The days are getting longer but it's a funny time of year weatherwise with unpredictable wind chills.

They said all windows must be sealed because of noise pollution and unpredictable wind pressures and temperatures, relying on ducted ventilation.

With moving air as an additional factor, unpredictable winds can add an equally unpredictable horizontal velocity to a descending spacecraft.

The planes run into unpredictable winds, fine dust storms and extreme changes in temperature.

Furthermore, the lack of a roof can result in relatively strong and unpredictable winds inside the stadium.