Sustained winds greater than or equal to 40 mph or gust greater than or equal to 58 mph.

A temperature scale based on absolute zero. Same as Kelvin temperature scale.

Operation mode of a communication circuit in which each end can simultaneously transmit and receive.

Facing away from the wind.

Root Mean Square. This notation is used frequently with error analysis. In that context, it is the square root of the arithmetic mean of the squares of the deviations of the individual calibration points from the theoretical or ideal response.

The difference between the true value of some quantity and its observed value. Every observation is subject to certain errors. Systematic errors affect the whole of a series of observations in nearly the same way. For example, the scale of an instrument m ...