We had frost overnight in Prescott, Az on the day before Thanksgiving. The east side of our house is in the morning sun, which is warming it and evaporating the frost making a cloud like swirl. The west side has not received sunlight, so it still has frost.
We had some frost this morning. One image is the roof of our garage, the other our dog Annie sniffing around in the yard. Click on either for a larger image.