The «Ƶ will test the Campus Alerts text-messaging system on Tuesday, April 3, at noon in coordination with the annual flood siren testing, which begins Monday, April 2. “We’re raising awareness that the city of «Ƶ has the highest risk of flash flooding in Colorado because of its location at the mouth of «Ƶ Canyon, the number of people who live and work within the «Ƶ Creek floodplain, and the numerous other drainage basins running through the city,” said Lacey Croco, CU-«Ƶ emergency manager.