Is it actually free?+
Yes. Every lesson, the video course and both certification exams cost nothing, and there is no paid tier waiting behind them. You need a free WxAlerts account to sit an exam and keep your progress.
Do I need experience or equipment?+
No. General starts at what a warning is and who makes it, and a phone is enough to begin. You do not need to chase storms either. Reporting what you can see from where you already are is the job.
How is this related to SKYWARN?+
The course is structured closely to the NWS SKYWARN spotter classes, so the order and the core material will be familiar if you have sat one. It is a WxAlerts program, though. WxAlerts is not affiliated with the National Weather Service, and a WxAlerts certificate is not an NWS SKYWARN credential.
What happens if I fail?+
You get three attempts at each exam, at least 24 hours apart. If all three miss, there is a 30-day wait, then three more attempts open automatically. Use the gap to rewatch the video or reread the part of the library the questions came from.
How do I keep my certification?+
Complete at least three continuing-education units in any rolling 12 months. Your certification stays current as long as you do.