Pima County on Alert as Thunderstorm Warning Takes Effect
Rainfall in Phoenix: Isolated showers seen in parts of the Valley today.
Storms in North Phoenix before noon; Tempe and Scottsdale also experienced a brief isolated storm with less than one-tenth of an inch of rain in some areas.
Rain chances set to increase throughout the day, with the National Weather Service predicting strong to severe thunderstorms in south-central Arizona this afternoon and evening.
Rain chances begin at 20% in the morning, rising to 40% by night. Phoenix has a 70% chance of showers on Friday and a 40% chance on Saturday.