Mobile App 

1. Along the bottom bar, select Maps tab, indicated with a "location icon"
   
2. Tap a Location
   
3. Select Maps
4. Find a Weather Event
5. Click the Heart to add to Favorites

Desktop App

1. Along the left-hand bar, select Maps tab, indicated with a "location icon"
2. Click a Location
3. Find a Weather Event
4. Click the Heart to add to Favorites
   

Read how to find a list of Favorite Weather Events