The NOAA Hazardous Weather Testbed is once again busy buzzing with activity as researchers kick off the year’s first research activities. From March 12-16, participants will assess a new tool using rapid-updating, high-resolution Probabilistic Hazard Information, known as PHI. HS-PHI is testing an experimental concept for delivering information to the public in a way that simulates how National Weather Service forecasters would use it within their software.