Hi there! I understand you're seeing a blank screen when trying to access Mike's Weather Page app website on your Mac running OS X 10.15.7. To get started, can you tell me if this blank screen happens immediately when you open the site or app? Also, have you tried accessing the site on other browsers or devices to see if the issue persists? This info will help me narrow down the cause.

Meanwhile, I can guide you through some straightforward steps to troubleshoot this:

1. Clear Browser Cache: Sometimes old cached files cause issues loading websites properly. On your Mac, in Safari or whichever browser you use:
- Go to the browser’s menu > Preferences > Privacy
- Click on “Manage Website Data” and remove data related to Mike’s Weather Page or clear all cache.

2. Try a Different Browser: If you usually use Safari, try Chrome or Firefox to see if the blank screen still appears. This helps check if it’s browser-specific.

3. Disable Browser Extensions: Some extensions can interfere with site loading. Temporarily disable all extensions and reload the page.

4. Check for Network Issues: Restart your router or switch networks if possible just to rule out any internet hiccups.

5. Update your Browser and OS: Since you’re on OS X 10.15.7, ensure your browser is updated to the latest version compatible with your system.

Additionally, there has been a recent report of Mike’s Weather Page experiencing a high traffic influx which caused the website to temporarily crash and show blank screens3. Mike’s team was already working to bring it back online, so this may be related.

Let me know what you observe after these steps or if you want help with any specific step! Are you satisfied with this initial guidance so far?