Greetings, everybody! I am back to re-calc a feat that, uh, has been being calced quite often here, Esdeath's storm feat .
Here's my pixel-scaling.
Hopefully I didn't pick an unreasonable distance to scale from. I will also choose to assume the height of the storm to be that of a cumulonimbus (11,800m), seeing as the storm jots out a bit.
To find volume...
r = (488px / 3270px) * 12,742,000 meters = 1,901,558.41 meters
A = (1,901,558.41 meters)^2 * 3.141592654 = 1.136e+13 m^2
V = 1.136e+13 m^2 * 11,800 meters = 1.34e+17 m^3
Now, for the mass of the storm, I will assume the cloud's composed of solid snow (which is about 50 kg/m^3) for the high-end and the mass of a normal storm for the low-end.
Here we go:
m snow = 1.34e+17 m^3 * 50 kg/m^3 = 6.702e+18 kg
m cloud = 1.34e+17 m^3 * 1 kg/m^3 = 1.34e+17 kg
Both ends will assume a timeframe of 10 seconds.
Speed: 1,901,558.41 meters / 10 seconds = 190,115.841 m/s
Alright... KE Time...
High-end: 0.5 * 1.34e+17 kg * (190,115.841 m/s)^2 = 1.21e+29 Joules or 28.92 Exatons of TNT (Multi-Continental+)
Low-end: 0.5 * 6.702e+18 kg * (190,115.841 m/s)^2 = 2.42e+27 Joules or 578.39 Petatons of TNT (Multi-Continental)
Hopefully the assumptions I am making aren't too unreasonable.