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Blitzortung – real time lightning strikes around the world

blitzortung.org

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Re: Blitzortung – real time lightning strikes around the world

#41

For my kids, I have a virtual light switch in HomeKit called "Shower Is Safe". It's pinned to the top of the Home app. I use the Home Assistant integration to fetch this data and run some calculations on the past few minutes of lightning activity. Since the API returns lightning strike time and bearing from a given location, I can (in combination with wind direction) determine if the lightning is approaching or reced…

Nice, what are the odds though? I searched around but couldn’t find any hard stats.

Is this like nuclear bunker in my basement type of precaution?

Re: Blitzortung – real time lightning strikes around the world

#42

For my kids, I have a virtual light switch in HomeKit called "Shower Is Safe". It's pinned to the top of the Home app. I use the Home Assistant integration to fetch this data and run some calculations on the past few minutes of lightning activity. Since the API returns lightning strike time and bearing from a given location, I can (in combination with wind direction) determine if the lightning is approaching or reced…

Nice, what are the odds though? I searched around but couldn’t find any hard stats. Is this like nuclear bunker in my basement type of precaution?

Yes, it's exceedingly rare. But it's one of those "avoiding this activity for an hour could prevent you from dying painfully" things, so we don't shower/bathe/wash dishes when there's lightning.

Re: Blitzortung – real time lightning strikes around the world

#43

For my kids, I have a virtual light switch in HomeKit called "Shower Is Safe". It's pinned to the top of the Home app. I use the Home Assistant integration to fetch this data and run some calculations on the past few minutes of lightning activity. Since the API returns lightning strike time and bearing from a given location, I can (in combination with wind direction) determine if the lightning is approaching or reced…

Wait, why would showering in a lightning storm not be safe? Do you expect the lightning to discharge in the pipes of your house? How? Or is it that your children would be scared if the power goes out when they're showering? That I understand.

Yes, especially in older homes or homes with poor grounding. Lightning can discharge through water supply lines[0]. There are even cases of toilets exploding due to lightning strikes[1]. (Google for more)

Sure, it's exceedingly rare. But it's also exceedingly easy to avoid. I've taught my kids that some decisions are easier when defined as binary rules; judgment calls in cases like this just don't offer any tangible benefit other than "I showered an hour earlier than I would have otherwise."

[0]: https://www.weather.gov/safety/lightning-indoors

[1]: https://fox8.com/news/lightning-blows-up-toilet-after-travel...

MythBusters even did a bit on it. They rated it "plausible".

Re: Blitzortung – real time lightning strikes around the world

#44
post #17

I use their service ( https://www.lightningmaps.org/ ) often, it is perfect for getting an impression about the scale and distance of an incoming storm. It's a bit of a shame, that their detector system project seems to be frozen/dead. Last version (2014, unavailable for orders): https://www.blitzortung.org/en/cover_your_area.php Forum thread (last post 2019): https://www.blitzortung.org/en/forum.php?tid=1656

They just released a new detector so I don't think it is necessarily true that the detector system project is dead. I'm not sure how you get one of those boxes though: https://www.blitzortung.org/en/whats_new.php

I've been on waitlist for years (just checked my email - since 2014) and can't get one. I wish the whole project was more open and I could build my own from provided gerbers/BOM.

Re: Blitzortung – real time lightning strikes around the world

#46

For my kids, I have a virtual light switch in HomeKit called "Shower Is Safe". It's pinned to the top of the Home app. I use the Home Assistant integration to fetch this data and run some calculations on the past few minutes of lightning activity. Since the API returns lightning strike time and bearing from a given location, I can (in combination with wind direction) determine if the lightning is approaching or reced…

What other automations do you have? This one seems so specific I am curious what else you have going on!

Re: Blitzortung – real time lightning strikes around the world

#48

Earlier quoted context omitted.

Wait, why would showering in a lightning storm not be safe? Do you expect the lightning to discharge in the pipes of your house? How? Or is it that your children would be scared if the power goes out when they're showering? That I understand.

Yes, especially in older homes or homes with poor grounding. Lightning can discharge through water supply lines[0]. There are even cases of toilets exploding due to lightning strikes[1]. (Google for more) Sure, it's exceedingly rare. But it's also exceedingly easy to avoid. I've taught my kids that some decisions are easier when defined as binary rules; judgment calls in cases like this just don't offer any tangible…

Ok, blanket advice from US governmental agencies and a Mythbusters episode with electrical and water installations that seem... Very DIY and not up to code? I mean it is mythbusters... IDK.

I suspect power outage in the shower is more dangerous in my case than any other electrical issue... I guess it may be more of a US issue, especially since I am not finding any advice from EU agencies on the matter?...

Re: Blitzortung – real time lightning strikes around the world

#49

For my kids, I have a virtual light switch in HomeKit called "Shower Is Safe". It's pinned to the top of the Home app. I use the Home Assistant integration to fetch this data and run some calculations on the past few minutes of lightning activity. Since the API returns lightning strike time and bearing from a given location, I can (in combination with wind direction) determine if the lightning is approaching or reced…

Would you be willing to explain/share the automation for this?
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