Monday, 3 November 2014
Capitol Ballroom AB (Madison Concourse Hotel)
The 2014 Hazardous Weather Testbed (HWT) Probabilistic Hazard Information (PHI) experiment was held on 5-9 May, 19-23 May, and 2-6 June. This experiment focused on initial testing and evaluation of concepts to modernize the National Weather Service (NWS) watch/warning paradigm, as part of the Forecasting a Continuum of Environmental Threats (FACETs) vision. Testing of these concepts was performed by NWS forecasters using a newly-developed web-based interface for rapidly prototyping methods for creating PHI, along with forecaster-generated PHI grids for tornado, wind, hail, and lightning hazards simultaneously displayed in AWIPS2 (in addition to radar data).
This presentation will provide a summary of what was learned from the following testbed activities:
- Forecaster experimentation with creating, issuing, and updating probabilistic, feature-following objects (i.e., PHI threat objects) during real-time and displaced real-time severe weather events.
- A comparison of warnings issued using WarnGEN/AWIPS2 vs. PHI threat objects for two displaced-realtime severe hail events.
- Collaboration with the HWT Experimental Forecast Program (EFP) on short-term, regional probabilistic forecasts for individual hazards.
Each of these summaries will include situationally-dependent forecaster feedback that is being used to inform future prototype development.
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner