National Weather Service United States Department of Commerce
...OMAHA WEATHER RADAR IS DOWN FOR SCHEDULED MAINTENANCE...

The weather radar at the National Weather Service in Omaha/Valley
is down for maintenance, thus no radar information is being 
transmitted. 

If severe weather is threatening during the radar outage,
forecasters will use surrounding radar sites to interrogate storms
and will still be able to provide timely and accurate warning
services.

The exact outage duration is unknown, but will 
likely be through 4pm today

The surrounding radar sites serving parts of eastern Nebraska and
southwest Iowa include:

Des Moines (KDMX)
Kansas City (KEAX)
Topeka (KTWX)
Hastings (KUEX)
North Platte (KLNX) (will be down for an upgrade until 3pm)
Sioux Falls (KFSD)

Visit radar.weather.gov to access alternate NOAA weather radar 
sites.