updraught
Upward air current
An updraught is an upward current of air, especially one strong enough to lift birds, gliders, or debris.
Thermal updraughts form when sun-heated ground warms the air above it.
The spelling is British; Americans write updraft.
Hawks circled lazily on the updraught.
Rising effortlessly upward
- thermalPertaining to warmth
- sailplaneEngineless soaring aircraft
- gliderUnpowered flying craft
- paraglidingFoot-launched canopy flight
hang-gliding · lift · aerodynamics · airfoil · altitude · ridge lift · circling · variometer
Pertaining to warmth
- convectionHeat transfer via motion
- buoyancyFluid's upward resistance
- liftMechanism for vertical transport
- air currentFlowing mass of atmosphere
instability · cumulus · convection cell · hot air · atmospheric · cumulonimbus · inversion · condensation
Mechanism for vertical transport
- turbulenceChaotic flow patterns
- wind shearRapid atmospheric velocity shift
- airflowMovement of atmosphere
- atmospheric conditionsState of the air
flight · climb · aeronautics · rotor · downdraft · gust · air pocket · pilot
Air current outdoors
- gustBrief wind surge
- stormSevere atmospheric disturbance
- cycloneRotating low-pressure storm system
- tornadoViolent rotating windstorm
vortex · thunderstorm · squall · tempest · supercell · mesocyclone · funnel · front
Chimney's inner passage
- fireplaceIndoor structure for burning
- smokeAirborne combustion byproduct
- drawCreate with pencil
- hearthFireplace floor area
stovepipe · damper · chimney stack · chimney pot · firebrick · combustion · exhaust · ventilation
soaring
Rising effortlessly upward
paragliding · hang-gliding · lift · aerodynamics · airfoil · altitude · ridge lift · circling · variometer · climb rate
thermal
Pertaining to warmth
- convectionHeat transfer via motion
- buoyancyFluid's upward resistance
- liftMechanism for vertical transport
air current · instability · cumulus · convection cell · hot air · atmospheric · cumulonimbus · inversion · condensation · cloud base
lift
Mechanism for vertical transport
- turbulenceChaotic flow patterns
- wind shearRapid atmospheric velocity shift
- airflowMovement of atmosphere
atmospheric conditions · flight · climb · aeronautics · rotor · downdraft · gust · air pocket · pilot
wind
Air current outdoors
tornado · vortex · thunderstorm · squall · tempest · supercell · mesocyclone · funnel · front · low pressure
flue
Chimney's inner passage
hearth · stovepipe · damper · chimney stack · chimney pot · firebrick · combustion · exhaust · ventilation · creosote
updraughtdowndraught
Descending column of air
downdraft · downwash · downburst · microburst · subsidence