In addition to blaring sirens and weather-radio alerts, local residents of Glenpool, Oklahoma will now get telephone calls to alert them of an approaching tornado. The City Council has approved a contract with Media Weather Innovations in Colorado, which will alert residents only when a tornado warning is issued specifically for Glenpool. The calls are automatically made as the information is disseminated over the National Oceanic and Atmospheric Administration Weather Wire. The cost of the system is $20,000 to $22,000, or about $3.50 per landline, depending on how many residents will take part in the program. Residents can opt out of the program if they don't want to receive the call. The system won't replace the 10 storm sirens positioned throughout Glenpool, a city of about 8,000 people, 14 miles south of Tulsa. The cost of putting the town's landline telephones on the new system is about the same as buying a new storm siren.