Science briefing for media on major U.S. weather modeling system upgrade

September 21, 2020
Trekking through heavy rain.

On September 23, NOAA’s National Weather Service will make a significant upgrade to the Global Ensemble Forecast System (GEFS) to expand its capabilities and improve weather forecasting.

GEFS is used by meteorologists at the National Weather Service for medium-range weather forecasts and for providing guidance during high-impact weather events including hurricanes, blizzards, and extreme heat and cold.

The Director of the National Weather Service and experts from NOAA’s Environmental Modeling Center will be available to discuss this scientific upgrade and the boost it will provide to NWS weather forecasting capabilities. 


  • Media teleconference briefing followed by Q&A 


  • Wednesday, September 23, 11:00 a.m. ET


  • Louis W. Uccellini, Ph.D., Director, National Weather Service
  • Ivanka Stajner, Ph.D., acting Director, NOAA’s Environmental Modeling Center


  • This briefing is for credentialed reporters only.

In the U.S.: 888-469-1070
International: 1-630-395-0197 
Passcode: 9367445


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