Hi Jeff,
Unfortunately, I don't have Meteobridge configured to use a webcam, so I don't have any guidance for you about that...
My webcam setup uses some ancient software (ImageSalsa V2) and a XAMPP service + custom PHP script to offer my 'real-time' image, and that setup is neither simple, nor portable.
Maybe others could chime in who have configured Meteobridge to use a webcam .. I suggest you start a new topic with that question in the Meteobridge board on this forum.
Best regards,
Ken