Storm moves out of Philadelphia region; much colder Tuesday

6abc Digital Staff Image
Last updated: Tuesday, March 17, 2026 5:49AM GMT
Live StormTracker 6 and Sky 6

PHILADELPHIA (WPVI) -- The threat of severe weather has moved out of the Philadelphia region.

There were Tornado Warnings issued in Kent County, Delaware, and parts of New Jersey, late Monday, but all warnings have since expired.

Temperatures quickly tumble overnight as cold air takes over. A wind advisory is posted for the entire region until 2 a.m. Tuesday.

Click here for the latest AccuWeather forecast.

Mar 16, 2026, 7:08 PM GMT

Tornado watch vs warning: What to do when you see alert messages

Tornado watches and tornado warnings have different purposes, and you should react to each differently, AccuWeather explains.

A tornado watch is typically issued hours in advance by NOAA's Storm Prediction Center (SPC). It means that conditions are ideal for a tornado to form. A watch will not necessarily result in severe weather, AccuWeather explains.

"A watch is issued when conditions are favorable, for example, either for a severe thunderstorm or tornadoes," AccuWeather.com Senior Meteorologist Dan Kottlowski said. "It doesn't mean severe weather is imminent."

Tornado watches and tornado warnings have different purposes, and you should react to each differently, AccuWeather explains.

If there is a watch in your area, you should keep an eye on weather alerts and be prepared to act. Make sure you know ahead of time what to do if a tornado hits.

While a watch covers a broad region, a warning is issued by a local National Weather Service meteorologist for a smaller area.

A warning means that either a tornado has been spotted or a radar has picked one up.

If you are in an area with a tornado warning, it's time to act immediately. Get to a safe space such as a storm shelter. If you don't have one, the best option is usually in the basement or the middle of a building, away from windows, preferably in an area with reinforced walls.

On rare occasions during significant events such as a tornado outbreak near a heavily populated area, a tornado emergency might be issued. The difference between a warning and an emergency has to do with how widespread the damage could be.

Just as with a tornado warning, those in the path of a tornado emergency should seek shelter and wait for authorities to say when it's safe to come back out.

WPVI logo
Mar 16, 2026, 4:48 PM GMT

Schools dismissing early due to storm threat | Full list

Several schools across the region have dismissed early and canceled afternoon activities due to the storm.

Check the full list here.