Hi there! I see your Weather Channel app radar isn't updating on your Mac running OS X 10.15.7. Let's get to the bottom of this together.

First, could you tell me if you are using the Weather Channel website through your browser or a Weather Channel app on your Mac? Also, have you noticed whether the radar was updating previously and just recently stopped, or has it not been updating since you started using it?

While you share that, here are some initial steps you can try that usually help with radar update issues:

1. Refresh the Page or App: If using the website, try refreshing the browser tab (Command + R). If it's an app, try quitting it completely and reopening.

2. Check Internet Connection: Make sure your Mac is connected to the internet correctly and that the connection is stable as radar data requires live internet.

3. Browser Cache Clear (for website users): Sometimes, outdated or corrupted cache data prevents radar updates. Here's how to clear cache in Safari on your OS X version:
- Open Safari
- Click Safari > Preferences > Privacy > Manage Website Data
- Remove data related to weather.com or clear all website data if you prefer.
- Restart Safari and revisit the radar page.

4. Opacity & Layer Settings: On the radar interface, check under “All Layers” settings to ensure opacity isn’t set to zero or any layers aren’t hidden causing the radar to appear as not updating.

5. Update the App (for app users): If you are using the Weather Channel app for Mac and there's an updated version available in the App Store, updating can fix bugs causing the radar not to refresh.

If you've already tried any of these or if the radar still doesn't update after these attempts, let me know. We can dive deeper, like checking for current outages or performing more advanced steps.

Are you comfortable trying these so far? And just to confirm, are you accessing via browser or an app?

I’m here to help!