For tonights peak of the Leonid meteor shower the good news is that the weather will be clear and the moon is out of the night time sky. The bad news is the weather. Last night at the Pony Express marker, which is close to "pit n pole", the temperature dropped to zero and the humidity spiked up to 90 percent. So anything optical like a telescope, or camera lense will suffer from frost and be useless without vigorous countermeasures. There is no measurable inversion so climbing up a ridge line will not get you out of these frost conditions. I would suggest anyone going out to try leave the optics home and plan on a survival strategy like two cars and a tow strap. As well as your warmest winter clothing. I plan to go to Little Mountain after midnight but don't plan to say long enough to get frostbite. Good Luck DT