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 NWS says wind chill is for temperatures at or below 50 degrees and wind speeds above 3 mph.The last thing anyone wants to be is confused when severe weather strikes. Left untreated, it can lead to the failure of the heart and respiratory system and, eventually, death. Hypothermia occurs when your body loses heat faster than it can produce it, the Mayo Clinic says. It’s most common on the fingers, toes, nose, ears, cheeks and chin, according to the Mayo Clinic. Wind chill can lead to frostbite, hypothermia and, ultimately, death.įrostbite is caused by freezing of the skin and underlying tissues. The only effect wind chill has on inanimate objects – such as cars or water pipes – is that it shortens the amount of time it takes for the object to cool. Wind chill only applies to people and animals, the NWS says. “When the winds are stronger, it can whip the heat away from your body quicker.” “The critical thing is how long you can expose your skin before freezing,” said Tom Sater, CNN meteorologist. Joe Ahlquist/Argus Leader/apĬold casualty: What to know about hypothermia Bill Taylor walks from the YMCA to his office on Monday in Sioux Falls, South Dakota.

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