UPDATE: As of 10:30 a.m. at least a quarter of an inch of rain has fallen in Columbia after a heavy shower spread through the city. Sanborn Field on the University of Missouri Campus is reporting 0.31". The Columbia Regional Airport is reporting 0.17" Showers from Thursday night through this morning have brought steady light to moderate, if not at times heavy, rainfall to some in the lake region. More rain and even thunderstorms are anticipated,…