The stem-up side will then receive more sun to provide some melting and drying to lessen spoilage. If more than one line of bales is needed, space adjacent lines at least 10 ft. apart. This will minimize snow buildup between rows and allow the sun to reach the back row. Stacking large round bales usually increases losses. Stacking tends to trap moisture and limits drying action from exposure to the sun and wind.
Locate bale rows away from fences and tree lines to avoid contact with snow drifts.
Keep livestock and other animals away from bales. Prevent weed growth around bales. Weeds shade the bales and can cause snow drifts. Remember that the outer four inch thick layer of a 6 ft. diameter round bale contains about 25 percent of the total bale volume. Studies have shown outdoor storage losses range between five and 35 percent depending on the amount of precipitation, storage site location, and original condition of the bale.