calm wind


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calm wind

The term means that wind speed is 5 knots or less. Generally, controllers use the term wind calm.
References in periodicals archive ?
It is expected that, during the next two days, the morning conditions will be suitable for the formation of fog due to that the relative humidity will maintain its high levels associated with drop in temperature and calm wind. But on Wednesday evening a northwesterly wind will prevail to gradually increase in speed on Thursday and Friday during daytime with drop in relative humidity.
The controller said it was unavailable because of calm wind and noise abatement.
Aerial search activity was significantly reduced under calm wind conditions in all years ([ILLUSTRATION FOR FIGURE 2 OMITTED], Table 1).
Under calm wind condition, when the mixing layer goes up during the day, AQI improves but when in the night, cooling drops mixing layer, AQI increases."
Talking to reporter, experts and environmentalists said that a combination of high level pollutants, calm wind and penetration of pollution from India was causing dense smog causing breathing
Calm wind becoming east around 5 mph in the morning.
They soothe the digestive system, help to calm wind and ease discomfort.
The 1915 recorded weather observation included calm wind and temperature of 81 deg.
Clear days with calm wind and seas are the easiest times to spot the whales, parks officials said.
In his words, "The low-wing aircraft was not using his radio which led to the event and was not following local procedure to use [the] calm wind Runway 15."