Midland WR100B Weather Radio Midland WR100B Weather Radio. If severe weather strikes, play it safe with the WR100B weather alert monitor. With SAME reception that lets you specify the counties from which to receive alerts, and NOAA coverage for up to 93 percent of the US, the WR100B keeps you informed with up to the minute weather, hazard, and civil emergency information. A user selectable alarm alerts you in emergency situations, and a battery backup system ensures you are not left in the dark. From Midland. The use of wireless devices and their accessories may be prohibited or restricted in certain areas. Always obey the laws and regulations on the use of these devices.