Tornado siren test Friday in Hennessey Posted in: News The Town of Hennessey will have a tornado siren test at noon Friday, May 10, weather permitting. If there is any chance of severe weather, the test will be canceled, said Tiffany Tillman, town administrator.PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!