MacRumors reports that iOS 15 will route people around Flash Flood Warnings. At first glance, this appears to be an extremely smart application of the Dark Sky acquisition. It will be interesting to see if this only applies to Flash Flood Warnings or other warning types. It would also be interesting to see if it applies to flood advisories as well. We often see impassable roads here with a Flood Advisory in effect because Flash Flood Warnings in my county warning area are reserved for the most serious flooding events.