They form over large lakes and oceans during cold air outbreaks while the water is still relatively warm, and can be an important mechanism in vertically transporting moisture
घांटमाथ्यावर कोठें थंड, कोठें समशीतोष्ण हवा आहे व सुधागड तालुक्यांत उष्ण हवा आहे.