Adventures in cold fronts

It's 13.3°C at Inner Drive Technology World HQ right now, down from 21°C around 10:15. This graph gives you a sense of what happens when warm southwest wind gets bumped aside by a fast-moving cold front boosted by winds off the lake:

The forecast for tomorrow shows a more gradual rise and decline in temperatures, peaking around 16° between 4pm and 5pm. That bodes well for my plan to take Cassie to the dog park and myself to get a slice of Jimmy's pizza for lunch.