Besides the regular stresses of organizing an event, setting up an outdoor event involves the cooperation of the natural world. While rain can ruin an outdoor happening, wind can merely complicate it. Setting up a microphone in strong winds can tie up hours of your time figuring out how to reduce the wind noise coming through the speakers. Here are a few ways to address the problem.
Reposition the microphone and its stand where the wind is less powerful.
Check to see if the wind is coming through a vent or other passageway that can be closed.
Purchase a windscreen, a semitransparent, synthetic container into which the microphone can be set. These screens are often used by audio professionals who find themselves in windy settings.
Try covering the microphone on a digital camera or other electronic device with some kind of fabric. This will let the sound carry through while blocking the wind, although the sound might be muffled.