Check out the screen grab. We are just north of center, within walking distance of Istachatta. That dotted line above Istachatta is the county line, and our property is on each side of that line, just west of where it meets the river. The blob of weather in the NE corner appeared within 2 minutes. Amazing. It's serious weather too, and then it just goes away. Daily warnings include this excerpt:

...THUNDERSTORM IMPACT...
THUNDERSTORMS ARE EXPECTED EACH DAY...FROM LATE MORNING THROUGH
EARLY EVENING WITH THE GREATEST COVERAGE DURING THE AFTERNOON.
THESE STORMS WILL BE CAPABLE OF PRODUCING STRONG GUSTY
WINDS...LOCALLY HEAVY RAINS...AND FREQUENT DEADLY LIGHTNING
STRIKES.

I've been sitting outside with a beer listening to the low rumbling mixed in with birdsong and breeze. Great. I'm going back out. It's not raining yet, and it very well may not at all.

Here's the screen grab: