Red sky in the morning,

Sailors take warning.

Red sky at night,

Sailors delight

That old saying about reading silent weather signals came to mind during travels earlier in the week.  

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View of Charlotte skyline and Concourse D Gates from the CLT Amex Centurion Lounge on March 21, 2024 at 6:54 am.

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Sunrise at Cincinnati/Northern Kentucky International (CVG) on March 22, 2024 at 7:55 am.

According to various sources, including Scientific American and good old Wikipedia, the adage has considerable validity.  The red color is characteristic of a high-pressure air mass with stable air trapping particles, like dust, pollution and water vapor, which scatters the sun’s blue light.  Weather moves from west to east in the mid latitudes.  A high pressure system with a red sky moves east and will be followed by a low-pressure system (with a falling barometer indicative of bad weather) moving in from the west. 

In this case, the red sky on March 22 at Cincinnati 335 mi (539 km) northwest of Charlotte was an accurate predictor as Charlotte received about 0.5 in (1.27 cm) of rainfall on March 22 and 23, 2024.

Except for cropping and straightening, my cell phone photos are unedited.