From Wikipedia, the free encyclopedia

Wikimedia Commons logo This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Commons is attempting to create a freely licensed media file repository. You can help.
Featured picture star This used to be a featured picture, but it was found by community consensus to be not up to the current standards anymore. If you have an image of higher quality, be sure to upload it, using the proper free license tag, then add it to a relevant article and nominate it.

Wikipedia logo This image was selected as picture of the day for August 11, 2004, and July 12, 2005.

A mackerel sky over Edmonton, Alberta is an indicator of moisture (the cloud) and instability (the cumulus form) at high levels. 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 temperature instability can lead to spectacular thunderstorms should the rising moist air reach this layer.

Source: english wikipedia (original upload 11 May 2004 by en:User:Denni, self made)

Creative Commons License
Creative Commons Attribution iconCreative Commons Share Alike icon
This file is licensed under the Creative Commons Attribution ShareAlike 2.5 License. In short: you are free to share and make derivative works of the file under the conditions that you appropriately attribute it, and that you distribute it only under a license identical to this one. Official license

Ø2005 D.Windrim (124809 bytes) (mackerel sky large format)

The following pages on the English Wikipedia link to this file (pages on other projects are not listed):
  • Cloud
  • Weather lore
  • User:Dwindrim/images
  • Template:Pic of the day/Archive1
  • Wikipedia:Featured picture candidates/June-2004
  • Wikipedia:Picture of the day/December 2004
  • Wikipedia:Picture of the day/December 22, 2004
  • Wikipedia:POTD/December 22, 2004
  • Wikipedia:Picture of the day/August 2004
  • Wikipedia:Picture of the day/July 2005
  • Wikipedia:Picture of the day/July 12, 2005
  • Wikipedia:POTD/July 12, 2005
  • Wikipedia:Featured picture candidates/Mackerelsky
  • Wikipedia:Featured picture candidates/August-2005
  • Altocumulus mackerel sky
  • User:Cyde/Featured pictures
  • Portal:Weather/Selected picture/Mackerel sky over Edmonton, Alberta
  • User:Chrisbayley
  • User:Jfingers88/Pictures
  • Wikipedia:Featured picture candidates/archived removal requests 2
  • Wikipedia:Featured picture candidates/delist/Mackerel sky over Edmonton, Alberta