UFS Weather Model Image of moving Nests

Implementation and testing of stochastic perturbations within a stand-alone regional (SAR) FV3 ensemble using the Common Community Physics Package (CCPP).

The Weather Program Office is working with the Cooperative Institute for Research in the Atmosphere (CIRA) at Colorado State University (CSU) and the National Center for Atmospheric Research (NCAR) to advance the forecast capabilities of the Rapid Refresh Forecast System (RRFS) through the testing and implementation of stochastic physics configurations.

Forecasters in room looking at weather radar on multiple monitors

The 2023 Spring Experiment

At the height of the spring severe weather season, the NOAA Hazardous Weather Testbed hosts multiple real-time, forecasting, and warning experiments to evaluate the operational utility of new science, technology, and products. NOAA NSSL, the NOAA National Weather Service Storm Prediction Center  and the NOAA NWS Norman Forecast Office lead the effort. The Spring Experiments are a unique opportunity…

woman with teal umbrella walking down a snowy street.

Advancing Probabilistic Prediction of High-Impact Winter Storms through Ensemble NWP and Post-Processing

The Weather Program Office is working with the University of Utah to improve snowstorm prediction capabilities for forecasts 48 hours to 7 days in advance using techniques and advanced ensemble numerical modeling. Researchers are developing and testing new snow-to-liquid-ratio (SLR) algorithms to improve snowfall forecasts derived from numerical modeling systems, and evaluating and improving methods…