Worldwide diversity in the NOAA Hazardous Weather Testbed Spring Experiments Posted in Photo of the Month on May 9, 2013 by Susan Cobb. Map of where visiting forecasters/researchers to the @NOAAHWT warning program have come from since 2007. Related Articles:Bite-sized science: NOAA Hazardous Weather Testbed2008 HWT EFP Spring Experiment forecast-scale activities2014 NOAA Hazardous Weather Testbed experiments kick off…NOAA Hazardous Weather Testbed Spring Experiments - 2011Share this: