While a few clouds might drift across the region here and there, it is a very dry and warm forecast ahead of us here in western Nevada. Temperatures will be climbing into the mid-90s Friday and will likely peak near record levels close to 100 degrees by Monday. The flow is quite stable, so while a few clouds could result from the afternoon heat, the chance of any of them developing into thunderstorms is quite low.
Yesterday I said it was theoretically possible to have 0% relative humidity…in laboratory conditions. But we don’t live in a lab, and there is always some water vapor present in the air. Oceans, lakes, rivers, and even plant life sees to that. Air, by its very nature, is somewhat self-regulating that way. The drier you make it, the more it wants to pull water molecules out of whatever source is available, including chapped hands. So natural weather processes will never result in a true relative humidity reading of 0%.
So what’s the record for the lowest RH? That’s not as straightforward a question to answer as you might think. I’ll have more on that tomorrow.