The Saint John Fire Department warning you to watch out for one of the dangers spring-like temperatures bring.
Division Chief Mark Wilson says frozen rivers and lakes start opening up in the middle during this time of year and may be unsafe. Wilson says you can tell how strong the ice is by looking at the colour. While clear-blue is the strongest type of ice, opaque white is about half that strength and grey ice is the weakest and is very dangerous.
Meantime, River Watch warning those of you who live along streams, rivers and other bodies of water to be on the lookout for moving ice and ice-jams as they could cause flooding.