The fact that non sequitor isn't in common use is pretty unfortunate. Because it's a term for a thing I do regularly in conversation. I was also scared you were going to tell me some reason not to use weather underground. I'm relieved. I'm not a weather nerd but I have 4 weather apps on my phone because the weather can be important and I'm not the kind of person who complains when the forecast is wrong because I know it's an almost an impossible feat to attempt in the first place. If you complain about TV weather men being wrong you should be given a Farmer's Almanac and told to deal with that to guess if you're going to get wet
When I non-sequit here it feels like a criminal violation, and all off-topic talk should be relegated to pubski. Sometimes I even feel remorse for bumping a post such as this one with irrelevant comment chains, just like I'm doing this very instant. But not badly enough to forego pushing "contribute"... Then, maybe several minutes to an hour or two later, I'll sometimes add an edit with slight signs of remorse.
The TV guys get short shrift. They have to say "looks like it might rain" and if it doesn't rain they're full of shit. On the other hand, the NWS gets to say "65% chance of rain" and if it doesn't rain the probability just wasn't high enough. They're saying the same thing.