NWS SKYWARN - Volunteer programme of trained weather spotters that help keep their local communities safe by providing timely and accurate reports of severe weather to the National Weather Service.
SKYWARN National Homepage - National headquarters for a collection of volunteer weather spotting groups around the country working in conjunction with National Weather Service Forecast Offices.
Weather Amateur Radio Network (WARN) - Cincinnati, Ohio, chapter of the nationwide organisation, Skywarn, WARN collects and relays severe weather reports from Cincinnati area HAMs to the National Weather Service.