February 25, 2013

Mackerel Sky

By Margaret Gillespie

Flickr Bill Hails
Have you heard the saying, “Mackerel sky, not 24 hours dry?” Predicting weather based on types of clouds can be a fun pastime. Mackerel sky is my favorite! Clouds in a mackerel sky are technically called cirrocumulus clouds. They are small, white, fluffy clouds made of ice crystals and are sometimes arranged in waves. Their similarity to the scales of a mackerel gives these clouds their name. Developing in advance of a depression with its accompanying rain or snow, mackerel sky literally gives us a “heads up” about incoming storms. Mackerel skies may clear quickly away but keep track of the next 24 hours to see if inclement weather moves in. Checking on clouds improves your posture. Have you ever tried looking at clouds while slumping? Good posture improves your breathing. Some clouds may predict rain but they just might start you on the road to better health!
Credit: SEFSC Pascagoula Laboratory; Collection of Brandi Noble, NOAA/NMFS/SEFSC.
Credit: SEFSC Pascagoula Laboratory; Collection of Brandi Noble, NOAA/NMFS/SEFSC.

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