Breast milk is still considered frozen should there be any amount of ice particles remaining in it. (pumpables.co)
These particles crash into smaller ice particles in the swirling winds inside storm clouds, resulting in a separation of electrical charge. (realclimate.org)
«Lightning is caused by charge separation within clouds, and to maximize charge separation, you have to loft more water vapor and heavy ice particles into the atmosphere,» he said. (sciencedaily.com)