Fires at two Madison Gas and Electric substations knocked out power to more than 11,000 customers on what is promising to be a sweltering day of heat and humidity.
An explosion and fire at the utility's main power center sent a plume of thick, black smoke over Madison's east side at about 7:40 a.m. Friday. A second fire near the University of Wisconsin-Madison campus caused police to evacuate Ogg Hall, Smith Hall and the UW Safety Building.