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.
![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. (Image credit: NOAA) 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.](/sites/default/files/styles/landscape_width_1275/public/legacy/image/2019/Jun/PHOTO%20-%20GFS%20Model%20Run.jpg?itok=QCdOvUrn)
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. (Image credit: NOAA)