Editing Weather map (section)

=== Aviation maps ===

[[Aviation]] interests have their own set of weather maps. One type of map shows where VFR (visual flight rules) are in effect and where IFR (instrument flight rules) are in effect. Weather depiction plots show [[flight ceiling|ceiling]] height (level where at least half the sky is covered with clouds) in hundreds of feet, present weather, and cloud cover.<ref>{{cite web|author=Unisys Corporation|year=2009|url=http://weather.unisys.com/surface/details.html#rule|title=Surface Data Details|access-date=2010-02-07}}</ref> Icing maps depict areas where icing can be a hazard for flying. Aviation-related maps also show areas of turbulence.<ref>{{cite web|author=Jeppesen|url=http://www.jeppesen.com/wlcs/html/wx_hazmap.html |title=Weather Help|access-date=2010-02-07|date=2008-05-06 |archive-url = https://web.archive.org/web/20080607110837/http://www.jeppesen.com/wlcs/html/wx_hazmap.html |archive-date = 2008-06-07}}</ref>