Red sky at night, sailor’s delight…..

Gotta love Montana’s big sky!
Snapped this shot last week following dinner (a savory steak and a glass of vino)   : )

And yes, this sky is more “pink” but for all those who have wondered where the old adage came from, read on….

Weather systems typically move from west to east, and red clouds result when the sun shines on their undersides at either sunrise or sunset. At these two times of day, the sun’s light is passing at a very low angle through a great thickness of atmosphere, the result of which is the scattering out of most of the shorter wavelengths — the greens, blues, and violets — of the visible spectrum, and so sunlight is heavy at the red end of the spectrum.

Red sky at night, sailors delight.
When we see a red sky at night, this means that the setting sun is sending its light through a high concentration of dust particles. This usually indicates high pressure and stable air coming in from the west. Basically good weather will follow.

Red sky in morning, sailor’s warning.
A red sunrise reflects the dust particles of a system that has just passed from the west. This indicates that a storm system may be moving to the east. If the morning sky is a deep fiery red, it means a high water content in the atmosphere. So, rain is on its way.

Above content courtesy of: Fun Science Facts from the Library of Congress (http://www.loc.gov/rr/scitech/mysteries/weather-sailor.html)

Red sky at night, sailor’s delight…..

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