Take a look at the temperatures on both sides of the Cascades for the past four weeks at Spokane, Sea-Tac, Olympia and Pasco--today is the coldest for all of them, with cold air aloft, few high clouds , and relatively light winds.. This combination allows the surface to radiate heat to space without a lot of mixing of warmer air down from above.
But the coldest regional temperatures in this kind of situation are usually in the valleys over the uplands of eastern Oregon. Here is the proof (only showed temps below 20F). Teens are nothing there and several locations had single digits.
Today will be a cool day (highs in the mid-40s) and many of you will see some sun as the fog and low clouds burn off. Unfortunately, the next weather system is moving in more quickly than expected a few days ago, with rain hitting the coast early Sunday and reaching the western interior by roughly 1-2 PM that afternoon (see graphic)--so enjoy the outdoors today. It will be perfect weather for raking leaves (my task this morning!)
|Forecast precipitation for the 3-h period ending 1 PM Sunday. Note that "cin" means hundredths of an inch (32 is .32 inches in 3 hour)|
What you might not know is that this blog would surely not have existed without him. I was an undergraduate at Cornell and was really interested in both astronomy and meteorology. Sagan took me under his wings and we worked together on a model of the Martian atmosphere (my first publication). He impressed on me the need and importance for scientists to communicate directly with the public: that this is an essential requirement if science and society are to flourish. His impact on me was profound and this blog and my work at KPLU are an outgrowth of this influence. Sagan was not afraid to talk about the societal implications of his research, be it about the sustainability of our planet, the potential for nuclear winter, or the need for a scientifically literate population. When KUOW's Steve Scher gave me an ultimatum that I could only talk about weather on his Weekday program, and never about science/math education and the implications of my science, I thought of Sagan and knew what he would counsel. Better to be kicked off KUOW than compromise important principles.
Sagan is surely missed, but his influence and importance continue today.
|Carl Sagan and me on my graduation day. I look a bit younger!|