Procedures to change after sirens were silent before tornado

摘要

Emergency officials near Georgia's coast are investigating how to prevent future failures of an outdoor tornadosiren system.The sirens were silent before a tornado passed through the Wilmington Island area east of Savannah on May 4,the Savannah Morning News reported.A computer system used by emergency managers was undergoing scheduled maintenance that day, NationalWeather Service spokeswoman Maureen O'Leary said.Ron Morales of the weather service's Charleston, S.C., office said the service typically emails customers whenthe system is offline for maintenance, but that didn't happen before the Saturday outage.