This may sound bad at first but read on...
I was talking to my brother today and kept getting a popup on my phone saying something like "call halted due to low signal issues" and then had a button that said dismiss. I would press that and say hello around 3-5 times and get my brother back. During a 10 minute call this happened around 6 or 7 times.
When I got off the phone I called customer service to see if there was tower trouble in my area. It was overcast today but thought maybe a tower got struck by lightning or something cuz I really haven't had any major signal issues with it so far. The CSR said there were no tickets up and they were transferring me to tech support.
While waiting for tech support (on a landline) I looked at my phone location. Now, correct me if I'm wrong, but it shows your location as the nearest city to the tower you are running off of. Normally my location shows as Miller or Ree Heights (South Dakota), but it now said Grandview. I had never heard of that town. I cycled my phone and it went to Ree Heights. I mentioned this and asked if with it being overcast, is it possible to get a different tower which maybe farther away than my home tower, similar to having the atmospheric conditions right to get radio from Chicago or even Mexico (my older brother used to try this when he was in high school). He said that's very possible as atmospheric conditions can greatly affect mobile signal strengths. He went on to say that if signal became an issue we could always get a network extender and so on.
After finishing that call I looked up Grandview, SD. It is about 90-100 miles line of sight away! Now with my location showing as my home tower I called back my brother and had a 20 minute conversation with no hiccups whatsoever. An odd tale I know but I thought some of ya might get a kick out of it, I knew it threw me for a loop when I saw that.