Understanding Winter Storm Warnings: A Guide to Staying Safe
With the winter season in full swing, it’s essential to understand the different types of winter weather warnings and what they mean for your safety. In this article, we’ll delve into the world of Winter Storm Warnings, exploring what they are, how they’re issued, and what you can do to stay safe during a winter storm.
Several inches of snow remain in Fairport Harbor, Ohio after a lake-effect snow swept through over the weekend and another snowstorm looms Thursday. FOX Weather Correspondent Brandy Campbell showed off her snow angel skills.
What is a Winter Storm Warning?
A Winter Storm Warning is issued by the National Weather Service (NWS) when a winter storm is expected to produce heavy snow, sleet, freezing rain, or a combination of these hazards that may cause significant impact. The primary goal of a Winter Storm Warning is to help keep residents safe during a winter storm. 
FILE – A snow plow clears a pathway from snow on February 9, 2025 in Boston, Massachusetts. (Photo by Scott Eisen/Getty Images)
(Getty Images)
Criteria for Issuing a Winter Storm Warning
The NWS has created a set list of criteria for when they issue a Winter Storm Warning. According to the NWS, a Winter Storm Warning indicates that conditions pose a threat to life or property. The warning suggests that there will be six inches of heavy snow in 12 hours or eight inches in 24 hours. In some cases, travel will become difficult or impossible, and it is recommended to delay travel plans until conditions improve. 
FILE – Cars are seen driving in the snow.
(Drew Angerer / Getty Images)
Changes to Winter Storm Warning Criteria
In 2023, the NWS revamped the criteria for Winter Storm Warnings across the country, along with creating a new map for winter storm watches and warnings across the U.S. Under the new criteria, all local NWS offices follow the threshold assigned to them by the main NWS office. For example, the amount of snow that triggers a Winter Storm Warning in the Northern Plains is much higher than the amount of snow that is needed to prompt a Winter Storm Warning in the Southeast. 
A man with a snow blower trying to keep up with the fast-falling snow in Flagstaff.
(FOX Weather)
Other Types of Winter Weather Warnings
Along with Winter Storm Warnings, the NWS has set standards for a Blizzard, Ice Storm, Wind Chill, and Lake-Effect Snow Warnings. Understanding these different types of warnings can help you stay safe during a winter storm. For more information on Winter Storm Warning criteria, visit Here
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