A grass fire broke out northeast of Lyons Wednesday evening and some residents were ordered to evacuate before the fire was contained 90 minutes later.Residents in the Eagle Ridge subdivision were told to evacuate.Boulder County made 42 phone notifications, advising residents to evacuate immediately because of the high winds and fast-moving 10- to 15-foot flames.Emergency officials opened an evacuation center at Lyons High School for individuals displaced by the Stone Canyon Fire. About 15 families showed up but then left. The shelter was closed at 8:30 p.m."It is anticipated that the the evacuations will remain in effect for several hours as crews assess any potential for additional fire activity in the Lyons Stone Canyon area," said a statement from the Boulder OEM.The fire, originally reported at 2 acres, started behind 931 Stone Canyon Road around 6 p.m., according to the Boulder Office of Emergency Management. It was estimated at 20 acres when it was contained at 7:20 p.m.At 9 p.m. Stone Canyon was open at 66 (Ute Hwy), but remained closed at Eagle Ridge.Jenny Begin and her family live on Stone Canyon Drive, uphill from the fire.She took a spectacular photograph of tall flames on the crest of a hill when the wildfire was taking off."It was pretty intense earlier," Begin said.But then she said "about 50 fire trucks" arrived to fight the fire. "They're just mopping up hot spots now," she said about 6:50 p.m.'We're not too worried anymore. We're eating dinner now," said Begin.But Begin said she and her husband plan to make a list Wednesday night of valuables and heirlooms to pack, so they're ready for the next fire emergency.Firefighters from Lyons and surrounding departments were called in to fight the fire.There's no word yet on the cause of the fire but high winds have toppled many power lines in the area.