In Trinidad and Tobago the older folks say, when the sky looks as it does in these photographs, there are lots of fishes in the sea.
Fishermen would go out and bring in their nets full and even though their catch was plentiful, just because it was heading into the Easter period, the price of fish would be very expensive. Some fisher-folk still rely on the mapping of the moon and clouds to know know when is the best time to fish.