Alert radios will be inoperable during severe weather NOAA Weather Radio Transmitters across Kentucky will be down through Wednesday due to a critical, but unavoidable systems upgrade. According to the National Weather Service office in Louisville which sends weather alerts to all of the News40 area, the upgrade was already scheduled and cannot be moved to another date, even with the threat of impending severe weather. The outage may also affect some NOAA NEXRAD radar sites.