brown hole
n.— «That’s because Pueblo sits at the center of a geographic phenomenon that the locals refer to as a “banana belt” and weather service forecasters call the “brown hole.” “We call it the brown hole because during a serious winter storm, more often than not, the ground here is brown and dry when it’s covered in snow everywhere else,” said NWS meteorologist Steve Hodanish.» —“Meteorologist explains Pueblo’s ‘brown hole’” by Jeff Tucker Pueblo Chieftan (Colorado) Dec. 30, 2006. (source: Double-Tongued Dictionary)