National Weather Service United States Department of Commerce


The STI Modeling Program Team is responsible for supporting a variety of NWS modeling and research initiatives to improve weather forecasts. This is accomplished by funding research projects to accelerate and advance the development of new models, and foster collaboration among NOAA research scientists, federal labs, operational forecasters and the academic community. Examples of programs managed by this program division include efforts to improve guidance for hurricane track, intensity, and storm surge forecasts; develop an end-to-end air quality forecast capability; advance research to extend forecast skill beyond 8-10 days; and implement a weather-scale, fully-coupled numerical weather prediction system.

STI Modeling Staff Positions posted!

The application deadline is Monday August 19. The NWS Office of Science and Technology Integration (OSTI) Modeling Division is seeking to fill 2 federal program manager vacancies.

Current federal employees may apply here: Job Announcement # (MAP): NWS-OST-2019-0007


Non-federal applicants may apply here: Job Announcement # (DE): NWS-OST-2019-0008


Together with the OSTI Modeling Program Team, the managers will be engaged in a range of exciting and critical activities, with the ultimate goal of improving the NOAA NWS models and forecasts. This includes managing the development and implementation of advanced model capabilities needed for improved forecasting of weather, hurricanes, extended forecasts (beyond 8-10 days), air quality, severe weather and coastal inundation and flooding. Improving these systems requires advancing the science, infrastructure and computational skill of the modeling system. OSTI-Modeling collaborates with NOAA’s Oceanic and Atmospheric Research (OAR) Office, the research community and other modeling centers, to enhance the flow of information and innovation between operations and research, and to partner on improving model system components and infrastructure such as data assimilation, validation and verification.

NOAA Upgrades the U.S. Global Forecast Model

On June 12, 2019, NOAA's Global Forecast System (GFS) had a significant upgrade to include the new dynamical core. This upgrade will drive global numerical weather prediction into the future with improved forecasts.  Read more about the upgrade here.


Most recent STI Modeling Seminar

More Accuracy with less precision - assessing information content for reliable weather and climate prediction by Tim Palmer, (Royal Society Research Professor, University of Oxford)

Abstract: The reasons for stochastic parmeterisation are reviewed.  From this, we conclude that conventional 64-bit floating-point representations in NWP and climate models are, for the most part, unnecessary and energetically profligate.  It is argued that a new start is needed for the development of Earth-System Models, based on the primacy of information content.












Air QualityAir Quality



Weeks 3-4 / S2SWeeks 3-4 / S2S