I was looking for a decent radar map for Canada that had a specific region rather than the whole continent/country and updated a photo instead of generating new timestamped photos (imgname_01_27_13_30.gif) to work with weather report. I searched for quite a while before realizing that CBC was probably the best place to find them. And it was.

Go to CBC.ca. It should find your location and have the current weather in the top left corner. You can click your town name to bring up the forecast.

Near the bottom will be the radar map. Use the most recent satellite image's link location by stopping the feed and right click the image. Select Copy Image Location, and paste the URL into the custom address box of the weather report preferences.