How to use tonight's forecast in Chatham-Kent
The current aurora chance for Chatham-Kent is None. That rating is useful, but it works best when you combine it with darkness, weather, and the fact that some cities simply need stronger geomagnetic activity than others.
What the current chance means
A none or near-none chance in Chatham-Kent usually means tonight is not a strong aurora setup for this location. It is still useful context, because you can compare later updates or look at cities farther north for better odds.
Latitude and realism
Chatham-Kent is far enough south that strong geomagnetic storms are usually needed before the northern lights become a realistic target. A promising forecast here is worth noticing, but weak or borderline setups often do not travel far enough south.
Darkness and local conditions
Chatham-Kent is smaller than the biggest metro areas, but darkness still matters. Even when forecast activity is decent, clearer and darker skies outside the brightest built-up areas will usually improve your odds.