A question, a correction, an idea? Send it. The most useful thing you can send is a wait that did not match the forecast: roughly when you arrived, which direction, and how long it took. Every one of those makes the next forecast better.
If you left an email address you will hear back. Back to the forecast.
No account, no tracking beyond what the terms describe: the message is kept with the same technical information as a visit (address, approximate location, device), until deleted, so the owner can reply.