Our local area in Virginia had the coldest winter in 20 years. We just returned from a mission trip in Hanford CA, where the winter was the warmest in years but also very dry. But Spring changes things, because the elegant and perfect orbit of the planet around the sun, the rotation of the earth, and the axis that points to an almost constant place in the celestial sphere, Spring brings air flow changes on the surface of the middle northern latitudes. The winds pick up; the fronts are typically rapid. The air column is frequently unstable. Fluctuating temperatures are more dynamic than other times during the year. Cloud cover changes rapidly.
It makes observing a challenge sometimes because the sky changes fast. That is the subject of this observation during early March five years ago. The lesson is embedded in the observation sheet….