The skies have been full of contrails the last few days and today will be another one.
Here is a recent visible satellite photo...you see all the lines over southwest Washington?..those are contrails. Lots of contrails.
Sunday will feel like summer. According the the Seattle Profiler (mainly funded by the Puget Sound Clean Air Agency) temperatures are far warmer aloft (4-6F) today than yesterday and southeasterly flow is just above the surface (see graphic below, time increases to the left, temp (red lines) in C, height in meters). Such SE flow is generally very warm, as air sinks and warms on the western slopes of the Cascade Mountains. As a weather disturbance approaches our coast today, the offshore flow will strength.
Go outside and enjoy the warmth. It won't last...showers and clouds on Monday.
Well, the forecast max temps were a bit off...much of the area got into the 70s and some locations hit 80F. Here is the max temps as of 5 PM. Note how some of the warmest temperatures were in the foothhills (Enumclaw, North Bend), something we expect with offshore, downslope flow.
Bellingham Talk on October 15th
I will be giving a public talk on "The Future of Weather
Forecasting" in Bellingham on October 15th. In this talk, I will
discuss the development of weather prediction from folk sayings to
numerical weather prediction, and will describe what I think will happen over
the next decades. For more information, go here.