1.   A red morning sky is a sign of an impending storm.

2.   Although the sky is beginning to cloud over, there are still plenty of gaps where groups of stars shine through.

3.   Blue skies are criss-crossed with a network of overhead wires.

4.   By late afternoon the sky was completely opaque and a thick gloom hung over the ocean as if night had fallen prematurely.

5.   By morning thick clouds drift over, but the sky between them is deep blue and occasionally the sun peeks through.

6.   By now the skies were black, a chill wind was blustering down the street and the rain was slashing sideways.

7.   Cloudy skies were forecast.

8.   Even when Peter began, the sky was pale, the winds were calm, and the air was temperate.

9.   How come the sky is blue?