New answers tagged


Your roof won't rise in this case. Your roof will simply crush. If tornado wants to lift your roof, its outer air would exert an equal downward force on ground. If its of exact diameter that force would be exerted on your walls that support roof and crush down your roof.


Aside from the trivial possibility that a warm front passes through during the night, a frequent occurrence in winter (where I live) would be that you have a cold, sunny day, but that cloud cover begins to increase some time after the Sun has set. The cloud cover acts as a blanket, preventing infrared radiation from the ground escaping into space. This has ...


The ambient temperature comes out of many different factors, and daytime normally is warmer due to sunlight, but the largest single factor is simply how warm the air is... And that air can blow in from other places. The easiest time to notice this is when a front blows through your area in the middle of the day: the sunlight stays the same, but the air ...


This is a side view in a high pressure area and low pressure area: The high pressure air flows outward from its center (moving from higher pressure to lower pressure) and to the ground, whereas the low pressure air flows towards its center (from low pressure air to even lower pressure air). The low pressure air forms clouds when it flows towards its ...


A rule of thumb exists if coriollis force is the dominant force balancing the pressure gradient. This is known as the geostrophic balance : $$ \overrightarrow{V_g} = {\hat{k} \over f} \times \nabla_p \Phi $$ However if only a pressure gradient is being maintained by some source then the velocity will keep increasing as the pressure gradient results in ...


I have no direct experience with meteorology, but if you want the "rule of thumb", study the Euler equations. Specifically: $$ \nabla p = - \rho\frac{\mathrm{D}\vec{v}}{\mathrm{D}t} $$ where D denotes the material derivative. That's the root of all other derivations.

Top 50 recent answers are included