Daily Archives: November 12, 2013

Does a cold end to October signal an early winter?

October ended up to be about normal in terms of temperature despite the chilly last couple of weeks. In fact, 14 of the last 17 days of the month were at or below normal. A natural question arises in the face of this cool spell — namely, does this portend a cold start to the winter? Continue reading

Category: Seasons

Comments Off on Does a cold end to October signal an early winter?

What was that dashed line in the sky on Nov. 3?

If you watch jets fly high above, you may notice that sometimes white clouds trail them. These condensation trails are called contrails. Most clouds form as air rises. Contrails form by a mixing process that is similar to the cloud you see when you exhale and “see your breath”. Continue reading

Category: Phenomena

Comments Off on What was that dashed line in the sky on Nov. 3?