It’s mostly been back to the 70s and 80s for highs here. I was wondering if we’d have any further cold fronts this spring, and I was doubting we would. But we did get another this week. Tuesday evening it started to thunder and blow really hard with a very dark sky and then started raining all evening, which we really needed. That was one of the more chaotic cold fronts we’ve had in a while. The temp did drop down again to lows in the 40s and highs in the 70s again the rest of tgis week.

I noticed Dollar General and Family Dollar were still selling the 15 watt and 25 watt incandescent GE bulbs in twin packs. Just recently though, they’ve been replaced by LED snow cone equivalents in a single pack. The higher wattage incandescents are still available.

Also, Dollar Tree has started stocking some GE incandescent bulbs, including the 250 watt 3 way bulbs.

Last weekend I went to Tractor Supply and most of the GE bulbs were on clearance, including 3 way LEDs and 70 W Lucalox, among others. I wonder if they will stock a different brand soon.

Lines are underground where I'm at, but I can say this:
If a line comes down (lets just say in a storm as an example), the flash is *bright*, you can easily see it from a mile away at night! - I've witnessed it in person.
If its not the line supplying your area, obviously you won't be affected by an outage.

Where I'm at a transformer powers 8 to 10 individual houses, if one of those transformers goes out(they have protection to shut down rather than explode(something not all tranformers have)), just that small group of houses will be affected with an outage, not the whole neighborhood. (and same type of thing for apartments, depending on how big the building is, each building might have its own transformer).
And something like that could send an inductive kick down the lines (or simply a burst of 'noise' on the line). That could be enough to RCD/GFCI if its a bit sensitive.

There are no powerlines near my father balcony (Where the flash occur), and the lanterns didn't affected, only my father home affected.
If this would be a transformer or a power line, we should have a power outage, not RCD/GFCI tripping.

Glad that it wasn't a missile.

A close lightning strike can cause weird things to happen, like a RCD/GFCI to trip (without causing any damage) just from the burst of electromagnetic energy... but for that it would have been close enough to hear thunder.

Maybe a transformer blew or powerline came down nearby? Either of those would cause a huge flash. And could easily cause noise/interruption on the lines. 

Missile it wasn't.
There was no thunder after the flash. Also: All of the surge protectors and electronics in my father home are fine. No damage occur.
Also: We have strong winds.

There was a huge rainfall several mins ago.

I would love to have a good heavy rain here (or even better a good snowstorm - that would be more normal this time of year).

And while I'm sleep in my room at my father home, suddenly there was a huge bright white flash outside, and the RCD/GFCI of my father tripped.

Lightning I would assume?
Or maybe a missile?
Whatever it was, stay safe out there.

When I was asleep at my room at my father home, suddenly, at 4:00, there was a huge flash outside, and the RCD/GFCI of my father, tripped.
What can cause this problem?

There was a huge rainfall several mins ago.
And while I'm sleep in my room at my father home, suddenly there was a huge bright white flash outside, and the RCD/GFCI of my father tripped.

Wow, super cool!

Hope this can go to a good home.