DETROIT – Temperatures jump back above normal then fall right back down, all while we hunt for any sign of a single snowflake or raindrop. We’ll get there on Wednesday, with our warmest high of the week. Beyond that temperatures come right back to near normal levels, around 40 in the afternoons. The cold front that will drop temperatures for Thursday, along with a trailing trough, should sail through with very little moisture. AdNext Big ThingThe next big weather impact should come with a strong low pressure center arriving Wednesday.