City of Concord issued the following announcement on Mar. 7.
One of the most important things to know is the difference between a watch and a warning. A watch means severe weather is possible, a warning means it's actually happening. Knowing the difference could be lifesaving during a severe thunderstorm or tornado!
Learn more about the difference between a watch and a warning https://www.weather.gov/safety/thunderstorm-ww
Original source can be found here.
Source: City of Concord