| Term | Definition |
|---|---|
| Winter Storm Watch | Conditions are favorable for a winter storm event (Snow, Sleet, or Ice (Freezing Rain), or a combination of events) to meet or exceed Winter Storm Warning, Ice Storm Warning or Blizzard Warning Criteria in the next 12 to 48 hours. |
| Winter Storm Warning | Any of the following: Snow and/or sleet: At least 2" in 12 hours and/or 3” in 24 hours Ice (freezing rain): accretion of at least 1/4 inch within 24 hours or less Combination of winter weather is expected to pose a threat to life and property. |
| Ice Storm Warning | Freezing rain is the only predominant type of wintry precipitation and is expected to accumulate to ¼ inch or greater during a period of 24 hours or less. |
| Winter Weather Advisory | Any of the following: Snow and/or sleet: 1 to 2" in 12 hours Ice (freezing rain): accretion of a trace up to a 1/4 inch in 24 hours or less Combination of winter weather is expected to cause “significant inconvenience” and warrant extra caution. |
| Blizzard Warning | Sustained winds or frequent gusts of at least 35 mph accompanied by falling and/or blowing snow frequently reducing visibility to < 1/4 mile for 3 or more hours. |