Wind Chill Advisory: Dangerous wind chills of 15 to 24 below zero. Wind Chill Warning: Life-threatening wind chills of 25 to 30 below zero or colder. Wind chill temperatures may reach or exceed -25 degrees. Wind Chill Watch: Conditions are favorable for wind chill temperatures to meet or exceed local wind chill warning criteria in the next 24 to 72 hours. Widespread or localized lake induced snow squalls or heavy snow showers which produce snowfall accumulation to seven or more inches in 12 hours or less. Lake Effect Snow Warning: A lake effect snow event is expected to meet or exceed local lake effect snow warning criteria in the next 12 to 36 hours. Lake Effect Snow Watch: Conditions are favorable for a lake effect snow event to meet or exceed local lake effect snow warning criteria in the next 24 to 72 hours. Sustained wind or frequent gusts greater than or equal to 35 mph will accompany falling and/or blowing snow to frequently reduce visibility to less than ¼ mile for three or more hours.īlizzard Warning: Strong winds of 35 mph or greater will combine to produce blinding snow, near zero visibility, deep drifts, and life threatening conditions, especially for those attempting travel. Ice Storm Warning: Heavy accumulations of ice will create extremely dangerous travel, damage tress and likely cause extended power outages.īlizzard Watch: Conditions are favorable for a blizzard event in the next 24 to 72 hours. Winter Storm Warning: Indicates heavy snow (greater than 6”), heavy sleet (1/2” +), or a combination of winter weather hazards are highly likely or occurring. Winter Storm Watch: Indicates severe winter weather, such as heavy snow or ice, is possible within the next day or two. An advisory is for less serious conditions that cause significant inconvenience and, if caution is not exercised, could lead to situation that may threaten life and/or property. A warning is used for conditions posing a threat to life or property.Īdvisory: An advisory is issued when a hazardous winter weather event is occurring, is imminent, or has a very high probability of occurrence. Warning: A warning is issued when a hazardous winter weather event is occurring, is imminent, or has a very high probability of occurrence. It is intended to provide enough lead time so those who need to set their plans in motion can do so. Watch: A watch is generally issued in the 24 to 72 hour forecast time frame when the risk of a hazardous winter weather event has increased. The National Weather Service uses these terms below to convey a weather threat to the public: The definitions of watches and warnings can easily get jumbled, so keep this guide handy when a storm approaches your neighborhood. The last thing anyone wants to be is confused when severe weather strikes.
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