Fogger
When people think about weather and how it can threaten aviation I'm sure most people think lightning, rain, snow, excessive wind which all pose a great threat to aviation. However, I feel the most dangerous type of weather is the accumulation of dense fog. Although fog is only in the first couple km in the troposphere it makes a pilots VFR inop and must rely entirely on the instruments in the cockpit and whatever information that is given by ATC’s. This becomes a severe hazard for planes coming in for landing as you can barely see the runway markings along with not being able to visually see your altitude for landing. It also causes roughly 22-25% of the major United States Airline delays because of dense fog. Accompanying fog there can also be dew which in turn can cause blackice or freezing of aircraft flight controls (on the ground not in air). With dew there is more H20 in the air and if it begins to freeze alon...