Editing Funnel cloud (section)

==Other funnel clouds==
[[File:Small Shear Funnel in Carlyss Louisiana.jpg|thumb|Small shear funnel in Carlyss, Louisiana]]
Other funnel clouds include shear or "high based" funnels, which are ephemeral, small, and weak funnels associated with small cumulus clouds, often even those rooted aloft above the [[atmospheric boundary layer|boundary]] or surface layer, and in "fair weather" conditions.<ref name="high-based">{{cite journal |last = Bluestein |first = Howard B. |title = High-Based Funnel Clouds in the Southern Plains |journal = Monthly Weather Review|volume = 122  |issue = 11 |pages = 2631–2638 |date = 1994 |doi = 10.1175/1520-0493(1994)122<2631:hbfcit>2.0.co;2 |bibcode = 1994MWRv..122.2631B |doi-access = free }}</ref> Small funnel clouds, such as some occurring within vicinity of mountains, occur by unknown processes.<ref name="small funnels">{{cite journal  |last = Bluestein |first = Howard B. |title = More Observations of Small Funnel Clouds and Other Tubular Clouds |journal = Monthly Weather Review|volume = 133 |issue = 12 |pages = 3714–3720 |date = 2005 |doi = 10.1175/MWR3080.1 |bibcode = 2005MWRv..133.3714B |doi-access = free }}</ref>

Shear funnels might also occur with weak transient circulations at the cloud base of thunderstorms. Mesoanticyclones, which accompany [[mesocyclone]]s, often exhibit these funnel clouds. Brief funnels also are observed with some [[rear flank downdraft]]s (RFDs) (within [[inflow (meteorology)|inflow]] or [[outflow (meteorology)|outflow]] areas, and especially within inflow-outflow interchange areas as RFDs interact with mesocyclones or flanking line updrafts) and streamwise vorticity currents (SVCs) feeding into mesocyclones.

Although not considered a separate kind of funnel cloud, some funnel clouds form with [[mesovortices]] associated with [[squall line]]s, which also can become tornadoes but are often not visible as funnel clouds or tornadoes because they usually occur within obscuring precipitation. Other "fair weather" funnel clouds include [[horseshoe cloud]]s which are a very transient phenomena associated with extremely weak [[Horseshoe vortex|vortices]].