For Berrien County, the main repeater used for Skywarn is 146.820 (located in Sister Lakes).
The alternates are 146.720 (St. Joseph) and 147.180 (Niles).
The Skywarn net meets at 7:00 PM on Wednesdays.
The ARES net uses the same frequencies on Sunday evenings at 7:00 PM. Usually the same group of guys on both evenings.
Randy, K8TMK