Category
page 1Weather hazards to aircraft

fog
thumb|upright=1.35|Light fog in Bangladesh
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thunderstorm
upright=1.35|thumb|Lightning from a thunderstorm near Pritzerbe, Germany
wind shear
difference in wind speed or direction over a short distance

downburst
thumb|right|A downburst seen in Phoenix, Arizona.
325px|thumb|Illustration of a microburst at an airport. The air moves in a downward motion until it hits the surface. It then spreads outward in all directions. The wind regime in a microburst is opposite to that of a tornado.
whiteout
meterological phenomena
clear-air turbulence
turbulence without visual cues
microburst
REDIRECT Downburst
icing conditions
in aviation; atmospheric conditions that can lead to the formation of water ice on various surfaces
air-mass thunderstorm
thunderstorm that is generally weak and usually not severe.
wind gradient
vertical component of the spatial gradient of the mean horizontal wind speed