Windy and cold conditions are forecasted for the next few nights. The temperature is expected to drop just below freezing, indicating the possibility of an advection frost. If temperatures stay above 28F, damage should be minimal. Never-the-less, windy conditions will remove heat from the orchard, reducing the effectiveness of frost prevention measures.
Basically, application of water via irrigation will increase the heat within the orchard, reducing frost damage. Temperatures will dip to their lowest just before dawn, but irrigation should occur before this time in order to increase heat within the orchard canopy.