Just an FYI, it is thought by some that many of these bacteria evolved this mechanism to get themselves put back on the ground where their chances of survival are much better. It is also thought by some that some of the bacteria that are frost nucleation species, may be doing so as to induce damage to the plant providing themselves a food source. As Tom says, "it's all related", and the sooner people accept that they are not isolated from the natural environment, that there IS consequences for their actions, the better. On the flip side, not all consequences are negative or even meaningful, and occasionally they are in fact beneficial. As example, our non-native Shantung Maple has turned out to be an excellent host for the native Silk Moth (see link). Arktrees Here is a link that might be useful:

Peter: It is a whole other world taking pics like that during the day. My friend is trying to figure that out although he gets some great cloud formations before and after the storms. Nice work. I hope to see more pics by you. Jojo: I have heard the monsoons can be quite dramatic! I have even seen the storm drains dug all around the outskirts of peoples home but never saw them fill up. I can only imagine that. I have seen lightning from a distance and been very frustrated chasing them because the roads there a long and straight with no way to turn down another for miles to catch up to it..lol Been there done that. Have you ever seen lightning drop from the clouds over the prairies or horizon? It must be majestic! It is nice to meet Peter. It is always nice to see new faces. I would never come there without visiting some very nice people here if the offer is there. Going there to see people I know would be so nice. We would have to visit the Indian Reservations though, Saguaro Cactus Preserve, and look for turquoise jewelry..lol I have danced with the Navaho tribes once before! I hope many others come here with nice pictures. I would of loved to have sene the hail storm ones that some here have experienced! Mike

There have been some severe tornados in the south and that looks almost like those I saw on tv except those were black.Thanks for sharing.

Doris..... I don't know where you are in MI, but we were in Kalamazoo all day Sunday, and it rained and rained and rained during a car show we attended. Your cloud is very pretty, but the mud we walked in was not. Julie