Skywarn isn't as big up here as in places like the Midwest. Net's are rare. Much of the information is passed to Gray Weather by phone. However, Amateur Radio Emergency Service is where Net's are conducted. Each area has designated primary and secondary repeaters.
Check out http://ares.arrlnh.org/ for ARES info.
Currently, on an informal level (for now), Gray Weather has buegun monitoring 53.77Mhz (PL-100.0) which is a new wide area repeater located on Gunstock Mountain in Gilford.
Gray Wx has a decent Amateur Radio setup in the office and monitors a lot of the frequencies in affected areas.
Please correct me if I'm wrong but isn't Skywatch in the catagory of SAME. I mean if there was any storm activity in the area this would be sent out on a tone for that county and would activate that channel your on with a warning tone wouldn't it? Or am I not in the park?
Anyhow if I am correct in this theory only then you can fine the SAME information at the National weather Bureau.
Try here and pick NH.