More Crazy PC Temps
We begin with yesterday afternoon's sounding from Riverton in central Wyoming. Note in particular the extremely shallow nature of the cold airmass, which is capped by an incredibly strong temperature inversion in which temperatures increase from about -24ºC to -8ºC.
Peter Sinks Gets Really Cold
The Peter Sinks are sinkholes in the Bear River Range east of Logan and are well known for extreme cold temperatures. Utah's record low temperature of -69.3ºF, which is also the 2nd lowest temperature ever recorded in the continental U.S., was recorded there on 1 February 1985. Yesterday, instrumentation from Utah State showed a minimum temperature of about -50ºF (special nod to reader Aaron Saks for reminding me to have a look at the sinks). Note how during the day yesterday, temperatures on the rim (red line) were higher than the previous day, but in the bottom of the sink (blue line), they were colder.
We've made it half way through inversion season without many problems, that is changing now. Snow covered ground, a low-angle sun, and a long-range forecast with a developing ridge mean we're in for problems.
A special shout out to everyone at PCTV for inviting me for an interview about Secrets of the Greatest Snow on Earth yesterday morning. You can catch it below.
Demand for Secrets of the Greatest Snow on Earth has been incredible and it sold out pretty much everywhere before Christmas. Books are, however, in the supply chain and both Amazon and Barnes and Noble online had copies available as of yesterday (although they were getting snatched up fairly quickly). If you want one from a local shop, don't despair. Both Kings English and Weller Book Works have more coming and I suspect the same can be said elsewhere. Call ahead and reserve one.
AMS Alumni and Friends Gathering
If you are attending the Annual Conference of the American Meteorological Society next week in Phoenix, please come by our Alumni & Friends reception on Tuesday evening. Info below.
Whoa...I need a blog vacation.