XM weather. Google it. Takes a subscription, but it's delivered by

satellite, so it will work no matter how high you are.

Eric Greenwell

Eric, This sounded great so I just looked into this. It seems the only satellite product they show is "mosaic" and from the description it sounds like infrared view only. It says it does not show clouds lower than 5000 AGL so may not be useful for tracking cloud streets on all days.

Satellite Mosaic
"Displays cloud cover over the continental United States and hundreds of miles off its coastline. An advanced formula estimates cloud temperatures at various altitudes across the country and converts them into estimated cloud height. Clouds below 5,000 feet are so close to ground temperatures, they are not shown."