<Tr> <Th> Frequency </Th> <Td> XM 247 SR 184 </Td> </Tr> <Tr> <Th> First air date </Th> <Td> 2004 - 09 - 10 on XM as XM EMergency Alert </Td> </Tr> <Tr> <Th> Format </Th> <Td> 24 / 7 traffic and weather, emergency alerts and news </Td> </Tr> <Tr> <Th> Class </Th> <Td> Satellite radio channel </Td> </Tr>

What channel is the weather channel on xm