Hi Christopher - Go to this website:   https://radar.weather.gov/?settings=v1_eyJhZ2VuZGEiOnsiaWQiOiJ3ZWF0aGVyIiwiY2VudGVyIjpbLTExMi4wOTUsNDEuNzAxXSwiem9vbSI6OCwibG9jYXRpb24iOlstMTEyLjE1NCw0MS43MzddfSwiYmFzZSI6InN0YW5kYXJkIiwiY291bnR5IjpmYWxzZSwiY3dhIjpmYWxzZSwic3RhdGUiOmZhbHNlLCJtZW51Ijp0cnVlLCJzaG9ydEZ1c2VkT25seSI6ZmFsc2V9#/     
At the bottom of the weather map there is a color bar that shows the different colors.  The best I can make out is the Gray color shows threating clouds but no preciptation.  Green is rain and white is snow. 
Jim Williams