downdraft
Air moving downward
A downdraft is a downward current of air, especially one occurring during a thunderstorm when cool air rapidly descends.
Downdrafts can cause dangerous wind shear for aircraft.
In brewing, a downdraft system pulls fumes downward away from the brewer.
Figuratively, a downdraft describes a decline: The stock market hit a downdraft in early trading.
Localized descending air blast
- thunderstormViolent weather with lightning
- stormSevere atmospheric disturbance
- convectionHeat transfer via motion
- precipitationAtmospheric water deposit
hail · cold front · atmospheric · barometric · squall · gust · outflow · cloud base
Localized descending air blast
- wind shearRapid atmospheric velocity shift
- turbulenceChaotic flow patterns
- descentDownward slope or lineage
- altitudeMeasured height above reference
aircraft · landing · thunderstorm · convection · storm cell · piloting · air pocket · flight
Vertical smoke passage
- flueChimney's inner passage
- fireplaceIndoor structure for burning
- exhaustUse up entirely
- backdraftExplosive fire reignition
smoke · airflow · depressurization · damper · combustion · furnace · woodstove · carbon monoxide
microburst
Localized descending air blast
- thunderstormViolent weather with lightning
- stormSevere atmospheric disturbance
- convectionHeat transfer via motion
precipitation · hail · cold front · atmospheric · barometric · squall · gust · outflow · cloud base · meteorology
microburst
Localized descending air blast
- wind shearRapid atmospheric velocity shift
- turbulenceChaotic flow patterns
- descentDownward slope or lineage
altitude · aircraft · landing · thunderstorm · convection · storm cell · piloting · air pocket · flight · headwind
chimney
Vertical smoke passage
backdraft · smoke · airflow · depressurization · damper · combustion · furnace · woodstove · carbon monoxide · venting
fermentation
Microbial sugar conversion
airlock · homebrew · wort · lager · ale · CO2 · off-gassing · fermenter · mash · carbonation
- convectionconvection, convection current, convection currents, convection cell, natural convection
- wind forceswind pressure, wind load, wind speed, gusts, crosswind
- weatherweather, rain, sun, snow, wind
- weather phenomenatornado, wind, hurricane, gust, blizzard
- meteorologyweather, rain, wind, snow, clouds
- windbreeze, wind, gale, gust, gusts