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Meteorology and Weather
Rain and Flooding

Is red sky in the morning sailors take warning red sky at night sailors delight is based on a myth or a fact?


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September 12, 2010 10:27PM

Both, but more on fact. Since the sun comes up in the east, a red sky in the morning often means there is adverse weather developing, whereas if there's red sky at dusk, then the inclement weather has passed and there will be a nice day the following day.


It's a simplification based on the fact that most weather systems move from west to east. It's not a "fact", but it is based on probable events in the next 12 to 24 hours.