That I had ants.
I think the rain puts them on the move and brings them inside.
Sure enough there were ants in my sink area right where I expected to find them. Swift action without prevarication is required in situations like this. The only thing that gets them for sure is Terro ant killer.
You gotta check if they are protein/fat seeky or sugar seeky. This group went after the straight solution but have really gone gangbusters on the peanut-butter Terro mix.
Usually, after the Terro I'll see them once or twice until the season is cool again; but they'd be omnipresent if I didn't use it. Sprays, wiping the counter with bleach etc, are futile and this is what I've resorted to.