The NOAA Hazardous Weather Testbed's Experimental Warning Program

The NOAA Hazardous Weather Testbed's (HWT) Experimental Warning Program (EWP) provides a mechanism that brings together forecasters and researchers to devise and test new science, technologies and applications to improve short-term (0-2 hour) warnings and nowcasts of severe convective weather threats. The National Severe Storms Laboratory (NSSL) has a long history of collaboration with National Weather Service (NWS) forecasters during the development of new warning-scale tools, such as the WSR-88D radar network, polarimetric radar, and warning decision-making guidance applications.

Dozens of forecasters and researchers participate in EWP experiments each year. Recent activities include the evaluation of new remote sensing tools, including phased array radar, "gap-filling" 3 cm radars, and GOES-R algorithm. In addition, new science applications and techniques, such as multi-radar/multi-sensor algorithms, Probabilistic Hazard Information, and "Warn-on-Forecast" real-time storm-scale model assimilation fields, have been examined.

The presentation the EWP activities during recent experiments and opportunities for future collaboration between researchers and forecasters across the Unites States.