A rainfall warning has been issued for the Grande Prairie – Beaverlodge – Valleyview region. Environment Canada says the area is expecting rain, that will be heavy at times.
A low pressure system is forecast to develop over central Alberta tonight, which will create heavy showers to spread over the Whitecourt and southern Grande Prairie regions. Most areas should get 50 to 60 millimetres of rain by late Friday, but with thunderstorms, some could get more than 80 millimetres.
In the city of Grande Prairie, rain is expected to start around midnight with a risk of a thunderstorm. 5 to 10 millimetres is in the forecast overnight, except that should be 20 millimetres in southern parts. There’s another risk of a thunderstorm for Friday with another 30 to 40 millimetres of rain possible.
Residents are warned to watch out for flash floods and water pooling on roads, along with possible flooding in low lying areas. Washouts near rivers, creeks and culverts are also possible.