This article will go over how to send an alert with Geo-Location Alerting (geofencing). Add recipients to the alert form from a mapping tool.
Instructions
Open the Send Alert Form

Under the Recipients section, select Map Selections and click Add New Area

Select the Drawing Tools icon

Select a drawing feature to create a map

Select the Panels icon to view residents in the area

Review the people in the area who will receive the alert

Click Save to save the map for future use

Enter a Map Name and click Save

Click Submit to add the map to your Alert Form

Click Send

Select the check box options on the form to send the alert to those users

Click Edit to edit the selected map or Remove to clear out the map
