The City of Rochester’s Cool Sweep Heat Emergency operations will be in effect tomorrow, Friday, July 19 & Saturday, July 20. The following Rochester Public Library locations will be serving as Heat Emergency Cooling Locations: Arnett Branch Library, Friday, 11 a.m. to 9 p.m.; Saturday, 10 a.m. to 6 p.m., 310 Arnett Blvd. Lincoln Branch Library, Friday, noon to 9 p.m.; Saturday, noon to 6 p.m., 851 Joseph Ave.  Maplewood Branch Library, Friday, 11:30 a.m. to 9 p.m.; Saturday, 10 a.m. to 6 p.m., 1111 Dewey Ave. Winton Road Branch Library, Friday, 11 a.m. to 9 p.m.; Saturday, 11 a.m. to 6 p.m., 611 N. Winton Rd.