kwechikamu cheutsi hwemvura kwakanyanya kana kumanikidzwa kwechikamu cheutsi hwemvura = kumanikidzwa kweutsi hwemvura hwakazara. Kumanikidzwa kweutsi hwemvura hwakazara kunoenderana nekupisa (ona tafura iri pamusoro).
Kana kumanikidzwa kwechikamu chemhute yemvura = kumanikidzwa kwemhute yakawandisa (hunyoro hwepakati = 100%), ipapo mhepo inozara nemhute yemvura… Kana mhepo yazara nemhute yemvura, huwandu hwemhute yemvura mumhepo hunosvika padanho rayo guru… Kana kumanikidzwa kwechikamu chemhute yemvura > kumanikidzwa kwemhute yakawandisa (hunyoro hwepakati > 100%), ipapo mhepo inozara… Kana mhepo yazara, mhepo haichakwanisi kubata huwandu hwemhute yemvura… Nekuti mhepo haichakwanisi kubata huwandu hwemhute yemvura, mhute yemvura yakawandisa inozara mumvura (verenga: dova)... Tembiricha iyo mhute yemvura inozara kuita dova inonzi dova point.
