I’ve registered for severe weather alerts on the MeteoSwiss app. I specifically use it for hail warnings so I can shift my car and park it in a nearby underground shopping centre car park until it passes.
Storm warnings out for a lot of places in Switzerland. Hopefully will be bringing the heat down over the next day or two. 
We’re in for a steamy stormy hot week. No relief until Friday, when it will be 26. Then on the weekend cool-ish weather returns. We sleep during the day on the cool lower levels and stay up at night on the balcony. Unfortunately, the A/C unit is in storage in PT. Ooops.
Big storms over central Switzerland:
Right on the edge of the storm and getting significant lightning and thunder. No rain yet. Hope we get some. Even if it doesn’t rain, at least it’s cooler.
Sind Donner, sind Blitze (music in the background)
Terrific lightning and thunder just north of ZRH and slightly cooling down.
We had no thunder-storm warning at all for where I live, well not the program I checked with. But we had a long and strong one.
Very nice, no dragging water to the garden tomorrow morning like early today.
We had a very long storm last night with almost continuous lightning, one strange thing was that the thunderclaps were relatively quiet
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We got nothing.
We had pelting rain and, as marton said, nonstop lightning. Bergfex said it came from Graubünden. The garden is soaked, thank goodness.
We had incredibly strong winds.
I opened up the door to let some cool air in and shift some of the heat out, and left it open for a bit whilst I took some photos of the storm.
Now the living room has got a carpet of leaves from nearby trees!
Aka “Heat Lightning”. You likely were at least 15kms away which is as far as the sound travels.
We are in Sörenberg right now and the last evening was awful. There was some damage in our hotel due to the water coming from above and from below due to the overfull storm sewer. The river turned into a raging flow of dirty water, the nearby bridge was nearly damaged by the water and the tree trunks and other garbage brought by the water. Excavators were working through the night and are still working. They are digging something around the river. The local main road was closed for the evening. But it seems that comparing to Brienz, which is over the mountain from here, we were still lucky.
I thought I was going to miss the Swiss summer but I got a bit of Sun this morning while driving to work 
A review of the storm that caused the floods is given by the Meteo-Schweiz blog. Really curious: the storms did not move much thus the rain happened in the same place. That’s bad luck.
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Don’t think it’s luck. I am hearing of more and more ‘slow-moving’ storms be they local or Category 5 Hurricanes.
Luck in the sense of people exposed to very low probability events.
There are reasons why most of people in Switzerland lives in the foggy Swiss Plateau and and (comparatively) very few people lives in the beautiful mountains: landslides, flash floods, avalanches, extreme cold.
Maybe one day we’ll realize mountains are for people working there. Mountains are not a retirement community for people not familiar with the local conditions. For everyone else, it’s a nice place to visit for a few days. Climb, hike, slide down, ride your bike and get out.
Oh, I was happy that the Sun was shining bright this morning.
I had not realized there’s an ongoing heatwave and some max temperature records were observed last weekend. New Swiss max temp record at 36.3 C last Sunday in Biasca (TI).