WINTER STORM WATCH - A WINTER STORM WATCH IS ISSUED TO INFORM THE PUBLIC OF THE POSSIBILITY OF ONE OR A COMBINATION OF THE ANY OF THE FOLLOWING EVENTS: BLIZZARD CONDITIONS, HEAVY SNOW, OR SIGNIFICANT AND DAMAGING ACCUMULATIONS OF FREEZING RAIN OR SLEET. A WATCH USUALLY GIVES 12 TO 36 HOURS ADVANCE NOTICE OF THE ONSET OF WINTER WEATHER.