A storm that posed the threat of stream flooding to Carson Valley is breaking up without any major damage.National Weather Service radar shows the largest part of the storm moving east of the Sierra and Western Nevada as cooler temperatures started to lower the snow level.Genoa saw eight-tenths of an inch of rain between 10 a.m. and 2 p.m., when the rain stopped. In all, the storm dropped more than 2.5 inches along the base of the Carson Range.Rain turned to snow in the higher elevations on Sunday morning, further limiting the chance of flooding.The National Weather Service said while …