Bad luck I think.
At some point in the future though even good tracks will yield rain along the coast more often. Not always, but a higher probability.
@bluewave why is the 7 year snowfall running mean most significant?
In other words how did we arrive to 7 years instead of 5 or 10 or some other number?
And you're off by half.
There's a giant blob of 1.8 to 2 inch amounts on that map.
That's about average for a two week period for this part of the country.
It's a horrible design, how about moisture damage to the structure? And if that soil gets water logged from rain, the weight would be absolutely enormous.
The last "event" that dropped a coating to an inch and was gone by the next evening is at fault, they dropped 100 gigatons of salt on the streets for practically nothing.