What does this mean?
I hate stuff like this.
There are at least three of these signs on about a ten minute stretch of highway and I have no idea what they mean. There's not even a way to find out either. No website to visit. No date to Google. What am I supposed to do? Google the letter M?
On a brighter note, there's a 40% chance of rain this weekend.
If you don't think that's a bright note then you clearly don't live in a place where it's been 105 degrees for three weeks.