'At currently proposed 5G power levels, satellites may have trouble reading natural signals given off by water vapor. That could set back forecast accuracy to levels last seen around 1980, said Neil Jacobs, head of the National Oceanic and Atmospheric Administration.
“This would result in the reduction of hurricane track forecast lead time by roughly two to three days,” Jacobs told Congress at a hearing earlier this month.
The issue has split the Trump administration, with Commerce Secretary Wilbur Ross, whose agency includes NOAA, warning that critical Earth-science data could be lost. Even the Navy has expressed misgivings. The U.S. Federal Communications Commission, however, went ahead with an auction of spectrum in its drive to advance 5G communications.”