Why a city page beats typing a city name
The search box on the main calculator resolves almost any North American place name, and it will keep doing so. What it cannot give you is context. A city page loads the forecast for verified coordinates, then explains what usually drives a closure in that specific place: which lake matters, which direction the wind has to come from, whether the local answer is normally a closure or a cancelled bus route, and which organisations actually make the call.
That context is the difference between reading a number and understanding it. A 40% reading in Minneapolis and a 40% reading in Cincinnati are not the same situation, and neither city page pretends otherwise.
How the directory is organised
The hierarchy runs from country to state or province to city. Canada has its own country landing page because school closure practice there differs substantially from the United States. Each state and province hub explains the regional pattern and links to the cities inside it, and each city page links back to its parent and across to its neighbours.
What happens when a location is not listed
Nothing breaks. Enter the place name or postal code in the calculator and it resolves through the weather provider's geocoding service, returning the same six-factor result. Pages are added where there is genuine local context worth publishing, not to inflate a page count, so a location without a page is simply one where the honest answer is “use the search box”.
Before relying on any result, read how the calculation works and the accuracy and limitations statement.