It’s likely there are no current weather events having to do with the Assets that are available to you at that moment. Many Widgets, such as, Lightning Timer will only display information if there is an active lightning event that meets the Alert criteria that was set.
Widgets
Why did my dashboard load slowly?
Large dashboards with many data-dense widgets and long time windows can increase load times. Consider fewer concurrent widgets, shorter ranges, or lighter layers.
How do I Add, Remove or Rearrange Widgets?
Click the Edit button at the top navigation bar for your Dashboard. Once you select the Edit button, you can choose “Add Widget” to add a new one, drag and drop to reposition the Widgets on your dashboard, or remove ones you don’t need. By clicking “Save” these changes will be set immediately.
What is a Widget?
A widget is an application designed to provide specific piece of information. They are created to help a software user easily add this information to their dashboard.