Cloud Cache Series - Altocumulus Mackerel Sky
In Iowa, United States
How Geocaching Works
Quick P & G located in rural Story County. Please BYOP and place container back as you found it.
This is part of our Cloud Cache Series (this cache was formerly called "100 Schnauzerland Hides").
A mackerel sky or buttermilk sky is an indicator of moisture (the cloud) and instability (the cirrus-cumulus form) at intermediate levels (2400–6100 m, 8000-20,000 ft). If the lower atmosphere is stable and no moist air moves in, the weather will most likely remain dry. However, moisture at lower levels combined with surface temperature instability can lead to rainshowers or thunderstorms should the rising moist air reach this layer. In the winter it is often said to precede snowstorms and flurries. Mackerel skies are spoken of in the popular bywords, "Mackerel in the sky, three days dry," "Mackerel sky, mackerel sky. Never long wet and never long dry," and the nautical weather rhyme, "Mare's tails and mackerel scales / Make tall ships carry low sails." The phrase 'mackerel sky' came from the fact that it looks similar to the markings of an adult king mackerel.
Thank you for caching in our fine county!
*Congratulations to biscuitt bunch on the FTF!*
pnzb'q cvyy obggyr
Altocumulus Mackerel Sky
Mackerel Sky over Edmonton, Alberta
Last Updated: on 4/22/2013 4:05:23 PM Pacific Daylight Time (11:05 PM GMT)
Coordinates are in the WGS84 datum