The differences between a winter weather advisory, watch, and warning

As we have started to see our first glimpse of winter weather these past few weeks, it’s important to refresh ourselves on what is considered severe winter weather. The National Weather Service issues different advisories, watches and warnings depending on the severity of the system. Each of these can mean something different for you and your family as you are preparing for the weather.

First of all, a winter storm is defined as 6″ of snow or more, 1/2′” of sleet or more, or a combination of the two. During a winter storm, conditions are hazardous to the public. During the least severe of winter storms, a winter weather advisory may be issued. This means that there may be significant incoviences, outside conditions may be hazardous, and that you should use caution. The winter weather watch is slightly more severe.

When the NWS issues a winter weather watch, we expect winter conditions to arrive within the next 36-48 hours. This gives you time to prepare for the winter weather headed your way. Now, the most severe is the winter storm warning. This is because winter weather is already happening or will begin within the next 24 hours. When this is issued you need to act immediately.

Along with winter weather advisories, watches, and warnings, the NWS issues specific advisories and watches for icy conditions.

The first is the freezing rain advisory. This is when ice accumulation is expected to be less than 1/4 of an inch. Don’t be fooled, even small amounts of ice can create dangerous conditions for roadways.

The ice storm warning is more severe. That’s when we expect 1/4 of an inch of ice or more. During an ice storm warning, roadways are very dangerous to travel on. Use extreme caution!