NSSL/CIMMS scientist to brief NWS forecasters Posted in Partnerships, R2O on March 30, 2015 by Susan Cobb. Permalink Kristin Calhoun (NSSL/CIMMS) will give an invited webinar to National Weather Service meteorologists and hydrologists on April 1, 2015, about current lightning prediction products in research and development at NSSL. Read more→