A Winter Weather Advisory is issued when an accumulation of snow, sleet, or freezing rain is expected to occur. This can lead to inconvenience and even dangerous, life-threatening situations. Caution is advised, especially if going outdoors.
A Winter Storm Watch means there is the possibility of a blizzard, or heavy snow, sleet, or freezing rain. The weather service tries to issue a Watch from 12-48 hours before the storm begins.
A Winter Storm Warning means the blizzard, heavy snow, heavy sleet, or heavy freezing rain is occurring or is imminent. The weather service tries to issue a Warning 12-24 hours before the storm begins. A Warning is the most severe weather message.
Be prepared. Stay safe. Know the difference between an advisory, a watch, and a warning.