The wind swings west of south in a storm,—the fall will be sudden.
A snowstorm begins, for a short time only.
A cloudy day clears at sunset.
Snow flurries are seen.
The sky shows green and the clouds look hard.
The temperature will rise when:
A thunderstorm is brewing, or a day or two before a winter cyclone.
After a thunderstorm if another is to follow.
The morning is free from clouds and if it is not the first day of a cold wave.