A Rainbow Across Chicago

The sky started to get a really odd color, and there was a storm supposedly headed our way. But instead of the big downpour of rain I was expecting, I looked outside to see this enormous rainbow filling the sky.
The sky started to get a really odd color, and there was a storm supposedly headed our way. But instead of the big downpour of rain I was expecting, I looked outside to see this enormous rainbow filling the sky.
I wandered near where a lot of hoses and wires were located, and spotted this station. When I asked a security guard nearby what was going on, all he said to me was “Rainbow.”
On my way to work this morning, I took out the trash and walked through the alleyway that runs somewhat parallel to Logan Boulevard. Near the end, where it meets up with the alley that runs along Milwaukee… I spotted this odd note, spray-painted into the ground.
Went out on a grocery run today, and spotted a double rainbow all the way, across the sky (so intense). The drive home from Indianapolis involved periods of intense downpours, followed by an near-instant switch to blue skies and sunlight. I got pretty soaked on my way into the grocery store, but by the time I left… the skies were…