NOAA to announce major upgrades to U.S. weather model March 22

UPDATED: March 19, 2021. This event has now been rescheduled for Monday, March 22 at 1 p.m. Eastern. Please see call-in details below.
March 15, 2021
NOAA's powerful Global Forecast System model was upgraded today, providing forecasters with a more accurate 4D picture of how a weather system will evolve. Gray, blue and white colors depict moisture in the atmosphere on May 11, 2016, over North America.

On March 22, NOAA’s Global Forecast System — commonly referred to as the American Model — will undergo significant upgrades to boost weather forecasting capabilities across the U.S. and the globe.

The Director of the National Weather Service and an expert from NOAA’s Environmental Modeling Center will discuss what is new and improved and will answer questions from reporters.


  • Media teleconference followed by Q&A


  • Monday, March 22, 1:00 p.m. ET


  • Louis W. Uccellini, Ph.D., Director, NOAA’s National Weather Service
  • Vijay Tallapragada, Ph.D., Chief of the Modeling and Data Assimilation Branch, NOAA’s Environmental Modeling Center


  • This briefing is for credentialed reporters only.

In the U.S.: 888-324-8119

International: 1-312-470-0132

Passcode: WEATHER

For one-on-one interview requests after the teleconference, please contact Lauren Gaches at or (202) 740-8314 to make arrangements.

Media contact

Lauren Gaches, (202) 740-8314