@wstrong-0
I don’t know what kind of storm you mean. Let’s take a thunderstorm prediction. If your location is Atlanta, you can measure the distance between the thunderstorm and this location with the Distance & planning tool. Click the right button of your mouse on desktop or long press on screen of mobile device.
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In this example the distance is 319km. Moving the time slider you see that the storm will hit Atlanta 17 hours later. Easy to calculate the displacement speed