National Weather Service United States Department of Commerce

At the National Weather Service Office in Grand Rapids, we issue the 1050 MHz tone alert and the SAME tone on NOAA Weather Radio for the following products:

Blizzard Warning Civil Danger Warning Civil Emergency Warning
Flash Flood Warning Earthquake Warning Evacuation Immediate
Severe Thunderstorm Watch Fire Warning Hazardous Materials Warning
Severe Thunderstorm Warning Law Enforcement Warning Local Area Emergency
Tornado Watch Nuclear Power Plant Warning Radiological Hazard Warning
Tornado Warning Shelter In Place Warning Required Weekly Test