Mine us a Midland Pocket model, Identical to one or two of the Radio Shack units shown above. These are good little units but could stand a better antenna (I know how to arrange that).
I strongly suggest a radio with an antenna connector. ONe that lets you use an external antenna. Then you can couple (Connect) to a Scanner antenna or a 2-meter Ham Radio (VHF band) antenna mounted as high as practical on the RV.. I am about to couple such an antenna to my Midland.
WHY.. Well I have several radios, the Midland can not hear NOAA where I'm parked, all the others, save one, can, all the others, save that same one, use external antennas. IN other places I park. Makes no difference.
Also, IF you have a Smart Phone (Android, Windows or Incomplete Operating System (IOS) go to the app store and type NOAA... They have apps like RADAR NOW, which will alert you to weather hazards and Amber Alerts... but might NOT do Fire or some other natural disasters (They do Flood. Oh boy do I know they do Flood.. I'm in the land of daily FLOOD warnings, even if I'm in no danger).