The long-awaited upgrade to NOAA's GFS model is up and running. It will be run in parallel to the old model for comparison until September.
https://www.npr.org/2019/06/13/73233...-to-get-better
"The U.S.
government is juicing up its
weather forecasting
power.
This week, the National Oceanic and Atmospheric Administration announced that it has upgraded its main
weather forecasting model, called the Global
Forecast System.
"Virtually any aspect of the weather
forecast — whether it is temperature or precipitation — will see overall improvement with this upgrade," Brian Gross, director of the Environmental Modeling Center at the National Weather
Service, said during a conference call with reporters.
NOAA scientists say the new system will also be better at predicting major weather
events such as hurricanes by more accurately predicting a storm's path and intensity.
To make such improvements, NOAA's Global Forecast System is getting a new
engine, or "dynamical
core," called the Finite-Volume Cubed-Sphere."