Editing Cloud physics (section)

=====Frontal and cyclonic lift=====
{{see also|Extratropical cyclone|Warm front|Cold front|Precipitation}}

Frontal and [[cyclonic]] lift occur in their purest manifestations when [[Atmospheric instability|stable]] air, which has been subjected to little or no surface heating, is forced aloft at [[weather fronts]] and around centers of [[low-pressure area|low pressure]].<ref name="frontal clouds">{{cite web|url=http://ww2010.atmos.uiuc.edu/%28Gh%29/guides/mtr/cld/dvlp/frnt.rxml/~wintelsw/MET1010LOL/chapter06/|title=Lifting Along Frontal Boundaries|author=Elementary Meteorology Online|year=2013|publisher=Department of Atmospheric Sciences (DAS) at the [[University of Illinois at Urbana–Champaign]]|access-date=February 5, 2018}}</ref> [[Warm front]]s associated with extratropical cyclones tend to generate mostly cirriform and stratiform clouds over a wide area unless the approaching warm airmass is unstable, in which case cumulus congestus or cumulonimbus clouds will usually be embedded in the main precipitating cloud layer.<ref name="Mackerel sky">{{cite web|url=http://www.weatheronline.co.uk/reports/wxfacts/Sometimes-a-bit-fishy.htm|title=Mackerel sky|publisher=Weather Online|access-date=21 November 2013}}</ref> [[Cold front]]s are usually faster moving and generate a narrower line of clouds which are mostly stratocumuliform, cumuliform, or cumulonimbiform depending on the stability of the warm air mass just ahead of the front.<ref name="G&N:207-212">{{cite book|title=A World of Weather: Fundamentals of Meteorology: A Text / Laboratory Manual|year=2001|publisher=Kendall/Hunt Publishing Company|isbn=978-0-7872-7716-1|oclc=51160155|url=https://books.google.com/books?id=oh8lqM5obuYC&pg=PA212|author1=Lee M. Grenci |author2=Jon M. Nese |edition=3|pages=207–212}}</ref>