 Arizona News Radio, the National Weather Service issuing a scorcher of a forecast over the weekend for Arizona. There is an excessive heat warning in place for much of the Arizona lower desert through tomorrow. Phoenix meteorologist Catherine Bereslavich says temperatures could get as high as 113. The IT outage that's been impacting computer networks and businesses around the world overnight and this morning being linked back to an update issue. Computer specialist Ken Colburn from Tempe-based Data Doctors explains.