For anyone who isn't familiar with them, I use these sites all day when the west coast fires are going or I'm worried about east coast weather near my family. Figured someone might find them useful regardless of where they live, both are global.

Basically 10-second averages air quality overlaid on googlemaps.

Thing I like is all their specs aren't based on national weather predictions but on real-time individuals/businesses/schools that have purchased their plug&play WIFI laser particulate sensors.

Super cool weather patterns with a google earth spin.

Shows all the hurricanes in the gulf and heading towards right now, and the Pacific winds that have thankfully pushed/pulled the smoke away from the coast for the moment.

Highly customizable in the bottom left.