Puffy white clouds sailing across a blue sky indicate continuing fair weather. But if they mass together to form tall, anvil-shaped clouds, be prepared for a lightning-filled thunderstorm, even if the sun in shining brightly.
Striped frosty clouds high in the sky indicate the probability of light rain; dark, layered clouds overhead mean steady rain or snow. If you are ever lost at sea, look for the patches of stationary woolly clouds that usually form a little to the windward side of an island.
If your ever out on a clear night and the moon is shining, one way to know that bad weather is coming is to see a ring around the moon, rain or snow depending on the time of year will usually come within 3 days