outflow outflow air flows storm system associated flow low levels outflow thunderstorms form wedge rain cooled air visible thin rope like cloud weather satellite imagery fine line weather radar imagery low level outflow boundaries disrupt center small tropical cyclones outflow aloft essential strengthening tropical cyclone outflow tropical cyclone tropical cyclones proximity upper level outflow system west limit development system east thunderstorms thunderstorms outflow tends indicate development system large quantities outflow upper levels thunderstorm indicate development outflow lower levels thunderstorm choke low level lines typically bow bend convex outward leading edge low level outflow formation high pressure area forms rain area initial line high pressure area formed strong descending motion line come form edge outflow boundary detected radar especially clear air mode convergence occurs leading edge convergence dust bugs leading edge lead higher clear air signature insects swept prevailing winds making good presence outflow boundaries signature leading edge influenced density change cooler air warmer environmental air density boundary increase number echo returns leading edge clouds new thunderstorms develop outflow leading edge makes possible locate outflow boundary precipitation mode weather radar makes outflow boundaries visible satellite imagery thin line clouds known arc cloud image right depicts particularly strong boundary ahead line storms outflow boundary bow direction moving quickest tropical cyclones development significant convective complex send large outflow boundary weaken cyclone tropical cyclone center moves stable air mass leading edge thunderstorm outflow outflow boundary moderate vertical wind shear lead initial development convective complex surface low similar mid latitudes relax allow tropical cyclogenesis continue obvious motion clouds center tropical cyclones develop upper level high altitude outward flow clouds originate air released moisture expelled high altitude chimney storm engine outflow produces high thin clouds spiral away center clouds thin sun visible high clouds signs approaching tropical cyclone air parcels lifted eye storm reduced causing outflow tropical cyclone motion tropical cyclones proximity outflow system downstream normally west hinder development system upstream normally east local effects low level outflow boundaries thunderstorms cooler moist air mass thunderstorm originally formed wet rain forming wedge air spreads base parent thunderstorm wind speeds high events dust sand carried reducing visibility type weather event known common late spring upper level outflow consist thick clouds obscure sun reduce solar edge tropical cyclones
Outflow (meteorology)