All US Government weather radar across the United States seem to be "down" and no weather radar readings are available from government sources nationwide as of 9:30 PM eastern US time Tuesday.
NOAA has not returned phone calls seeking an explanation for the nationwide outage but this comes just HOURS after the Secretary of State and the Acting Secretary of Defense Briefed both Houses of Congress about Iranian CYBER ATTACK plans!
Thankfully, privately-owned corporate weather radar is still up and working fine. Good thing too, with severe weather blasting the nation's mid-section. Folks still have full information even if government web sites are gone for now.