In the spring of 2009, I wrote a couple scripts to automate collecting webcam and visual satellite images of the Great Smoky Mountains National Park and creating animations from them. Recently I put the archive of those animations online after a few requests. The archive also records the past 24-hour temperatures, precipitation, and snow depth for the day selected.
Questions like, when’s a good time to see fall colors, can be now be answered with a visual assessment from last year’s observations. Combare the days between October 10 and October 22, 2009, for a good answer. Between those days, the smokies received its first snowfall.
The archive can be found here: http://www.outragegis.com/weather/img/animation
After a few months of intermittent outage, the four webcams that cover the Great Smokies are all working. Now we can compare sky conditions on both sides of the mountain and also observe sunrise and sunset. The webcam animations also work, too!
Overnight the temperature dropped to 25° F at the Newfound Gap weather station, elevation 5,000 ft. Mt LeConte at 6400 ft above sea level recorded a low temperature of 31° F. The slight warming at 1,400 ft higher in elevation is caused by a temperature inversion that most frequently happens in autumn mornings.
So the month of May is nearly done and with it, ends the month-long celebration of the bike and human-powered travel. As a hiker, I often worry about my environmental impact during a drive to a favorite trailhead.
