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Home » HRRR


Short-range weather modeling application released to forecasting community

NOAA and partners have released the source code for its next-generation short-range forecast application to the weather research community to accelerate development of the model, which predicts atmospheric behavior on a timescale from less than an hour to several days, including critical life-saving weather and water forecasts during extreme events.


NOAA Research’s top 5 stories from 2020

From predicting smoke movement from massive wildfires, to investigating how marine life is responding to a quieter ocean, 2020 was a big year for NOAA science. As this unprecedented year draws to a close, we’re looking back at some of our biggest research endeavors in 2020. Here are 5 of our most-read stories from the last year.

Bulletin of the AMS: Improving Wind Energy Forecasting through Numerical Weather Prediction Model Development

Researchers leveraged a multi-scale dataset of observations from the second Wind Forecast Improvement Project field campaign in the northwest U.S. to diagnose and quantify systematic forecast errors in the operational High-Resolution Rapid Refresh (HRRR) model during weather events of particular concern to wind energy forecasting. Examples of such events are cold pools, gap flows, thermal troughs/marine pushes, mountain waves, and topographic wakes. This study describes the model development and testing undertaken during WFIP2, and demonstrates forecast improvements. Specifically, WFIP2 found that mean absolute errors in rotor-layer wind speed forecasts could be reduced by 5-20% in winter by improving the turbulent mixing lengths, horizontal diffusion, and gravity wave drag. The model improvements made in WFIP2 are also shown to be applicable to regions outside of complex terrain. Ongoing and future challenges in model development will also be discussed.

GSD, CIRA, CIRES scientists present at 2019 National Weather Association Annual meeting

September 7-12 Four GSD, CIRES, and CIRA scientists will present at the 2019 National Weather Association Annual Meeting in Huntsville, AL. Titles include “Digital Aviation Services in the NWS,” “INSITE: IDSS for Aviation Weather,” “An Update on the RAP/HRRR Models and a look ahead,” “The Potential for Hazard Services: Science, Communication, and Collaboration for the NWS,” and “An update on CIRA's GOES 16/17 Proving Ground efforts.”

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