Oakland County Homeland Security will be testing the outdoor warning siren system in 2010 on:

..The first Saturday of each month at 1:00 p.m., with the following exceptions:

• April 3 (Saturday); cancelled due to SWAW testing.
• April 14 (Wednesday) at 1:00 p.m. (Special test in recognition of Severe Weather Awareness Week).

• Siren tests are NOT conducted during December, January or February due to winter weather.

More Information: 

 Oakland County Web site - Tornado Information and Safety